CN101480349A

CN101480349A - Surgical stapling instrument with a geared return mechanism

Info

Publication number: CN101480349A
Application number: CNA2009100034030A
Authority: CN
Inventors: C·P·布德罗克斯
Original assignee: Ethicon Endo Surgery Inc
Current assignee: Ethicon Endo Surgery Inc
Priority date: 2008-01-10
Filing date: 2009-01-12
Publication date: 2009-07-15
Anticipated expiration: 2029-01-12
Also published as: BRPI0901515B1; BRPI0901515A2; BRPI0901515B8; JP5451082B2; CN101480349B; JP2009165827A; EP2078500B1; EP2078500A1

Abstract

A surgical instrument including a firing drive configured to selectively advance a firing member and/or cutting member relative to an end effector and, in addition, a reversing drive configured to selectively retract the firing member and/or cutting member relative to the end effector. In various embodiments, the surgical instrument can further include a switch including relatively movable first and second portions, wherein the first portion can be configured to operably disengage the firing drive from the firing member and, in addition, operably engage the reversing drive with the firing member. In at least one embodiment, the second portion can include a handle extending therefrom which can be motivated by the surgeon in order to engage the second portion with the first portion and move the first portion into position.

Description

The surgical stapling instrument that has geared return mechanism

The cross reference of related application

The application be require to submit on June 22nd, 2007, be entitled as " SURGICALSTAPLING INSTRUMENTS ", serial number is No.11/821, the part continuation application of the priority of 277 common unsettled U.S. Patent application, all the elements of the document engage into this paper by reference.

Technical field

The present invention relates generally to a kind of surgical stapling instrument, more specifically, relate to have be used for the closed ends executor closed-system and be used to the surgical stapler of the trigger system launching to follow closely.

Background technology

Known in the prior art, surgical stapler is generally used for nail is deployed in the soft tissue, to reduce or eliminate the hemorrhage of soft tissue, especially for example when tissue is cut.Surgical stapler such as endoscopic stapler for example can comprise end effector, and this end effector can move or carries out joint motions with respect to the slender axles assembly.End effector is generally used for soft tissue is fixed between first jaw member and second jaw member, and wherein first jaw member generally includes nail bin and second jaw member generally includes anvil block, and nail bin is used for nail is left in wherein removedly.Such surgical stapler can comprise closed-system, is used to make anvil block to pivot with respect to nail bin.But these closed-systems have been closed Shi Buhui in jaw member and have prevented that end effector from carrying out joint motions with respect to shaft assembly.Therefore, when end effector carried out joint motions, end effector may be applied to shearing force on the soft tissue that is trapped between the jaw member.

As mentioned above, surgical stapler can be used for making the anvil block of end effector to pivot with respect to nail bin, to catch soft tissue between nail bin and anvil block.In all cases, anvil block can be used for clamping force is applied on the soft tissue, so that soft tissue is remained between anvil block and the nail bin tightly.Yet if the position of the dissatisfied end effector of surgeon, the surgeon must start the relieving mechanism on the surgical stapler usually so, enters open position so that anvil block pivots, and reorientates end effector then.After this, nail is driven device usually and launches from nail bin, and this driver is fixed together soft tissue layer laterally by the passage in the nail bin and cause that screw top leans against on the anvil block and be out of shape.Usually, known in the prior art, nail is with the formal expansion of some nail rows or nail row, more reliably organized layer is fixed together.End effector also can comprise for example cutting member (such as cutter), and this cutting member advances between two nail rows, to cut off soft tissue after soft tissue layer is by stitching together.

After driver and cutting member are pushed into, driver and/or cutting member must be retracted to their initial position usually in end effector.Surgical stapler in the past has back-moving spring, and after for example surgeon had activated the release-push or toggle switch on the surgical stapler, this back-moving spring bounced back cutting member with respect to nail bin.In various embodiments, first end of back-moving spring can be connected on the housing of surgical instruments and second end of back-moving spring can be connected on the cutting member.Yet such staplers be difficult to be used usually, because the required power of stretching back-moving spring is very big usually when cutting member advances.And such back-moving spring is applied to biasing force on the cutting member when cutting member advances usually, and this can make cutting member return in all cases prematurely, especially advances fully in the embodiment of cutting member at a plurality of strokes that need trigger.Need improve former staplers.

Summary of the invention

In at least a form of the present invention, surgical instruments can comprise shaft assembly, can be with respect to the end effector and the locking mechanism of shaft assembly motion, this locking mechanism is used for engages axle assembly and/or end effector, with the relativeness between fixing or lock shaft assembly and the end effector.In various embodiments, end effector can comprise anvil block and passage, and wherein passage can be used for receiving nail bin and anvil block movably is connected on the passage.In at least a embodiment, surgical instruments also can comprise the closed-system that is used to produce closed action, and wherein anvil block can be in response to closed action.In various embodiments, closed-system also can be used for engaging locking mechanism and prevents relativeness between locking mechanism latch release shaft assembly and the end effector.

In at least a form of the present invention, surgical instruments can comprise closed-system, and this closed-system for example is used to make the anvil block of end effector to move between open position, part make position and make position.In various embodiments, surgical instruments also can comprise locking piece, and when anvil block is positioned in its part make position and the make position one when locating, this locking piece is used for optionally engaging and the locked closed system.In at least a embodiment, surgical instruments can comprise trigger, this trigger for example anvil block that is used to pivot, and wherein trigger can comprise cam surface and first otch in cam surface.In various embodiments, locking piece can comprise that secondary part and closed driving device can comprise the locking spring, this locking spring is used for secondary part is biased in the cam surface of trigger, makes that secondary part can engage first otch of trigger when anvil block is pivoted to its part make position.In at least a embodiment, when secondary part engaged with first otch, first otch can prevent that the anvil block pivot from entering its open position.In various embodiments, cam portion also can comprise second otch and when anvil block was entered its make position by pivot, secondary part can engage this second otch.

In at least a form of the present invention, surgical instruments can comprise the percussion driving device with percussion part and flexible band, and this percussion part for example is used for advancing cutting member in end effector, and this flexibility band is connected on the percussion part and is used for retraction percussion part.In at least a embodiment, surgical instruments can comprise brake, and this brake for example is used for splicing tpae, thus the motion of restriction percussion part.In various embodiments, the percussion driving device also can comprise spool, when the percussion part is bounced back, and this spool coiling at least a portion band.In at least a embodiment, the percussion driving device also can comprise trigger, this trigger optionally engages with percussion part and spool, make when trigger operationally engages with the percussion part, the actuating of trigger can be used for advancing the percussion part, and when trigger operationally engaged with spool, the actuating of trigger can be used for making spool to rotate and via taking back the percussion part that contracts.

In at least a form of the present invention, surgical instruments can comprise percussion driving device and backward driving device, this percussion driving device is used for optionally advancing percussion part and/or cutting member with respect to end effector, and this backward driving device is used for optionally with respect to end effector retraction percussion part and/or cutting member.In various embodiments, along with the actuating of trigger, the percussion driving device can be used for advancing the percussion part, and backward driving device can comprise gear, and this gear is used for actuating next time along with the trigger percussion part that bounces back.In at least a embodiment, the percussion driving device can comprise ratchet, and this ratchet optionally engages with the percussion part, and to advance the percussion part, wherein when backward driving device engaged with the percussion part, ratchet can be thrown off from the percussion part.In various embodiments, reversing-gear can comprise gear train, this gear train has first gear and second gear, first gear operationally engages with the percussion part, second gear operationally engages with trigger, wherein second gear is optionally cooperated with first gear, makes that the actuating of trigger can be via first gear and second gear retraction percussion part and/or cutting member.In various embodiments, surgical instruments also can comprise switch, and this switch comprises the first and the second portion that can relatively move, wherein, first can be used for making the percussion driving device operationally to throw off from the percussion part, and backward driving device is operationally engaged with the percussion part.In at least a embodiment, second portion can comprise that this handle can be started by the surgeon from the extended handle of second portion, so that second portion engages and make first's motion in place with first.

More particularly, the present invention relates to following content:

(1). a kind of surgical instruments comprises:

End effector;

The percussion part;

Trigger;

The percussion driving device, this percussion driving device can optionally engage with described percussion part, and wherein, described percussion driving device is used for advancing described percussion part with respect to described end effector when activate the first time of described trigger;

Backward driving device, this backward driving device can optionally engage with described percussion part, and wherein, described backward driving device is used in the actuating subsequently of described trigger with respect to the described end effector described percussion part that bounces back; With

Switch, this switch comprises first and second portion, wherein, described first can be with respect to described second portion motion, described first can move between the primary importance and the second position, when described first is moved in the described second position, described first is used to make described percussion driving device operationally to throw off and described backward driving device is operationally engaged with described percussion part from described percussion part, and described second portion is used for optionally being operated to described first and is moved into the described second position.

(2). according to (1) described surgical instruments, also comprise frame, wherein, described first and described second portion can rotatably be mounted with respect to described frame.

(3). according to (1) described surgical instruments, wherein, described backward driving device comprises cam, and this cam is used to engage described first and described first is moved between the described primary importance and the described second position.

(4). according to (3) described surgical instruments, wherein, described cam is used to engage described first when activate the described first time of described firing trigger.

(5). according to (1) described surgical instruments, wherein, described first is used to make first key operationally to engage with described percussion driving device, to prevent that described percussion driving device from advancing described percussion part, and when described first was moved in the described second position, described first also was used to make second key operationally to engage with first gear and second gear.

(6). according to (1) described surgical instruments, wherein, described second portion comprises that described handle is used to receive the power that is applied on the described handle from the extended handle of described second portion, so that described first moves between the described primary importance and the described second position.

(7). according to (1) described surgical instruments, wherein, described second portion can not make described first be moved into the described second position from described primary importance, has been activated from the described first time up to described trigger to discharge.

(8). a kind of method that is used to handle surgical instruments, this method comprises:

Obtain according to (1) described surgical instruments;

Described surgical instruments is carried out disinfection; With

Described surgical instruments is left in the sterile chamber.

(9). a kind of surgical instruments comprises:

End effector;

The percussion part;

Trigger;

The percussion driving device, this percussion driving device can optionally engage with described percussion part, and wherein, described percussion driving device is used for advancing described percussion part with respect to described end effector when trigger-acted described;

First gear, this first gear operationally engages with described percussion part;

Second gear, this second gear operationally engages with described trigger, and wherein said first gear can be optionally and described second gear engagement; With

Switch, this switch comprises first and second portion, wherein, described first can be with respect to described second portion motion, described first can move between the primary importance and the second position, when described first is moved in the described second position, described first is used to make described percussion driving device operationally to throw off and described first gear is operationally engaged with described second gear from described percussion part, and described second portion is used for optionally being operated to described first and is moved into the described second position.

(10). according to (9) described surgical instruments, also comprise frame, wherein, described first and described second portion can rotatably be mounted with respect to described frame.

(11). according to (9) described surgical instruments, wherein, described first gear operationally engages with a cam, and this cam is used to engage described first and described first is moved between the described primary importance and the described second position.

(12). according to (11) described surgical instruments, wherein, described cam is used to engage described first when the described actuating of described firing trigger.

(13). according to (9) described surgical instruments, wherein, described first is used to make first key operationally to engage with described percussion driving device, to prevent that described percussion driving device from advancing described percussion part, and when described first was moved in the described second position, described first also was used to make second key operationally to engage with described first gear and described second gear.

(14). according to (9) described surgical instruments, wherein, described second portion comprises that described handle is used to receive the power that is applied on the described handle from the extended handle of described second portion, so that described first moves between the described primary importance and the described second position.

(15). (9 described surgical instrumenties, wherein, described second portion can not make described first be moved into the described second position from described primary importance, is discharged from described actuating up to described trigger according to the.

(16). a kind of method that is used to handle surgical instruments, this method comprises:

Obtain according to (9) described surgical instruments;

Described surgical instruments is carried out disinfection; With

Described surgical instruments is left in the sterile chamber.

(17). a kind of surgical instruments comprises:

End effector;

The percussion part;

Trigger;

Backward driving device, this backward driving device can optionally engage with described percussion part, and wherein, described backward driving device is used in the actuating subsequently of described trigger with respect to the described end effector described percussion part that bounces back;

First cam, when described first cam activated, this first cam was used to make described percussion driving device operationally to throw off and described backward driving device is operationally engaged with described percussion part from described percussion part; With

Second cam, this second cam is used for optionally activating described first cam.

(18). according to (17) described surgical instruments, wherein, described backward driving device comprises the 3rd cam, and the 3rd cam is used to activate described first cam when described percussion part is pushed into.

(19). according to (17) described surgical instruments, wherein, when described first cam activated, described first cam is used for first key is biased into described percussion driving device, preventing that described percussion driving device from advancing described percussion part, and be used for second key is inserted described backward driving device so that described backward driving device operationally engages with described percussion part.

(20). according to (17) described surgical instruments, wherein, described second cam comprises from the extended handle of described second cam, and described handle is used to receive the power that is applied on the described handle so that described first cam and described second camming movement.

(21). a kind of method that is used to handle surgical instruments, this method comprises:

Obtain according to (17) described surgical instruments;

Described surgical instruments is carried out disinfection; With

Described surgical instruments is left in the sterile chamber.

Description of drawings

To the description of embodiments of the present invention, above-mentioned and other feature and advantage of the present invention and the mode that obtains these feature and advantage will become clearer with reference to following joint accompanying drawing, and the present invention itself can be better understood, wherein:

Fig. 1 is the front view of surgical instruments according to the embodiment of the present invention;

Fig. 2 is the front view of handle portion of the surgical instruments of Fig. 1;

Fig. 3 is the front view of end effector of the surgical instruments of Fig. 1;

Fig. 4 is the vertical view of the end effector of Fig. 3;

Fig. 5 is the axonometric chart of actuated articulation joints of the surgical instruments of Fig. 1, and wherein some parts of surgical instruments are removed;

Fig. 6 is the actuated articulation joints of surgical instruments of Fig. 1 and the axonometric chart of slender axles assembly, and wherein some parts of surgical instruments are removed;

Fig. 7 is the handle portion of surgical instruments of Fig. 1 and the partial perspective view of slender axles assembly, and wherein some parts of surgical instruments are removed;

Fig. 8 is the front view of the handle portion of Fig. 2, and wherein some parts of surgical instruments are removed;

Fig. 9 is the front view of the handle portion of Fig. 2, and wherein the optional feature of surgical instruments is removed;

Figure 10 is according to the actuator of the joint motions locking mechanism of the surgical instruments of alternate embodiments of the present invention and the front view of end effector closure system, and wherein some parts of surgical instruments are removed;

Figure 11 is the front view of the surgical instruments of Figure 10, shows the actuator of the joint motions locking mechanism that is in the unlocked position and is in the end effector closure system of opening configuration;

Figure 12 is the front view of the surgical instruments of Figure 10, shows joint motions locking mechanism that is in the unlocked position and the end effector closure system that is in the part closed configuration;

Figure 13 is the front view of the surgical instruments of Figure 10, shows joint motions locking mechanism that is in latched position and the end effector closure system that is in closed configuration;

Figure 14 is the front view of closed trigger of end effector closure system of the surgical instruments of Fig. 1;

Figure 15 is the partial perspective view of the closed trigger of Figure 14;

Figure 16 is the partial elevation view of the closed trigger of Figure 14;

Figure 17 is the axonometric chart of lock trigger of the surgical instruments of Fig. 1;

Figure 18 is the front view of the lock trigger of Figure 17;

Figure 19 is the detail view of percussion driving device of the surgical instruments of Fig. 1, and wherein some parts of surgical instruments are removed;

Figure 20 is the axonometric chart of the percussion driving device of Figure 19;

Figure 21 is the partial, detailed view of firing trigger, ratchet and leaning device of the percussion driving device of Figure 19;

Figure 22 is the front view of ratchet, leaning device and pawl restoring spring of the percussion driving device of Figure 19;

Figure 23 is the front view of the ratchet of Figure 22;

Figure 24 is the detail view of the percussion driving device of Figure 19, and showing pivots enters ratchet in the position that engages with the percussion connecting rod of pulling the trigger driving device;

Figure 25 is the axonometric chart of the leaning device of Figure 22;

Figure 26 is the axonometric chart of frame of the surgical instruments of Fig. 1;

Figure 27 is the detail view according to the percussion driving device of the surgical instruments of alternate embodiments of the present invention, and wherein some parts of surgical instruments are removed;

Figure 28 is the detail view of the percussion driving device of Figure 27, shows the ratchet that the percussion driving device is thrown off from the percussion connecting rod;

Figure 29 is the axonometric chart of resetting-mechanism of the surgical instruments of Fig. 1, shows the firing trigger that is in the unactuated position, and wherein some parts of surgical instruments are removed;

Figure 30 is the partial perspective view of the resetting-mechanism of Figure 29, shows the firing trigger that is in actuated position, and wherein some parts of resetting-mechanism are removed;

Figure 31 is the front view of the resetting-mechanism of Figure 29 when being configured to as shown in figure 30 configuration;

Figure 32 is the front view of the resetting-mechanism of Figure 29, shows the balladeur train that resets of the resetting-mechanism that is in actuated position;

Figure 33 is the partial perspective view of the resetting-mechanism of Figure 29, and wherein some parts of resetting-mechanism are removed;

