JPH0349519B2 - - Google Patents
Info
- Publication number
- JPH0349519B2 JPH0349519B2 JP1022415A JP2241589A JPH0349519B2 JP H0349519 B2 JPH0349519 B2 JP H0349519B2 JP 1022415 A JP1022415 A JP 1022415A JP 2241589 A JP2241589 A JP 2241589A JP H0349519 B2 JPH0349519 B2 JP H0349519B2
- Authority
- JP
- Japan
- Prior art keywords
- infrared image
- fiber bundle
- laser beam
- infrared
- transmission fiber
- 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.)
- Expired - Lifetime
Links
- 239000000835 fiber Substances 0.000 claims description 29
- 230000005540 biological transmission Effects 0.000 claims description 15
- 238000003780 insertion Methods 0.000 claims description 10
- 230000037431 insertion Effects 0.000 claims description 10
- 238000002647 laser therapy Methods 0.000 claims description 6
- 230000003287 optical effect Effects 0.000 claims description 6
- 201000011510 cancer Diseases 0.000 description 7
- 206010028980 Neoplasm Diseases 0.000 description 6
- 230000001225 therapeutic effect Effects 0.000 description 4
- 230000002159 abnormal effect Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229910016569 AlF 3 Inorganic materials 0.000 description 1
- 229910016036 BaF 2 Inorganic materials 0.000 description 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 1
- 229910017768 LaF 3 Inorganic materials 0.000 description 1
- 150000004770 chalcogenides Chemical class 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000005383 fluoride glass Substances 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
- 239000011521 glass Substances 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 210000004877 mucosa Anatomy 0.000 description 1
- 210000004400 mucous membrane Anatomy 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000004861 thermometry Methods 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
Landscapes
- Instruments For Viewing The Inside Of Hollow Bodies (AREA)
- Laser Surgery Devices (AREA)
- Radiation-Therapy Devices (AREA)
- Measuring And Recording Apparatus For Diagnosis (AREA)
- Endoscopes (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、体腔内粘膜表面などの患部の温度
分布を測定すると同時に、患部に治療用レーザビ
ームを照射することができるレーザ治療用測温内
視鏡に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention is a thermometer for laser therapy that can measure the temperature distribution of an affected area such as the surface of a mucous membrane in a body cavity and simultaneously irradiate the affected area with a therapeutic laser beam. Regarding endoscopes.
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℃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つ
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. ing.
上述のような目的に用いられる測温内視鏡とし
て、赤外像伝達フアイババンドルによつて被写体
の赤外像を伝達し、それをいわゆるサーモビジヨ
ンによつて可視的に変換して、被写体の温度分布
を見ることができるようにしたものがある。その
ような測温内視鏡では、温度分布の異常から癌細
胞などを発見したときには、処置具挿通チヤンネ
ル（鉗子チヤンネル）にレーザガイドフアイバを
挿通して、患部に治療用のレーザビームを照射し
ていた。
As a temperature measuring endoscope used for the above purpose, it transmits an infrared image of the subject through an infrared image transmission fiber bundle, converts it visually using so-called thermovision, and measures the temperature of the subject. There is one that allows you to see the distribution. With such thermometer endoscopes, when cancer cells are discovered due to abnormal temperature distribution, a laser guide fiber is inserted through the treatment instrument insertion channel (forceps channel) and a therapeutic laser beam is irradiated to the affected area. was.
しかし、レーザビームは、処置具挿通チヤンネ
ルを通つて患部に向かうレーザガイドフアイバか
ら発射されるので、サーモビジヨンに表示される
赤外像上の位置とレーザビームが照射される位置
との対応をつけるのは、はなはだ困難であつた。
したがつて、温度分布測定によつてせつかく早期
癌細胞などを発見しても、そこにレーザビームを
正確に照射して治療をすることは極めて困難であ
つた。
However, since the laser beam is emitted from a laser guide fiber that passes through a treatment instrument insertion channel toward the affected area, it is difficult to match the position on the infrared image displayed on the thermovision with the position where the laser beam is irradiated. It was extremely difficult.
