CN105640642B - Interior cooled microwave ablation needle with dilating sacculus - Google Patents
Interior cooled microwave ablation needle with dilating sacculus Download PDFInfo
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- CN105640642B CN105640642B CN201610212849.4A CN201610212849A CN105640642B CN 105640642 B CN105640642 B CN 105640642B CN 201610212849 A CN201610212849 A CN 201610212849A CN 105640642 B CN105640642 B CN 105640642B
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- 230000000916 dilatatory effect Effects 0.000 title claims abstract description 17
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- 238000001816 cooling Methods 0.000 claims abstract description 16
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/02—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by cooling, e.g. cryogenic techniques
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/14—Probes or electrodes therefor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00005—Cooling or heating of the probe or tissue immediately surrounding the probe
- A61B2018/00011—Cooling or heating of the probe or tissue immediately surrounding the probe with fluids
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00053—Mechanical features of the instrument of device
- A61B2018/00273—Anchoring means for temporary attachment of a device to tissue
- A61B2018/00279—Anchoring means for temporary attachment of a device to tissue deployable
- A61B2018/00285—Balloons
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/02—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by cooling, e.g. cryogenic techniques
- A61B2018/0293—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by cooling, e.g. cryogenic techniques using an instrument interstitially inserted into the body, e.g. needle
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/14—Probes or electrodes therefor
- A61B2018/1405—Electrodes having a specific shape
- A61B2018/1425—Needle
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- Life Sciences & Earth Sciences (AREA)
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- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
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- Heart & Thoracic Surgery (AREA)
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Abstract
The present invention relates to a kind of interior cooled microwave ablation needle with dilating sacculus, microwave antenna is completely cut off by microwave antenna bushing pipe and internal cooling system, internal cooling system is located by connecting by transfer tube and seal pipe with outer tube, sacculus is located between targeting district and the non-targeted area of microwave melt needle, passes through the connection of transfer tube and J T jet pipes；J T jet pipes are connected with finned tube, and fluid is filled with to sacculus by transfer tube, sacculus is expanded expansion after being filled with cooling fluid, fastening effect is formed with surrounding tissue；When being filled with cryogenic gas, the throttle effect of J T jet pipes makes expandable prosthetic produce small-sized iced areas, produces fixation；Vacuum wall is provided with the inside of outer tube, makes outer tube fluid and the outer biological tissue of outer tube adiabatic, protects normal structure not frost bitten.The present invention can effectively prevent microwave needle to be subjected to displacement in ablation procedure with biological tissue's heat shrinkable deformation, and it is more accurate to ablation areas positioning to have, and normal tissue injury is smaller, the more low advantage of tumour needle track implantation risk.
Description
Technical field
The present invention relates to a kind of microwave ablation medicine equipment, especially a kind of interior cooled microwave ablation needle.
Background technology
Tumour is to endanger one of sixty-four dollar question of human health.In recent years, with science and technology and medical level
Continue to develop, the tumour ablation art of Micro trauma turns into focus.Before Micro trauma tumour ablation is the development of current clinical tumor medical science
Edge, with respect to the traditional tumour treatment method such as surgery excision, radiotherapy, chemotherapy, have smaller to human injury, postoperative complications are less
The advantages that.
Microwave ablation is that one of which has the ablation techniques for representing meaning.Microwave ablation make use of microwave to biological tissue
Fuel factor, pathological tissues is rapidly heated denaturation to reach therapeutic purposes.In recent years, microwave ablation because its have it is minimally invasive, high
The features such as effect, accurate and nonhazardous, it is widely used in fields such as oncotherapies.The difference designed according to microwave antenna,
The difference of microwave output power, the tumour of all size and shape can be effectively melted, the clinic in tumor thermotherapy field should
With also popularizing further.
Microwave melt needle is insertion type operating theater instruments, and radial direction physical dimension is small, and there is anti-stick coating on shank wall surface.Microwave
Launch site is located at needle body front end, and the position in Microwave emission area, physical dimension directly affect radiation field form and the zone of action, and then
Have influence on ablation areas shapes and sizes.Currently used medical microwave frequency is 433.92MHz, 915MHz and 2450MHz.