Figure 34 is the ratchet and the axonometric chart of pulling the trigger pin of the percussion driving device of Figure 19;

Figure 35 is the axonometric chart of the resetting-mechanism of Figure 29, shows reset balladeur train and the firing trigger of getting back to its unactuated position that are in the actuated position;

Figure 36 is the partial perspective view of the resetting-mechanism of Figure 29 when being configured to configuration shown in Figure 35, and the return pin that shows resetting-mechanism operationally engages with firing trigger;

Figure 37 is the partial perspective view of the resetting-mechanism of Figure 29, shows the firing trigger that is in behind the spinning reduction pin in the actuated position;

Figure 38 is the other axonometric chart of the resetting-mechanism of Figure 29 when being configured to configuration shown in Figure 37;

Figure 39 is the partial perspective view of the resetting-mechanism of Figure 29, shows the firing trigger of getting back to its unactuated position;

Figure 40 is the axonometric chart of the resetting-mechanism of Figure 29, shows the balladeur train that resets of getting back to its unactuated position;

Figure 41 is the axonometric chart of the resetting-mechanism of Figure 29 when being configured to the configuration of Figure 40, shows the biasing spring of resetting-mechanism and the relativeness between the return pin, and wherein some parts of resetting-mechanism are removed;

Figure 42 is the axonometric chart of the resetting-mechanism of Figure 29 when being configured to the configuration of Figure 40, show the balladeur train that resets and operationally engage, be reset to their initial configuration so that will pull the trigger driving device and resetting-mechanism with the percussion percussion pin of driving device and the return pin of resetting-mechanism;

Figure 43 is the detail view of spool of the resetting-mechanism of Figure 29, shows the reset strap of resetting-mechanism and the relativeness between the staplers frame shown in Figure 26;

Figure 44 is the detail view of the spool of Figure 43, shows the relativeness between the staplers of another kind of embodiment of reset strap and Figure 26;

Figure 45 is the axonometric chart according to the resetting-mechanism of the surgical instruments of alternate embodiments of the present invention, and this resetting-mechanism has anti-reverse ratchet mechanism;

Figure 46 is the front view of the resetting-mechanism of Figure 45, and this resetting-mechanism has the balladeur train that resets that is in the unactuated position;

Figure 47 is the axonometric chart of the resetting-mechanism of Figure 45, and wherein some parts of surgical instruments are removed;

Figure 48 is the axonometric chart of reseting gear, return pin and the anti-reverse ratchet of the ratchet mechanism of Figure 45;

Figure 49 is another front view of the resetting-mechanism of Figure 45;

Figure 50 is the axonometric chart of the actuated articulation joints of Fig. 5;

Figure 51 is the axonometric chart of the actuated articulation joints of Fig. 5, and wherein some parts of surgical instruments are removed;

Figure 52 is the axonometric chart of the actuated articulation joints of Fig. 5, and wherein the optional feature of surgical instruments is removed;

Figure 53 is the axonometric chart of locking piece of the end effector of Fig. 3;

Figure 54 is another axonometric chart of the end effector locking piece of Figure 53;

Figure 55 is the upward view of the end effector locking piece of Figure 53;

Figure 56 is the front view of the end effector locking piece of Figure 53;

Figure 57 is the partial perspective view of the actuated articulation joints of surgical instruments before;

Figure 58 is the axonometric chart of the actuated articulation joints of Fig. 5, and wherein some parts of end effector and slender axles assembly are removed;

Figure 59 is another axonometric chart of the actuated articulation joints of Fig. 5, and wherein some parts of end effector and slender axles assembly are removed;

Figure 60 is the axonometric chart of the end effector locking piece of Figure 53, and this locking piece operationally engages with the locking piece of slender axles assembly;

Figure 61 is the axonometric chart of the slender axles assembly locking piece of Figure 60;

Figure 62 is the upward view of the end effector locking piece of Figure 53 when operationally engaging with the shaft assembly locking piece of Figure 60;

Figure 63 is the axonometric chart according to the actuated articulation joints of the surgical instruments of alternate embodiments of the present invention, and wherein some parts of surgical instruments are removed;

Figure 64 is the vertical view of end effector locking piece when operationally engaging with the shaft assembly locking piece of the surgical instruments of Figure 63;

Figure 65 is the axonometric chart of end effector locking piece when operationally engaging with the shaft assembly locking piece shown in Figure 64;

Figure 66 is the axonometric chart of the end effector locking piece of Figure 64;

Figure 67 is the front view of the end effector locking piece of Figure 64;

Figure 68 is the front view of surgical instruments according to the embodiment of the present invention, and wherein some parts of surgical instruments are removed;

Figure 69 is the front view of the surgical instruments of Figure 68, shows the closed trigger that is in actuated position;

Figure 70 is the front view of the surgical instruments of Figure 68, shows the firing trigger that is in actuated position after activating the first time of firing trigger;

Figure 71 is the surgical instruments of Figure 68 be used to the to bounce back axonometric chart of gear train of reversing-gear of percussion part;

Figure 72 is the front view of the surgical instruments of Figure 68, shows the firing trigger when firing trigger is in the unactuated position after activating release for the first time from it;

Figure 73 is the front view of the surgical instruments of Figure 68, shows the firing trigger that is in actuated position after activating the second time of firing trigger;

Figure 74 is the front view of the surgical instruments of Figure 68, shows the firing trigger that is in the unactuated position at firing trigger after activating release for the second time from it;

Figure 75 is the front view of the surgical instruments of Figure 68, shows the firing trigger that is in actuated position after the actuating for the third time of firing trigger;

Figure 76 is another front view of the surgical instruments of Figure 68, shows the balladeur train that resets at reversing-gear by the balladeur train that resets after being rotated down actuated position;

Figure 77 is the axonometric chart of trigger gear, key gear and return pin of gear train of the reversing-gear of Figure 71;

Figure 78 is the cutaway view of the surgical instruments of Figure 68, and the return pin that shows Figure 77 operationally engages with the trigger gear and the key gear of the reversing-gear of Figure 71;

Figure 79 is the axonometric chart of the return pin of Figure 77;

Figure 80 is the balladeur train that resets of Figure 76 another axonometric chart when being in actuated position;

Figure 81 is the percussion pin of percussion driving device of surgical instruments of Figure 68 and the axonometric chart of engaged pawl;

Figure 82 is the front view of the balladeur train that resets of the surgical instruments of Figure 68 when being in actuated position and reversing-gear and operationally engaging with the percussion part;

Figure 83 is the front view of the surgical instruments of Figure 68, shows the firing trigger that is in actuated position after the 4th actuating will pulling the trigger the part retraction;

Figure 84 is the axonometric chart of the reversing-gear of Figure 76, and wherein some parts of reversing-gear are removed;

Figure 85 is the front view of the surgical instruments of Figure 68, shows the firing trigger that is in the unactuated position at firing trigger after activating release from its 4th time;

Figure 86 is the front view of the surgical instruments of Figure 68, and the balladeur train that resets that shows Figure 76 rotates up and enters the unactuated position and show the closed trigger that is in its unactuated position;

Figure 87 is the axonometric chart according to the surgical instruments of alternate embodiments of the present invention, and wherein some parts of surgical instruments are removed;

Figure 88 is the axonometric chart of the reversing-gear that comprises gear train of surgical instruments shown in Figure 87, shows the rotatable direction of gear of gear train when the percussion part of surgical instruments is pushed into;

Figure 89 is the trigger gear of reversing-gear of Figure 88 and the axonometric chart of return pin, shows the cross section of trigger gear;

Figure 90 is the trigger gear of Figure 89 and another axonometric chart of return pin, shows the return pin disengagement and engages with the operability of trigger gear;

Figure 91 is the trigger gear of Figure 89 and another axonometric chart of return pin, shows return pin and engages again with the trigger gear;

Figure 92 is the axonometric chart of the reversing-gear of Figure 88, shows the direction of rotation of the gear of gear train when the percussion part is bounced back;

Figure 93 is another axonometric chart of the reversing-gear of Figure 88;

Figure 94 is the axonometric chart of the surgical instruments of Figure 87, shows lock trigger, this lock trigger except with trigger engages also with the gear engagement of the reversing-gear of Figure 88;

Figure 95 is the front view according to the reversing-gear of the surgical instruments of alternate embodiments of the present invention, shows the balladeur train that resets that is in the unactuated position, and wherein some parts of surgical instruments are removed;

Figure 96 is the axonometric chart of the reversing-gear of Figure 95, shows trigger gear with ratchet face and the key gear with ratchet face, and wherein the other parts of surgical instruments are removed;

Figure 97 is the sectional elevation of the reversing-gear of Figure 95, shows the configuration that is in Figure 96;

Figure 98 is the axonometric chart of return pin of the reversing-gear of Figure 95;

Figure 99 is the front view of the reversing-gear of Figure 95, shows the balladeur train that resets that is in actuated position;

Figure 100 is the axonometric chart of the reversing-gear of Figure 95, and wherein the ratchet face of trigger gear and key gear is engaged with each other;

Figure 101 is the front view according to the surgical instruments of alternate embodiments of the present invention, this surgical instruments comprises the percussion driving device and the backward driving device of the surgical instruments of Figure 68, some parts of surgical instruments are removed, and the ratchet of wherein pulling the trigger driving device is shown as when it is bounced back with respect to the percussion part and occurs;

Figure 102 is the front view of the surgical instruments of Figure 101, show with pull the trigger part operationally engage ground ratchet;

Figure 103 is the front view of the surgical instruments of Figure 101, shows when the percussion part is by mistake fallen back with respect to its position that needs the groove misalignment in ratchet and the percussion part;

Figure 104 is the front view according to the surgical instruments of alternate embodiments of the present invention, and this surgical instruments comprises anti-reverse mechanism, and wherein some parts of surgical instruments are removed;

Figure 105 is the axonometric chart of return pin of the anti-reverse mechanism of Figure 104;

Figure 106 is the detail view from the extended key of return pin of Figure 105;

Figure 107 is the axonometric chart of index element of the anti-reverse mechanism of Figure 104;

Figure 108 is the axonometric chart of the return pin of Figure 105 when operationally engaging with the index element of Figure 107;

Figure 109 is the axonometric chart of return pin and index element, and the key that shows return pin is positioned in first hole of index element;

Figure 110 a is the key of return pin of Figure 109 and another axonometric chart of index element;

Figure 110 b is the axonometric chart of the key of return pin, and from first hole of index element during to the motion of second hole of index element, this key presses down the index element at the key of return pin;

Figure 110 c is the axonometric chart that is positioned at the key part of the return pin in second hole of index element;

Figure 110 d is the axonometric chart of the key of return pin, and from second hole of index element during to the motion of the 3rd hole of index element, this key presses down the index element at the key of return pin;

Figure 110 e is the axonometric chart that is positioned at the key part of the return pin in the 3rd hole of index element;

Figure 110 f is the axonometric chart of the key of return pin, and from the 3rd hole of index element during to the motion of the 4th hole of index element, this key presses down the index element at the key of return pin;

Figure 110 g is the axonometric chart that is positioned at the key part of the return pin in the 4th hole of index element;

Figure 111 is the sectional elevation of the index element of Figure 107;

Figure 112 is the axonometric chart of the back-moving spring that operationally engages according to the index element of alternate embodiments of the present invention and with the index element;

Figure 113 is the sectional elevation of the index element of Figure 112;

Figure 114 is the axonometric chart according to the index element of another alternate embodiments of the present invention;

Figure 115 is the surgical instruments that comprises anti-reverse mechanism according to alternate embodiments of the present invention, and wherein some parts of surgical instruments are removed;

Figure 116 is the sectional elevation of the anti-reverse mechanism of Figure 115;

Figure 117 is the axonometric chart of the surgical instruments of Figure 115, shows the balladeur train that resets of the anti-reverse mechanism that is in actuated position;

Figure 118 is the sectional elevation of the anti-reverse mechanism of Figure 115 when the balladeur train that resets of Figure 117 is in its actuated position;

Figure 119 is the axonometric chart according to the surgical instruments of alternate embodiments of the present invention, and wherein some parts of surgical instruments are removed, so that the switch of the backward driving device that is used to activate surgical instruments to be shown;

Figure 120 is the partial elevation view according to the surgical instruments of another alternate embodiments of the present invention, and wherein some parts of surgical instruments are removed, so that the switch of the backward driving device that is used to activate surgical instruments to be shown;

Figure 121 is the partial elevation view of the surgical instruments of Figure 120, shows the first of the switch that is in actuated position; With

Figure 122 is the partial elevation view of the surgical instruments of Figure 120, shows the second portion of switch, and this second portion is used for the first of switch is positioned at its actuated position.

The specific embodiment

In a plurality of views, corresponding Reference numeral is represented corresponding parts.The example that this paper provides shows preferred implementation of the present invention with a kind of form, but such example should not be considered to limit by any way scope of the present invention.

Certain exemplary embodiments is described now, with the overall understanding of principle that structure, function, manufacturing and use to apparatus and method disclosed herein are provided.One or more embodiment of these embodiments are shown in the drawings.It will be understood by those skilled in the art that this paper specifically describes and apparatus and method illustrated in the accompanying drawings are nonrestrictive embodiments, and the scope of various embodiments of the present invention is determined by claims fully.Can combine with the feature of other embodiment with the feature of describing shown in a kind of illustrative embodiments.

In various embodiments, surgical instruments according to the present invention can be used for surgical staples is for example inserted in the soft tissue.In at least a embodiment, referring to figs. 1 through 4, surgical instruments 100 can comprise handle portion 102, slender axles assembly 104 and end effector 106.In various embodiments, with reference to Fig. 3 and 4, end effector 106 can comprise nail bin path 10 8 and nail bin 110, and wherein, nail bin 110 can be used for nail is stored in the nail bin 110 removedly.In at least a embodiment, end effector 106 can also comprise anvil block 112, and this anvil block 112 can be pivotably connected to nail bin path 10 8 and can pivot between open position and make position by end effector closure system.Launch in order to follow closely from nail bin 110, surgical instruments 100 can also comprise the percussion driving device that is used to traverse the staple drivers of nail bin 110 and is used for advancing staple drivers in nail bin.In various embodiments, from nail bin expansion nail the time, anvil block 112 can be used for making at least a portion distortion of nail.Though more specifically described the various embodiments of end effector closure system and percussion driving device below, but on June 14th, 2005 bulletin, the U.S. Patent No. 6 that is entitled as " SURGICALSTAPLING INSTRUMENT INCOPPORATING A FIRNIGMECHANISM HAVING A LINKED RACK TRANSMISSION ", 905, on May 16th, 057 and 2006 was announced, the U.S. Patent No. 7 that is entitled as " SURGICALSTAPLING INSTRUMENT HAVING A SINGLE LOCKOUTMECHANISM FOR PREVENTION OF FIRING ", 044, disclose the plurality of embodiments of end effector closure system and percussion driving device in 352, whole disclosures of above-mentioned document are incorporated by reference this paper thus.

In various embodiments, can comprise according to surgical instruments of the present invention being used to make end effector with respect to the slender axles assembly motion of surgical instruments or the system that carries out joint motions.In at least a embodiment, with reference to Fig. 3 to 7, surgical instruments 100 can comprise actuated articulation joints 114, and this actuated articulation joints 114 can movably connect end effector 106 and slender axles assembly 104.In various embodiments, actuated articulation joints 114 can allow end effector 106 with respect to slender axles assembly 104 on single plane or alternative in a plurality of planes, moving.In either event, actuated articulation joints 114 can comprise one or more pivot axis 116 (Fig. 5), and end effector 106 can carry out joint motions around described pivot axis 116.In various embodiments, with reference to Fig. 5 and 6, surgical instruments 100 also can comprise locking mechanism 118, and the relativeness between end effector 106 and the slender axles assembly 104 can be fixed or lock to this locking mechanism.In at least a embodiment, locking mechanism 118 can comprise locking piece 120, this locking piece 120 can slide and engage with end effector 106 with respect to end effector 106, so that prevent or suppress relative motion between end effector 106 and the slender axles assembly 104 at least in part.In at least a embodiment, locking piece 120 can be used for engaging (Fig. 5 and 6) with at least one of the tooth 312 of end effector 106, thereby the interaction between locking piece 120 and the tooth 312 can prevent or suppress end effector 106 at least in part around axis 116 rotations, more specifically describe as following.

In various embodiments, with reference to Fig. 7 to 9, locking mechanism 118 also can comprise actuator 122, and this actuator 122 is operably connected to locking piece 120.In at least a embodiment, actuator 122 can comprise pin 124, this pin 124 can be contained in the otch 121 of locking piece 120, make when actuator 122 slides with respect to handle portion 102, but sell the sidewall of 124 butt otch 121 and impel locking piece 120 with respect to end effector 106 motions.In at least a embodiment, actuator 122 can for example 106 be drawn back towards nearside from end effector, so that locking piece 120 is thrown off from end effector 106.Though do not illustrate, can expect other embodiment, wherein for locking piece 120 is thrown off from end effector 106, but actuator 122 distal motion or even can rotate.In either case, locking mechanism 118 also can comprise back-moving spring 126 (Fig. 6), this back-moving spring 126 after actuator 122 is released, can be used for making locking piece 120 towards end effector 106 for example towards distal movement, so that locking piece 120 engages with end effector 106.Submit on April 7th, 2005, serial number is No.11/100,772, the U.S. Patent application that is entitled as " SURGICAL INSTRUMENT WITH ARTICUALTING SHAFT WITHSINGLE PIVOT CLOSURE AND DOUBLE PIVOT FRAMEGROUND ", JIUYUE in 2005 submission on the 29th, serial number is No.11/238,358, the U.S. Patent application that is entitled as " SURGICAL INSTRUMENT WITHARTICUALTING SHAFT WITH RIGID FIRING BAR SUPPORTS ", and submission on July 24th, 2006, serial number is No.11/491,626, be entitled as in the U.S. Patent application of " SURGICAL STAPLING AND CUTTINGDEVICE AND METHOD FOR USING THE DEVICE " and disclose other locking mechanism, therefore the full content of above patent application engages into this paper by reference.

In various embodiments, with reference to Fig. 1 and 2, actuator 122 can have suitable profile, makes the surgeon can grasp the outer surface of actuator 122 and proximad pulling actuator 122 as mentioned above.In order to make actuator 122 motions, in at least a embodiment, the surgeon for example can be placed on hands on the handle grip 127 and with its another hands and be placed on the actuator 122, makes the surgeon can make actuator 122 with respect to handle grip 127 motions.In other different embodiments, with reference to Figure 10 to 13, actuator 122 ' can be constructed such that the surgeon can only need a hand operated surgical instruments.More specifically, in at least a embodiment, actuator 122 ' can comprise from actuator 122 ' extended hook or lobe 115, and this hook or lobe 115 can allow the surgeon to hold handle grip 127 with one and distad stretch out at least one finger from this hands and catch at least one lobe 115 and proximad pulling actuator 122 ' as mentioned above.Though actuator 122 ' has lobe 115 as described here, actuator 122 or other any suitable actuator can comprise that also lobe 115 and/or any other can help the suitable feature portion of surgeon with a hand operated surgical instruments 100.In at least a embodiment, lobe 115 can be to comprise at least in part and/or scribble elastomeric material or " soft contact " material, and this can improve the surgeon to the grasping of lobe 115 and can provide benefit on other ergonomics for the surgeon.In various embodiments, actuator 122 ' for example operationally engages with slender axles assembly 104, makes that end effector 106 and slender axles assembly 104 can be by actuator 122 ' around the longitudinal axis rotations.In these embodiments, the surgeon can be by making end effector 106 carry out joint motions and/or making that end effector 106 rotation is in place to be positioned at the surgical site place with end effector 106 as mentioned above.In at least a embodiment, the surgeon can be by being placed on finger on one of them lobe 115 and the power that applies is come revolving actuator 122 ' thereon.In various embodiments, the surgeon can be by being placed on finger on the lobe 115 and preventing that any motion of not expecting of actuator 122 ' is held in place actuator 122 ', correspondingly is held in place end effector 106.

In various embodiments, according to surgical instruments of the present invention can comprise for example be used for end effector 106 is closed or be clamped in system on the soft tissue.In at least a embodiment, with reference to Fig. 2,5,8 and 9, surgical instruments 100 can comprise closed trigger 128, kinematic link 130, driver 132 and closure tube 134.In various embodiments, along with the actuating to closed trigger 128, closed trigger 128 can make kinematic link 130, driver 132 and closure tube 134 distal motion.More specifically, in at least a embodiment, kinematic link 130 can comprise first end that is pivotably connected on the trigger 128 and be pivotably connected to second end of driver 132, thereby trigger 128 can make kinematic link 130 forward and make driver 132 along the axis slip that is limited by driver guiding piece 136 (Fig. 8) towards the rotation of handle grip 127.In various embodiments, driver 132 can comprise from driver 132 extended lobe 133, this lobe 133 is slidably received within the otch 137 of driver guiding piece 136, makes that otch 137 can limit the path of driver 132 when driver 132 motions.In various embodiments, closure tube 134 operationally engages with driver 132, makes that closure tube 134 can engage anvil block 112 and anvil block 112 is pivoted when driver 132 as mentioned above during distal motion downwards.Mainly with reference to Fig. 5, closure tube 134 can be formed at slides on the actuated articulation joints 114 and anvil block 112 is pivoted with respect to nail bin 110.In at least a embodiment, as shown in Figure 9, closure tube 134 can comprise near-end, and this near-end has the lobe 135 that goes out from this proximal extension, this lobe 135 can be contained in the otch 131 of driver 132, makes driver 132 mobile be passed to closure tube 134.

In various embodiments, as mentioned above, locking mechanism 118 can prevent or suppress relative motion between end effector 106 and the shaft assembly 104 at least in part.Under soft tissue for example is clamped at situation between anvil block 112 and the nail bin 110, relative motion between end effector 106 and the shaft assembly 104 can be applied to shearing force on the soft tissue that is clamped between end effector 106 and the shaft assembly 104, and this clamping force may soft tissue injury.In various embodiments, with reference to Figure 10 to 13, in order to prevent or to reduce relative motion between the end effector 106 and shaft assembly 104 when end effector 106 is closed at least, end effector closure system can be used for engaging locking mechanism 118, is moved in its latched position to prevent actuator 122 '.In fact, at least a embodiment, closed trigger 128 not only can closed ends executor 106, and it can also prevent that locking mechanism 118 is unlocked.In various embodiments, with reference to Figure 10 to 13, surgical instruments 100 ' can comprise driver 132, driver 132 has appropriate structuring, when driver 132 during by trigger 128 distal motion, near driver 132 butt actuators 122 ' or be arranged on the actuator 122 ', and prevent that thus actuator 122 ' is as mentioned above with respect to actuator 122 proximal motion.More specifically, before trigger 132 activated, shown in Figure 10 and 11, but the slip of the actuator 122 ' proximad, so that locking piece 120 slides and release actuated articulation joints 114 with respect to end effector 106.Yet along with the actuating to trigger 132, with reference to Figure 13, driver 132 can be configured to butt actuator 122 ' or adjacent actuator 122 ' location, thus make actuator 122 ' can not proximal motion so that locking piece 120 throw off from end effector 106.Therefore, end effector closure system can prevent that end effector 106 from carrying out joint motions after being closed, reduced the probability that is delivered to the shearing force that is clamped at the soft tissue in the end effector 106 thus.

Then above, the feedback that end effector closure system can provide end effector to be closed to the surgeon, and in order to make surgeon's release end effector and to make end effector carry out joint motions, the surgeon can make end effector at first must reopen end effector at least in part before carrying out joint motions.More specifically, because the interaction when end effector 106 closures between driver 132 and the actuator 122 ', when the surgeon attempts proximad pulling actuator 122 ' with release actuated articulation joints 114, driver 132 can prevent actuator 122 ' motion basically, send signal to the surgeon thus, but inform that end effector 106 is closed and must at first open end effector 106 before the actuator 122 ' passive movement and actuated articulation joints can be unlocked.In various embodiments, such end effector closure system can prevent that the surgeon from damaging surgical instruments and/or damage is clamped in the end effector or the tissue around end effector.More specifically, in at least a embodiment, when closure tube 134 has been pushed into so that anvil block 112 when closed as described above, closure tube 134 can apply power on anvil block 112, anvil block 112 is remained on make position, and in all cases, this power can produce frictional force in actuated articulation joints 114, can suppress end effector 106 if this frictional force can prevent or can not prevent around actuated articulation joints 114 rotations.In not having the embodiment of aforesaid end effector closure system, if the surgeon attempts to overcome these frictional force under the situation of not opening end effector at first at least in part, so the surgeon may be for example one or more building blocks of the crooked or surgical instruments that fractures.Yet, in various embodiments of the present invention, driver 132 for example can prevent that the surgeon from discharging aforesaid joint motions locking piece 120, therefore, let alone surgeon's release actuated articulation joints 114 of may having no chance makes end effector 106 carry out joint motions.

In various embodiments, can comprise end effector closure system according to surgical instruments of the present invention, this closed-system can for example be arranged on anvil block 112 open position, make position and the closed position of part.In at least a embodiment, whether the surgeon can make anvil block 112 move in the position of part closure and estimate should to reorientate or make end effector to carry out joint motions to end effector before anvil block 112 is moved into its make position.In this embodiment, before anvil block 112 complete closures, anvil block 112 can move with respect to the soft tissue that is positioned between anvil block 112 and the nail bin 110, and can not apply shearing force on this soft tissue or apply at least very big shearing force.In at least a embodiment, anvil block 112 can have appropriate structuring, makes anvil block 112 can not clamp the soft tissue between anvil block 112 and nail bin 110 when being in the position of its part closure.Alternatively, enter its make position and before applying bigger clamping force, anvil block 112 is used in and applies slight clamping force on the soft tissue when anvil block 112 when the position of its part closure.In at least a such embodiment, surgical instruments can comprise trigger, this trigger can move between primary importance (Figure 11), the second position (Figure 12) and the 3rd position (Figure 13), primary importance is corresponding to the open position of anvil block 112, the second position is corresponding to the position of the part closure of anvil block, and the 3rd position is corresponding to the make position of anvil block.In various embodiments, with reference to Fig. 8 and 9, trigger 128 is pivotably mounted on the housing 103 of handle portion 102, makes trigger 128 to rotate between its primary importance, the second position and the 3rd position around pin 129.In various embodiments, with reference to Fig. 8,9,17 and 18, surgical instruments 100 also can comprise lock trigger 148, and this lock trigger 148 can be used for engaging trigger 128 and optionally trigger 128 is locked at least one position of its above-mentioned primary importance, the second position and the 3rd position.In at least a embodiment, trigger 128 can comprise hub switch side 138, the first notches 142 and second notch 144 with cam surface 140, and wherein lock trigger 148 can be used for engaging first notch 142 and second notch 144.More specifically, with reference to Fig. 8 and 9, surgical instruments 100 also can comprise trigger lock spring 150, trigger lock spring 150 can be used for the secondary part 149 of lock trigger 148 is biased on the cam surface 140, make that trigger lock spring 150 can push secondary part 149 respectively in first notch 142 or second notch 144 when first notch 142 or second notch 144 align with secondary part 149.In at least a embodiment, mainly with reference to Fig. 8 and 9, lock trigger 148 is installed on the housing 103 of handle portion 102 by pin 151 pivotly.In various embodiments, trigger lock spring 150 can be compressed between the button part 152 and housing 103 of lock trigger 148, make trigger lock spring 150 can make lock trigger 148 around pin 151 rotations and with lock trigger 148 biased downward on the cam surface 140 of trigger 128.

Then above, at least a embodiment, when trigger 128 was moved in the position that its second position and anvil block 112 be moved into its part closure, first notch 142 can align with secondary part 149.In various embodiments, secondary part 149 can be securely held in first notch 142, make trigger 128 is movable enter its 3rd position and/or get back to its primary importance before, lock trigger 148 may need manually to throw off from trigger 132.In at least a embodiment, with reference to Fig. 8 and 9, the surgeon can push the button part 152 of lock trigger 148, makes lock trigger 148 around pin 151 rotations and secondary part 149 is moving upward and the engaging of disengagement and trigger 128.In other various embodiments, first notch 142 can have appropriate configuration, makes to apply in the process of power at trigger 128 that secondary part 149 can skid off first notch 142.In either case, after secondary part 149 was thrown off with first notch 142, the surgeon optionally made trigger 128 be moved into its 3rd position or releasing trigger 128 and permission trigger spring and for example trigger 128 is returned to its primary importance.In at least a alternate embodiments, first notch 142 and secondary part 149 can be configured to, trigger 128 be moved enter its second position after, trigger 128 must be moved before can getting back to its primary importance and enter its 3rd position.In either case, at least a embodiment, when trigger 128 was moved into its 3rd position and anvil block 112 and is moved into its make position, second notch 144 of trigger 128 can align with secondary part 149.Similar to first notch 142, second notch 144 can be used for secondary part 149 is remained on wherein, throws off and/or enough power is applied on the trigger 128 so that secondary part 149 shifts out from second notch 144 from trigger 128 up to lock trigger 148.Subsequently, in various embodiments, the trigger spring can make trigger 128 be moved into its second position from its 3rd position, this and above similar, may require the surgeon that secondary part 149 is thrown off from first notch 142.In at least a alternate embodiments, first notch 142 can be configured to, make secondary part 149 to slide and cross first notch 142 and allow trigger 128 to move to its primary importance, secondary part 149 is shifted out from first notch 142 and need not the surgeon from its 3rd position.

Then above, though do not illustrate, when closed trigger 128 during in its primary importance, the button part 152 of locking piece 148 can for example recessed surgical instruments housing 103 in.In alternate embodiments, button part 152 can be arranged to flush with housing 103 or button part 152 can stretch out from housing 103 a little.In either case, at least a embodiment, when closed trigger 128 was moved into its second position, button part 152 can outwards move with respect to housing 103.Such motion can provide visual feedback to the surgeon, informs that the anvil block of surgical instruments is in the position of its part closure.In addition, the motion of button part 152 can also be finished by auditory feedback and/or tactile feedback.In either case, after button part 152 was outwards moved, the surgeon can make locking piece 148 to throw off from trigger 128 as mentioned above near button part 152.In various embodiments, when trigger 128 when its second position moves to its 3rd position, button part 152 can further outwards move.Can be the visual cues that the surgeon provides anvil block to be in its make position now to above-mentioned similar, such motion, and this can finish by auditory feedback and/or tactile feedback, as mentioned above.Though button part 152 can move when trigger 128 is progressive between its primary importance and the 3rd position as mentioned above outwardly, the present invention is not limited to this.On the contrary, button part 152 or any other suitable indicator can be set in any suitable manner and provide feedback to the surgeon.

In alternate embodiments, though do not illustrate, it is in the closed more position, position of its open position, make position and part that anvil block 112 can be held or be retained in than above-mentioned three positions.In at least a embodiment, anvil block 112 is maintained in open position, make position and two or more centre positions.In such embodiment, anvil block 112 can apply the power that increases gradually on the progressive soft tissue that is being trapped in by these centre positions and in the process that anvil block 112 moves towards its make position in the end effector 106.In at least a embodiment, to above similar, trigger 128 can comprise a plurality of notches corresponding with each centre position of anvil block 112.In various alternate embodiments, though do not illustrate, end effector closure system can comprise ratchet assembly, and this ratchet assembly can allow trigger 128 and correspondingly anvil block 112 be remained in a plurality of positions.In such embodiment, anvil block 112 and trigger 128 can be held in place by ratchet, and this ratchet engages with ratchet pivotly, and ratchet operationally engages with trigger 128.

In various embodiments, with reference to Figure 10 to 13, as mentioned above, the relative motion between actuator 122 ' and the handle portion 102 ' can be limited, so that the scope that control locking piece 120 can move through.More specifically, with reference to Figure 10 and 11, the distal part of actuator 122 ' can comprise that this lobe 123 can be contained in the chamber 125 from actuator 122 ' the extended lobe 123, can be subjected to the proximal wall 117 and distal wall 119 restrictions in chamber 125 in the displacement of this actuator 122 '.In at least a embodiment, when trigger 128 during in its primary importance, shown in Figure 10 and 11, actuator 122 ' can move to from distal position as shown in figure 10 as shown in figure 11 the position than nearside, can be resisted against on the distal wall 119 in distal position protrusions portion 123, than the position protrusions portion 123 of nearside and distal wall 119 butt not.As mentioned above, in this position than nearside, as mentioned above, locking piece 120 can rotate with respect to shaft assembly 104 from end effector 106 disengagements and end effector 106.When trigger 128 during in its second position, with reference to Figure 12, but the range of movement of driver 132 limiting actuators 122 ' makes that lobe 123 can not be oriented to lean against on the proximal wall 117.Yet, at least a embodiment, but the actuator 122 ' proximal motion one segment distance, this distance is enough to so that locking piece 120 is thrown off from end effector 106.In these cases, the surgeon can reorientate end effector 106, although anvil block 112 for example can be partly closed on soft tissue.When trigger 128 is in its 3rd position, as shown in figure 13, driver 132 can distad urge actuator 122 ', makes lobe 132 and distal wall 119 butts or be positioned near the distal wall 119, and actuator 122 ' can sufficient movement with release actuated articulation joints 114.

In various embodiments, can comprise the percussion driving device according to surgical instruments of the present invention, this percussion driving device is used for advancing cutting member and/or staple drivers in aforesaid end effector.In at least a embodiment, with reference to Fig. 8,9 and 19-25, the percussion driving device of surgical instruments 100 can comprise firing trigger 160, the first percussion connecting rod 162, the second percussion connecting rod 164 and percussion part 166.In various embodiments, firing trigger 160 operationally engages with in percussion part 166 and the percussion connecting rod 162,164 at least one, so as slender axles assembly 104 in propelling knife bar 168.In at least a embodiment, knife bar 168 operationally engages with cutting member (not shown) and staple drivers (not shown) in the end effector 106, wherein cutting member can be used for for example cutting and organizing, and staple drivers can be used for nail is launched from nail bin 110.In U.S. Patent No. 6,905, cutting member and staple drivers are disclosed well in 057 and No.7,044,352, be incorporated by reference among the application before the above-mentioned United States Patent (USP), therefore, these devices are not described in detail at this.Other cutting member and staple drivers were submitted to JIUYUE in 2006 on the 29th, serial number is No.11/541,123, the U.S. Patent application that is entitled as " SURGICAL STAPLES HAVING COMPRESSIBLE ORCRUSHABLE MEMBERS FOR SECURING TISSUE THEREIN ANDSTAPLING INSTYRUMENTS FOR DEPLOYING THE SAME ", on January 11st, 2007 submitted to, series number is No.11/652,169, be entitled as in the U.S. Patent application of " S URGICAL STAPLING DEVICE WITH CURVED CUTTINGMEMBER " openly, the whole content of above-mentioned patent application is incorporated by reference this paper thus.

