JP2750153B2 - Endoscope - Google Patents
EndoscopeInfo
- Publication number
- JP2750153B2 JP2750153B2 JP1138912A JP13891289A JP2750153B2 JP 2750153 B2 JP2750153 B2 JP 2750153B2 JP 1138912 A JP1138912 A JP 1138912A JP 13891289 A JP13891289 A JP 13891289A JP 2750153 B2 JP2750153 B2 JP 2750153B2
- Authority
- JP
- Japan
- Prior art keywords
- tube
- branch
- insertion portion
- guide fiber
- connection
- 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 - Fee Related
Links
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は挿入部内に挿通された内蔵物、例えばライト
ガイドファイバ、イメージガイドファイバとチャンネル
チューブとを分岐部において分岐する内視鏡に関する。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an endoscope that branches a built-in component, for example, a light guide fiber, an image guide fiber, and a channel tube inserted into an insertion portion at a branch portion.
〔従来の技術〕 従来、血液等の不透明液で満たされた血管内や心臓内
を観察する場合、可撓性チューブからなる挿入部内に照
明光伝送用のライトガイドファイバ、画像伝送用のイメ
ージガイドファイバおよび観察領域の血液を一時的に排
除して透明な領域を形成するための生理食塩水を上記観
察領域に導くチャンネルチューブを備えた内視鏡が用い
られている。[Related Art] Conventionally, when observing the inside of a blood vessel or a heart filled with an opaque liquid such as blood, a light guide fiber for transmitting illumination light and an image guide for transmitting an image are provided in an insertion portion formed of a flexible tube. 2. Description of the Related Art An endoscope provided with a channel tube for guiding a physiological saline solution for forming a transparent area by temporarily removing a fiber and blood in an observation area to form the transparent area is used.
このような内視鏡においては、特開昭59−195216号公
報に示されているようにライトガイドファイバ、イメー
ジガイドファイバとチャンネルチューブとを挿入部の基
端部に接続された分岐部で分岐し、ライトガイドファイ
バおよびイメージガイドファイバはフニバーサルコード
を通じて光源装置、受像装置へ、またチャンネルチュー
ブは分岐部に設けられたチャンネル入口へと導かれてい
る。そして、従来の分岐部の構造は、同公報中第６図に
示されているように分岐部を縦方向に半割りにし、これ
ら分割片に設けられた溝にライトガイドファイバ、イメ
ージガイドファイバおよびチャンネルチューブを内挿し
た挿入部の基端部を嵌め込み、さらに上記ライトガイド
ファイバおよびイメージガイドファイバを挿入部と分岐
して別の溝に嵌め込んだ後、各分割片を接着剤とビスを
用いて嵌め合せて分岐部を組立てていた。In such an endoscope, as shown in JP-A-59-195216, a light guide fiber, an image guide fiber, and a channel tube are branched at a branch portion connected to a base end of an insertion portion. The light guide fiber and the image guide fiber are guided to a light source device and an image receiving device through a universal cord, and the channel tube is guided to a channel entrance provided at a branch portion. As shown in FIG. 6 of the publication, the conventional branch structure is such that the branch portion is divided in half in the vertical direction, and the light guide fiber, the image guide fiber and the light guide fiber are provided in the grooves provided in these divided pieces. After fitting the base end of the insertion section into which the channel tube was inserted, further branching the light guide fiber and the image guide fiber from the insertion section and fitting them into another groove, each divided piece was formed using an adhesive and a screw. The branch part was assembled by fitting.
しかしながら、上記従来の構造によれば、挿入部の基
端部を分岐部の各分割片に設けられた溝に単に嵌め込
み、各分割片を接着剤とビスで固定するだけだったの
で、これら挿入部と分岐部との接続部の水密性を完全，
確実に確保することができず、内視鏡の使用中、血液や
汚水が上記接続部に浸透し、内部のライトガイドファイ
バおよびイメージガイドファイバを劣化させて使用不能
となる問題があった。However, according to the above-described conventional structure, the base end of the insertion portion is simply fitted into the groove provided in each split piece of the branch portion, and each split piece is simply fixed with an adhesive and a screw. The watertightness of the connection between the section and the branch
There was a problem that it could not be ensured, and during use of the endoscope, blood and sewage permeated into the connecting portion, degrading the internal light guide fiber and image guide fiber and rendering them unusable.
本発明は上記事情に着目してなされたもので、分岐部
の接続部の水密性を完全，確実に確保でき、分岐部内へ
の液体の浸透による内蔵物の劣化をなくすことができる
内視鏡を提供することを目的とする。The present invention has been made in view of the above circumstances, and an endoscope capable of completely and surely ensuring watertightness of a connection portion of a branch portion and eliminating deterioration of a built-in component due to penetration of liquid into the branch portion. The purpose is to provide.
