JPH0793931B2 - Endoscope device - Google Patents
Endoscope deviceInfo
- Publication number
- JPH0793931B2 JPH0793931B2 JP60269647A JP26964785A JPH0793931B2 JP H0793931 B2 JPH0793931 B2 JP H0793931B2 JP 60269647 A JP60269647 A JP 60269647A JP 26964785 A JP26964785 A JP 26964785A JP H0793931 B2 JPH0793931 B2 JP H0793931B2
- Authority
- JP
- Japan
- Prior art keywords
- light
- subject
- laser
- light source
- solid
- 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
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/04—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor combined with photographic or television appliances
- A61B1/05—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor combined with photographic or television appliances characterised by the image sensor, e.g. camera, being in the distal end portion
Description
【発明の詳細な説明】 ［発明の技術分野］ この発明は例えば患部を治療するのに用いられる内視鏡
装置に関する。Description: TECHNICAL FIELD OF THE INVENTION The present invention relates to an endoscope apparatus used for treating an affected area, for example.
［発明の技術的背景］ 従来より、内視鏡装置を用いて生体組織の治療等を行う
ことは周知である。そして、このような治療に用いられ
る内視鏡装置としては、第３図に示すように内視鏡１の
先端部に被写体結像用の対物レンズ２を設け、この対物
レンズ２で結像した被写体３を使用者がイメージファイ
バ管４を介して内視鏡１の基端に設けられる接眼レンズ
５より観察しながら、レーザ発振装置６よりレーザ例え
ば生体組織に対して透過率の大きいYAGレーザ（波長1.0
6mm）を照射して主体組織の患部を熱凝固させることで
治療を行うように構成されている。[Technical Background of the Invention] It is well known that medical treatment of living tissue is performed using an endoscope apparatus. As an endoscope apparatus used for such treatment, as shown in FIG. 3, an objective lens 2 for imaging a subject is provided at the tip of the endoscope 1 and an image is formed by this objective lens 2. While the user observes the subject 3 through the image fiber tube 4 through the eyepiece 5 provided at the base end of the endoscope 1, a laser such as a YAG laser having a large transmittance with respect to a living tissue such as a laser from the laser oscillation device 6 ( Wavelength 1.0
6 mm) is irradiated to heat-coagulate the affected part of the main tissue to perform treatment.
なお、図中７は照明用の光源装置で、その照明光をライ
トガイド８を介して上記被写体３に照射して撮像可能に
照明する。Reference numeral 7 in the drawing denotes a light source device for illumination, which illuminates the subject 3 through a light guide 8 and illuminates the subject 3 so that an image can be captured.
［背景技術の問題点］ ところが、上記内視鏡装置では、第４図に示す如き人間
の視感度特性ｂとYAGレーザの分光特性ａの関係上、レ
ーザ発振装置６から照射されたYAGレーザを可視するこ
とが不可能であり、該YAGレーザにより被写体３が熱凝
固してその部分が変色しないと照射位置を確認すること
ができないために、YAGレーザを誤照射する恐れを有し
ていた。[Problems of Background Art] However, in the above-mentioned endoscope apparatus, the YAG laser emitted from the laser oscillation device 6 is used because of the relationship between the human visual sensitivity characteristic b and the spectral characteristic a of the YAG laser as shown in FIG. The YAG laser cannot be visualized, and the irradiation position cannot be confirmed unless the subject 3 is thermally solidified by the YAG laser and the portion is not discolored. Therefore, the YAG laser may be erroneously irradiated.
［発明の目的］ この発明は上記の事情に鑑みてなされたもので、簡易な
構成で、かつ、可及的に取扱い操作の確実化を促進し得
るようにした内視鏡装置を提供することを目的とする。[Object of the Invention] The present invention has been made in view of the above circumstances, and provides an endoscope apparatus having a simple structure and capable of promoting reliable handling operation as much as possible. With the goal.