During microwave ablation, Microwave emission area produces rapidly the order of magnitude up to 102DEG C high temperature, conduction of heat makes entirely
Microwave needle wall is brought rapidly up；Meanwhile the microwave antenna at needle body center also produces ohm heat, microwave needle wall is heated up.
Microwave emission area temperature is too high, causes surrounding biological tissue to carbonize, and influences microwave field and propagates in the tissue, meanwhile,
Tissue thermal resistance after charing is larger, the diabatic process being unfavorable in ablation procedure, influences ablation effect.
According to《People's Republic of China (PRC) pharmaceuticals industry standard microwave heat setting equipment YY 0838-2011》In 5.9 require,
The heat setting device and normal structure contact portion temperature for intervening heat setting equipment are no more than 45 DEG C, non-zone of ablation microwave needle wall surface temperature mistake
Height is not inconsistent with the standard, is easily caused normal structure yet and is killed, is not inconsistent with the product philosophy of " Micro trauma ".At present, in the market
Water or gas are mainly passed through in needle tubing by microwave ablation equipment, the mode control-rod temperature with tube wall forced-convection heat transfer.
Many biological tissues（Such as musculature）With the property that deformation can be shunk in the case of heated.Microwave disappears
During melting, microwave melt needle is easily subjected to displacement with the heat shrinkable deformation of surrounding tissue, and adverse consequences is brought to clinic：
1. ablation areas deviates tumor region, influence surgical effect and normal structure may be injured；2. tumour needle track implantation may be caused,
Tumour is caused to spread.
Microwave ablation operation relies primarily on the imaging tools such as B ultrasound or CT and carries out navigator fix, it is difficult to which Real Time Observation is to microwave
The change of pin position, after microwave ablation starts, if microwave needle is subjected to displacement the changing of the relative positions, it is difficult to timely and effectively observe and handle and be micro-
Ripple pin shift in position.
The content of the invention
The technical problem to be solved in the present invention is：To overcome in microwave ablation surgical procedure, microwave needle with biological tissue by
Thermal contraction deformation and be subjected to displacement, cause ablation areas deviate tumor region, in some instances it may even be possible to cause the technology of tumour needle track implantation
Problem, and a kind of interior cooled microwave ablation needle with dilating sacculus is provided.
The technical solution adopted for the present invention to solve the technical problems is：A kind of interior cooled microwave ablation with dilating sacculus
Pin, including needle body, handle, the needle body are made up of outer tube, bushing pipe, internal cooling system, microwave antenna system, microwave antenna system
It is made up of microwave antenna, radiation head, puncturing head, the internal cooling system flows into pipe, fluid effuser, helical fin by fluid
Pipe, J-T jet pipes, sacculus composition, internal cooling system is coaxial with microwave antenna system, and the microwave antenna passes through microwave antenna bushing pipe
Completely cut off with internal cooling system, internal cooling system is located by connecting by transfer tube and seal pipe with outer tube, and the sacculus is located at microwave
Between the targeting district of ablation needle and non-targeted area, pass through the connection of transfer tube and J-T jet pipes；The J-T jet pipes and finned tube phase
Even, fluid is filled with to sacculus by transfer tube, sacculus is expanded expansion after being filled with cooling fluid, forming fastening with surrounding tissue makees
With；In the case of cryogenic gas is filled with, the throttle effect of J-T jet pipes makes expandable prosthetic produce small-sized iced areas, produces solid
It is set for using；The outer tube is located at non-targeted area, and vacuum wall is provided with the inside of outer tube, makes outer tube fluid and the outer biological tissue of outer tube exhausted
Heat, protect normal structure not frost bitten；Filled with the metal for cohering or inlaying or weld between the targeting district antenna and outer tube
Sealant, for ensuring pipe interior sealing.
The sacculus is by polyamide-based high polymer material or modified polyamide high polymer material or polymer composite system
Into, the sacculus is fixed with transfer tube, outer tube by thermal weld or laser welding, after sacculus is filled with fluid expansion expansion, shape
For cylinder or calabash shaped.
The microwave antenna bushing pipe covered with insulating coating, insulating coating be SiO2 or Al2O3 or Parylen or
Teflon coatings, the microwave antenna bushing pipe, which plays, strengthens the rigid effect of needle body.
The spiral fin coil axially spirals along microwave antenna bushing pipe, coaxial with microwave antenna.
