JPH07236625A - Pulse oxymeter probe for finger - Google Patents
Pulse oxymeter probe for fingerInfo
- Publication number
- JPH07236625A JPH07236625A JP6028622A JP2862294A JPH07236625A JP H07236625 A JPH07236625 A JP H07236625A JP 6028622 A JP6028622 A JP 6028622A JP 2862294 A JP2862294 A JP 2862294A JP H07236625 A JPH07236625 A JP H07236625A
- Authority
- JP
- Japan
- Prior art keywords
- finger
- soft
- probe
- pair
- arm
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000523 sample Substances 0.000 title claims abstract description 16
- 238000003780 insertion Methods 0.000 claims description 11
- 230000037431 insertion Effects 0.000 claims description 11
- 238000005452 bending Methods 0.000 claims description 8
- 238000005259 measurement Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 229920003002 synthetic resin Polymers 0.000 description 3
- 239000000057 synthetic resin Substances 0.000 description 3
- 229920000877 Melamine resin Polymers 0.000 description 2
- 239000004640 Melamine resin Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 239000004793 Polystyrene Substances 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 229920006311 Urethane elastomer Polymers 0.000 description 2
- 239000002390 adhesive tape Substances 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 239000000806 elastomer Substances 0.000 description 2
- 239000000113 methacrylic resin Substances 0.000 description 2
- 229920000515 polycarbonate Polymers 0.000 description 2
- 239000004417 polycarbonate Substances 0.000 description 2
- 229920005672 polyolefin resin Polymers 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 229920002223 polystyrene Polymers 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229920000181 Ethylene propylene rubber Polymers 0.000 description 1
- 206010021143 Hypoxia Diseases 0.000 description 1
- 239000005062 Polybutadiene Substances 0.000 description 1
- 229910000639 Spring steel Inorganic materials 0.000 description 1
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 229920005549 butyl rubber Polymers 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 229920001973 fluoroelastomer Polymers 0.000 description 1
- 230000007954 hypoxia Effects 0.000 description 1
- 229920003049 isoprene rubber Polymers 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920002857 polybutadiene Polymers 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
Landscapes
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、光を用いて非観血的に
動脈血酸素飽和度（以下、ＳｐＯ2という）を計測す
る、ＳｐＯ2計測装置（以下、パルスオキシメータとい
う）におけるプローブに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a probe in a SpO 2 measuring device (hereinafter referred to as a pulse oximeter) for non-invasively measuring arterial oxygen saturation (hereinafter referred to as SpO 2 ) using light. .
【０００２】[0002]
【従来の技術】ＳｐＯ2のモニタリングは、生命を脅か
す低酸素状態をいち早く察知する目的で、術前術後、救
急現場等で実施されるが、プローブに要求される性能と
して、緊急に使用する場合は直ちに装着ができ、かつ、
被検者の指の大きさに係わらず適度な接触圧を確保でき
ることが必要である。 2. Description of the Related Art Monitoring of SpO 2 is carried out before and after surgery in an emergency field for the purpose of promptly detecting a life-threatening hypoxia state, but it is urgently used as a performance required for a probe. In the case, it can be installed immediately, and
It is necessary to be able to secure an appropriate contact pressure regardless of the size of the subject's finger.
【０００３】また、危険な状態を観測しているため、ノ
イズなどにより、不用意に測定値が変動しない安定性も
要求される。特に、新生児の場合は、体動が絶えないた
め問題になる。また、長時間使用する場合があるため、
装着感がよいことも必要である。Further, since a dangerous state is observed, it is required that the measured value does not change carelessly due to noise or the like. Especially, in the case of a newborn baby, it is a problem because the body movement is constant. Also, since it may be used for a long time,
It is also necessary to have a good fit.
【０００４】これに対し、従来のプローブとして、クリ
ップ方式で被検者の指を挟むタイプと、粘着テープで生
体に貼り着けるタイプ等のものがある。On the other hand, as a conventional probe, there are a type in which a finger of a subject is sandwiched by a clip system and a type in which an adhesive tape can be attached to a living body.