Therefore, even if early cancer cells are discovered by temperature distribution measurement, it is extremely difficult to accurately irradiate them with a laser beam and treat them.
本発明は、そのような従来の欠点を解消し、赤
外像（温度分布像）とレーザビーム照射位置との
対応をつけて、赤外像上の正確な位置にレーザビ
ームを照射することができるレーザ治療用測温内
視鏡を提供することを目的とする。 The present invention eliminates such conventional drawbacks and makes it possible to match the infrared image (temperature distribution image) with the laser beam irradiation position and irradiate the laser beam to an accurate position on the infrared image. The purpose of the present invention is to provide a temperature measuring endoscope for laser therapy that can be used for laser therapy.
上記の目的を達成するため、本発明のレーザ治
療用測温内視鏡は、被写体の赤外像を結像するた
めに内視鏡の挿入部の先端に設けられた対物光学
系と、上記対物光学系によつて結像した赤外像を
上記挿入部の外部に伝達するための赤外像伝達フ
アイババンドルと、上記赤外像伝達フアイババン
ドルによつて伝達された赤外像を可視的に変換し
て表示するための赤外像表示手段とを有する測温
内視鏡において、上記赤外像伝達用フアイババン
ドルに、像出射端面側からレーザビームを入射さ
せるためのレーザビーム入射手段を設けたことを
特徴とする。
In order to achieve the above object, the temperature measuring endoscope for laser therapy of the present invention includes an objective optical system provided at the tip of the insertion section of the endoscope to form an infrared image of a subject, and an infrared image transmission fiber bundle for transmitting an infrared image formed by the objective optical system to the outside of the insertion section; and a visible infrared image transmitted by the infrared image transmission fiber bundle. In the thermometering endoscope, the temperature measuring endoscope has an infrared image display means for converting the image into an infrared image and displaying the image. It is characterized by having been established.
挿入部先端の対物光学系によつて結像した被写
体の赤外像が、赤外像伝達フアイババンドルによ
つて挿入部の外部に伝達され、その赤外像が赤外
像表示手段によつて可視的に変換されて表示され
る。これによつて、被写体の温度分布がわかる。
An infrared image of the subject formed by the objective optical system at the tip of the insertion section is transmitted to the outside of the insertion section by an infrared image transmission fiber bundle, and the infrared image is displayed by an infrared image display means. Visually transformed and displayed. This allows the temperature distribution of the subject to be determined.
そして、上記赤外像伝達フアイババンドルに、
像出射端面側からレーザビームを入射し、対物光
学系を通して患部に対してレーザビームを照射す
ることができる。 Then, in the infrared image transmission fiber bundle,
A laser beam is input from the image output end face side, and the laser beam can be irradiated onto the affected area through the objective optical system.
図面を参照して実施例を説明する。 Examples will be described with reference to the drawings.
図中、１は内視鏡の挿入部であり、その先端に
は、シリコン又はゲルマニウムなどの赤外線透過
材料で作られた対物レンズ２が設けられている。
そして、その結像位置には、赤外線透過材料であ
るフツ化物ガラス又はガルコゲナイドガラスなど
で作られた赤外像伝達フアイババンドル３の入射
端面が配置されている。 In the figure, 1 is an insertion section of an endoscope, and an objective lens 2 made of an infrared transparent material such as silicon or germanium is provided at its tip.
At the imaging position, the incident end face of an infrared image transmission fiber bundle 3 made of an infrared transmitting material such as fluoride glass or galcogenide glass is arranged.
フツ化物フアイバとしては、例えば ZrF4：57mol％ BaF2：34mol％ LaF3：5mol％ AlF3：4mol％ の組成のものなどがある。 Examples of the fluoride fiber include those having a composition of ZrF 4 :57 mol% BaF 2 :34 mol% LaF 3 :5 mol% AlF 3 :4 mol%.
また、カルコゲナイドフアイバとしては、例え
ばAsSフアイバなどがある。 In addition, examples of chalcogenide fiber include AsS fiber.