［発明の概要］ すなわち、この発明は、先端部に設けられた被写体結像
用の対物レンズと、この対物レンズの光軸上に設けられ
結像された被写体像を光電変換する固体撮像素子と、赤
外域を含む光を発生する光源と、この光源から発生され
た光を前記先端部から被写体に対して照明光として照射
する照明伝送路と、前記先端部から前記被写体の一部に
対して治療用のレーザ光を照射するレーザ発振装置と、
前記固体撮像素子の出力信号を信号処理回路に導く信号
伝送路とを具備し、前記光源と前記照明伝送路との光路
上の所定の位置に、前記光源からの光に対して赤外域を
制限する第１の赤外カットフィルタと、前記固体撮像素
子と前記被写体との光路上の所定の位置に、前記被写体
からの前記照明光およびレーザ光の反射光に対して可視
域および前記レーザ光の帯域を許容し、その他の赤外域
を制限する第２の赤外カットフィルタを配置して構成
し、所期の目的を達成したものである。[Summary of the Invention] That is, the present invention provides an objective lens for image-forming a subject, which is provided at a distal end portion, and a solid-state imaging device which is provided on the optical axis of the objective lens and photoelectrically converts the imaged subject image. A light source that emits light including an infrared region, an illumination transmission path that irradiates the subject with the light generated from the light source as illumination light, and the tip portion to a part of the subject. A laser oscillating device for irradiating a therapeutic laser beam,
A signal transmission path for guiding an output signal of the solid-state image pickup device to a signal processing circuit, and limiting an infrared region to light from the light source at a predetermined position on an optical path between the light source and the illumination transmission path. A first infrared cut filter, a predetermined position on the optical path between the solid-state image sensor and the subject, and the visible light range and the laser light of the illumination light and the laser light reflected from the subject. A second infrared cut filter that allows a band and limits other infrared regions is arranged and configured to achieve the intended purpose.
「発明の実施例」 以下、この発明の実施例について、図面を参照して詳細
に説明する。Embodiments of the Invention Embodiments of the present invention will be described in detail below with reference to the drawings.
第１図はこの発明の一実施例に係る内視鏡装置を示すも
ので、図中10は内視鏡本体部の一端に移動調整自在に設
けられる内視鏡先端部である。この内視鏡先端部10には
被写体結像用の対物レンズ11が配設され、この対物レン
ズ11の光軸上には第２図に示すように分光感度Ｂを有す
る赤外カットフィルタ12を介して可視域乃至赤外域の分
光感度Ａを有する固体撮像素子13が配設される。この固
体撮像素子13は上記対物レンズ12によってその感光面上
に結像した被写体14を画像信号に光電変換せしめるもの
で、その出力端がビデオ信号処理回路15を介し表示装置
例えばCRTモニター16に接続される。FIG. 1 shows an endoscope apparatus according to an embodiment of the present invention, in which reference numeral 10 denotes an endoscope distal end portion which is provided at one end of an endoscope main body portion so as to be movable and adjustable. An objective lens 11 for imaging a subject is provided at the tip 10 of the endoscope, and an infrared cut filter 12 having a spectral sensitivity B is provided on the optical axis of the objective lens 11 as shown in FIG. A solid-state image pickup device 13 having a spectral sensitivity A in the visible region to the infrared region is disposed therethrough. The solid-state image sensor 13 photoelectrically converts an object 14 imaged on its photosensitive surface by the objective lens 12 into an image signal, and its output end is connected to a display device such as a CRT monitor 16 via a video signal processing circuit 15. To be done.
また、内視鏡先端部10には照明光照射口17が設けられ、
この照明光照射口17にはライトライン18を介して光源装
置19の出力端が連結される。この光源装置19はその光源
20に対して熱線吸収ガラス21を介して赤外カットフィル
タ22が配設され、この赤外カットフィルタ22と上記出力
端との間には分光特性を第４図中ｃで示す如く制御せし
める例えばコンデンサレンズ23が配設される。Further, an illumination light irradiation port 17 is provided in the endoscope tip portion 10,
An output end of a light source device 19 is connected to the illumination light irradiation port 17 via a light line 18. This light source device 19 is the light source
An infrared cut filter 22 is arranged for the 20 through a heat ray absorbing glass 21, and the spectral characteristic is controlled between the infrared cut filter 22 and the output end as shown by c in FIG. A condenser lens 23 is provided.
さらに、上記内視鏡先端部10には患部治療用のレーザ照
射口24が設けられ、このレーザ照射口24にはレーザライ
ン25を介して例えばYAGレーザを出力するレーザ発振装
置26の出力端が連結される。Further, the endoscope tip portion 10 is provided with a laser irradiation port 24 for treating a diseased part, and the laser irradiation port 24 has an output end of a laser oscillation device 26 that outputs, for example, a YAG laser through a laser line 25. Be connected.