【０００５】[0005]
【発明が解決しようとする課題】図３に示すような、従
来のクリップ方式のタイプでは、装着が容易でかつ被検
者の指２の大きさに係わらず適度な接触圧を確保するこ
とができるが、指が動いた時にヒンジ１の部分の慣性力
が働き、透過光信号が乱れ易くなり、ノイズが発生し易
い。In the conventional clip type as shown in FIG. 3, it is easy to wear and it is possible to secure a proper contact pressure regardless of the size of the finger 2 of the subject. However, when the finger moves, the inertial force of the hinge 1 portion acts, the transmitted light signal is easily disturbed, and noise is easily generated.
【０００６】また、図４に示すような、粘着テープ３で
貼り付けるタイプは、形状が小さく確実に固定されるた
め指２の動き等の体動には影響され難いが、装着時に発
光部と受光部を同一線上に置くための位置合わせや、指
を痛くせず、止血しない程度に力を加減する作業に時間
を費やし煩雑である。Further, the type of sticking with the adhesive tape 3 as shown in FIG. 4 has a small shape and is securely fixed, so that it is hard to be affected by body movements such as the movement of the finger 2, but when it is worn, It is time-consuming and complicated to align the light-receiving parts on the same line and to adjust the force so that the finger does not hurt and blood does not stop.
【０００７】さらに、軟質筒型のタイプでは、ヒンジが
ないため、小型・軽量でクリップ方式に比べて安定性が
よく、かつ、装着が容易で指の大きさに係わず適度な接
触圧を確保できるが、発光素子及び受光素子が指の接触
面に直接固定されているため、接触面の動きが直接光軸
に影響を与え、その結果不安定になるという欠点を有し
ており、改良の余地がある。In addition, since the soft cylinder type does not have a hinge, it is smaller and lighter in weight, has better stability than the clip type, is easy to mount, and has an appropriate contact pressure regardless of the size of the finger. Although it can be secured, since the light emitting element and the light receiving element are directly fixed to the contact surface of the finger, the movement of the contact surface directly affects the optical axis, resulting in instability. There is room for
【０００８】本発明は、上記の問題点に鑑みてなされた
もので、ＳｐＯ2計測装置において、指への装着が容易
でかつ適度な接触圧を確保でき、指の動きにより透過光
信号が乱れ難い指用パルスオキシメータプローブを提供
することを目的とする。The present invention has been made in view of the above problems, and in an SpO 2 measuring device, it can be easily attached to a finger and an appropriate contact pressure can be secured, and the transmitted light signal is disturbed by the movement of the finger. An object is to provide a difficult pulse oximeter probe for fingers.
【０００９】[0009]
【課題を解決するための手段】上記目的を達成するため
の本発明の指用パルスオキシメータプローブは、弾発性
のある湾曲部材と、該湾曲部材の両端に、対向するよう
に連結された１対のアームからなり、該アームは、被測
定部位に接触するように内側に設けられた軟質部材と、
該軟質部材の外側に設けられた比較的硬質の部材とから
なり、該軟質部材は、該アームの先端部が円みを帯びて
形成され、かつ、ほぼ中央部が長軸方向にそって凹部が
形成され、該軟質部材が対向した状態で指が挿入可能な
挿入口が形成され、該比較的硬質の部材は、内部に少な
くとも１対の発光素子及び受光阻止を備えてなることを
特徴とする。A pulse oximeter probe for a finger according to the present invention for achieving the above object is provided with an elastic bending member and opposite ends of the bending member. The arm is composed of a pair of arms, and the arms are provided with a soft member provided inside so as to come into contact with the measurement site,
And a relatively hard member provided on the outer side of the soft member, wherein the soft member is formed such that the distal end portion of the arm is rounded and the substantially central portion is recessed along the major axis direction. Is formed, an insertion opening into which a finger can be inserted is formed in a state where the soft members face each other, and the relatively hard member is provided with at least one pair of light emitting elements and light reception blocking inside. To do.