赤外線伝達フアイババンドル３は、例えばコア
の直径が70μm、クラツドの直径が140μmの単フ
アイバを3000本程度規則的に配列したものであ
り、その断面は約７×７mm2である。そして、波長
が数100nmから5μm程度の範囲の赤外光を透過す
る。 The infrared transmitting fiber bundle 3 is a regular arrangement of about 3000 single fibers, each having a core diameter of 70 μm and a cladding diameter of 140 μm, and has a cross section of about 7×7 mm 2 . It transmits infrared light with a wavelength ranging from several 100 nm to about 5 μm.
赤外像伝達フアイババンドル３の出射側端面３
ｃに対向して、マイクロスコープ４を装着した赤
外線カメラ５が配置されており、赤外像伝達フア
イババンドル３によつて伝達された赤外像がここ
で検知される。そしてその赤外像は、変換ユニツ
ト６によつて、被写体の温度の相違が可視的な色
の相違に変換され、デイスプレイ７上に被写体の
温度分布が色別に表示される。 Output side end face 3 of infrared image transmission fiber bundle 3
An infrared camera 5 equipped with a microscope 4 is arranged opposite c, and the infrared image transmitted by the infrared image transmitting fiber bundle 3 is detected here. Then, in the infrared image, a conversion unit 6 converts the difference in temperature of the object into a visible difference in color, and the temperature distribution of the object is displayed on the display 7 in each color.
１０は、例えば波長1.06μmのNd：YAGレー
ザビームを発生するレーザ光源であり、ここで発
生したレーザビームは、レーザガイドフアイバ１
１内に導かれる。 10 is a laser light source that generates a Nd:YAG laser beam with a wavelength of 1.06 μm, for example, and the laser beam generated here is transmitted through the laser guide fiber 1.
1.
１２は、赤外線伝達フアイババンドル３の出射
端部３ｃとマイクロスコープ４との間に配置され
た波長選択ミラーである。この波長選択ミラー１
２は、例えば2μm以上の波長の光を透過して2μm
以下の波長の光は反射する。 Reference numeral 12 denotes a wavelength selection mirror disposed between the output end 3c of the infrared transmission fiber bundle 3 and the microscope 4. This wavelength selection mirror 1
2 is, for example, transmitting light with a wavelength of 2 μm or more to 2 μm.
Light with the following wavelengths is reflected.
したがつて、赤外像伝達フアイババンドル３か
ら出射された赤外光は波長選択ミラー１２を透過
し、レーザガイドフアイバ１１から出射されたレ
ーザビームは波長選択ミラー１２で反射されて、
赤外像伝達フアイババンドル３に入射する。 Therefore, the infrared light emitted from the infrared image transmission fiber bundle 3 passes through the wavelength selection mirror 12, and the laser beam emitted from the laser guide fiber 11 is reflected by the wavelength selection mirror 12.
incident on the infrared image transmitting fiber bundle 3.
そして、レーザビームは赤外像伝達フアイババ
ンドル３内を伝達されて、対物レンズ２を通つて
被写体（患部）に照射される。 The laser beam is then transmitted through the infrared image transmission fiber bundle 3, passes through the objective lens 2, and is irradiated onto the subject (affected area).
１５は、レーザガイドフアイバ１１の出射端部
を２次元的に移動させて、赤外像伝達フアイババ
ンドル３に対するレーザビームの入射位置を調整
する位置決め装置である。この位置決め装置１５
の動作は、例えば２つのパルスモータ（図示せ
ず）によつて行われ、そのパルスモータの動作を
制御する制御信号が制御装置１６から出力され
る。この制御装置１６は変換ユニツト６に接続さ
れており、位置決め装置１５の動きに連動して移
動する＋印のカーソル１７が、デイスプレイ７上
に表示される。このカーソル１７は、デイスプレ
イ７上に表示される被写体の温度分布像上におい
て、レーザビームが照射される位置を示すように
関連づけられている。 Reference numeral 15 denotes a positioning device that two-dimensionally moves the output end of the laser guide fiber 11 to adjust the incident position of the laser beam on the infrared image transmission fiber bundle 3. This positioning device 15
The operation is performed by, for example, two pulse motors (not shown), and a control signal for controlling the operation of the pulse motors is output from the control device 16. This control device 16 is connected to the conversion unit 6, and a + sign cursor 17 that moves in conjunction with the movement of the positioning device 15 is displayed on the display 7. The cursor 17 is associated with the temperature distribution image of the subject displayed on the display 7 so as to indicate the position to which the laser beam is irradiated.