すなわち、上記構成において、被写体14は光源装置19か
らの分光特性ｃを有する照明光がライトライン18を介し
て照明光照射口17より照射されると、その反射光が対物
レンズ11によって赤外カットフィルタ12を介して固体撮
像素子13の感光面上に結像される。そして、その被写体
像は画像信号に光電変換された後、ビデオ信号処理回路
15で信号処理され、CRTモニター16に表示される。同時
に、レーザ発振装置26から出力されるYAGレーザはレー
ザライン25を介してレーザ照射口24より上記被写体14に
照射されると、上記対物レンズ11によって赤外カットフ
ィルタ12を介して固体撮像素子13の感光面に結像される
が、このとき赤外カットフィルタ12の赤外域を制限する
分光特性により、そのレーザ光像は制限されつつも、固
体撮像素子13により光電変換される。そして、ビデオ信
号処理回路15で信号処理され、CRTモニター16に入力さ
れて上記被写体像とともに表示される。That is, in the above configuration, when the subject 14 is illuminated with illumination light having the spectral characteristic c from the light source device 19 from the illumination light irradiation port 17 through the light line 18, the reflected light thereof is infrared-cut by the objective lens 11. An image is formed on the photosensitive surface of the solid-state image sensor 13 via the filter 12. Then, the subject image is photoelectrically converted into an image signal, and then the video signal processing circuit.
The signal is processed at 15 and displayed on the CRT monitor 16. At the same time, when the YAG laser output from the laser oscillating device 26 is applied to the subject 14 from the laser irradiation opening 24 via the laser line 25, the solid-state image pickup device 13 is applied by the objective lens 11 via the infrared cut filter 12. An image is formed on the photosensitive surface of the solid-state image pickup device 13 while the laser light image is limited by the spectral characteristic of the infrared cut filter 12 which limits the infrared region. Then, signal processing is performed by the video signal processing circuit 15, and the signal is input to the CRT monitor 16 and displayed together with the subject image.
このように、上記内視鏡装置はカラーテレビジョンカメ
ラを構成する固体撮像素子13の分光感度特性及び被写体
14に対して照明光を照射する光源装置19の分光特性を制
限する赤外カットフィルタ12を設け、被写体像とともに
前記レーザ光像を前記CRTモニター16に表示可能とした
ので、レーザ光を所定の位置に正確に照射するのが容易
となり、可及的に取扱い操作の確実化が促進される。As described above, the endoscope apparatus has the spectral sensitivity characteristics of the solid-state imaging device 13 and the subject which are included in the color television camera.
Since the infrared cut filter 12 that limits the spectral characteristic of the light source device 19 that illuminates the illuminating light with respect to 14 can be displayed on the CRT monitor 16 together with the subject image, the laser light image can be displayed with a predetermined laser light. It is easy to irradiate the position accurately, and as much as possible, the assurance of the handling operation is promoted.
なお、この発明は上記実施例に限ることなく、その外、
この発明の要旨を逸脱しない範囲で種々の変形を実施し
得ることはいうまでもないことである。The present invention is not limited to the above embodiment,
It goes without saying that various modifications can be made without departing from the scope of the present invention.
「発明の効果」 以上詳述したように、この発明によれば、レーザ光を所
定の位置に正確に照射でき、可及的に取扱い操作の確実
化を促進し得るようにし、また、危険が少ない内視鏡装
置を提供することができる。[Advantages of the Invention] As described in detail above, according to the present invention, it is possible to accurately irradiate a predetermined position with laser light, to promote the certainty of the handling operation as much as possible, and to prevent danger. It is possible to provide a small number of endoscope devices.