【００１０】[0010]
【作用】図１において、一対のアーム１０は、被測定部
位に接触するように内側に設けられた軟質部材１２と、
軟質部材１２の外側に設けられた比較的硬質の部材１３
とからなり、軟質部材１２は、アームの先端部が円みを
帯びて形成され、ほぼ中央部が長軸方向に沿って凹部が
形成されいる。In FIG. 1, a pair of arms 10 includes a soft member 12 provided inside so as to come into contact with a measurement site,
A relatively hard member 13 provided outside the soft member 12.
The flexible member 12 is formed by rounding the tip of the arm and forming a recess at the substantially central portion along the major axis direction.
【００１１】軟質部材が対向した状態で指が挿入可能な
挿入部が形成され、比較的硬質の部材は、内部に少なく
とも１対の発光素子及び受光素子を備えている。An insertion portion into which a finger can be inserted is formed in a state where the soft members face each other, and the relatively hard member includes at least a pair of a light emitting element and a light receiving element therein.
【００１２】湾曲部材１１は、弾性体で形成されてい
る。The bending member 11 is made of an elastic material.
【００１３】被検者の指を挿入しない状態では、図１
（ｂ）に示すように、指の挿入部１６が閉じた状態にな
る。図１（ｂ）に示すように、軟質部材１２は、その先
端が円みを帯び、かつ中央部が長軸方向に沿って窪んで
いるため、軟質部材１２が対向した状態で指の挿入部１
６が形成される。In the state in which the finger of the subject is not inserted, as shown in FIG.
As shown in (b), the insertion portion 16 of the finger is in a closed state. As shown in FIG. 1 (b), the soft member 12 has a rounded tip and a central portion that is recessed along the major axis direction. 1
6 is formed.
【００１４】測定する際には、挿入部１６に指を差し込
み、図１（ｃ）のように挿入部１６を押し広げながら指
を挿入する。挿入後は、軟質部材１６の中央部が長軸方
向に沿って窪んでいることにより、指から外れ難くな
る。At the time of measurement, a finger is inserted into the insertion portion 16 and the finger is inserted while the insertion portion 16 is being expanded as shown in FIG. 1 (c). After insertion, since the central portion of the soft member 16 is recessed along the long axis direction, it is difficult to remove it from the finger.
【００１５】上述のような構成ために、装着が容易で被
検者の指の大きさに係わらず、適度な接触圧が確保で
き、ヒンジが不要で、小型・軽量で、接触面の動きが直
接光軸に影響を与えることのない指用パルスオキシメー
タプローブが得られる。Due to the above-mentioned structure, it is easy to wear, an appropriate contact pressure can be secured regardless of the size of the subject's finger, a hinge is not required, the size and weight are small, and the movement of the contact surface is smooth. A pulse oximeter probe for fingers that does not directly affect the optical axis can be obtained.
【００１６】[0016]
【実施例】以下、添付図面を参照しつつ、実施例に係る
指用パルスオキシメータプローブを詳細に説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A finger pulse oximeter probe according to an embodiment will be described in detail below with reference to the accompanying drawings.
【００１７】図２（ａ）は、本発明の実施例の４面図で
ある。湾曲部材１１の両端には、対向して一対のアーム
１０が設けられている。このアームは、図示するように
軟質部材１２と硬質部材１３から構成され、対向した状
態では軟質部材１２が、内側に位置するように配置され
ている。硬質部材１３には、対向する位置に発光素子
（ＬＥＤ）、受光素子（ＰＤ）が固定して設けられてい
る。FIG. 2 (a) is a four-view drawing of an embodiment of the present invention. A pair of arms 10 are provided at both ends of the bending member 11 so as to face each other. This arm is composed of a soft member 12 and a hard member 13 as shown in the figure, and the soft member 12 is arranged so as to be located inside when facing each other. A light emitting element (LED) and a light receiving element (PD) are fixedly provided on the hard member 13 at opposed positions.