このようにして、被写体（患部）の温度分布を
見ながら、その範囲内の所望の位置に、照射位置
を視認しながら治療用のレーザビームを照射する
ことができる。 In this way, it is possible to irradiate a therapeutic laser beam to a desired position within the temperature distribution of the subject (affected area) while visually checking the irradiation position.
本発明のレーザ治療用測温内視鏡によれば、被
写体の赤外像を伝達する赤外像伝達フアイババン
ドルを通じて、被写体の温度分布を見ながら、同
時にその被写体に対して治療用レーザビームを照
射することができる。したがつて、温度分布に異
常のある患部などに正確にレーザビームを照射し
て治療を行うことができる優れた効果を有する。
According to the thermometry endoscope for laser therapy of the present invention, the temperature distribution of the subject is observed through the infrared image transmission fiber bundle that transmits the infrared image of the subject, and at the same time, the therapeutic laser beam is applied to the subject. It can be irradiated. Therefore, it has an excellent effect of being able to accurately irradiate a laser beam to a diseased area or the like where there is an abnormal temperature distribution to perform treatment.
図は本発明の一実施例の構成略示図である。
１…挿入部、２…対物レンズ、３…赤外伝達用
フアイババンドル、５…赤外線カメラ、６…変換
ユニツト、７…デイスプレイ、１０…レーザ光
源、１１…レーザガイドフアイバ、１２…波長選
択ミラー、１５…位置決め装置。
The figure is a schematic diagram of the configuration of an embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... Insertion part, 2... Objective lens, 3... Infrared transmission fiber bundle, 5... Infrared camera, 6... Conversion unit, 7... Display, 10... Laser light source, 11... Laser guide fiber, 12... Wavelength selection mirror, 15...Positioning device.
Claims (1)
入部の先端に設けられた対物光学系と、 上記対物光学系によつて結像した赤外像を上記
挿入部の外部に伝達するための赤外像伝達フアイ
ババンドルと、 上記赤外像伝達フアイババンドルによつて伝達
された赤外像を可視的に変換して表示するための
赤外像表示手段 とを有する測温内視鏡において、 上記赤外像伝達用フアイババンドルに、像出射
端面側からレーザビームを入射させるためのレー
ザビーム入射手段を設けた ことを特徴とするレーザ治療用測温内視鏡。[Scope of Claims] 1. An objective optical system provided at the tip of the insertion section of the endoscope to form an infrared image of a subject, and an infrared image formed by the objective optical system as described above. an infrared image transmission fiber bundle for transmitting the infrared image to the outside of the insertion section; an infrared image display means for visually converting and displaying the infrared image transmitted by the infrared image transmission fiber bundle; A temperature measuring endoscope for laser therapy, characterized in that the infrared image transmitting fiber bundle is provided with a laser beam input means for inputting a laser beam from the image output end face side. mirror.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1022415A JPH02203871A (en) | 1989-01-31 | 1989-01-31 | Temperature measuring endoscope for laser treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1022415A JPH02203871A (en) | 1989-01-31 | 1989-01-31 | Temperature measuring endoscope for laser treatment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02203871A JPH02203871A (en) | 1990-08-13 |
| JPH0349519B2 true JPH0349519B2 (en) | 1991-07-29 |
Family
ID=12082034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1022415A Granted JPH02203871A (en) | 1989-01-31 | 1989-01-31 | Temperature measuring endoscope for laser treatment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02203871A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3552844B2 (en) * | 1996-04-30 | 2004-08-11 | 富士写真フイルム株式会社 | Endoscope |
| EP4098320A4 (en) * | 2020-01-31 | 2024-02-14 | National University Corporation Tokai National Higher Education and Research System | Light/heat treatment device having thermo-endoscope |
-
1989
- 1989-01-31 JP JP1022415A patent/JPH02203871A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02203871A (en) | 1990-08-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |