JPH02193635A - Bent structure of light guide body for endoscope - Google Patents
Bent structure of light guide body for endoscopeInfo
- Publication number
- JPH02193635A JPH02193635A JP1013537A JP1353789A JPH02193635A JP H02193635 A JPH02193635 A JP H02193635A JP 1013537 A JP1013537 A JP 1013537A JP 1353789 A JP1353789 A JP 1353789A JP H02193635 A JPH02193635 A JP H02193635A
- Authority
- JP
- Japan
- Prior art keywords
- light guide
- guide body
- endoscope
- cover body
- main body
- 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.)
- Granted
Links
- 238000005452 bending Methods 0.000 claims abstract description 5
- 238000005286 illumination Methods 0.000 claims description 3
- 238000005336 cracking Methods 0.000 abstract description 2
- 238000004140 cleaning Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000013307 optical fiber Substances 0.000 description 3
- 230000037431 insertion Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 239000000088 plastic resin Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229910052724 xenon Inorganic materials 0.000 description 1
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Instruments For Viewing The Inside Of Hollow Bodies (AREA)
- Endoscopes (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、内視鏡に係り、特に光源部側からの光を内
視鏡本体側に向けて導光するライトガイド体の彎曲構造
に関するものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an endoscope, and particularly to a curved structure of a light guide body that guides light from a light source side toward an endoscope body side. It is something.
内視鏡には、生体内の患部や機械奥部のような暗い被写
体を観察することができるよう、内視鏡本体とは別にキ
セノンランプやハロゲンランプ等の光源を設けた専用の
光源部を備えており、その光源部からの光を内視鏡本体
の先端部側まで導光させ、その先端部側に設けた照明窓
から被写体に向けて照射・照明させるようになっている
。The endoscope has a dedicated light source section that is equipped with a light source such as a xenon lamp or halogen lamp, separate from the endoscope body, so that it can observe dark objects such as diseased parts of the body or deep parts of the machine. The light from the light source section is guided to the distal end side of the endoscope body, and is irradiated and illuminated toward the subject through an illumination window provided at the distal end side.
そこで、この内視鏡には、例えば第4図に示すように、
内視鏡本体100基端側の操作部100aと光源部10
1との間を光学的に接続させて光源からの光を内視鏡本
体100側に伝送させるため、光学繊維束を内部に配設
した軟性のライトガイド体102が、本体100基端側
の側方に突出させた状態で取付けられている。Therefore, for example, as shown in Fig. 4, this endoscope has
The operating section 100a and the light source section 10 on the proximal end side of the endoscope main body 100
1 and transmit the light from the light source to the endoscope main body 100 side, a flexible light guide body 102 with an optical fiber bundle disposed inside the light guide body 102 is attached to the base end side of the main body 100. It is attached so that it protrudes to the side.
ところで、一般にこのような内視鏡にあっては、本体基
端側操作部に設けた接眼部に目を当てがいながら観察す
るようになっている。また、本体先端側に固体撮像素子
(COD)を取付けたタイプの内視鏡についても、同様
の操作を行うようになっており、このため何れのタイプ
の内視鏡についても、挿入部の挿入動作等を考慮すると
、どうしても本体基端部を直立させたり水平方向まで起
こす等のホールド操作を行うことになる。By the way, in such an endoscope, the user generally observes the object while placing the eye on the eyepiece provided on the operation section on the proximal end of the main body. In addition, similar operations are performed for endoscopes with a solid-state image sensor (COD) attached to the distal end of the main body, so for any type of endoscope, the insertion tube Considering the operation, etc., it is inevitable to perform a holding operation such as raising the base end of the main body upright or horizontally.
ところが、このような内視鏡にあっては、例えば先のよ
うなホールド操作を行いながら操作者が被写体を観察す
るときに、挿入部基端側の側方から大きく彎曲した状態
で突出するライトガイド体102が操作者の体に接触す
る等して邪魔になり、操作性が悪い。しかも、特に第4
図に示すように、その本体100基端側を直立させた状
態に保持しながら観察する場合には、ライトガイド体1
02がより大きな曲率半径で彎曲するので、本体基端側
外周面から略直角に直立し−た状態で設けたカバー体1
03の一部に応力が集中して作用し弛みや亀裂等を生じ
たり、ライトガイド体102が損傷したり、或いはこれ
ら双方の間に大きな隙間が形成される虞れもある。However, with such an endoscope, when the operator observes a subject while performing the above-mentioned hold operation, the light that protrudes in a greatly curved state from the side of the proximal end of the insertion tube. The guide body 102 comes into contact with the operator's body and becomes a hindrance, resulting in poor operability. Moreover, especially the fourth
As shown in the figure, when observing while holding the proximal end of the main body 100 in an upright state, the light guide body 1
02 is curved with a larger radius of curvature, the cover body 1 is provided in a state that stands upright at a substantially right angle from the outer peripheral surface on the proximal end side of the main body.
There is a risk that stress will concentrate on a portion of the light guide 102, causing loosening or cracking, damaging the light guide body 102, or forming a large gap between the two.
即ち、この発明は、本体外に設けた光源部からの光をラ
イトガイド体を介して本体基端側操作部の接続部から本
体内部に取り入れ、本体先端部に設けた照明窓から被写
体に向けて照射する内視鏡において、前記本体側の接続
部に、一定方向に彎曲したカバー体をライトガイド体を
外挿するようにして取付け、そのライトガイド体に一定
方向の、曲げ癖を付与したものである。That is, this invention takes light from a light source provided outside the main body into the main body from the connection part of the operating part on the proximal end of the main body via the light guide body, and directs it toward the subject through the illumination window provided at the distal end of the main body. In the endoscope that emits light, a cover body curved in a certain direction is attached to the connection part on the main body side so that the light guide body is extrapolated, and the light guide body is given a bending tendency in a certain direction. It is something.
この発明の内視鏡のライトガイド彎曲構造は、一定方向
に彎曲したカバー体によってライトガイド体が案内され
ながら無理なく彎曲し、換言すればライトガイド体が本
体基端側に対して小さな曲率半径でも無理なく彎曲させ
ることができ、しかもこのライトガイド体及びカバー体
の彎曲動作に対してこれら双方には応力の集中等がなく
弛みゃ亀裂等の発生が防止できる。The light guide curved structure of the endoscope of the present invention allows the light guide body to curve smoothly while being guided by the cover body curved in a certain direction.In other words, the light guide body has a small radius of curvature with respect to the base end side of the main body. However, the light guide body and the cover body can be bent easily, and there is no concentration of stress on both the light guide body and the cover body during the bending operation, and the occurrence of cracks or the like if they become slack can be prevented.
(実施例〕
以下、この考案の実施例について添付図面を参照しなが
ら説明する。(Example) Hereinafter, an example of this invention will be described with reference to the accompanying drawings.
第1図及び第2図はこの発明に係る内視鏡のライトガイ
ド彎曲構造を示すものであり、このライトガイド彎曲構
造は、内視鏡本体1基端側の操作部外周面に対し略垂直
に突設した接続部faに回動自在に取付けられ所定方向
に彎曲したカバー体2が使用されている。1 and 2 show a light guide curved structure of an endoscope according to the present invention, and this light guide curved structure is approximately perpendicular to the outer peripheral surface of the operating section on the proximal end side of the endoscope main body 1. A cover body 2 is used, which is rotatably attached to a connecting portion fa protruding from and curved in a predetermined direction.
なお、図中符号3は光源部(回路)側と内視鏡本体1側
とを光学的に接続する光学繊維束を内部に配設した可撓
性を有するライトガイド体を示すものである。Note that the reference numeral 3 in the figure indicates a flexible light guide body in which an optical fiber bundle is disposed for optically connecting the light source section (circuit) side and the endoscope main body 1 side.
接続部1aには、カバー体2及びライトガイド体3を軸
線βを中心として回転させると共にライトガイド体3を
所望の角度に回動させた状態で固定させるため、固定ネ
ジ4に螺合する雌ネジ部1b及び止め具5の回動突起5
aが嵌合する溝1cが形成されている。また、この接続
部1aには、使用後の洗浄の際洗浄液が入り込まないよ
うシール用の0リング6が設けられている。The connecting portion 1a has a female screw that is screwed into the fixing screw 4 in order to rotate the cover body 2 and the light guide body 3 around the axis β and to fix the light guide body 3 in a state where it is rotated at a desired angle. Threaded portion 1b and rotation protrusion 5 of stopper 5
A groove 1c into which a fits is formed. Further, this connecting portion 1a is provided with a sealing O-ring 6 to prevent cleaning liquid from entering during cleaning after use.
カバー体2は、予め所定方向に彎曲した状態で、即ち下
方側に載置した光源部に向けて無理なく彎曲させた状態
で、かつ内方側をライトガイド体3が嵌挿できるように
略管状に形成されており、ゴム等の材料で成形されて基
端側に止め具5を固着したものから構成されている。そ
して、この実施例のカバー体2は、止め具5側の回動孔
5aに挿通させたネジ4によって接続部la側に回動自
在に、或いは所望の角度に回動させた状態で固定させる
ことができるようになっている。なお、このカバー体2
としては、ゴム等の材料の他にプラスチック樹脂等で成
形しても良い。The cover body 2 is bent in a predetermined direction in advance, that is, in a state in which it is comfortably curved toward the light source placed on the lower side, and the cover body 2 is arranged so that the light guide body 3 can be inserted into the inner side thereof. It has a tubular shape, is made of a material such as rubber, and has a stopper 5 fixed to its base end. The cover body 2 of this embodiment is fixed to the connecting part la side by a screw 4 inserted through a rotation hole 5a on the stopper 5 side, or in a state where it is rotated at a desired angle. It is now possible to do so. In addition, this cover body 2
In addition to materials such as rubber, it may also be molded from plastic resin or the like.
ライトガイド体3は、中心側に光学繊維束が配設されて
いると共にその外周面側に保護部が設けられている。そ
して、その保護部は可撓性を有するものによって形成さ
れており、内視鏡本体1基端側の接続部1aから光源部
までを接続するようになっている。そして、この実施例
の保護部は、カバー体2に内挿されている部分等が予め
そのカバー体2と路間−の曲率半径に彎曲された形状に
成形された構造となっており、内視鏡本体1をホ−ルド
するときの操作が一層スムーズに行えるようになってい
る。The light guide body 3 has an optical fiber bundle disposed on the center side and a protective portion on the outer circumference side. The protective portion is made of a flexible material, and connects the connecting portion 1a on the proximal end side of the endoscope main body 1 to the light source portion. The protection part of this embodiment has a structure in which the portion inserted into the cover body 2 is previously formed into a shape curved to the radius of curvature between the cover body 2 and the path. The operation when holding the endoscope body 1 can be performed even more smoothly.
したがって、この実施例によれば、内視鏡本体1のホー
ルド操作の際、操作者の位置や姿勢に応じて第2図に示
すようにカバー体2を左右に随時回動させ、固定ネジ4
によって締付は固定すると、最良の回動角度にライトガ
イド体3を配置することができる。Therefore, according to this embodiment, when holding the endoscope main body 1, the cover body 2 is rotated from side to side as shown in FIG. 2 according to the position and posture of the operator, and the fixing screws 4
By fixing the tightening, the light guide body 3 can be placed at the best rotation angle.
次に、この発明の係る他の実施例の内視鏡のライトガイ
ド彎曲構造について第4図を参照しながら説明する。Next, a light guide curved structure of an endoscope according to another embodiment of the present invention will be described with reference to FIG.
この実施例のライトガイド彎曲構造は、内視鏡本体7側
の接続部7aが使用状態を考慮して下方に傾斜した状態
で突設されていると共に、その接続部7aに彎曲した形
状のカバー体8が固定ネジ9によって回動自在に取付け
られている。In the light guide curved structure of this embodiment, a connecting portion 7a on the side of the endoscope main body 7 is protruded in a downwardly inclined state in consideration of usage conditions, and a cover with a curved shape is attached to the connecting portion 7a. A body 8 is rotatably attached by fixing screws 9.
したがって、この実施例によれば、ライトガイド体IO
が内視鏡本体7に対して先の実施例のものよりも一層小
さな曲率半径に無理な(彎曲された状態で取付けられて
おり、狭いスペースでの使用が−M容易である。Therefore, according to this embodiment, the light guide body IO
is attached to the endoscope body 7 in a curved state with a smaller radius of curvature than those of the previous embodiments, making it easy to use in narrow spaces.
また、この実施例によれば、洗浄液を湛えた洗浄槽内に
ライトガイド体10を例えばスパイラル状に巻き回した
状態でコンパクトに収納し、その洗浄を行うような場合
には、洗浄槽が一層小さなもので済む。Furthermore, according to this embodiment, when the light guide body 10 is stored in a cleaning tank filled with cleaning liquid in a compact manner, for example, in a spirally wound state, and the cleaning tank is cleaned, the cleaning tank becomes more compact. A small one will suffice.
以上説明してきたように、この発明に係る内視鏡のライ
トガイド彎曲構造によれば、ライトガイド体がカバー体
にガイドされ無理なく小さな曲率半径に彎曲させること
ができるようになっており、操作者の位置や姿勢等に応
じて所望の方向にコンパクトに彎曲させることができる
ため、内視鏡本体をホールドする際にライトガイド体に
邪魔されることがなく、操作性が格段と向上すると共に
、カバー体やライトガイド体の損傷等が有効に防止でき
信頼度も向上する。As explained above, according to the light guide curved structure of the endoscope according to the present invention, the light guide body is guided by the cover body and can be curved to a small radius of curvature without difficulty, making it easy to operate. Since it can be compactly bent in the desired direction depending on the position and posture of the user, it is not obstructed by the light guide body when holding the endoscope body, which greatly improves operability. , damage to the cover body and light guide body can be effectively prevented and reliability can be improved.
また、この発明に係る内視鏡のライトガイド体彎曲構造
によれば、カバー体によってライトガイド体が無理なく
コンパクトにまとめられるため、保管時や洗浄時のスペ
ースも小さくて済む等の効果もある。Furthermore, according to the curved structure of the light guide body of the endoscope according to the present invention, the light guide body can be easily and compactly packed by the cover body, so there are also effects such as requiring less space during storage and cleaning. .
第1図はこの発明に係る内視鏡のう、イトガイド体彎曲
構造を示す断面図、第2図はこの発明に係る内視鏡のラ
イトガイド体彎曲構造の作用を説明するための路線図、
第3図はこの発明に係る内視鏡のライトガイド体彎曲構
造の他の実施例を示す側面図、第4図は従来の内視鏡の
ライトガイド体等を示す側面図である。
1、 7・・・本 体、
3.10・・・ライトガイド体、
2、 8・・・カバー体。
ム
第 1 図FIG. 1 is a sectional view showing the curved structure of the light guide body of the endoscope according to the present invention, and FIG. 2 is a route diagram for explaining the operation of the curved structure of the light guide body of the endoscope according to the present invention.
FIG. 3 is a side view showing another embodiment of the curved structure of the light guide body of an endoscope according to the present invention, and FIG. 4 is a side view showing the light guide body of a conventional endoscope. 1, 7...Main body, 3.10...Light guide body, 2, 8...Cover body. Figure 1
Claims (1)
介して本体基端側操作部の接続部から本体内部に取り入
れ、本体先端部に設けた照明窓から被写体に向けて照射
する内視鏡において、前記本体側の接続部に、一定方向
に彎曲したカバー体をライトガイド体を外挿するように
して取付け、そのライトガイド体に一定方向の曲げ癖を
付与したことを特徴とする内視鏡のライトガイド体彎曲
構造。 2、カバー体が本体側接続部に対して回動自在に取付け
られたことを特徴とする請求項1に記載の内視鏡のライ
トガイド体彎曲構造。[Claims] 1. Light from a light source provided outside the main body is introduced into the main body from the connection part of the operation part on the proximal end of the main body through a light guide, and the light is illuminated through the illumination window provided at the distal end of the main body. In an endoscope that emits light toward a target, a cover body curved in a certain direction is attached to the connection part on the main body side so as to extend the light guide body, and the light guide body is given a bending tendency in a certain direction. The light guide body of the endoscope has a curved structure. 2. The light guide body curved structure of an endoscope according to claim 1, wherein the cover body is rotatably attached to the main body side connection part.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1013537A JP2706695B2 (en) | 1989-01-23 | 1989-01-23 | Light guide body bending structure of endoscope |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1013537A JP2706695B2 (en) | 1989-01-23 | 1989-01-23 | Light guide body bending structure of endoscope |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH02193635A true JPH02193635A (en) | 1990-07-31 |
JP2706695B2 JP2706695B2 (en) | 1998-01-28 |
Family
ID=11835906
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1013537A Expired - Fee Related JP2706695B2 (en) | 1989-01-23 | 1989-01-23 | Light guide body bending structure of endoscope |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2706695B2 (en) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53163998U (en) * | 1977-05-31 | 1978-12-22 | ||
JPS55137604U (en) * | 1979-03-22 | 1980-10-01 | ||
JPS56106703U (en) * | 1980-01-17 | 1981-08-19 | ||
JPS5861203U (en) * | 1981-10-21 | 1983-04-25 | オリンパス光学工業株式会社 | Endoscope |
-
1989
- 1989-01-23 JP JP1013537A patent/JP2706695B2/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53163998U (en) * | 1977-05-31 | 1978-12-22 | ||
JPS55137604U (en) * | 1979-03-22 | 1980-10-01 | ||
JPS56106703U (en) * | 1980-01-17 | 1981-08-19 | ||
JPS5861203U (en) * | 1981-10-21 | 1983-04-25 | オリンパス光学工業株式会社 | Endoscope |
Also Published As
Publication number | Publication date |
---|---|
JP2706695B2 (en) | 1998-01-28 |
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