【００１８】軟質部材１２は、被検者の指の挿入を容易
にするため、また、挿入後、指の形状に適合するよう
に、さらにまた、装着ずれが起きないようにその先端が
円みを帯び、かつ中央部が長軸方向に沿って窪んでいる
形状に形成されている。軟質部材として、イソプレンゴ
ム，スチレン−ブタジエンゴム，ブタジエンゴム，ブチ
ルゴム，エチレン−プロピレンゴム，ウレタンゴム，フ
ッ素ゴム等のエラストマー、発泡性スチロール樹脂，発
泡性ウレタンゴム等の発泡性エラストマー、軟質塩化ビ
ニル樹脂等の軟質合成樹脂等弾性を有するものであれば
特に限定されるものではないが、表面の摩擦抵抗が比較
的小さいものが望ましい。The soft member 12 has a rounded tip for facilitating insertion of the finger of the subject, and for conforming to the shape of the finger after insertion and for preventing misalignment. Is formed, and the central portion is formed in a recess along the major axis direction. As the soft member, an elastomer such as isoprene rubber, styrene-butadiene rubber, butadiene rubber, butyl rubber, ethylene-propylene rubber, urethane rubber or fluororubber, foamable styrene resin, foamable elastomer such as foamable urethane rubber, soft vinyl chloride resin, etc. It is not particularly limited as long as it has elasticity such as soft synthetic resin, but it is desirable that the surface friction resistance is relatively small.
【００１９】硬質部材１３としては、硬質塩化ビニル樹
脂，ポリカーボネート，ポリプロピレン等のポリオレフ
ィン樹脂，メラミン樹脂，ポリスチレン，メタクリル樹
脂等の合成樹脂、ステンレス鋼，チタン系合金，アルミ
ニウム，アルミニウム合金等の金属等などが用いられ
る。１１ａは、湾曲部材１１を補強するために設けられ
たもので、硬質塩化ビニル樹脂，ポリカーボネート，ポ
リプロピレン等のポリオレフィン樹脂，メラミン樹脂，
ポリスチレン，メタクリル樹脂等の硬質の合成樹脂が好
ましく用いられる。As the hard member 13, polyolefin resin such as hard vinyl chloride resin, polycarbonate and polypropylene, synthetic resin such as melamine resin, polystyrene and methacrylic resin, metal such as stainless steel, titanium alloy, aluminum and aluminum alloy, etc. Is used. Reference numeral 11a is provided to reinforce the bending member 11, and is made of hard vinyl chloride resin, polycarbonate, polyolefin resin such as polypropylene, melamine resin,
A hard synthetic resin such as polystyrene or methacrylic resin is preferably used.
【００２０】湾曲部材１１としては、バネ鋼、プラスチ
ック製バネ等が用いられる。バネの形状としては、板
状，線状，コイル状のものが用いられるが、板状のもの
が好ましく用いられる。As the bending member 11, spring steel, plastic spring or the like is used. The spring may have a plate shape, a linear shape, or a coil shape, but a plate shape is preferably used.
【００２１】図２（ｃ）に示すように、発光素子，受光
素子は、硬質部材１３内に固定され、軟質部材１２に
は、発光素子，受光素子のほぼ真上の位置に光を透過さ
せるための窓部１７が設けられている。指を挿入しない
状態では、弾性を有する弾性部材１１により、挿入部１
６を閉じている。As shown in FIG. 2C, the light emitting element and the light receiving element are fixed in the hard member 13, and the soft member 12 transmits light to a position almost directly above the light emitting element and the light receiving element. The window part 17 for is provided. When the finger is not inserted, the elastic member 11 having elasticity causes the insertion portion 1 to move.
6 is closed.
【００２２】[0022]
【発明の効果】本発明による指用パルスオキシメータプ
ローブによれば、装着が容易で被検者の指の大きさに係
わらず、適度な接触圧が確保でき、ヒンジが不要で、小
型・軽量で、接触面の動きが直接光軸に影響を与えるこ
とのない指用パルスオキシメータプローブが得られる。According to the pulse oximeter probe for a finger according to the present invention, it is easy to put on, an appropriate contact pressure can be secured regardless of the size of the finger of the subject, a hinge is not required, and it is small and lightweight. Thus, it is possible to obtain a finger pulse oximeter probe in which the movement of the contact surface does not directly affect the optical axis.
【図１】本発明に係る指用パルスオキシメータプローブ
を示す図である。FIG. 1 is a diagram showing a finger pulse oximeter probe according to the present invention.
【図２】本発明に係わる指用パルスオキシメータプロー
ブの詳細を示す図である。FIG. 2 is a diagram showing details of a finger pulse oximeter probe according to the present invention.
【図３】従来の指用パルスオキシメータプローブを示す
図である。FIG. 3 is a diagram showing a conventional finger pulse oximeter probe.
【図４】従来の指用パルスオキシメータプローブを示す
図である。FIG. 4 is a diagram showing a conventional finger pulse oximeter probe.
１０…アーム １１…弾性部材 １２…軟質部材 １３…硬質部材 １４…発光素子 １５…受光素子 １６…挿入部 １７…窓部 DESCRIPTION OF SYMBOLS 10 ... Arm 11 ... Elastic member 12 ... Soft member 13 ... Hard member 14 ... Light emitting element 15 ... Light receiving element 16 ... Insertion part 17 ... Window part
Claims (1)
端に、対向するように連結された１対のアームからな
り、 該アームは、被測定部位に接触するように内側に設けら
れた軟質部材と、該軟質部材の外側に設けられた比較的
硬質の部材とからなり、 該軟質部材は、該アームの先端部が円みを帯びて形成さ
れ、かつ、ほぼ中央部が長軸方向にそって凹部が形成さ
れ、該軟質部材が対向した状態で指が挿入可能な挿入口
が形成され、 該比較的硬質の部材は、内部に少なくとも１対の発光素
子及び受光素子を備えてなることを特徴とする指用パル
スオキシメータ用プローブ。1. A resilient bending member, and a pair of arms connected to opposite ends of the bending member so as to face each other. The arms are provided inside so as to come into contact with a measurement site. And a relatively hard member provided on the outer side of the soft member. The soft member is formed by rounding the tip of the arm and having a long central portion. A recess is formed along the axial direction, and an insertion port into which a finger can be inserted is formed in a state where the soft members face each other. The relatively hard member includes at least a pair of a light emitting element and a light receiving element therein. A probe for a pulse oximeter for fingers, which is characterized in that
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6028622A JPH07236625A (en) | 1994-02-28 | 1994-02-28 | Pulse oxymeter probe for finger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6028622A JPH07236625A (en) | 1994-02-28 | 1994-02-28 | Pulse oxymeter probe for finger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH07236625A true JPH07236625A (en) | 1995-09-12 |
Family
ID=12253658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6028622A Pending JPH07236625A (en) | 1994-02-28 | 1994-02-28 | Pulse oxymeter probe for finger |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07236625A (en) |
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001314395A (en) * | 1999-10-13 | 2001-11-13 | Arkray Inc | Blood collecting position indicating apparatus |
| JP2003240320A (en) * | 2002-02-18 | 2003-08-27 | Toshiba Corp | Air-conditioning system and good sleep device |
| JP2004503286A (en) * | 2000-06-09 | 2004-02-05 | ダイアビーティーズ・ダイアグノスティックス・インコーポレイテッド | Cap for lancing device |
| JP2007054594A (en) * | 2005-07-29 | 2007-03-08 | Nippon Koden Corp | Probe for pulse oximeter |
| US7684842B2 (en) | 2006-09-29 | 2010-03-23 | Nellcor Puritan Bennett Llc | System and method for preventing sensor misuse |
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-
1994
- 1994-02-28 JP JP6028622A patent/JPH07236625A/en active Pending
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