The transfer tube is fixed with outer tube by thermal weld or laser welding；The transfer tube axially has three circular holes, in
Heart circular hole and microwave antenna are coaxial, are combined closely with microwave antenna bushing pipe, and fixed by hot weld or laser welding；One circular hole with
J-T jet pipes are concentric, and J-T jet pipes extend there through, and are connected with sacculus air inlet；Another circular hole is sacculus gas outlet, the fluid of backflow
Spiral fin coil surrounding space is entered by the circular hole.
The seal pipe is fixed with outer tube by thermal weld or laser welding；The seal pipe axially has three circular holes, its
Middle center hole and microwave antenna are coaxial, combine closely with microwave antenna bushing pipe, are fixed by hot weld or laser welding；One circular hole
Middle fluid flows into pipe with one heart through being combined closely with helical fin tube inlet, is fixed by hot weld or laser welding；Another circular hole
Middle fluid effuser is passed through and combined closely with one heart, is fixed by hot weld or laser welding, and spiral fin coil surrounding space returns
Stream fluid is flowed out by the circular hole.
The handle end is provided with snap joint, and the snap joint integrated fluid flows into interface tube, fluid effuser connects
Mouth, microwave antenna interface, changed for realizing with the quick-speed plug of host device circuit.
The handle afterbody mounting interface fixed mount, established angle between the fixed bracket for interfaces and handle for 90 degree or
180 degree, fixed bracket for interfaces inside antenna, pipeline are distributed cabling along handle direction.
The beneficial effects of the present invention are：
Sacculus expands expansion after being filled with cooling fluid, forms fastening effect with surrounding tissue, microwave needle obtains in the tissue
The fixation arrived very much；In the case of being filled with cryogenic gas, the throttle effect of J-T jet pipes makes expandable prosthetic produce small-sized iced areas,
Produce more preferable fixation.
Sacculus is weaker to the impact effect in the region close to ablation areas edge, microwave field, and frost can produce cryoablation
Effect, can guarantee that ablation edge tissues killing rate.
The relatively common interior type of cooling heat exchange area of sacculus more has more than twice to the high-temperature control of microwave needle radiation area
Advantage, charing scope can be reduced.
Brief description of the drawings
Fig. 1 is the fixed bracket for interfaces whole ablation needle structural representation vertical with handle handle；
Fig. 2 is internal cooling system sectional view；
Fig. 3 is connecting tube sectional view；
Fig. 4 is that balloon expandable expands schematic diagram；
Fig. 5 is fixed bracket for interfaces and handle established angle is 90 degree of schematic diagrames；
Fig. 6 is the fixed bracket for interfaces whole ablation needle structural representation parallel with handle handle.
Embodiment
Below in conjunction with the accompanying drawings and specific embodiment, the present invention is expanded on further.
As shown in Figure 1, a kind of interior cooled microwave ablation needle with dilating sacculus, mainly by needle body 20, handle 15 and quick
Joint 16 forms.Needle body 20 is made up of the segmentation of outer tube 14, sacculus 2, radiation head 7 and puncturing head 6.The front end of puncturing head 6 is pointed envelope
Close, be easy to puncture to enter pathological tissues.SiO is all covered with outside puncturing head 6 and outer tube 142Or Al2O3Or Parylen or Teflon
The insulating coatings such as coating.Sacculus 2 is the flexible material such as polyamide-based high polymer material or modified polyamide family macromolecule material, work
Expansion is opened after work, the cooling fluid being filled with is to surrounding tissue and microwave needle wall while plays cooling effect.Non-targeted area
The inner side of outer tube 14 has vacuum wall 12 to make tube fluid adiabatic with Guan Wai biological tissues, protects normal structure not frost bitten.Targeting district
Ensure pipe interior sealing filled with the metal sealing layer 8 for cohering or inlaying or weld between antenna 1 and outer tube 14.
Fig. 2 shows a kind of principal character of the interior cooled microwave ablation needle with dilating sacculus.The microwave antenna interface
18 input electrical signals, conducted through microwave antenna 1 to radiation head 7 to pathological tissues and launch microwave signal.Cooling fluid is from fluid stream
Enter interface tube 17 and enter fluid inflow pipe 4, sacculus 2 is entered by the J-T jet pipes 10 of the end of spiral fin coil 3.Cooling fluid passes through
Crossing the surrounding space of spiral fin coil 3, fully heat exchange is back to fluid effuser 5 therewith, is discharged through fluid effuser interface 19.
Fig. 3, Fig. 4 show a kind of Partial Feature of the interior cooled microwave ablation needle with dilating sacculus shown in the present invention.Institute
Stating connecting tube 11 axially has three circular holes, and center hole and microwave antenna 1 are coaxial, combine closely, pass through with microwave antenna bushing pipe 9
Hot weld or laser welding are fixed；One circular hole and J-T jet pipes 10 are concentric, and J-T jet pipes 10 extend there through, and are connected with the air inlet of sacculus 2；
Another circular hole is the gas outlet of sacculus 2, and the fluid of backflow enters the surrounding space of spiral fin coil 3 by the circular hole.The seal pipe
13 are fixed with outer tube 14 by thermal weld or laser welding.Seal pipe 13 axially has three circular holes, wherein center hole and microwave
Antenna 1 is coaxial, combines closely with microwave antenna bushing pipe 9, is fixed by hot weld or laser welding；Fluid flows into pipe 4 in one circular hole
Pass through and spiral fin coil with one heart（3）Entrance is combined closely, and is fixed by hot weld or laser welding；Fluid effuser in one circular hole
5 pass through and combine closely with one heart, are fixed by hot weld or laser welding, the reflux fluid of the surrounding space of spiral fin coil 3 passes through
The circular hole flows out.
Fig. 5 shows an a kind of feature of the interior cooled microwave ablation needle with dilating sacculus shown in the present invention.It is described micro-
After ripple ablation pin puncture insertion tissue, when cooling fluid is water, expansion is expanded after the water-filling of sacculus 2, is formed with surrounding tissue
Fastening effect, the fixation that microwave needle is arrived very much in the tissue, the changing of the relative positions is not subjected to displacement with surrounding tissue heat shrinkable, pin
Road Planting risk effectively reduces；Water body is exchanged heat with surrounding tissue in the sacculus 2, and ablation areas is controlled under sacculus 2, no
Injure normal structure；The material of outer tube 14 is mainly the good conductor stainless steel of heat, and amount of heat caused by its radiation area passes through
Outer tube 14 is delivered at sacculus 2, and radiation area high temperature is controlled, and is suppressed tissue charring.Ablation stops supplying water after terminating, sacculus 2
Contraction is inside cooling water flow out of, treats that needle body profile is recovered, you can smoothly pull out pin.When cooling fluid is cryogenic gas, cooling gas warp
Cross spiral fin coil 3 fully to throttle, being filled with sacculus 2 by J-T jet pipes 10 is allowed to expand deformation, is formed tightly with surrounding tissue
Gu effect, the fixation that microwave needle is arrived very much in the tissue, and not as surrounding tissue heat shrinkable is subjected to displacement the changing of the relative positions, needle track
Planting risk effectively reduces；The surrounding of sacculus 2 forms small-sized frost zone, produces cryoablation effect at ablation areas edge, both by force
The fixation of sacculus 2 is changed, needle track implantation risk is further reduced also by freezing fragmentation effect；The material master of outer tube 14
Will be heat good conductor stainless steel, amount of heat is delivered at sacculus 2 by outer tube 14 caused by radiation area, radiation area high temperature by
To control, suppress tissue charring.Ablation stops cryogenic gas supply after terminating, be passed through negative throttle effect gas rewarming, ice hockey disappears
Stop supply after melting, sacculus 2, which shrinks, to restore, and treats that needle body profile is recovered, you can smoothly pull out pin.
Embodiment one
As shown in figure 5, the established angle between fixed bracket for interfaces and handle 15 is 90 degree, i.e., both are vertically fixed installation
Form, fixed bracket for interfaces are arranged on the afterbody of handle 15, and inside antenna, pipeline are distributed cabling along handle direction.
Embodiment two
Such as Fig. 6, the established angle between fixed bracket for interfaces and handle 15 is 180 degree, i.e., both are the installation shape of parallel fixation
Formula, fixed bracket for interfaces are arranged on the afterbody of handle 15, and inside antenna, pipeline are distributed cabling along handle direction.
The invention has the advantages that：
1. cooling medium compatibility is high in, the conventional water cooling of compatibility, does not have species limitation to gas, and hospital often uses nitrogen, and two
The cryogenic gases such as carbonoxide are compatible；
2. non-targeted area's needle tubing wall surface temperature is low.Sacculus forms larger heat exchange area, has obstructed the non-targeted area in high-temperature region
The heat transfer of needle tubing wall, controls ablation range；
3. needle body will not be subjected to displacement the changing of the relative positions in ablation procedure with biological tissue's heat shrinkable deformation, improve and disappear
The degree of accuracy in tabetisol domain, avoid normal structure and accidentally injured, reduce the risk of needle track implantation.
Claims (8)
1. a kind of interior cooled microwave ablation needle with dilating sacculus, including needle body（20）, handle（15）, the needle body（20）By outer
Pipe（14）, bushing pipe（9）, internal cooling system, microwave antenna system composition, microwave antenna system is by microwave antenna（1）, radiation head
（7）, puncturing head（6）Composition, it is characterised in that：The internal cooling system is flowed into by fluid and managed（4）, fluid effuser（5）, spiral
Finned tube（3）, J-T jet pipes（10）, sacculus（2）Composition, internal cooling system is coaxial with microwave antenna system, the microwave antenna
（1）Pass through microwave antenna bushing pipe（9）Completely cut off with internal cooling system, internal cooling system passes through transfer tube（11）And seal pipe（13）With
Outer tube（14）It is located by connecting, the sacculus（2）Between the targeting district of microwave melt needle and non-targeted area, pass through transfer tube
（11）With J-T jet pipes（10）Connection；The J-T jet pipes（10）With finned tube（3）It is connected, passes through transfer tube（11）To sacculus（2）
Fluid is filled with, makes sacculus（2）Expansion is expanded after being filled with cooling fluid, fastening effect is formed with surrounding tissue；When being filled with low temperature gas
In the case of body, J-T jet pipes（10）Throttle effect make sacculus（2）Surrounding produces small-sized iced areas, produces fixation；Institute
State outer tube（14）Positioned at non-targeted area, outer tube（14）Inner side is provided with vacuum wall（12）, make outer tube fluid and biological group outside outer tube
Thermal insulation is knitted, protects normal structure not frost bitten；The microwave antenna（1）With outer tube（14）Between filled with cohering or inlay or weld
The metal sealing layer connect（8）, for ensuring pipe interior sealing.
2. the interior cooled microwave ablation needle according to claim 1 with dilating sacculus, it is characterised in that：The sacculus（2）
It is made up of polyamide-based high polymer material or modified polyamide high polymer material or polymer composite, the sacculus（2）With
Transfer tube（11）, outer tube（14）Fixed by thermal weld or laser welding, sacculus（2）After being filled with fluid expansion expansion, it is shaped as
Cylinder or calabash shaped.
3. the interior cooled microwave ablation needle according to claim 1 with dilating sacculus, it is characterised in that：The microwave antenna
Bushing pipe（9）Covered with insulating coating, insulating coating is SiO2 or Al2O3 or Parylen or teflon coatings, described micro-
Wave antenna bushing pipe（9）Play and strengthen the rigid effect of needle body.
4. the interior cooled microwave ablation needle according to claim 1 with dilating sacculus, it is characterised in that：The helical fin
Pipe（3）Along microwave antenna bushing pipe（9）Axially spiral, with microwave antenna（1）Coaxially.
5. the interior cooled microwave ablation needle according to claim 1 with dilating sacculus, it is characterised in that：The transfer tube
（11）With outer tube（14）Fixed by thermal weld or laser welding；The transfer tube（11）Axially there are three circular holes, center hole
With microwave antenna（1）Coaxially, with microwave antenna bushing pipe（9）Combine closely, and fixed by hot weld or laser welding；One circular hole with
J-T jet pipes（10）With one heart, J-T jet pipes（10）Extend there through, with sacculus（2）Air inlet is connected；Another circular hole is sacculus（2）Outlet
Mouthful, the fluid of backflow enters spiral fin coil by the circular hole（3）Surrounding space.