第１図はこの発明の一実施例に係る内視鏡装置を示す構
成説明図、第２図は第１図の固体撮像素子及び赤外カッ
トフィルタの分光特性を示す特性図、第３図は従来の内
視鏡装置を示す構成説明図、第４図はレーザ光の分光特
性，人間の視感度特性及びカラーテレビジョンカメラの
赤外カットフィルタの分光特性を示す特性図である。 10……内視鏡先端部、11……対物レンズ、12……赤外カ
ットフィルタ、13……固体撮像素子、14……被写体、15
……信号処理回路、16……CRTモニター、17……照明光
照射口、18……ライトライン、19……光源装置、20……
光源、21……熱線吸収ガラス、22……赤外カットフィル
タ、23……コンデンサレンズ、24……レーザ照射口、25
……レーザライン、26……レーザ発振装置。FIG. 1 is a structural explanatory view showing an endoscope apparatus according to an embodiment of the present invention, FIG. 2 is a characteristic view showing spectral characteristics of the solid-state image pickup element and the infrared cut filter of FIG. 1, and FIG. FIG. 4 is a configuration diagram showing a conventional endoscope apparatus, and FIG. 4 is a characteristic diagram showing spectral characteristics of laser light, human visual sensitivity characteristics, and spectral characteristics of an infrared cut filter of a color television camera. 10 ... End of endoscope, 11 ... Objective lens, 12 ... Infrared cut filter, 13 ... Solid-state image sensor, 14 ... Subject, 15
...... Signal processing circuit, 16 …… CRT monitor, 17 …… Illumination light irradiation port, 18 …… Light line, 19 …… Light source device, 20 ……
Light source, 21 ... Heat absorbing glass, 22 ... Infrared cut filter, 23 ... Condenser lens, 24 ... Laser irradiation port, 25
...... Laser line, 26 …… Laser oscillator.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｈ０４Ｎ 9/04 Ａ ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 6 Identification code Internal reference number FI technical display location H04N 9/04 A
Claims (1)
ンズと、 この対物レンズの光軸上に設けられ結像された被写体像
を光電変換する固体撮像素子と、 赤外域を含む光を発生する光源と、 この光源から発生された光を前記先端部から被写体に対
して照明光として照射する照明伝送路と、 前記先端部から前記被写体の一部に対して治療用のレー
ザ光を照射するレーザ発振装置と、 前記固体撮像素子の出力信号を信号処理回路に導く信号
伝送路とを具備し、 前記光源と前記照明伝送路との光路上の所定の位置に、
前記光源からの光に対して赤外域を制限する第１の赤外
カットフィルタと、 前記固体撮像素子と前記被写体との光路上の所定の位置
に、前記被写体からの前記照明光およびレーザ光の反射
光に対して可視域および前記レーザ光の帯域を許容し、
その他の赤外域を制限する第２の赤外カットフィルタを
配置したことを特徴とする内視鏡装置。1. An objective lens for imaging a subject, which is provided at a tip portion, a solid-state imaging device provided on the optical axis of the objective lens for photoelectrically converting a focused subject image, and light including an infrared region. A light source that emits light, an illumination transmission path that irradiates the subject with the light generated from the light source as illumination light, and a therapeutic laser beam from the tip to a part of the subject. A laser oscillating device for irradiating, and a signal transmission path for guiding the output signal of the solid-state imaging device to a signal processing circuit, and at a predetermined position on the optical path between the light source and the illumination transmission path,
A first infrared cut filter that limits the infrared region to the light from the light source; and the illumination light and laser light from the subject at a predetermined position on the optical path between the solid-state imaging device and the subject. Allowing the visible range and the band of the laser light for reflected light,
An endoscope apparatus having a second infrared cut filter for limiting other infrared regions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60269647A JPH0793931B2 (en) | 1985-11-30 | 1985-11-30 | Endoscope device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60269647A JPH0793931B2 (en) | 1985-11-30 | 1985-11-30 | Endoscope device |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4002580A Division JP2604084B2 (en) | 1992-01-10 | 1992-01-10 | Endoscope device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62129047A JPS62129047A (en) | 1987-06-11 |
| JPH0793931B2 true JPH0793931B2 (en) | 1995-10-11 |
Family
ID=17475260
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60269647A Expired - Lifetime JPH0793931B2 (en) | 1985-11-30 | 1985-11-30 | Endoscope device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0793931B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2750146B2 (en) * | 1989-04-12 | 1998-05-13 | オリンパス光学工業株式会社 | Laser endoscope system |
| JPH0323832A (en) * | 1989-06-22 | 1991-01-31 | Toshiba Corp | Electric endoscope apparatus |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60137342A (en) * | 1983-12-27 | 1985-07-20 | オリンパス光学工業株式会社 | Electronic scope |
| JPH0535374Y2 (en) * | 1984-12-28 | 1993-09-08 |
-
1985
- 1985-11-30 JP JP60269647A patent/JPH0793931B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62129047A (en) | 1987-06-11 |
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