JPH0482532A - Temperature distribution measuring apparatus for endoscope - Google Patents
Temperature distribution measuring apparatus for endoscopeInfo
- Publication number
- JPH0482532A JPH0482532A JP2196778A JP19677890A JPH0482532A JP H0482532 A JPH0482532 A JP H0482532A JP 2196778 A JP2196778 A JP 2196778A JP 19677890 A JP19677890 A JP 19677890A JP H0482532 A JPH0482532 A JP H0482532A
- Authority
- JP
- Japan
- Prior art keywords
- objective lens
- infrared
- infrared rays
- temperature distribution
- isolation film
- 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
- 230000005540 biological transmission Effects 0.000 claims abstract description 11
- 239000000463 material Substances 0.000 claims abstract description 4
- 238000003780 insertion Methods 0.000 claims description 6
- 230000037431 insertion Effects 0.000 claims description 6
- 238000002955 isolation Methods 0.000 abstract description 20
- 239000000835 fiber Substances 0.000 abstract description 9
- 239000007788 liquid Substances 0.000 abstract description 5
- 229920003002 synthetic resin Polymers 0.000 abstract description 3
- 239000000057 synthetic resin Substances 0.000 abstract description 3
- 239000007787 solid Substances 0.000 abstract description 2
- 230000000249 desinfective effect Effects 0.000 abstract 1
- 239000012528 membrane Substances 0.000 description 12
- 238000005259 measurement Methods 0.000 description 7
- 229920005989 resin Polymers 0.000 description 7
- 239000011347 resin Substances 0.000 description 7
- 201000011510 cancer Diseases 0.000 description 5
- 206010028980 Neoplasm Diseases 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 239000000645 desinfectant Substances 0.000 description 3
- 239000013307 optical fiber Substances 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 239000006059 cover glass Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- SBIBMFFZSBJNJF-UHFFFAOYSA-N selenium;zinc Chemical compound [Se]=[Zn] SBIBMFFZSBJNJF-UHFFFAOYSA-N 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000012780 transparent material Substances 0.000 description 2
- 239000005062 Polybutadiene Substances 0.000 description 1
- 229920002367 Polyisobutene Polymers 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- CUGMJFZCCDSABL-UHFFFAOYSA-N arsenic(3+);trisulfide Chemical compound [S-2].[S-2].[S-2].[As+3].[As+3] CUGMJFZCCDSABL-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000004205 dimethyl polysiloxane Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052732 germanium Inorganic materials 0.000 description 1
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 210000004877 mucosa Anatomy 0.000 description 1
- 210000003097 mucus Anatomy 0.000 description 1
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 1
- 229920002492 poly(sulfone) Polymers 0.000 description 1
- 229920002857 polybutadiene Polymers 0.000 description 1
- -1 polydimethylsiloxane Polymers 0.000 description 1
- 229920001195 polyisoprene Polymers 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、内視鏡に併用して体腔内などの被測定部の
温度分布を測定する内視鏡用温度分布測定装置に関する
。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a temperature distribution measuring device for an endoscope that is used in combination with an endoscope to measure the temperature distribution of a part to be measured such as within a body cavity.
医療用に用いられる内視鏡は、癌の発見などを行うため
に広く用いられているが、早期癌や粘膜下の悪性腫瘍な
どを肉眼で発見するのは極めて困難である。しかし、癌
細胞などの異常細胞は正常な細胞より１’Ｃ程度温度が
高いので、内視鏡を利用して体腔粘膜の温度分布を測定
することによって、早期癌等を発見する試みがなされて
いる。Endoscopes used for medical purposes are widely used to detect cancer, etc., but it is extremely difficult to detect early cancer or submucosal malignant tumors with the naked eye. However, since abnormal cells such as cancer cells have a temperature about 1'C higher than normal cells, attempts have been made to detect early cancer by measuring the temperature distribution of body cavity mucosa using an endoscope. There is.
赤外用対物レンズは、赤外線をよく通すジンクセレン（
ＺｎＳｅ）などによって形成され、その表裏両面には赤
外線反射防止コーティングが施されている。The infrared objective lens is made of zinc selenium (
ZnSe), etc., and an anti-infrared reflection coating is applied to both the front and back surfaces.
ところで、内視鏡の対物レンズなどは、一般にカバーガ
ラスによって外界から隔離されている。By the way, the objective lens of an endoscope is generally isolated from the outside world by a cover glass.
しかし、赤外用対物レンズに対して同様の構成をとると
、カバーガラスで赤外線が遮られてしまう。However, if a similar configuration is adopted for an infrared objective lens, the infrared rays will be blocked by the cover glass.
そこで従来の内視鏡用温度分布測定装置においては、赤
外用対物レンズは、コーティング表面が外界に露出して
配置されていた。Therefore, in the conventional temperature distribution measuring device for an endoscope, the infrared objective lens is disposed such that the coating surface thereof is exposed to the outside world.
内視鏡用温度分布測定装置の先端にゴミや体腔内の汚液
などが付着したら、ガーゼ等で拭きとったり、感染防止
のために消毒液に浸漬する必要がある。If dirt or sewage from the body cavity adheres to the tip of the endoscope temperature distribution measurement device, it is necessary to wipe it off with gauze or soak it in a disinfectant solution to prevent infection.
ところが、赤外用対物レンズは傷がつき易くて衝撃など
外力に弱く、コーテイング面を拭いたり、装置を液に浸
漬すれば、コーティングと共にレンズ面までが損傷して
しまう。However, infrared objective lenses are easily scratched and are susceptible to external forces such as impact, and if the coated surface is wiped or the device is immersed in liquid, both the coating and the lens surface will be damaged.
このように赤外用対物レンズは強度的に弱いものである
反面、非常に高価なものである。したかって、たとえ表
面が汚れたような場合でも、レンズに傷を付けないよう
にそのまま放置せざるを得す、温度分布測定性能が著し
く低下してしまう欠点があった。As described above, infrared objective lenses are weak in strength, but on the other hand, they are very expensive. Therefore, even if the surface is dirty, it is necessary to leave the lens as it is so as not to damage the lens, which has the drawback of significantly lowering the temperature distribution measurement performance.
この発明は、そのような従来の欠点を解消し、赤外用対
物レンズを損傷するおそれがなく、しかも安定した温度
分布測定性能を得ることができる内視鏡用温度分布測定
装置を提供することを目的とする。It is an object of the present invention to provide a temperature distribution measuring device for an endoscope that eliminates such conventional drawbacks, does not cause damage to the infrared objective lens, and can obtain stable temperature distribution measurement performance. purpose.
上記の目的を達成するため、本発明の内視鏡用温度分布
測定装置は、赤外像を伝達する赤外像伝達手段の像入射
端面に被測定部の赤外像を結像するための赤外用対物レ
ンズを挿入部の先端に設けた内視鏡用温度分布測定装置
において、赤外線透過材料からなる膜を上記赤外用対物
レンズの前方に設けて、上記赤外用対物レンズの表面を
外界から隔離したことを特徴とする。In order to achieve the above object, the temperature distribution measuring device for an endoscope of the present invention has a device for forming an infrared image of a part to be measured on an image incident end surface of an infrared image transmitting means that transmits an infrared image. In an endoscope temperature distribution measuring device in which an infrared objective lens is provided at the tip of the insertion section, a film made of an infrared transparent material is provided in front of the infrared objective lens to protect the surface of the infrared objective lens from the outside world. Characterized by isolation.
赤外用対物レンズは膜によって外界から隔離されている
ので、そのレンズ表面は、体腔内の汚液などによって汚
されない。Since the infrared objective lens is isolated from the outside world by a membrane, the lens surface is not contaminated by sewage in the body cavity.
膜の表面が汚れたときには、拭いたり消毒液に浸漬して
その汚れを除去することができるが、その行為によって
赤外用対物レンズには何も触れない。When the surface of the membrane becomes dirty, it can be wiped or soaked in a disinfectant solution to remove the dirt, but this action does not touch the infrared objective lens.
また、赤外像は、膜を透過して、赤外用対物レンズによ
って赤外像伝達手段の像入射端面に結像する。Further, the infrared image passes through the membrane and is focused on the image incident end surface of the infrared image transmission means by an infrared objective lens.
図面を参照して実施例を説明する。 Examples will be described with reference to the drawings.
第１図は、内視鏡の鉗子チャンネルなどに挿通して体腔
内に挿入される内視鏡用温度分布測定装置の挿入部先端
を示している。FIG. 1 shows the tip of an insertion portion of an endoscope temperature distribution measuring device that is inserted into a body cavity by passing through a forceps channel of an endoscope.
図中、１は、挿入部をほぼ全長にわたって外装する合成
樹脂製の可撓性チューブであり、その先端に口金２が固
着されている。そして、その口金２には、赤外像を伝達
するための赤外像伝達ファイババンドル３の赤外像入射
端部が固着されている。３ａは、赤外像入射端面である
。In the figure, reference numeral 1 denotes a flexible tube made of synthetic resin that covers almost the entire length of the insertion section, and a base 2 is fixed to the tip of the tube. An infrared image incident end of an infrared image transmission fiber bundle 3 for transmitting an infrared image is fixed to the base 2. 3a is an infrared image incident end face.
赤外像伝達ファイババンドル３は、例えば硫化砒素（Ａ
ｓＳ）により形成されたコアと、その周囲を被覆する四
フッ化エチレン樹脂により形成されたクラッドからなる
赤外用光学ファイバを、多数束ねて形成されている。赤
外用光学ファイバは、入射端面３ａと図示されていない
出射端面とで同一配列に並べて各々固められ、入射端部
と出射端部との間の中間部分では、各赤外用光学ファイ
バどうしを互いに分離して、可撓性を有するように構成
されている。The infrared image transmission fiber bundle 3 is made of, for example, arsenic sulfide (A
It is formed by bundling a large number of infrared optical fibers each having a core made of sS) and a cladding made of tetrafluoroethylene resin surrounding the core. The infrared optical fibers are arranged and hardened in the same arrangement at the input end face 3a and the output end face (not shown), and the infrared optical fibers are separated from each other in the intermediate portion between the input end and the output end. It is configured to have flexibility.
口金２に螺合された筒状のレンズ筒４内には、赤外用対
物レンズ５が固着されている。赤外用対物レンズ５は、
例えばジンクセレン（ＺｎＳｅ）により形成されていて
、第１図左方にある被測定部の赤外像を赤外像伝達ファ
イババンドルの入射端面３ａに結像する位置に配置され
ている。また、赤外用対物レンズ５の表裏両面には、赤
外線反射防止コーティングが施されている。６は、口金
２とレンズ筒４との間をシールするシール用のＯリング
である。An infrared objective lens 5 is fixed within a cylindrical lens barrel 4 screwed onto the base 2. The infrared objective lens 5 is
For example, it is made of zinc selenium (ZnSe) and is placed at a position where an infrared image of the part to be measured on the left side of FIG. 1 is formed on the incident end surface 3a of the infrared image transmission fiber bundle. Further, both the front and back surfaces of the infrared objective lens 5 are coated with an anti-infrared reflection coating. 6 is an O-ring for sealing between the base 2 and the lens barrel 4.
赤外用対物レンズ５の前方に位置するレンズ筒４の先端
部分には、赤外線を透過する合成樹脂材料で形成された
膜（隔離膜）７がレンズ筒４の先端部分を密閉するよう
に被覆、固着されている。The tip of the lens barrel 4 located in front of the infrared objective lens 5 is covered with a film (isolation film) 7 formed of a synthetic resin material that transmits infrared rays so as to seal the tip of the lens barrel 4. It is fixed.
したがって、赤外用対物レンズ５の表面は隔離膜７によ
って外界から完全に隔離されており、赤外用対物レンズ
５には外界から液体や固体が触れることはできない。Therefore, the surface of the infrared objective lens 5 is completely isolated from the outside world by the isolation film 7, and no liquid or solid can come into contact with the infrared objective lens 5 from the outside world.
隔離膜７を形成する赤外線透過樹脂としては、例えばポ
リイソブチレン等のポリブタン樹脂、ポリブタジェン樹
脂、ポリイソプレン樹脂、例えばポリジメチルシロキサ
ン等のケイ素樹脂又はポリサルフォン樹脂などを用いる
ことができ、被測定部の赤外線像は、この隔離膜７を透
過して、赤外用対物レンズ５によって赤外像伝達ファイ
ババンドル３の入射端面３ａに結像する。As the infrared transmitting resin forming the isolation membrane 7, for example, polybutane resin such as polyisobutylene, polybutadiene resin, polyisoprene resin, silicon resin such as polydimethylsiloxane, or polysulfone resin can be used. The image passes through this isolation film 7 and is focused on the incident end surface 3a of the infrared image transmission fiber bundle 3 by the infrared objective lens 5.
また、隔離膜７表面の汚れを拭き取ったり、隔離膜７だ
けを交換することができる。また、この温度分布測定装
置の挿入部先端を消毒液などに浸漬しても、液は、隔離
膜７により内部への侵入が阻止されて、赤外用対物レン
ズ５や赤外像伝達ファイババンドル３には達しない。Further, dirt on the surface of the isolation membrane 7 can be wiped off, or only the isolation membrane 7 can be replaced. Furthermore, even if the tip of the insertion part of this temperature distribution measuring device is immersed in a disinfectant solution or the like, the isolation membrane 7 prevents the solution from entering the inside, and the infrared objective lens 5 and the infrared image transmission fiber bundle 3 does not reach.
第２図は上述の内視鏡用温度分布測定装置の全体略本図
であり、赤外像伝達ファイババンドル３の出射端側は、
サーモビジョン１０に接続されている。１１は、サーモ
ビジョン１０に入る赤外像を拡大するための拡大レンズ
であり、シリコン、ゲルマニウム等の赤外線透過材料で
作られている。FIG. 2 is an overall schematic diagram of the above-mentioned temperature distribution measuring device for an endoscope, and the output end side of the infrared image transmission fiber bundle 3 is
It is connected to the thermovision 10. Reference numeral 11 denotes a magnifying lens for magnifying the infrared image entering the thermovision 10, and is made of an infrared transparent material such as silicon or germanium.
１２は、赤外像伝達ファイバハンドル３から入射した赤
外像を電気信号に変換する赤外線カメラ。12 is an infrared camera that converts an infrared image incident from the infrared image transmission fiber handle 3 into an electric signal.
１３は、赤外線カメラ１２からの信号を、可視的な色の
変化を示す信号に変換する変換ユニットであり、ＣＲＴ
などのデイスプレィ１４上に、被測定部３０の赤外像、
即ち温度分布が色の相違として可視的に表示される。13 is a conversion unit that converts the signal from the infrared camera 12 into a signal indicating a visible color change;
An infrared image of the part to be measured 30,
That is, the temperature distribution is visually displayed as a difference in color.
第３図は、本発明の第２の実施例を示しており、隔離膜
７に弾力性を持たせて、空気などによってバルーン状に
膨張させることができるようにしたものである。FIG. 3 shows a second embodiment of the present invention, in which the isolation membrane 7 is made elastic so that it can be inflated into a balloon shape by air or the like.
このようにすると、隔離膜７をクツションとして挿入部
先端を被測定部３０に押し当て、測定中のブレを無くし
て装置と被測定部３０の距離を一定に保つことができる
。In this way, the distal end of the insertion portion is pressed against the part to be measured 30 using the isolation membrane 7 as a cushion, and the distance between the device and the part to be measured 30 can be kept constant without shaking during measurement.