In various embodiments, mainly with reference to Figure 19 and 20, firing trigger 160 can be pivotably connected to the housing 103 (Fig. 8 and 9) of surgical instruments by pin 161.In use, at least a embodiment, firing trigger 160 can pivot around pin 161, so that distad advance percussion part 166 and percussion connecting rod 162,164.In various embodiments, first trigger 160 can comprise otch 159, wherein otch 159 can be used for holding percussion pin 172.In various embodiments, when firing trigger 160 was activated or turn to the contiguous position of handle grip 127 from its position as shown in Figure 2, the sidewall of otch 159 can be used for engaging and distad advancing to pull the trigger with percussion pin 172 selling 172.In at least a embodiment, with reference to Figure 23, the percussion driving device also can comprise ratchet 170, wherein ratchet 170 can comprise hole 171.In various embodiments, hole 171 can be used to hold at least a portion of percussion pin 172, makes that percussion sells 172 can distad advance ratchet 170 equally when percussion pin 172 is distad advanced by trigger 160.In various embodiments, with reference to Figure 24, ratchet 170 can comprise tooth 174, and the percussion part 166 can comprise groove 167, its further groove 167 can be used for holding tooth 174.In use, when ratchet 170 is distad advanced by percussion pin 172 and tooth 174 when engaging with the sidewall of groove 167, ratchet 170 also can distad advance pulls the trigger part 166.In various embodiments, ratchet 170 can be advanced by the path of percussion pin 172 along substantially linear.In such embodiment, otch 159 can comprise the arc profile, and this arc profile can be cooperated with percussion pin 172, and rotatablely moving of firing trigger 160 changed into moving of ratchet 170.In at least a embodiment, the power that is applied on the ratchet 170 can roughly be pointed to distal direction, if not the words of pointing to distal direction fully.Therefore in such embodiment, it is in bond or be stuck in probability on the staplers frame 184 to reduce ratchet 170.

In various embodiments, ratchet 170 can pivot between the primary importance and the second position, and ratchet 170 is operationally thrown off from percussion part 166 in primary importance, and (with reference to Figure 19 and 20) ratchet 170 operationally engages with percussion part 166 in the second position.Mainly with reference to Figure 21 to 25, the percussion driving device can also comprise leaning device 178, and this leaning device 178 can be used for making ratchet 170 to pivot between its primary importance and the second position.In use, when firing trigger 160 activated, ratchet 170 can be at least initially with respect to leaning device 178 motions, but make ratchet 170 at least a portion butt leaning device 178 and make ratchet 170 upwards pivot to enter to engage with the operation of pulling the trigger part 166.In at least a embodiment, mainly with reference to Figure 23, ratchet 170 can comprise groove 175, and this groove 175 can be used for holding from the extended lobe 179 of the middle body of leaning device 178 (Figure 25).In at least a embodiment, when ratchet 170 is distad advanced, but the cam surface in the proximal wall 176 contact projection portions 179 of groove 175, and owing to the power that is applied to by pivotal pin 172 on the ratchet 170, ratchet 170 can upwards be pivoted or be rotated, and makes tooth 174 can be positioned in as mentioned above in the groove 167 of percussion part 166.After ratchet 170 is by pivot, when ratchet 170 by when end effector 106 advances, ratchet 170 can distad drag leaning device 178.More specifically, in at least a embodiment, leaning device 178 can comprise deformable piece 180, this deformable piece can be contained in the otch 182 of staplers frame 184, makes that the interaction between deformable piece 180 and the staplers frame 184 suppresses the motion of leaning device 178 with respect to staplers frame 184 at least in part.In other words, because the stiction between the sidewall of deformable piece 180 and otch 182, can " be dragged " with respect to staplers frame 184 before at leaning device 178 and must on leaning device 178, be applied the power that is enough to overcome these frictional force.

Activated and pulled the trigger after part 166 has been pushed at firing trigger 160, trigger 160 can be released and be returned to its position that does not activate as shown in Figure 2, and ratchet 170 can and retract to its original position as shown in figure 19 from 166 disengagements of percussion part.More specifically, in at least a embodiment, surgical instruments 100 also can comprise trigger spring (not shown), this trigger spring for example operationally engages with trigger 160 and housing 103, wherein after ratchet 170 was thrown off from percussion part 166, the trigger spring can be used for making trigger 160 to drive percussion pin 172 around pin 161 rotations and proximad.In various embodiments, pivot when entering its primary importance from its second position as shown in figure 24 by leaning device 178 as mentioned above at ratchet 170, ratchet 170 can be thrown off from percussion part 166.In such embodiment, ratchet 170 can be moved with respect to leaning device 178 at least in part, but make second cam surface in the distal wall 177 contact projection portions 179 of groove 175, and, make the tooth 174 of ratchet 170 to throw off from the groove 167 of percussion part 166 because trigger 160 or back-moving spring 186 are applied to the power on the percussion pin 172 and ratchet 170 is rotated down.Subsequently, trigger 160 and/or back-moving spring 186 can be with respect to 166 pullings of percussion part or retraction ratchets 170.In various embodiments, to above similar, ratchet 170 is used in otch 182 interior proximads and drags leaning device 178.The above results is that ratchet 170 does not need to be biased in its primary importance or the second position.In all cases, ratchet 170 can be between its primary importance and the second position rotation freely, need not to overcome by biasing spring and be applied to power on the ratchet 170.In fact, in various embodiments, make ratchet 170 only need overcome the gravity of ratchet 170 and any frictional force between the building block around ratchet 170 and surgical instruments in the power of moving between its primary importance and the second position.

In case ratchet 170 has been returned to its initial position, at least a embodiment, the tooth 174 of ratchet 170 can need not to align with groove 167 in the percussion part 166 again.On the contrary, totally with reference to Figure 19 and 20, the tooth 174 of ratchet 170 can align with the groove 163 in the first percussion connecting rod 162.More specifically, the first percussion connecting rod 162 is pivotably connected to percussion part 166, makes when percussion part 166 is distad advanced, and as mentioned above, percussion part 166 can be drawn in the first percussion connecting rod 162 and pull the trigger in the position that part 166 before occupied.Therefore, along with second time of firing trigger 160 activates, ratchet 170 can be pivoted to its second position from its primary importance, makes tooth 174 operationally engage with groove 163 and ratchet 170 can distad advance and pulls the trigger connecting rod 162.In at least a embodiment, percussion connecting rod 162 can distad promote to pull the trigger part 166 and knife bar 168, and correspondingly distad advances cutting member and staple drivers in end effector 106.Subsequently, ratchet 170 can be pivoted to its primary importance from its second position once more, and is bounced back with respect to the first percussion connecting rod 162.In case ratchet 170 is got back to its initial position for the second time, the tooth 174 of ratchet 170 can need not to align with the groove 163 of the first percussion connecting rod 162 again.On the contrary, to above similar, tooth 174 can align with the groove 165 of the second percussion connecting rod 164, and said process can be repeated.

Though do not illustrate, can comprise more than two or be less than two percussion connecting rods according to surgical instruments of the present invention, so that in end effector 106, cutting member and staple drivers be advanced to their desired location.In various embodiments, as more specifically described as the following, percussion part 166 can comprise more than a groove 167, makes ratchet 170 directly to advance percussion part 166 for more than 106 time towards end effector.In at least a such embodiment, ratchet 170 can be bounced back after distad advancing percussion part 166, as mentioned above, make when ratchet 170 is inclined upwardly once more, ratchet 170 can engage another groove 167 in the percussion part 166, and advances percussion part 166 once more towards end effector 106.Therefore, at least a embodiment, can not need to pull the trigger connecting rod 162 and percussion connecting rod 164.

In various embodiments, surgical instruments can comprise one or more spring parts, is used for ratchet 170 is moved at least one of its primary importance and the second position.In at least a embodiment, with reference to Figure 27 and 28, the percussion driving device can comprise ratchet 170 ', percussion pin 172 and leaning device 178 ', wherein to above similar, when ratchet 170 ' was distad advanced, leaning device 178 ' can be used for making ratchet 170 ' upwards to pivot.The percussion driving device also can comprise pivot spring 188, this pivot spring 188 is operably connected to ratchet 170 ', make that ratchet 170 ' can make 188 deflections of pivot spring or elastic bending when ratchet 170 ' when upwards pivot enters its as shown in figure 27 second position.After ratchet 170 ' had been pushed into, ratchet 170 ' can pivot downwards by pivot spring 188 and enter its primary importance as shown in figure 28.More specifically, owing to the potential energy that is stored in when 188 deflections of pivot spring in the pivot spring 188, in case ratchet 170 ' no longer is tilted mechanism 178 ' and percussion pin 172 remains on its second position, pivot spring 188 just can move downward ratchet 170 '.Subsequently, as mentioned above, ratchet 170 ' can be with respect to percussion part 166 and/or percussion connecting rod 162 and 164 retractions.In various embodiments, leaning device 178 ' can not comprise and be used for ratchet 170 pivots are entered second cam surface of its primary importance.In such embodiment, as mentioned above, ratchet 170 ' can be by being applied to the power retraction on the percussion pin 172.In various alternate embodiments, though not shown, leaning device 178 ' and ratchet 170 ' also can comprise cooperation feature portion, are used for making ratchet 170 ' to pivot downwards and enter its primary importance.

In various embodiments, with reference to Figure 19 and 20, surgical instruments 100 also can comprise is with 190, and this is with 190 to can be used for making percussion part 166 and percussion connecting rod 162,164 with respect to end effector 106 motions.In at least a embodiment, first end with 190 for example can be connected on the percussion part 166, makes when percussion part 166 is distad advanced, and is with 190 also can be pulled to the distally.In various alternate embodiments, be with 190 can be connected on the first percussion connecting rod 162 and/or the second percussion connecting rod 164.In at least a embodiment,, make that being with 190 can be by from spool 192 expansion or unclamp with 190 can be when being with 190 during by 166 pullings of percussion parts around at least a portion setting of spool or reel 192.In at least a embodiment, second end with 190 can be connected on the spool 192, makes can not throw off from spool 192 easily under the normal operating condition of surgical instruments 100 with 190.In either case, when being with 190 to be pulled the trigger part 166 pullings, spool 192 can be along clockwise direction or rotation counterclockwise, and this depends on 190 modes around spool 192 settings.For the percussion part 166 that bounces back, spool 192 can be rotated in the opposite direction, so that pull the trigger part 166 and pull the trigger connecting rod 162,164 proximal motion and will be with 190 to be wound on the spool 192.

In various embodiments, be with 190 can reel around spool 192, make and twine around the substantial cylindrical surface of spool 192 with 190.In at least a embodiment, the rotation axis of spool 192 and the distance between the cylindrical surface are equidistant basically around the girth of spool 192.In these embodiments, to be with 190 o'clock in the pulling of proximad as mentioned above, it is constant substantially that the mechanical advantage of spool 192 can keep, and the ability that spool 192 applies pulling force on 190 can keep basic identical.Yet in alternate embodiments, spool 192 can be used for providing the mechanical advantage of variation.In at least a embodiment, spool 192 can comprise the surface of non-cylindrical, can be wrapped on the surface of this non-cylindrical with 190, makes that the distance between the surface of the rotation axis of spool 192 and non-cylindrical is not equidistant around the girth of spool 192.Therefore, in these embodiments, the ability that spool 192 applies pulling force on 190 can change when being with 190 to be wrapped on the spool 192.In at least a embodiment, when being with 190 initial retractions, promptly when the power that for example makes the cutting member retraction can be maximum, spool 190 is as cam and can comprise and can optimize the shape that is used for providing on 190 additional force.

In various embodiments, with reference to Figure 29-42, firing trigger 160 optionally engages with the resetting-mechanism of surgical instruments 100.In at least a embodiment, when firing trigger 160 operationally engages with percussion part 166 via ratchet 170, as mentioned above, actuating to firing trigger 160 can distad advance percussion part 166, and when firing trigger 160 via be with 190 with percussion part 166 when operationally engaging, but to the actuating proximad retraction percussion part 166 of firing trigger 160.In various embodiments, resetting-mechanism can manually be activated, so that firing trigger 160 is operationally engaged with spool 192 from 166 disengagements of percussion part and with firing trigger 160.In at least a embodiment, resetting-mechanism can comprise the balladeur train 194 that resets, the balladeur train 194 that resets can be pivotably mounted on the housing 103 of surgical instruments, makes the balladeur train 194 that resets to pivot between as shown in figure 29 primary importance or the position that does not activate and the second position shown in figure 32 or actuated position.In at least a embodiment, the balladeur train 194 that resets can comprise button part 195, and when applying power on button part 195, button part 195 can be used for the balladeur train 194 that resets is moved to its actuated position from its unactuated position.

When the balladeur train 194 that resets was positioned in its unactuated position shown in Figure 29 to 31, firing trigger 160 can be used to advance as described above percussion part 166, and the gear parts 158 of trigger 160 operationally engages with trigger gear 196.In various embodiments, gear parts 158 and trigger gear 196 can operationally engage, and make trigger 160 can drive trigger gear 196 around the axial-movement that is limited by return pin 198 around the rotation of pin 161.In at least a embodiment, when the balladeur train 194 that resets during in the position that it does not activate, trigger gear 196 can be used for rotating freely around return pin 198, makes the rotation of trigger gear 196 not be passed to or is not delivered to return pin 198 by major part at least.More specifically, with reference to Figure 30, the key 199 of return pin 198 can be biased into trigger gear 196 and be disengaged, and makes the rotation of trigger gear 196 can not be passed to key gear 206 and spool 192.Therefore, when the balladeur train 194 that resets during in its unactuated position, the actuating of trigger gear 196 can not make or can obviously not make at least spool 192 rotations.

After cutting member and staple drivers be pushed in end effector 106, balladeur train 194 movable its actuated positions that enter resetted.In various embodiments, with reference to Figure 30, spool 192 can comprise from its extended cam member 202, and this cam member 202 can contact the balladeur train 194 and balladeur train 194 that resets is rotated down of resetting.In at least a embodiment, cam member 202 can contact the balladeur train 194 that resets in the final actuation process of trigger 160, and trigger 160 advances cutting member and staple drivers in end effector 106.In at least a such embodiment, cam member 202 can contact the balladeur train 194 that resets after the actuating for the third time of actuated triggers 160.In various embodiments, with reference to Figure 32 to 35, when the balladeur train 194 that resets was moved into its actuated position, the balladeur train 194 that resets can be used for making trigger gear 196 operationally to engage with spool 192.In at least a embodiment, with reference to Figure 33 and 35, the balladeur train 194 that resets can comprise biasing spring 200, wherein when the balladeur train 194 that resets during in its unactuated position, spring 200 can be positioned in as shown in figure 33 the position, and when the balladeur train 194 that resets was moved into its as shown in figure 35 actuated position, spring 200 can contact return pin 198 and towards trigger gear 196 bias voltage return pins 198.In at least a embodiment, with reference to Figure 31, the chamber 197 that can comprise D shape in the trigger gear 196 under some situation of following explanation, can hold from return pin 198 extended keys 199 in the described chamber 197 and trigger gear 196 is operationally engaged with key gear 206 and spool 192.In various embodiments, the balladeur train 194 that resets enters the motion of its actuated position and can finish by auditory feedback and/or tactile feedback, and described feedback is informed the surgeon, and the resetting-mechanism of surgical instruments engages with trigger 160.

Then above, when return pin 198 when trigger gear 196 slides, D shape chamber 197 can be oriented to, and makes key 199 can not enter immediately in the chamber 197.On the contrary, with reference to Figure 31, but spring 200 bias voltage return pins 198 make key 199 initially be resisted against on the face 204 of trigger gear 196.Yet when trigger 160 was released and is returned to its position that does not activate, D shape chamber 197 can be rotated and align with key 199, made spring 200 key 199 can be biased in the chamber 197, as shown in figure 36.In at least a embodiment, with reference to Figure 31, when return pin 198 when trigger gear 196 slides, an end of return pin 198 can be accommodated in the otch 193 of the balladeur train 194 that resets, shown in figure 32.After key 199 is inserted in the chamber 197, can makes the drive surface 210 butt keys 199 in D shape chamber 197 and to make return pin 198 rotate to position shown in Figure 37 and 38 activating of trigger 160 next time.In fact, at least a embodiment, can make approximately rotation half way arounds of key 199, make that the basic key 199 (Figure 36) that extends can be become extend upward substantially (Figure 37) by turn when initial downwards the actuating of trigger 160.After this, trigger 160 can be released and trigger gear 196 can be with respect to key 199 rotations, and wherein key 199 can keep the orientation that makes progress substantially shown in Figure 39 to 41.

In various embodiments, mainly with reference to Figure 38, key gear 206 can operationally engage with return pin 198, makes the rotation of return pin 198 can be passed to key gear 206.In at least a embodiment, key gear 206 can comprise key shape hole 212, and this hole 212 can be used for holding slidably the key 199 of return pin 198.In at least a embodiment, when return pin 198 engaged with trigger gear 196, key 199 can operationally engage with the groove 197 of trigger gear 196 and the hole 212 of key gear 206.In various alternate embodiments, key gear 206 can be fixedly mounted on the return pin 198.In such embodiment, when return pin 198 was slided with respect to trigger gear 196, key gear 206 also can slide with respect to trigger gear 196.In various embodiments, totally with reference to Figure 38, spool 192 can comprise spur gear mounted thereto 216, and wherein spur gear 216 can operationally engage with key gear 206, makes the rotation of key gear 206 can be passed to spool 192.In at least a embodiment, when key gear 206 when trigger gear 196 slides, the operability that key gear 206 can be slipped into spool 192 engages.In alternate embodiments, spur gear 216 can have appropriate structuring, makes key gear 206 be in operability with spur gear 216 and engages, and whether be biased to trigger gear 196 with key gear 206 has nothing to do.

Because above-mentioned situation, when the balladeur train 194 that resets was positioned in its shown in figure 32 actuated position, the actuating of trigger 160 can make spool 192 rotations and will twine around at least a portion of described spool 192 with 190.If when the balladeur train 194 that resets activated, key 199 can not operationally engage with trigger gear 196, and spool 192 can manually be rotated with retraction and be with 190 so.In at least a such embodiment, with reference to Figure 33 and 37, bolt or securing member 218 can operationally engage with spool 192, make the energy of rotation of bolt 218 influence the rotation of spool 192.In various embodiments, the surgeon can insert bolt 218 opening in the housing 103 that passes surgical instruments and bolt 218 is engaged with spool 192.In at least a embodiment, surgical instruments 100 also can comprise the counting mechanism (not shown), and this counting mechanism can be counted the actuating of trigger 160, and at least a embodiment, bolt 218 for example can operationally engage with counting mechanism, with spinning reel 192.Therefore, in various embodiments, surgical instruments can comprise first actuator or the main actuator and second actuator that is used for spool 192, and this second actuator can be used for replacing first actuator to come winding reel 192.

In various embodiments, as mentioned above, spool 192 can be used to proximad pulling and be with 190 and proximad retraction percussion part 166 and percussion connecting rod 162,164.More specifically, as mentioned above, percussion part 166 and percussion connecting rod 162,164 can be bounced back with respect to ratchet 170, are repositioned in their original position with percussion connecting rod 162,164 so that will pull the trigger part 166.In such embodiment, especially in the embodiment that ratchet 170 can pivot as mentioned above, the resetting-mechanism of surgical instruments 100 also can be used for keeping ratchet 170 disengagements to engage with the operability of percussion part 166 and percussion connecting rod 162,164, and they can be with respect to ratchet 170 motions simultaneously.More specifically, when the balladeur train 194 that resets is moved into its as shown in figure 35 actuated position, the balladeur train 194 that resets can be used for contacting an end of percussion pin 172 and percussion pin 172 is slided towards ratchet 170, makes percussion pin 172 and ratchet 170 engage and prevent that ratchet 170 from upwards pivoting.More specifically, with reference to Figure 34, percussion pin 172 can comprise first end 220, and this first end for example can comprise taper seat and/or disc, and wherein, when resetting balladeur train 194 contacts first end 220, the balladeur train 194 that resets can promote percussion pin 172 towards ratchet 170.In at least a embodiment, ratchet 170 can comprise groove 173, and when pulling the trigger pin 172 towards ratchet 170 motions, this groove 173 can be used for holding from percussion pin 172 extended keys 222.When key 222 and groove 173 functionally engaged, percussion pin 172 can prevent that ratchet 170 from upwards pivoting and enter and pull the trigger engaging of part 166 and percussion connecting rod 162,164.

After percussion part 166 and percussion connecting rod 162,164 were by retraction, new nail bin 110 can be fixed on the end effector 106, and surgical instruments 100 can be reset, and makes it can be used for cutting and stitching soft tissue once more.In various embodiments, with reference to Figure 39 to 42, the balladeur train 194 that resets can move to its unactuated position as shown in figure 40 from its actuated position shown in figure 32.In at least a embodiment, when applying power on button part 195, the balladeur train 194 that resets can be rotated up or be pivoted.Alternatively, with reference to Figure 29, when lock trigger 148 is rotated up as mentioned above so that secondary part 149 is thrown off when reopening end effector 106 from closed trigger 128, the balladeur train 194 that resets can be moved upward.More specifically, when the button part 152 to lock trigger 148 applied power, lock trigger 148 can rotate up, and made can to contact the balladeur train 194 and balladeur train 194 that resets is moved upward of resetting from lock trigger 148 extended juts 147.In either case, with reference to Figure 42, when the balladeur train 194 that resets moves upward when entering its unactuated position, the balladeur train 194 that resets can be thrown off from ratchet 170 by percussion pin 172, and return pin 198 is thrown off from trigger gear 196.More specifically, the balladeur train 194 that resets can be used for the band taper seat or the circular end 221 of butt percussion pin 172, makes when the balladeur train 194 that resets is rotated up, and the balladeur train 194 that resets can make percussion pin 172 slide away from ratchet 170 and key 222 is thrown off from groove 173.Equally, when the balladeur train 194 that resets moved upward, the sidewall of otch 193 can be used for contacting return pin 198 and return pin 198 is moved away from trigger gear 196 so that key 199 197 disengagements from D shape chamber.In brief, in the embodiment shown at least, when the button part 152 of locking piece 148 is depressed and the balladeur train 194 that resets when being moved upward, surgical instruments can be reset and can be reused once more.

Though above-mentioned surgical instruments can be reset after advancing fully in end effector 106 at cutting member and staple drivers, the button part 195 of the balladeur train 194 that resets for example can be depressed when cutting member and staple drivers are only partly advanced in end effector 106.In various embodiments, the balladeur train 194 that resets also can be included in the directing pin 191 of extending between the relative both sides of the balladeur train 194 that resets.In at least a such embodiment, directing pin 191 can be slidably received in the guide slits 185 (Figure 31) of frame 184, makes otch 185 and pin 191 can limit the path of the balladeur train 194 that resets.In various embodiments, when resetting balladeur train 194 as mentioned above when its actuated position moves to its unactuated position, directing pin 191 and guide slits 185 balladeur train 194 that can be used for guaranteeing to reset engages percussion pin 172 and the return pin 198 and the surgical instrumenties that reset.

In various embodiments, surgical instruments 100 also can comprise brake, and this brake is used to prevent or suppresses the percussion driving device at least in part for example advance in end effector 106 and/or retraction cutting member and staple drivers.In at least a embodiment, with reference to Figure 43, frame 184 can comprise braking surface 187, and wherein braking surface 187 can be used for brake force is applied to and is with on 190.More specifically, when being with 190 to be pulled to nearside and/or distally as mentioned above, frame 184 can have appropriate structuring, make be with 190 slide on the braking surface 187 and be with 190 and braking surface 187 between produce frictional force.In various embodiments, with reference to Figure 44, braking surface 187 ' can have appropriate structuring, makes to be braked with 190 paths between percussion part 166 and spool 192 that face 187 ' interrupts and can apply very big normal force on 190.

In at least a embodiment, when being with 190 to remain static, be with 190 can engage, make when being with when applying pulling force on 190 with braking surface 187 ', with 190 and braking surface 187 ' between static friction can prevent at least initially that leukorrhagia stopping 190 moves with respect to braking surface 187 '.When the pulling force on being applied to 190 surpasses static friction, be with 190 can move with respect to braking surface 187 '.When trigger 160 was repeatedly activated with propelling cutting member and/or staple drivers in end effector 106, such embodiment may be particularly useful.More specifically, after the actuating of trigger 160, ratchet 170 can be as mentioned above with respect to trigger member 166 retractions, and in various embodiments, when ratchet 170 during by retraction, with 190 and braking surface 187 ' between frictional force can prevent or suppress percussion part 166 and percussion connecting rod 162,164 proximal motion and/or distal motion at least in part.For above-mentioned reasons, when ratchet 170 moved with percussion connecting rod 162,164 with respect to percussion part 166, the groove of the tooth 174 of ratchet 170 and percussion part 166 and the alignment between the percussion connecting rod 162,164 can be held.

Equally, at least a embodiment, the rigidity with 190 also can help to pull the trigger part 166 and percussion connecting rod 162,164 is held in place.More specifically, in order to make percussion part 166 " adverse movement " or proximal motion, percussion part 166 must promote to be with 190 by proximad, and in fact will be with 190 to be wound on the spool 192.In various embodiments, the rigidity with 190 can be so that need will be with 190 to be wound on the spool 192 in very big power, and therefore, percussion part 166 can be held in place.Be used to make with 190 around the spool 192 required power of reeling in order further to increase, with reference to Figure 44, the path with 190 can be controlled, makes to be with 190 can not be wound on the spool 192 along direction tangential.More specifically,, will lose by a part so, cause being used for the mechanical advantage of the difference of winding reel 192 with 190 power of transmitting if be to be wound on the spool 192 along non-direction tangential with 190 path.

In various embodiments, surgical instruments 100 can comprise brake, and it can engage with any other suitable ingredient of spool 192 or percussion driving device, is for example unexpectedly bounced back to prevent pulling the trigger part 166 and/or to pull the trigger connecting rod 162,164.In at least a embodiment, though do not illustrate, brake can be moved between the primary importance and the second position, and wherein, when brake during in primary importance, brake for example can be applied to first brake force and be with on 190.In at least a such embodiment, when brake during in the second position, brake for example can be applied to second brake force and be with on 190, and second brake force can be greater than or less than first brake force.In various alternate embodiments, when brake during in the second position, brake can with 190 not engage or not engage with any other part of percussion driving device.In various embodiments, though do not illustrate, surgical instruments 100 can comprise arrestment mechanism, and this arrestment mechanism can be applied to brake force spool 192 and/or be with on 190.In at least a such embodiment, arrestment mechanism can comprise spherical brake component and spring part, and this spring part is used for spherical brake component against at spool 192 and/or be with 190.

In various embodiments, surgical instruments 100 can comprise ratchet mechanism, and this ratchet mechanism can allow spool 192 along the first direction revolution, but can prevent in all cases that spool 192 is along turning round in the opposite direction with first party.In at least a embodiment, with reference to Figure 45 to 49, surgical instruments 100 can comprise ratchet assembly 230, can comprise ratchet 232 and ratchet 234 at this ratchet assembly 230.In various embodiments, mainly with reference to Figure 47 and 48, except ratchet 232 can comprise ratchet 236, ratchet 232 can be to work with above-mentioned key gear 206 essentially identical modes, because ratchet 236 is meshing with ratchet 234, ratchet 236 for example prevented when reset balladeur train 194 ' in its position that does not activate (Figure 47) time ratchet 232 turn round along clockwise direction.More specifically, each ratchet 236 can comprise plane 240, and wherein, with reference to Figure 48, but the edge 235 of one of them plane 240 butt ratchet 234 prevents that thus ratchet 232 from rotating along clockwise direction.

Each ratchet 236 also can comprise inclined-plane 238, at this, when ratchet 232 when counterclockwise turning round, inclined-plane 238 can slide into below the ratchet 234.Because above-mentioned situation, when resetting balladeur train 194 ' in the position that it does not activate the time, ratchet assembly 230 can allow for example distad spur by percussion part 166 to be with 190 at least, but prevents or inhibition zone 190 proximal motion at least substantially.When the balladeur train 194 ' that resets was pivoted in its actuated position downwards, as above description about the balladeur train 194 ' that resets, ratchet 232 can engage with the operability of ratchet 234 towards 196 ' slip of trigger gear and disengagement.Therefore, after this, ratchet 232 can be along clockwise and any one direction rotation counterclockwise, and not from the interference of ratchet 234 or there is not substantial interference at least.In the various alternate embodiments that ratchet 232 does not slide towards trigger gear 196 ', when the balladeur train 194 ' that resets was moved into its actuated position, ratchet 234 can move downward and disengagement engages with the operability of ratchet 236.In either case, when the balladeur train 194 ' that resets during at its actuated position, trigger gear 196 ' rotatable ratchet 232 and cam 192 ' are with 190 and percussion part 166 with retraction.

In various embodiments, with reference to Figure 68 to 86, surgical instruments 400 can comprise the closed-system of the anvil block that is used for the closed ends executor, be used in end effector, advancing the percussion driving device of trigger shaft, cutting member and/or staple drivers, and be used for gear drive backward driving device with respect at least one of end effector retraction trigger shaft, cutting member and/or staple drivers.In at least a embodiment, with reference to Figure 68, closed-system can comprise closed trigger 428, kinematic link 130 and driver 132, wherein with above similar, when closed trigger 428 moved to its actuated position shown in Figure 69 from its unactuated position shown in Figure 68, closed trigger 428 can be used for mobile kinematic link 130 and driver 132.In various embodiments, but the actuating release of closed trigger 428 percussion driving device.In at least a embodiment, the percussion driving device can comprise firing trigger 460, and this firing trigger can move between latched position shown in Figure 68 and the unlocked position shown in Figure 69 when handle 427 rotates at closed trigger 428.In at least a such embodiment, closed trigger 428 can comprise otch or groove 128a, this otch or groove can hold pin or jut 160a, this pin or jut 160a extend from firing trigger 460, wherein when closed trigger 428 during in its unactuated position (Figure 68), the sidewall of otch 128a can be used for anti-shotpin 160a and firing trigger 460 with respect to closed trigger 428 motions or at least obviously motion.When closed trigger 428 activated or is closed, but the sidewall butt pin 160a of otch 128a and firing trigger 460 is moved between its latched position shown in Figure 68 and the unlocked position shown in Figure 69.In such unlocked position, otch 128a can be thus oriented so as to allow pin 160a and move in otch 128a, allows firing trigger 460 with respect to closed trigger 428 motions and propelling percussion driving device, as described in more detail below thus.

In various embodiments, with reference to Figure 68, the percussion driving device can comprise firing trigger 460, percussion pin 172 and ratchet 170, wherein firing trigger 460 can operationally engage with trigger shaft or percussion part 466 via ratchet 170 and percussion pin 172, so that advance cutting member and staple drivers in end effector.In at least a such embodiment, to above similar, ratchet 170 can upwards pivot and enter and pull the trigger engaging of part 466, makes when firing trigger 460 activated, with reference to Figure 70, firing trigger 460 can distad advance percussion pin 172, ratchet 170 and percussion part 466.After this, with reference to Figure 101, ratchet 170 can be pivoted downwards, throws off and pulls the trigger engaging of part 466, make when firing trigger 460 be released or be returned to its shown in Figure 72 do not activate and the position of release in the time, ratchet 170 can bounce back with respect to percussion part 466 proximads.By comparing Figure 69 and Figure 72, find out easily, first circulation of percussion driving device makes percussion part 466 distal motion and ratchet 170, percussion pin 172 and firing trigger 460 is reorientated, and makes firing trigger 460 can be activated for the second time with further propelling percussion part 466.Under these circumstances, with reference to Figure 102, by activating firing trigger 460 once more, ratchet 170 can upwards be pivoted into to enter with the operability of pulling the trigger part 466 and engage and distad advanced.

In various embodiments, with reference to Figure 101 and 102, percussion part 466 can comprise a plurality of grooves 467, and each groove 467 can hold at least a portion of ratchet 170, makes ratchet 170 engagement groove 467 successively, so that repeatedly advance percussion part 466 as mentioned above.More specifically, at least a embodiment, percussion part 466 can comprise three grooves 467, and these three grooves 467 can allow groove 467 to be advanced at least three times by trigger 460.By way of example, Figure 73 shows the percussion driving device when activate the second time of trigger 460, Figure 74 shows the percussion driving device trigger 460 is got back to its unactuated position after it activates for the second time after, Figure 75 shows the percussion driving device when the activating for the third time of trigger 460, and Figure 82 shows the percussion driving device trigger 460 is got back to its unactuated position after it activates for the third time after.At this, as more specifically described as the following, the percussion driving device can operationally engage with percussion part 466 from 466 disengagements of percussion part and backward driving device, makes that in various embodiments percussion part 466 can be reset with respect to end effector retraction and surgical instruments.Though firing trigger 460 shown in exemplary embodiment in activated three times so that advance percussion part 466 fully, can expect that other can adopt the embodiment greater or less than three firing trigger strokes or actuating.

In various embodiments, aforesaid, surgical instruments 400 also can comprise the backward driving device or the mechanism of gear drive, and it can be used for the percussion of end effector retraction part 466, cutting member and/or staple drivers with respect to surgical instruments.In at least a embodiment, reversing-gear can operationally engage with any other suitable part of percussion part 466 or percussion driving device, so that percussion part 466 proximal motion.In at least a embodiment, with reference to Figure 71, backward driving device comprises gear train, and this gear train for example comprises trigger gear 496, key gear 406, pinion 401, idler gear 403 and spur gear 416.In various embodiments, with reference to Figure 84, backward driving device also can comprise from firing trigger 460 extended gear parts 158, this gear parts 158 can have appropriate structuring, make when firing trigger 460 when being similar to upper type around pin 161 rotations, gear parts 158 can make trigger gear 496 rotate around the axis that return pin 498 limits.In at least a embodiment, gear parts 158 and trigger gear 496 can comprise tooth and/or groove, and this tooth and/or groove can be configured to co-operating and transferring rotational motion between gear 158 and trigger gear 496.