6. the interior cooled microwave ablation needle according to claim 1 with dilating sacculus, it is characterised in that：The seal pipe
（13）With outer tube（14）Fixed by thermal weld or laser welding；The seal pipe（13）Axially there are three circular holes, wherein center
Circular hole and microwave antenna（1）Coaxially, with microwave antenna bushing pipe（9）Combine closely, fixed by hot weld or laser welding；One circular hole
Middle fluid flows into pipe（4）Pass through and spiral fin coil with one heart（3）Entrance is combined closely, and is fixed by hot weld or laser welding；Separately
Fluid effuser in one circular hole（5）Pass through and combined closely with the circular hole with one heart, fixed by hot weld or laser welding, spiral wing
Piece pipe（3）The reflux fluid of surrounding space is flowed out by the circular hole.
7. the interior cooled microwave ablation needle according to claim 1 with dilating sacculus, it is characterised in that：The handle（15）
End is provided with snap joint（16）, the snap joint（16）Integrated fluid flows into interface tube（17）, fluid effuser interface
（19）, microwave antenna interface（18）, changed for realizing with the quick-speed plug of host device circuit.
8. the interior cooled microwave ablation needle according to claim 1 with dilating sacculus, it is characterised in that：The handle (15)
Afterbody mounting interface fixed mount, the established angle between the fixed bracket for interfaces and handle (15) is 90 degree or 180 degree, and interface is fixed
Frame inside antenna, pipeline are along handle (15) directional spreding cabling.
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| CN201610212849.4A CN105640642B (en) | 2016-04-07 | 2016-04-07 | Interior cooled microwave ablation needle with dilating sacculus |
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|---|---|---|---|
| CN201610212849.4A CN105640642B (en) | 2016-04-07 | 2016-04-07 | Interior cooled microwave ablation needle with dilating sacculus |
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| CN105640642B true CN105640642B (en) | 2018-01-12 |
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| US11471401B2 (en) | 2014-08-28 | 2022-10-18 | The General Hospital Corporation | Injectable slurries and methods of manufacturing the same |
| EP3988105A1 (en) | 2014-08-28 | 2022-04-27 | The General Hospital Corporation | Injectable slurries and methods of manufacturing and using the same |
| US11504322B2 (en) | 2014-08-28 | 2022-11-22 | The General Hospital Corporation | Injectable slurries and methods of manufacturing the same |
| CN109069288B (en) | 2016-02-26 | 2022-04-19 | 通用医疗公司 | Medical ice slurry production and delivery system and method |
| CN106109009B (en) * | 2016-06-13 | 2018-06-26 | 南京航空航天大学 | A kind of water-cooled microwave ablation needle using 433MHz frequencies |
| JP2019531168A (en) | 2016-08-30 | 2019-10-31 | ザ ジェネラル ホスピタル コーポレイション | Cryotherapy and cryoablation systems and methods for cell tissue treatment |
| CN109464186B (en) | 2017-09-08 | 2023-12-22 | 泽丹医疗股份有限公司 | Device and method for treating lung tumors |
| CN107485443A (en) * | 2017-09-21 | 2017-12-19 | 北京阳光易帮医疗科技有限公司 | One kind freezing compound ablation system of microwave |
| KR102170109B1 (en) * | 2019-01-04 | 2020-10-26 | (주) 타우피엔유메디칼 | Cryoablation catheter for hypertrophic cardiomyopahty |
| CN110175958B (en) * | 2019-04-24 | 2021-05-25 | 艾瑞迈迪科技石家庄有限公司 | Ablation result analysis method and system based on medical image |
| CN110179539B (en) * | 2019-05-30 | 2024-03-01 | 江苏省肿瘤医院 | Sealing and positioning device for ablation needle in ablation operation |
| CN110604613B (en) * | 2019-08-13 | 2025-01-03 | 上海导向医疗系统有限公司 | Curved adjustable cryoablation needle |
| CN110507405B (en) * | 2019-08-13 | 2025-01-03 | 上海导向医疗系统有限公司 | Cryoablation needle with adjustable targeting area |
| CN111805478A (en) * | 2020-08-19 | 2020-10-23 | 许巧珍 | Processing equipment of adjustable cryoablation needle of curved |
| CN117204939B (en) * | 2023-10-30 | 2024-05-24 | 电冷医疗科技(天津)有限公司 | Ablation system combining freezing and electric ablation, ablation needle and control method |
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