また、隔離膜７に粘液などが付着した場合でも、バルー
ン状に膨らませて被測定部３０に密着させることにより
、付着物が温度分布測定に与える誤差をなくすことかで
きる。Further, even if mucus or the like adheres to the isolation membrane 7, by inflating it into a balloon shape and bringing it into close contact with the measurement target part 30, it is possible to eliminate errors caused by the adhered substance in temperature distribution measurement.
さらに、比較的細い管腔内などではバルーン状に膨らま
せることによ°す、装置先端の位置を固定することがで
きる。Furthermore, the position of the distal end of the device can be fixed by inflating it like a balloon in a relatively narrow lumen.
本発明の内視鏡用温度分布測定装置によれば、赤外用対
物レンズを外界から隔離する隔離膜を設けたので、赤外
用対物レンズに傷や汚れが付くおそれがなく、また隔離
膜は汚れたら洗浄、消毒でき、交換しても赤外用対物レ
ンズに比べればはるかに安価である。According to the endoscope temperature distribution measuring device of the present invention, since the isolation film is provided to isolate the infrared objective lens from the outside world, there is no risk of the infrared objective lens being scratched or dirty, and the isolation film is not contaminated. It can be cleaned and disinfected, and replacement is much cheaper than infrared objective lenses.
また隔離膜をバルーン状に膨らませれば、測定中に装置
の位置を安定させ、精度の良い温度分布を測定すること
ができる。Furthermore, if the isolation membrane is inflated into a balloon shape, the position of the device can be stabilized during measurement, making it possible to measure temperature distribution with high accuracy.
３・−・赤外像伝達ファイバ７＜ンドル、５・・・赤外
用対物レンズ、
７−・・隔離膜（膜）。3--Infrared image transmission fiber 7 <endle, 5--Infrared objective lens, 7--Isolation film (membrane).
Claims (1)
部の赤外像を結像するための赤外用対物レンズを挿入部
の先端に設けた内視鏡用温度分布測定装置において、 赤外線透過材料からなる膜を上記赤外用対物レンズの前
方に設けて、上記赤外用対物レンズの表面を外界から隔
離したことを特徴とする内視鏡用温度分布測定装置。[Scope of Claims] An endoscope provided with an infrared objective lens at the distal end of an insertion section for forming an infrared image of a part to be measured on an image incident end surface of an infrared image transmission means for transmitting an infrared image. A temperature distribution measuring device for an endoscope, characterized in that a film made of an infrared transmitting material is provided in front of the infrared objective lens to isolate the surface of the infrared objective lens from the outside world. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2196778A JPH0482532A (en) | 1990-07-25 | 1990-07-25 | Temperature distribution measuring apparatus for endoscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2196778A JPH0482532A (en) | 1990-07-25 | 1990-07-25 | Temperature distribution measuring apparatus for endoscope |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0482532A true JPH0482532A (en) | 1992-03-16 |
Family
ID=16363479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2196778A Pending JPH0482532A (en) | 1990-07-25 | 1990-07-25 | Temperature distribution measuring apparatus for endoscope |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0482532A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007138889A1 (en) * | 2006-05-31 | 2007-12-06 | Olympus Medical Systems Corp. | Endoscope and endoscope system |
| WO2021132153A1 (en) * | 2019-12-26 | 2021-07-01 | 富士フイルム株式会社 | Endoscope and endoscope system |
-
1990
- 1990-07-25 JP JP2196778A patent/JPH0482532A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007138889A1 (en) * | 2006-05-31 | 2007-12-06 | Olympus Medical Systems Corp. | Endoscope and endoscope system |
| JP2007319396A (en) * | 2006-05-31 | 2007-12-13 | Olympus Medical Systems Corp | Endoscope and endoscopic system |
| WO2021132153A1 (en) * | 2019-12-26 | 2021-07-01 | 富士フイルム株式会社 | Endoscope and endoscope system |
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