With reference to Figure 77, same to above similar, trigger gear 496 and return pin 498 can have appropriate structuring, make them to be engaged with each other selectively and to throw off.In at least a such embodiment, when percussion part 466 was advanced by the percussion driving device, trigger gear 496 can operationally be thrown off with return pin 498.In other words, when percussion part 466 was advanced by the percussion driving device as mentioned above, trigger gear 496 can be constructed such that it will or will not rotatablely move in fact at least and be delivered to return pin 498.And, in at least a embodiment, with reference to Figure 77 and 79, return pin 498 can comprise from return pin 498 extended keys 499, wherein this key 499 can keep with trigger gear 496 in D shape chamber 497 throw off engaging of operability, up to described backward driving device with pull the trigger part 466 and operationally engage (as described in more detail below).In order to keep key 499 functionally not engage with trigger gear 496, with reference to Figure 84, return pin 498 can comprise

end

498a, and 498a balladeur train 494 that can be reset in this end moves and/or is held in place, and makes key 499 be positioned in 497 outsides, D shape chamber.

When trigger gear 496 and return pin 498 operationally engage as mentioned above, with reference to Figure 71, the pinion 401 of backward driving device can operationally engage with the section of rack 405 of percussion part 466, make that the axis that section of rack 405 can make pinion 401 wind and be limited by axle 407 rotates when percussion part 466 is distad advanced by the percussion driving device as mentioned above.In various embodiments, section of rack 405 can comprise a plurality of teeth and/or groove, this tooth and/groove can be used for will the percussion part 466 translational motion change into rotatablely moving of pinion 401.In various embodiments, idler gear 403 can be installed on the pinion 401 or be integrally formed with pinion 401, makes the translation of percussion part 466 also can rotate idler gear 403.In at least a embodiment, idler gear 403 and key gear 406 can comprise can be used in coordinates and transmits tooth that rotatablely moves and/or groove between them.Equally, spur gear 416 can comprise can and the tooth of key gear 406 and/or groove co-operating and the tooth and/or the groove of transferring rotational motion between spur gear 416 and key gear 406.Therefore, consider above content, the gear 401,403,406 and 416 of the rotatable gear train of propelling of percussion part 466.

In at least a embodiment, with reference to Figure 71 and 84, spur gear 416 can be installed on the indicator gear wheel 492 or be integrally formed with indicator gear wheel 492, makes that indicator gear wheel 492 can be rotated by spur gear 416 when spur gear 416 rotates by key gear 406 as mentioned above.Therefore, at least a such embodiment, the axis that indicator gear wheel 492 is wound is limited by hole 407 of pushing ahead of percussion part 466 rotates.In various embodiments, can comprise at least one labelling on the indicator gear wheel 492, for example letter, numeral and/or any other suitable symbol are used to the number of times that shows that firing trigger 460 has activated.In at least a such embodiment, can comprise window or hole in the housing of surgical instruments, wherein for example numeral " 1 " on the indicator gear wheel 492 can be alignd with window after activating the first time of firing trigger 460.Equally, for example numeral " 2 " after activating the second time of firing trigger 460 on the indicator gear wheel 492 can be alignd with window, and correspondingly, for example numeral " 3 " can be alignd with window after activating for the third time.Alternatively, at least a embodiment, can comprise labelling on the indicator gear wheel 492, this labelling can be corresponding to pulling the trigger the necessary residue actuating of part 466, cutting member and/or staple drivers number of times in order to advance fully with respect to end effector.

After percussion part 466 advanced fully with respect to end effector or at least suitably advances, the balladeur train 494 that resets can be rotated down, with reference to Figure 76 and 82, so that backward driving device, firing trigger 460 and percussion part 466 operationally connect.In various embodiments, the balladeur train 494 that resets can be around pin 494a rotation, and the feasible balladeur train 494 that resets no longer contacts or contact at least substantially return pin 498.After this, with reference to Figure 77 and 78, spring 400 can make return pin 498 towards trigger gear 496 slips or mobile, and at least a portion of key 499 is positioned in the chamber 497.In at least a such embodiment, with reference to Figure 78, spring 400 can be positioned in the middle of the key 499 of frame 484 and return pin 498, makes when the balladeur train 494 that resets no longer contacts end 498a, and spring 400 is expansible and key 499 is moved in the chamber 497.In various embodiments, with reference to Figure 80, when the balladeur train 494 that resets was rotated down as mentioned above, the balladeur train 494 that resets also operationally made the percussion driving device throw off from percussion part 466.More specifically, with reference to Figure 81, the balladeur train 494 that resets can contact the end 220 of percussion pin 172, make percussion pin 172 to slide towards ratchet 170, and it is aforesaid, percussion pin 172 can comprise from percussion pin 172 extended keys 222, but the groove 173 of these key 222 engagement pawl 170, thus prevent that ratchet 170 upwards is switched to and pulls the trigger part 466 and engage.Therefore, when ratchet 170 is prevented from and pulls the trigger part 466 when operationally engaging, the percussion driving device percussion part 466 of can not rejoining, and backward driving device can be under not from the interferential situation of percussion driving device retraction percussion part 466.

Then above, in various embodiments, the balladeur train 494 that resets can for example manually be rotated down by the surgeon or by other clinicians.In various embodiments, totally with reference to Figure 68 and 82, the surgeon can apply power to button part 495, and the feasible balladeur train 494 that resets can pivot downwards around the axis that is limited by pin 494a.Such power can be after-applied in the actuating of the pre-determined number of firing trigger, but in different embodiments, such power can apply before the actuating of the pre-determined number that reaches firing trigger.Except above situation or substitute above situation, at least one gear of reversing-gear can be formed at after the actuating of pre-determined number of firing trigger 460 the contact balladeur train 494 that resets.In various embodiments, with reference to Figure 76, indicator gear wheel 492 can comprise cam 402, and this cam 402 can be used for contacting the part of balladeur train 494 and apply power to the balladeur train 494 that resets along with the actuating for the third time of firing trigger 460 of resetting.In at least a such embodiment, the propelling of percussion part 466 can make the each actuating rotation predetermined amount of indicator gear wheel 492 along with firing trigger 460, make cam 402 balladeur train 494 that can reset in the contact for the third time or during last stroke of trigger 460, firing trigger 460 advances percussion parts 466.In fact, any other suitable gear of indicator gear wheel 492 or reversing-gear can be formed at surgical instruments was rotated predetermined amount before " propelling " mode of operation switches to " oppositely " mode of operation.

If return pin 498 has operationally engaged and has pulled the trigger pin 172 and engaged with ratchet 170 with trigger gear 496, operationally engage with percussion part 466 as mentioned above to prevent ratchet 170, firing trigger 460 can be activated once more so, with retraction percussion part 466.In at least a such embodiment, the follow-up actuating of firing trigger 460 can make 492 rotations of trigger gear, and because the operability between trigger gear 492 and the return pin 498 engages trigger gear 492 rotatable key gears 406.More specifically, with reference to Figure 71,77 and 78, the key 499 of return pin except with key gear 406 in the sidewall of chamber 406a functionally engage, also can functionally engage with the drive surface 410 of trigger gear 492, make the rotation quilt of trigger gear 496 be delivered to key gear 406 via return pin 498.In various embodiments, with reference to Figure 71, the rotation of key gear 406 can make idler gear 403 and pinion 401 rotations, so that proximad drives or retraction percussion part 466.In fact, when trigger 460 operationally engaged with backward driving device, pinion 401 can be along direction rotation, and this direction is opposite with the direction of pinion 401 rotation when firing trigger 460 operationally engages with the percussion driving device.In various embodiments, for example the size of the gear parts 158 of gear 401,403,406,492,496 and trigger gear 460 or pitch radius can suitably be chosen, make percussion part 466 to reset, but other use greater or less than the embodiment that once activates of trigger 460 and can expect by the once actuating of trigger 460.

After percussion part 466 was bounced back, the balladeur train 494 that resets can upwards pivot and enter its unactuated position, with the surgical instruments that resets.In various embodiments, with reference to Figure 85 and 86, surgeon or clinician can apply power on the button part 452 of lock trigger 448, make lock trigger 448 to rotate up and the butt balladeur train 494 that resets.Under these circumstances, lock trigger 448 can rotate up reset balladeur train 494 and the balladeur train 494 that will reset equally and is positioned in its unactuated position.In doing so, the balladeur train 494 that resets can engage the end 221 of percussion pin 172, so that percussion pin 172 slips away and key 222 is thrown off from the groove 173 of ratchet 170 from ratchet 170, allow ratchet 170 when the actuating next time of firing trigger 460, to engage percussion part 466 again thus.When the balladeur train 494 that resets rotates up, the balladeur train 494 that resets also can engage the end 498a of return pin 498, so that key 499 is slipped away from trigger gear 496, return pin 498 is operationally thrown off from trigger gear 496, backward driving device is operationally thrown off from percussion part 466.Subsequently, new nail bin be pulled down and be replaced with to the nail bin of using up can from surgical instruments, makes surgical instruments to be used again.

In various alternate embodiments, surgical instruments can comprise clutch, and this clutch is used to make backward driving device operationally to engage with the percussion part and throws off.In at least a embodiment, with reference to Figure 87 to 94, surgical instruments 500 (similar to surgical instruments 400) can comprise firing trigger 560, this firing trigger 560 can be used for driving the percussion pin and the ratchet of for example pulling the trigger driving device, thereby advances percussion part 566, cutting member and/or staple drivers with respect to end effector.In various embodiments, also to above similar, surgical instruments also can comprise backward driving device, and this backward driving device comprises pinion 501, idler gear 503, key gear 506 and spur gear 516.In at least a such embodiment,, pull the trigger the rotatable gear 501,503,506 and 516 of propelling of part 466, as described in greater detail because the section of rack 505 of percussion part 496 and the operability between the pinion 501 engage.In various embodiments, return pin or key pin 598 can be installed on the key gear 506 or be integrally formed with key gear 506, make spinning movement transmit between pin 598 and key gear 506.In at least a such embodiment, with reference to Figure 89, at least a portion of return pin 598 can comprise the non-circular cross sections that for example has smooth part 598b, and with reference to Figure 92, described part is slidably received within the hole 506b of respective shapes of key gear 506.Same to above similar, firing trigger 560 can comprise gear parts 558, this gear parts 558 can operationally engage with trigger gear 596, makes gear parts 558 can make trigger gear 596 around the axis rotation that is limited by key pin 598, as described in greater detail.

In use, along with the actuating first time of firing trigger 560, firing trigger 560 can rotate around key pin 598 with the above trigger gear 596 that similarly makes, and is not delivered to key pin 598 and can directly will not rotatablely move via trigger gear 596.With reference to Figure 88, activate the first time of firing trigger 560 and can make the direction rotation of trigger gear 596, just clockwise direction (for the ease of discussing) along arrow " A " indication.Equally along with activate the first time to firing trigger 560, percussion part 566 can be along the direction rotary pinion 501 and the idler gear 503 of arrow " B " indication, along the direction rotation key gear 506 of arrow " C " indication, along the direction rotation spur gear 516 and the indicator gear wheel 592 of arrow " D " indication.In various embodiments, shown in Figure 88, trigger gear 596 and key gear 506 can rotate in the opposite direction in the actuation process and can operationally engage each other in the first time of trigger 560, after activating the first time of trigger 560, more specifically described as following.When trigger 560 is released after it activates for the first time or gets back to its unactuated position, the ratchet of percussion driving device for example can be thrown off from percussion part 566, make that pinion 501 and key gear 506 for example do not rotate or do not rotate basically at least when trigger 560 is got back to its initial position or unactuated position.Yet when firing trigger 560 was got back to its unactuated position, trigger gear 596 can be rotated by firing trigger 560, and therefore, trigger gear 596 can be rotated with respect to key gear 506, shown in Figure 89.When trigger 560 was got back to its unactuated position, as mentioned above, the inclined-plane 509 of trigger gear 596 can contact the clutch retainer of key pin 598 (clutch dog) 599, and key pin 598 is moved out from trigger gear 596, shown in Figure 90.Subsequently, trigger gear 596 can be further rotated by firing trigger 590, is surpassed fully by clutch retainer 599 up to inclined-plane 509 and spring 500 can be biased into clutch retainer 599 in the position of drive surface 510 back, shown in Figure 91.Herein, firing trigger 560 can be in its unactuated position.

When activated the second time of firing trigger 560, the ratchet of percussion driving device can keep throwing off from percussion part 566, can rotate trigger gear 596 along the direction of arrow A indication once more but activate the second time of firing trigger 560, with reference to Figure 92.Because the position of retainer 599 is in drive surface 510 back of trigger gear 596, the rotation of trigger gear 596 can cause key pin 598 and key gear 506 along the clockwise direction rotation as the arrow A indication, just along the direction rotation opposite with the arrow C direction.Correspondingly, key gear 506 can be along the direction of arrow E indication (just with arrow B side in the opposite direction) rotary pinion 501 and idler gear 503, and can be along the direction of arrow F indication (just with arrow D side in the opposite direction) rotation indicator gear 592.Because pinion 501 rotated in the actuation process in the opposite direction in the second time of trigger 560, pinion 501 can and will be pulled the trigger part 566 and reorientate or be repositioned at least basically in its position initial or that do not activate with respect to end effector retraction percussion part 566.After this, firing trigger 566 can be released and be returned in its position that does not activate.In this case, the drive surface 510 of trigger gear 596 still can functionally be thrown off from percussion part 566, and key pin 598 and key gear 596 can be held in place.For the surgical instruments that resets, the ratchet of percussion driving device can be released, and makes this ratchet can engage percussion part 566 again when the actuating next time of trigger 560.In such embodiment, the nail bin of using up can be replaced, and makes surgical instruments to be used again.

In various embodiments, with reference to Figure 94, surgical instruments 500 also can comprise lock trigger 548, and it is similar to above-mentioned lock trigger 148, can be used for closed trigger is held in place.In at least a embodiment, lock trigger 548 can be rotated between actuated position and unactuated position for example to distinguish the closed trigger of the locking and unlocking such as closed trigger 428 (Figure 68).In at least a such embodiment, when lock trigger 548 during in its unactuated position, the part 548a of lock trigger 548 can be positioned in the groove 592a of indicator gear wheel 592, to prevent or to prevent at least basically that gear train and percussion part 566 from by mistake being started.In other words, in the time of in part 548a is positioned in groove 592a, above-mentioned percussion driving device and backward driving device can not be operated basically, and therefore pull the trigger part 566 and also can not move basically.When lock trigger 548 is moved into its actuated position keeping or locked closed trigger when in place, the part 548a of lock trigger 548 can be moved or rotate groove 592a, makes above-mentioned percussion driving device and backward driving device to be operated.

In various alternate embodiments, surgical instruments can comprise ratchet mechanism, and this ratchet mechanism is used to make backward driving device to engage with the percussion part and throws off.In at least a embodiment, with reference to Figure 95 to 100, surgical instruments 600 can comprise firing trigger 660, this firing trigger 660 can be used for driving the percussion pin and the ratchet of for example pulling the trigger driving device, to advance percussion part 666, cutting member and/or staple drivers with respect to end effector, to above similar.In various embodiments, same to above similar, surgical instruments also can comprise reversing-gear, this reversing-gear comprises pinion 601, key gear 606 and spur gear 616, wherein, because the section of rack 605 and the operability between the pinion 601 of percussion part 666 engage, the propelling of percussion part 666 can make gear 601,606 and 616 rotations.In various embodiments, return pin or key pin 698 can be installed on the key gear 606 or be integrally formed with key gear 606, make spinning movement to transmit between pin 698 and key gear 606.Same firing trigger 660 can comprise gear parts 658 to above similar, and this gear parts 658 can functionally engage with trigger gear 696, thereby gear parts 658 can make trigger gear 696 around the axis rotation that is limited by key pin 698.

In use, along with the actuating first time of firing trigger 660, firing trigger 660 can make trigger gear 696 around key pin 698 rotations, and can not be directly passed to key pin 698 and key gear 606 with rotatablely moving.More specifically, with reference to Figure 97, trigger gear 696 can comprise hole 696a, and this hole 696a can be constructed such that between the sidewall of key pin 698 and hole 696a and have matched in clearance that therefore, key pin 698 can be at hole 696a internal rotation.And, with reference to Figure 96, key gear 606 can comprise that ratchet face 606c and trigger gear 696 can comprise ratchet face 696c, when firing trigger 666 is advanced by the percussion driving device, key gear 606 and trigger gear 696 can be disconnected from each other or separately, thereby can not transferring rotational motion between key gear 606 and trigger gear 696.After percussion part 666 was advanced fully, to above similar, the balladeur train 694 that resets can for example be rotated down around pin 694a, and the feasible balladeur train 694 that resets can be thrown off from the end 698a of return pin 698, with reference to Figure 99.Under these circumstances, more specifically describe as following, return pin 698 can functionally engage and pull the trigger part 666 and can be bounced back with trigger gear 696.

Then above, in various embodiments, the balladeur train 694 that resets can manually be moved between its unactuated position shown in Figure 95 and its actuated position shown in Figure 99, and balladeur train 494 is similar to resetting.Except or substitute above situation, at least one gear in the gear train (for example indicator gear wheel 692) can comprise cam (for example cam 602), after the actuating of the predetermined extent of firing trigger 660, reset the balladeur train 694 and balladeur train 694 that resets is rotated down of this cam contact.After this, in either case, key gear 606 can slide towards trigger gear 696 by spring 600.More specifically, according to Figure 100, spring 600 can be positioned or be compressed between the key gear 606 and frame of surgical instruments for example, makes in case the balladeur train 694 that resets is thrown off from the end 698a of return pin 698, and the expansible so that key gear 606 of spring 600 slides towards trigger gear 696 so.And at least a embodiment, return pin 698 can be installed on the key gear 606 or be integrally formed with key gear 606, thereby return pin 698 can be slided towards trigger gear 696 with key gear 606.In at least a embodiment, with reference to Figure 97, return pin 698 can comprise flange 698b, but key gear 606 butts this flange 698b and push return pin 698 to trigger gear 696.

In various embodiments, for above-mentioned reasons, when the balladeur train 695 that resets is rotated down when entering its actuated position shown in Figure 100, ratchet

face

606c and 696c can be positioned to abut against each other by spring 600.In at least a embodiment, with reference to Figure 97, each can comprise

ratchet face

606c and 696c from its extended tooth, and this tooth energy co-operating is with transferring rotational motion between ratchet face 606c and 696c.In use, actuating next time along with firing trigger 660, firing trigger 660 can be along the clockwise direction rotation trigger gear 696 and the key gear 606 of arrow A indication, and with reference to Figure 99, wherein key gear 606 can be along the direction rotary pinion 601 of arrow E indication.Because for example the operability between the section of rack 605 of pinion 601 and percussion part 666 engages, pinion 601 can be with respect to the percussion of end effector retraction part 666, cutting member and/or staple drivers, to above similar.In at least a embodiment, gear 601,606 and 696 and gear parts 658 can be constructed such that once actuating that percussion part 666 can be by trigger 660 and retraction fully.

Subsequently, firing trigger 660 can be released or be returned to its unactuated position.In at least a such embodiment, ratchet

face

606c and 696c can comprise taper seat, and when trigger was returned to its unactuated position, this taper seat can allow

ratchet face

606c and 696c relative to each other to rotate.Under these circumstances, trigger gear 696 can just rotate along the side shown in the arrow A in the opposite direction along rotation counterclockwise.In at least a embodiment, ratchet

face

606c and 696c can relative to each other rotate, even still like this when ratchet face contacts with each other.Subsequently, the balladeur train 694 that resets can be rotated up, and makes it can touch the end 698a of return pin 698 and makes return pin 698 and key gear 606 slips off from trigger gear 696.Therefore, under these circumstances, ratchet face 606c can throw off from ratchet face 696c, thereby they operationally engage no longer each other.In at least a such embodiment, the balladeur train 694 that resets can be applied to power on the end 698a of return pin 698, and wherein, power can be delivered to key gear 606 via flange 698b, so that key gear 606 moves out from trigger gear 696.

As mentioned above, can comprise the percussion driving device according to surgical instruments of the present invention, this percussion driving device comprises ratchet, and this ratchet can be used for advancing the percussion part with respect to end effector.In various embodiments, as mentioned above, ratchet 170 can upwards pivot to engage the groove 467 of for example pulling the trigger in the part 466 and distad to advance percussion part 466.Subsequently, with reference to Figure 101 and 102, ratchet 170 can be pivoted downwards and be bounced back to reorientate ratchet 170 with respect to percussion part 466 proximads, makes ratchet 170 upwards to be pivoted once more and pulls the trigger part 466 to engage another groove 467 and further to advance.But under different situations, when ratchet 170 was upwards pivoted shown in Figure 103, ratchet 170 may not engagement groove 467.When power or energy that is for example transmitted by the various mechanisms by surgical instruments when firing trigger 466 and/or the various in-house power that is stored in surgical instruments or energy are by mistake mobile, may produce this situation.If ratchet can not engage the percussion part again, surgical instruments may become and can not work so, and therefore, surgical instruments may must manually reset.In order to improve this condition, can comprise anti-reverse mechanism according to the surgical instruments of various embodiments of the present invention, this anti-reverse mechanism can keep or keep substantially the percussion part in place.

In various embodiments, with reference to Figure 104, anti-reverse mechanism for example can be used at least a portion of percussion driving device and/or backward driving device is held in place, and ratchet 170 is bounced back with respect to percussion part 466 simultaneously.In at least a embodiment, anti-reverse mechanism can comprise index mechanism or index plate 711, as mentioned above, when percussion part 466 is pushed into, this index mechanism or index plate can be used for allowing return pin 798 along the counter clockwise direction rotation by the arrow B indication, but suppress or suppress at least basically return pin 798 along clockwise direction (promptly with the side of arrow B in the opposite direction) rotation.In fact, when return pin 798 rotatably engages with key gear 406 and key gear 406 when operationally engaging with percussion part 466 by idler gear 403 and pinion 401, index mechanism 711 also can prevent or prevent from least basically to pull the trigger part 466 proximads retraction.And as described in greater detail, index mechanism 711 equally also can suppress to pull the trigger part 466 and by mistake distad be advanced.

In order to prevent that as mentioned above return pin 798 from by mistake rotating, index mechanism 711 can comprise one or more grooves and/or hole, is used for return pin 798 is held in place.In various embodiments, with reference to Figure 104,107 and 111, index mechanism 711 can comprise the sheet spring, and this sheet spring comprises pinching end 711a, this pinching end 711a can be maintained in the groove 784a of frame 784, makes that index mechanism 711 can be with respect to the fulcrum 784b deflection and/or the rotation of frame 784.In at least a embodiment, with reference to Figure 105 and 106, return pin 798 can comprise that wherein key 799 can be used for engaging index mechanism 711 from return pin 798 extended keys 799.More specifically, at least a such embodiment, index mechanism 711 can comprise a plurality of grooves or hole 713a-b, with reference to Figure 107 and 108, each groove or hole can be used for holding from key 799 extended lobe 799a, thus return pin 798 are held in place, as described in greater detail.

In use, the end effector of surgical instruments for example can be closed on patient's the soft tissue, and subsequently as mentioned above, the percussion part of surgical instruments can be advanced by the percussion driving device.Before advancing the percussion part, shown in Figure 110 a, the lobe 799a of return pin 798 can be accommodated in first hole 713 of index mechanism 711.In various embodiments, with reference to Figure 106 and 109, key 799 also can comprise inclined plane or inclined-plane 799b, this inclined plane or inclined-plane can make, when return pin 798 when activating for the first time of trigger 460 by percussion part 466, pinion 401, idler gear 403 and key gear 406 along the direction rotation of arrow B indication, but the edge of inclined-plane 799b contact hole 713a and index mechanism 711 is deflected down and/or rotate is shown in Figure 110 b.Notice that may need a certain size power to make index mechanism 711 deflections and/or rotation, like this, return pin 798 is reduced by the probability that by mistake shifts out from groove 713.More specifically, for example do not applying under the situation of big pulling force to percussion part 766, the groove in the index mechanism 711 can have key 799 with return pin 798 and remain on ability in this groove, and correspondingly, percussion part 466 can be reduced by propulsive probability by mistake.

In the actuating end first time of firing trigger 460, key 799 can be positioned in the second hole 713b of index mechanism 711, shown in Figure 110 c.In such position, because the existence of stop surface 799c can prevent that key 799 is moved among the 713a of hole backward.More specifically, with reference to Figure 108, key 799 also can comprise stop surface 799c, this stop surface 799c can be configured to for example circumference of butt hole 713b, and because the structure of stop surface 799c, hole 713b and stop surface 799c can be used for preventing that key 799 deflection downwards or rotation index mechanism 711 (Figure 111) and permission return pin 798 groove 715 in from rotating in the opposite direction along the side with arrow B.In at least a such embodiment, the circumference of stop surface 799c and hole 713b can comprise surface parallel to each other.In other various embodiments, bearing surface can comprise to the part of small part inclination, this part is constructed such that key 799 can further be drawn among the 713b of hole, rather than is promoted when proper stop surface 799c was forced to be pressed on the circumference of hole 713b from the 713b of hole.Therefore, in either case, for example when ratchet 170 was bounced back with respect to percussion part 466, ratchet 170 can be reduced by the probability that does not overlap with respect to the grooves 467 in the percussion part 466.

When activating for the second time of firing trigger 460, percussion part 466 is swing pinion 401,403 and 406 once more, makes the direction rotation of return pin 798 along the arrow B indication.Therefore, in various embodiments, inclined-plane 799b can contact the edge of the second hole 713b and deflect down and/or rotate index mechanism 711, shown in Figure 110 d.When activated end the second time of firing trigger 460, key 799 can be positioned in the 3rd hole 713c of index mechanism 711, shown in Figure 110 e.In such position,, because the existence of stop surface 799c, can prevent from that key 799 from moving downward to enter among the second hole 713b to above similar.And, along with the actuating for the third time of firing trigger 460, percussion part 466 can make the direction rotation of return pin 798 along the arrow B indication once more, therefore, inclined-plane 799b can contact the edge of the 3rd hole 713c and deflect down and/or rotate index mechanism 711, shown in Figure 110 f.When the actuating for the third time of firing trigger 460 finished, key 799 can be positioned in the 4th hole 713d of index mechanism 711, shown in Figure 110 g.In such position,, because the existence of stop surface 799c, can prevent from that key 799 from moving downward to enter among the 3rd hole 713c to above similar.

At this moment, to above similar, operationally engage with the percussion part in order to make backward driving device, return pin 798 and key 799 can be towards 496 rotations of trigger gear, so that key gear 406 operationally engages with trigger gear 496.Therefore, in various embodiments, lobe 799a is movable to be left index mechanism 711 and leaves the 4th hole 713d.After this, along with the reset stroke of firing trigger 460, percussion part 466 can be bounced back and return pin 798 can be rotated along clockwise direction (promptly opposite with arrow B direction).At this moment, percussion part 466 and ratchet 170 will be got back to their original position in pairs, and return pin 798 will be rotated, and make return pin 798 align again with the first hole 713a, and return pin 798 can be thrown off from trigger gear 486, makes key 799 slip into and the engaging of the first hole 713a.Therefore, surgical instruments can be used again subsequently.

In various embodiments, with reference to Figure 112 and 113, anti-reverse mechanism can comprise index element or index plate 811, and this index element or index plate 811 are rotatably installed among the groove 884a of frame 884, makes hinged end 811a rotatably be installed to pin part 884b.In at least a embodiment, similar above-mentioned, index element 811 can be with respect to pin part 884b rotation and/or deflection.In various embodiments, anti-reverse mechanism also comprises at least one spring element or back-moving spring 811b in groove 815, and this spring element or back-moving spring 811b can be used for index element 811 bias voltages are entered in the position shown in Figure 112 and 113.Equally, back-moving spring 811b can further be used to after the index element is as mentioned above by key 799 deflections the index element be returned in such position.In various embodiments, described at least one back-moving spring for example can be positioned in the middle of the sidewall of index element 811 and groove 815.In various alternate embodiments, with reference to Figure 114, anti-reverse mechanism can comprise index element 911, in this index element 911 and the top similar groove 984a that is installed in frame 984.In at least a such embodiment, frame 984 also can comprise mounting boss 984b, and this mounting boss 984b can be configured to be force-fitted in the hole 911a of index element 911, makes that index element 911 can be by with respect to frame 984 deflections and/or rotation.

In various alternate embodiments, can comprise ratchet mechanism according to the anti-reverse mechanism of at least a embodiment of the present invention, be used to prevent or the motion of not expecting of restriction percussion part and/or gear train at least.In various embodiments, with reference to Figure 115 to 118, ratchet mechanism can comprise ratchet, the gear (for example indicator gear wheel 492 and spur gear 416) that this ratchet is configured to allow gear train is pulled the trigger part (for example pulling the trigger part 466) at them and is rotated along first direction when driving, but when the ratchet (for example ratchet 170) of percussion driving device bounces back with respect to the percussion part, prevent or at least limiting gear rotate in the opposite direction.In at least a embodiment, with reference to Figure 116, ratchet mechanism can comprise sheet spring or ratchet 1011, and it can limit the rotation of spur gear 416, as described in more detail below.

Then above, when percussion part 466 is for example advanced by firing trigger 460, because the operability of pinion 401, idler gear 403, key gear 406 and spur gear 416 engages as mentioned above, percussion part 466 can make the direction rotation (Figure 116) of spur gear 416 along arrow D indication.In at least a embodiment, when spur gear 416 when the D direction is rotated, the gear teeth 416a of gear 416 can be used to contact and deflectable pawl 1011, makes gear teeth 416a to pass through from ratchet 1011.Yet, if percussion part 466 when by mistake being bounced back and/or spur gear 416 by along the direction rotation of arrow H indication the time, ratchet 1011 can be constructed such that at least a portion of ratchet 1011 can be positioned in the middle of two adjacent gear teeth 416a, and prevents or limit spur gear 416 at least and rotate along the H direction.In various embodiments, with reference to Figure 116, at least a portion of ratchet 1011 can wedge between the gear teeth 416a or " nipping " gear 416 in, make gear 416 can not rotate along the H direction basically, at least the backward driving device up to surgical instruments operationally engages with the percussion part, more specifically describes as following.

In various embodiments, surgical instruments can comprise the balladeur train that resets, and the balladeur train that resets can move between unactuated position shown in Figure 115 and 116 and the actuated position shown in Figure 117 and 118, so that surgical instruments enters its reverse or retraction mode of operation.Balladeur train 494 is similar to resetting, and at least a embodiment, the balladeur train 1094 that resets can be around pin 1094a with respect to frame 484 rotations.In various embodiments, with reference to Figure 118, ratchet 1011 can be installed on the balladeur train 1094 that resets, and makes to be rotated down when entering its actuated position when balladeur train 1094 quilts that reset, and ratchet 1011 movable disengagements engage with the operability of spur gear 416.Under these circumstances, when surgical instruments entered its reverse mode, spur gear 416 can be allowed to the direction rotation along arrow H indication.When spur gear 416 is allowed to when the H direction is rotated, gear train can be allowed to not be subjected to the interference of anti-reverse mechanism or not have the rotation of substantial interference ground at least, makes that the percussion part can be bounced back as described above.By after the retraction fully, the balladeur train 1094 that resets can be rotated up to be entered in its unactuated position and ratchet 1011 can operationally engage again with spur gear 416 at the percussion part.

In all cases, can prevent that the backward driving device of surgical instruments from suitably engaging with the percussion part of surgical instruments.In at least a embodiment, the balladeur train that resets of backward driving device (balladeur

train

494 and 1094 for example resets) for example possibly can't suitably contact and start percussion pin 172 and/or return pin 498.More specifically, the balladeur train that resets possibly can't suitably move percussion pin 172 and/or return pin 498, makes key gear 406 operationally engage with trigger 496, and prevents that ratchet 170 from operationally engaging with percussion part 466.In various embodiments, as mentioned above, the balladeur train that resets can comprise button part, and this button part can be used for the balladeur train that resets is rotated down when being applied in downward power.Yet in all cases, this power may not have enough big influence to make the sledge movements that resets, especially when reset balladeur train and/or one of them pin 172 and 498 for example are stuck on the position.

In various embodiments of the present invention, surgical instruments can comprise switch, and this switch can be used for manually making the backward driving device of surgical instruments to engage with the percussion part better.In at least a embodiment, with reference to Figure 119, switch can comprise first and second portion, and wherein first 1194 for example can be connected movingly with respect to frame 1184, and second portion 1118 also can be connected movingly with respect to frame 1184.In various embodiments, the first 1194 of switch can be pivotably connected to frame 1184, when the cam that feasible first 1194 when switch for example is similar to cam 402 pivots downwards, first 1194 can be used for from return pin 498 disengagements and allows the key part 499 of return pin 498 to engage with trigger gear 496, as mentioned above.In various embodiments, though not shown in Figure 119, but the balladeur train 1194 that resets can comprise from the balladeur train 1194 extended arm 1194d that reset, the movable end 498a that leaves return pin 498 of this arm 1194d, feasible for example spring can be biased into return pin 498 with the operability of trigger gear 496 and engage.

Except above-mentioned situation, the first 1194 of switch can be used to contact percussion pin 172 and the key 222 of percussion pin 172 is operationally engaged with ratchet 170 when pivoting downwards, makes ratchet 170 not pivot downwards, equally as previously discussed.In fact, at least a such embodiment, the first 1194 of switch can comprise cam, and this cam can activated so that pull the trigger driving device and operationally throw off or make backward driving device and pull the trigger part and operationally engage from the percussion part.In all cases, between its promotion pattern and reverse operation pattern, switch, may have only the operation of first 1194 to need in order to make surgical instruments.Yet, can not suitably locate or during the first 1194 of actuation switch at the cam (for example cam 402) of backward driving device, the second portion 1118 of switch just can be used for the first 1194 of actuation switch, as described in more detail below.

Then above, the second portion 1118 of switch can activated, so that the first of actuation switch 1194.In various embodiments, with reference to Figure 119, the second portion 1118 of switch can comprise handle 1118b, and this handle 1118b for example can be configured to be gripped by the surgeon, make the surgeon on handle 1118b, to apply power and the second portion 1118 that makes switch around pivot 1118a rotation.In at least a embodiment, the first 1194 that the second portion 1118 of switch can be configured for the first 1194 of contact switch and make switch moves between its unactuated position shown in Figure 119 and its aforesaid actuated position.In various embodiments, in fact, the second portion 1118 of switch can comprise cam, but the first 1194 of the first 1194 of this cam contact switch and downward driving switch makes first's 1194 contacts of switch pull the trigger pin 172 and return pins 498.In at least a such embodiment, with reference to Figure 119, the second portion 1118 of switch can comprise contact surface 1118c, and this contact surface 1118c can be configured to contact with the contact surface 1194c of the first 1194 of switch.In various embodiments, contact surface 1118c can be positioned directly at above the contact surface 1194c, makes contact surface 1118c and 1194c to be aligned, and first's 1194 discontiguous probabilities of the second portion 1118 of switch and switch can be reduced.

Then above, in various embodiments, contact surface 1118c and 1194c can be positioned and be arranged such that the power F2 that is applied on the handle 1118b has enough mechanical advantages so that the first 1194 of switch is moved in its actuated position.In at least a embodiment, the main body of the second portion 1118 that handle power F2 can be by switch is delivered to the first 1194 of switch as the power of transmission F3 via contact surface 1118c and 1194c.Note, in various embodiments, transmit power F3 and can be different from handle power F2.Further, with reference to Figure 119, for the first 1194 that makes switch initially moves, with handle power F ₂With the power of transmission F ₃Relevant moment of torsion can be basic identical, i.e. distance D a and power F ₂Product can be substantially equal to distance D b and power F ₃Product, wherein, distance D a can represent pivot 1118a and power F ₂The application point between distance, and distance D b can represent pivot 1118a and power F ₃Transmission point between distance.Therefore, as distance D a during less than distance D b, shown in Figure 119, power F ₂Can be greater than power F ₃Correspondingly, for the F that exerts all one's strength ₂Substantially equal power F ₃, as power F ₂When being applied in handle 1118b and going up, handle 1118b must be positioned in surperficial 1118c and above the 1194c basically.

Then above, in various embodiments, transmit power F ₃The main body of first 1194 that can be by switch is as locomotivity F ₁Be delivered to percussion pin 172.To above similar, locomotivity F ₁Can be different from transmission power F ₃Further,, initially move towards ratchet 170 in order to make percussion pin 172 referring again to Figure 119, as mentioned above, with locomotivity F ₁With the power of transmission F ₃Relevant moment of torsion can be basic identical, i.e. distance D c and power F ₁Product can be substantially equal to distance D d and power F ₃Product, wherein, distance D c can represent pivot 1194a and power F ₁The application point between distance, and distance D d can represent pivot 1194a and power F ₃Transmission point between distance.Therefore, as distance D c during less than distance D d, shown in Figure 119, power F ₁Can be greater than power F ₃In fact, according to the selection of the Da that adjusts the distance, Db, Dc and Dd, less transmission power F ₃Can be used to apply bigger locomotivity F to percussion pin 172 ₁Therefore, in various embodiments, the power F that is for example provided by the surgeon can be provided for the first of switch and second portion ₂Can be enough to manually the first 1194 of switch is positioned in its actuated position by the second portion of switch, thus with surgical instruments from the promotion mode control to the reverse operation pattern, as above further as described in.In order to make surgical instruments get back to its promotion pattern, the first 1194 of switch for example can be rotated up, and makes the second portion 1118 of switch also can rotate up, and switch module is resetted.

In the exemplary embodiment of another kind, with reference to Figure 120 to 122, surgical instruments can comprise switch module, this switch module comprises first 1294, comprise second portion 1218 in addition, this first 1294 can be pivotally mounted on the frame 1284 around pin 1294a, and this second portion 1218 can be pivotally mounted on the frame 1284 around pivot 1218a.Though the first of switch and second portion can be pivotally mounted on the frame 1284, switch sections also can be pivotally mounted on any other suitable part of surgical instruments.In various embodiments, to above similar, the first 1294 of switch can make surgical instruments switch between promotion pattern and reverse operation pattern with being operated.In at least a embodiment, the first 1294 of switch can rotate between unactuated position shown in Figure 120 and the actuated position shown in Figure 121.To above similar, the second portion 1218 of switch can move downward by applying power to handle 1218b, enters its actuated position so that first 1294 is moved downward.

In various embodiments, for example the firing trigger of the second portion 1218 of switch and surgical instruments (for example firing trigger 460) can be constructed such that and can prevent or prevent at least basically that second portion 1218 is rotated down, unless firing trigger is in its unactuated position.Before being operated, require firing trigger in its unactuated position, can suitably be alignd when the first 1294 of the switch of reversing-gear is rotated down in first 1294 with the percussion pin (for example the percussion pin 172) of percussion driving device at the permission switch.In various embodiments, surgical instruments can be constructed such that percussion pin is positioned in the preset range, thereby the percussion pin can be touched and slip into and the engaging of the ratchet of pulling the trigger driving device (for example ratchet 170) by the first 1294 of switch.

In various embodiments, with reference to Figure 50, surgical instruments 100 can comprise end effector 106 and slender axles assembly 104, can be connected pivotly by actuated articulation joints 114 with slender axles assembly 104 at this end effector 106.As mentioned above, actuated articulation joints 114 can allow end effector 106 to move with respect to shaft assembly 104 or carry out joint motions around axis 116.In various embodiments, the surgeon can make end effector 106 carry out joint motions to easier of the intravital operative site of patient.More specifically, the surgeon can insert end effector 106 and shaft assembly 104 to pass and be inserted into the intravital sleeve pipe of patient at least in part, in case and end effector 106 has passed sleeve pipe, end effector 106 just can be pivoted or be carried out joint motions, so that for example end effector 106 is positioned at the operative site for the treatment of stitching and/or cutting with respect to soft tissue.In case end effector 106 is positioned, the relativeness between end effector 106 and the shaft assembly 104 just can fix or lock by locking mechanism, as described in greater detail.

In at least a embodiment, with reference to Figure 51 and 52, actuated articulation joints 114 can comprise end effector locking piece 300 and pivot 302.In various embodiments, with reference to Figure 53 to 56, end effector locking piece 300 can comprise connector part 320, this connector part 320 can be fixed to locking piece 300 on the end effector 106, and with reference to Figure 52, shaft assembly 104 can comprise pivot connector 342, can comprise from its extended pivot 302 at this pivot connector 342.In various embodiments, locking piece 300 can comprise hole 301, and this hole 301 can have appropriate size and structure, to hold at least a portion of pivot 302 therein.In at least a embodiment, pivot 302 and hole 301 can be constructed such that end effector 106 can freely rotate around axis 116.In various other embodiments, pivot 302 and hole 301 can be constructed such that the friction between pivot 302 and the hole 301 can resist the relative motion between (though allow) end effector 106 and the shaft assembly 104.Though do not illustrate, actuated articulation joints 114 can comprise that more than an axis or pivot end effector 106 can be around these axis or pivot rotation.

In various embodiments, the surgeon can be for example makes end effector 106 carry out joint motions with respect to shaft assembly 104 by end effector 106 being shifted onto near the chamber sidewall the operative site and being applied power to shaft assembly 104, thereby end effector 106 is pivoted around axis 116.After this, if the surgeon wishes that end effector 106 recenters, be about to end effector 106 and shaft assembly 104 along a line orientation, the surgeon can for example abut in end effector 106 once more on the sidewall of chamber and to shaft assembly 104 and apply power so, as mentioned above.In various embodiments, with reference to Figure 51 and 52, mechanism during surgical instruments 100 can comprise surely, during this is fixed mechanism can be automatically with respect to shaft assembly 104 make end effector 106 fixed again in or fixed again at least basically in.In various embodiments, face 316 during end effector locking piece 300 can comprise surely, and slender axles assembly 104 can comprise and decide axis 328 and bias piece 330 that at this, bias piece 330 can be used for being biased on the middle surely face 316 decide axis 328.In at least a such embodiment, face 316 can be set on the relative substantially side of axis 116 in fixed, make that deciding axis 328 can be applied to moment of torsion or the moment that equates substantially on the locking piece 300, and under the situation of not adding tripping force, end effector 106 is remained on substantially by in the position in fixed.When end effector 106 carried out joint motions by such tripping force, as mentioned above, locking piece 300 can be used for proximad and moves one of them and decide axis 328 and extruding be decided the bias piece 330 that axis 328 operationally engages with this.More specifically, bias piece 330 can be positioned in guiding piece 331 and from deciding between axis 328 extended at least one lobe 329, make that bias piece 330 is compressed between guiding piece 331 and the lobe 329 when lobe 329 is passed through axle 328 proximal motion.After removing tripping force, the bias piece 330 that is extruded is expansible, and make locking piece 300 by decide axis 328 rotate to its fixed in the balanced basically position of moment of torsion that applies by bias piece 330, position or.Though bias piece 330 is shown as helical spring, bias piece 330 can comprise any suitable elastic component.

In various embodiments, locking mechanism can be used to end effector 106 is remained in the position after its joint motions, even still like this after tripping force is removed.In at least a embodiment, with reference to Figure 53 to 56, end effector locking piece 300 can comprise first 308 first having, have second 304 second portion, tooth 312 and be limited to groove 314 between the tooth 312, wherein, more specifically describe as following, tooth 312 and groove 314 can be used for operationally engaging with the shaft assembly locking piece, so that the relativeness between fixing or locking end effector 106 and the shaft assembly 104.In various embodiments, first 308 and second 304 centres that tooth 312 and groove 314 can be positioned in.In at least a embodiment, first 308 can be from the hole 301 extends to 310, the second 304 of first circumferences and can be from the hole 301 extends to second circumference 306.In various embodiments, first circumference 310 can limit first plane and second circumference 306 can limit second plane, and wherein first tooth 312 and groove 314 can be arranged in the middle of first plane and second plane.Be different from the embodiment of second circumference 306 at first circumference 310, tooth 312 can angled ground or extension obliquely between first plane 310 and second plane 306.In various embodiments, tooth 312 can be crossing with first circumference 310 further from the some place of axis 116 at the point that intersects than tooth 312 and second circumference 306.In at least a embodiment, at least one limited first axle 313 of tooth 312, first axle 313 can be between first 308 and second 304 along not extending with first 308 and/or rotation axis 116 vertical directions.In such embodiment, tooth 312 can be for example slides on the soft tissue that is positioned around the actuated articulation joints 114.In other words, because the inclined plane or the inclined-plane of tooth 112, when end effector 106 carried out joint motions, tooth 112 was caught or the probability of clashing into actuated articulation joints 114 surrounding soft tissues can be reduced.In at least a embodiment, tooth 312 cannot extend beyond first circumference 310, thereby for example when at least a portion of first circumference 310 contacts with soft tissue, first circumference 310 and tooth 312 can slide with respect to soft tissue as mentioned above easily.

Then above, compared with former surgical instruments, embodiments of the present invention can provide remarkable advantage.More specifically, with reference to Figure 57, the actuated articulation joints of former end effector can comprise locking piece (for example locking piece 299), and this locking piece comprises the tooth 298 that extends outward from the circumference of locking piece.Therefore, when end effector carries out joint motions with respect to the shaft assembly of surgical instruments, the soft tissue around tooth 298 can be caught or clash into and may cause the damage of soft tissue.In all cases, tissue may be trapped between the adjacent tooth 298, makes when end effector carries out joint motions, and soft tissue can be drawn in the actuated articulation joints and can pass through the parts clamping of the relative motion of joint.In or the embodiment of the present invention that tilts angled at the tooth of locking piece (shown in Figure 58 and the above), soft tissue is can be more easily mobile and reduced soft tissue and may be drawn into probability in the actuated articulation joints on tooth.

As mentioned above, with reference to Figure 59 to 62, surgical instruments 100 also can comprise locking piece 120, and this locking piece 120 can slide and can operationally engage with end effector 106 with respect to end effector 106, to prevent and the relative motion between restrictive axes assembly 104 and the end effector 106 at least.In at least a embodiment, locking piece 120 can be used at least one of soldered tooth 312, makes to prevent that end effector 106 is with respect to locking piece 120 motions.More specifically, locking piece 120 can comprise end sections 338 and shaft portion 120.Wherein end sections 338 can comprise groove 336, this groove 336 can be used for tight fit or even the mode of interference fit hold the tooth 312 of locking piece 300.In various alternate embodiments, the mode that lock part 338 can be similar to above tight fit or interference fit is contained at least one of groove 314.In either case, surgical instruments 100 also can comprise spring 126, and this spring 126 can be used for locking piece 120 is biased into end effector locking piece 300 and engages.In at least a embodiment, if groove 336 does not align with tooth 312, be applied to biasing force on the locking piece 120 by spring 126 so and can cause locking piece 120 contact end effector locking pieces 300 and make end effector locking piece 300, align with groove 336 up to one of them of tooth 312 around axis 116 rotations.In various embodiments, spring 126 can comprise any suitable bias piece, comprises helical spring, sheet spring or other bias voltage material.

In various alternate embodiments, with reference to Figure 63 to 67, surgical instruments can comprise end effector locking piece 350, and this locking piece 350 comprises hole 301, have first 358 first, have second 354 second portion (Figure 67) and connector part 320.End effector locking piece 350 also can comprise tooth 362 and be limited to groove 364 between the tooth 362, wherein at least a embodiment, in the middle of tooth 362 and groove 364 can be positioned in first 358 and second 354.In various embodiments, with reference to Figure 65 to 67, tooth 362 cannot extend beyond first 358 first circumference 357 and/or second 354 second circumference 353.In at least a embodiment, tooth 362 can be located fully or is contained between first 358 and second 354.In at least a alternate embodiments, tooth 362 can partly extend from first circumference 357 and/or second circumference 353.In various embodiments, first circumference 357 and second circumference 353 can limit outer surface between them, and its further groove 364 can be limited in this outer surface.Because above-mentioned feature, end effector locking piece 350 can slide with respect to being positioned in actuated articulation joints soft tissue on every side, and does not strike soft tissue.In various embodiments, tooth 362 can be passivated or sphering with the above-mentioned relative slip of further promotion.In at least a embodiment, with reference to Figure 63 to 65, locking mechanism can be used for making tooth 362 at least one engage with groove 364 and can comprise locking piece 382, this locking piece 382 comprises end sections 388 and shaft portion 390.In at least a embodiment, to above similar, end sections 338 can comprise groove 394, and this groove 394 can be used for engaging at least one of tooth 362 for example.

Device as herein described can be designed to perhaps can be designed to repeatedly use using once the back discarded.But in either case, device can be repaired for reusing after using at least once.Reparation can comprise the dismounting of device, then cleaning or replacing special order and any combination of the step of assembling subsequently.Particularly, device can be disassembled, and the special order or the parts of any number of device can optionally be changed or remove in any combination way.Along with cleaning and/or replacing specific features, device can be re-assemblied at the restoration facilities place or is being about to carry out re-assemblying before the surgical operation by surgery team, so that use subsequently.The reparation that it will be understood by those skilled in the art that device can utilize various package techniques, cleaning/replacing technology and re-assembly technology.Device after the use of these technology and the reparation that obtains is all in the application's scope.

Preferably, invention as herein described will be carried out before surgical operation.At first, obtain new or used apparatus, clean when needed.Then, can carry out disinfection to apparatus.In a kind of disinfection technology, apparatus is placed in the container (for example plastic bag or Arathene bag) of sealing and sealing.Subsequently, container and apparatus can be placed in radiation (for example gamma radiation, x ray or the high energy electron) zone that can penetrate container.Radiation can kill on the apparatus and container in antibacterial.Can be stored in sterile chamber subsequently through the disinfectant apparatus.Sealed container will keep instrument sterile, till sealed container is opened in medical facilities.

Have schematic design though the present invention is described as, the present invention also can further be modified in open scope of the present invention and purport.Therefore this application should cover any modification, occupation mode or the adaptive mode of use of the present invention General Principle of the present invention.In addition, though this application should cover those departs from and can obtain content from the common practise of relevant prior art of the present invention or customary means from the present invention.

Claims

1. surgical instruments comprises:

End effector;

The percussion part;

Trigger;

2. surgical instruments according to claim 1 also comprises frame, and wherein, described first and described second portion can rotatably be mounted with respect to described frame.

3. surgical instruments according to claim 1, wherein, described backward driving device comprises cam, this cam is used to engage described first and described first is moved between the described primary importance and the described second position.

4. surgical instruments according to claim 3, wherein, described cam is used to engage described first when activate the described first time of described firing trigger.

5. surgical instruments according to claim 1, wherein, described first is used to make first key operationally to engage with described percussion driving device, to prevent that described percussion driving device from advancing described percussion part, and when described first was moved in the described second position, described first also was used to make second key operationally to engage with first gear and second gear.

6. surgical instruments according to claim 1, wherein, described second portion comprises that described handle is used to receive the power that is applied on the described handle from the extended handle of described second portion, so that described first moves between the described primary importance and the described second position.

7. surgical instruments according to claim 1, wherein, described second portion can not make described first be moved into the described second position from described primary importance, has been activated from the described first time up to described trigger to discharge.

8. method that is used to handle surgical instruments, this method comprises:

Obtain surgical instruments according to claim 1;

Described surgical instruments is carried out disinfection; With

Described surgical instruments is left in the sterile chamber.

9. surgical instruments comprises:

End effector;

The percussion part;

Trigger;

10. surgical instruments according to claim 9 also comprises frame, and wherein, described first and described second portion can rotatably be mounted with respect to described frame.