上記目的を達成するために、本発明においては、外皮
チューブ内に複数の内蔵物を挿通して挿入部を形成し、
この挿入部の基端部に上記内蔵物を分岐する樹脂製分岐
部を接続し、この分岐部に上記分岐された内蔵物を内挿
して外部へ導く接続チューブを接続した内視鏡におい
て、上記内蔵物、挿入部の外皮チューブおよび接続チュ
ーブの少なくとも上記分岐部と接触する部分をこの分岐
部と熱溶着可能な樹脂で形成する。これにより、チャン
ネルチューブ等の内蔵物、挿入部の外皮チューブおよび
接続チューブと分岐部とを液密に接続でき、分岐部内を
完全防水にすることができるようになる。In order to achieve the above object, in the present invention, an insertion portion is formed by inserting a plurality of internal components into an outer tube.
An endoscope in which a resin-made branching portion for branching the built-in component is connected to a base end portion of the insertion portion, and a connection tube for inserting the branched built-in component into the branching portion and leading it to the outside is connected. At least a portion of the internal member, the outer tube of the insertion portion, and the connection tube that comes into contact with the branch portion is formed of a resin that can be thermally welded to the branch portion. Thus, the built-in component such as the channel tube, the outer tube and the connection tube of the insertion portion, and the branch portion can be connected in a liquid-tight manner, and the inside of the branch portion can be completely waterproof.
以下、本発明の第１の実施例について第１図ないし第
７図を参照して説明する。Hereinafter, a first embodiment of the present invention will be described with reference to FIGS.
第２図は内視鏡の全体図であり、これは可撓性を有す
る長尺の外皮チューブ1a内に後述する複数の内蔵物を挿
通してなる挿入部１、この挿入部１の基端部に接続され
た略Ｙ字状の分岐部２、この分岐部２の基端部に接続さ
れた接続チュウーブ３、この接続チュウーブ３の延出端
に設けられた第１のコネクタ４、この第１のコネクタ４
に接続されたライトガイドケーブル５およびこのライト
ガイドケーブル５の延出端に設けられた第２のコネクタ
６からなる。FIG. 2 is an overall view of the endoscope, which is an insertion portion 1 in which a plurality of built-in objects, which will be described later, are inserted into a flexible long outer tube 1a, and a proximal end of the insertion portion 1. , A connection tube 3 connected to the base end of the branch 2, a first connector 4 provided at an extended end of the connection tube 3, 1 connector 4
And a second connector 6 provided at the extension end of the light guide cable 5.
上記挿入部１の外皮チューブ1a内には、第３図および
第４図に示すように内蔵物としての観察光学系７、チャ
ンネルチューブ８およびこれらを覆って照明光学系９が
挿通されており、挿入部１の先端面には観察部10、チャ
ンネル出口11および照明部12が形成されている。観察光
学系７はレンズ枠13内に複数の対物レンズ14およびイメ
ージガイドファイバ15の先端部を挿入固定してなり、こ
のイメージガイドファイバ15は挿入部１、分岐部２およ
び接続チュウーブ３を通じて第１のコネクタ４内まで導
かれ、この第１のコネクタ４を介して図示しないカメラ
制御部に接続されるようになっている。また、照明光学
系９は照明レンズ16の後側にライトガイドファイバ17を
配置してなり、このライトガイドファイバ17は挿入部
１、分岐部２、接続チュウーブ３、第１のコネクタ４お
よびライトガイドケーブル５を通じて第２のコネクタ６
内まで導かれ、この第２のコネクタ６を介して図示しな
い光源装置に接続されるようになっている。さらに、チ
ャンネルチューブ８は挿入部１を通じて分岐部２内まで
導かれ、この分岐部２においてライトガイドファイバ17
およびイメージガイドファイバ15と分岐して、分岐部２
の基端部に設けられたチャンネル入口18と連通してい
る。As shown in FIGS. 3 and 4, an observation optical system 7, a channel tube 8, and an illumination optical system 9 covering these are inserted into the outer tube 1a of the insertion portion 1, as shown in FIGS. An observation section 10, a channel outlet 11, and an illumination section 12 are formed on the distal end surface of the insertion section 1. The observation optical system 7 has a plurality of objective lenses 14 and the distal ends of image guide fibers 15 fixedly inserted into a lens frame 13. The image guide fibers 15 are firstly inserted through an insertion portion 1, a branch portion 2, and a connection tube 3. And is connected to a camera control unit (not shown) via the first connector 4. The illumination optical system 9 has a light guide fiber 17 disposed behind the illumination lens 16. The light guide fiber 17 includes the insertion section 1, the branch section 2, the connection tube 3, the first connector 4, and the light guide fiber. Second connector 6 through cable 5
And is connected to a light source device (not shown) via the second connector 6. Further, the channel tube 8 is guided into the branch portion 2 through the insertion portion 1, and the light guide fiber 17
And the image guide fiber 15 and branch 2
Communicates with a channel inlet 18 provided at the base end of the.
上記分岐部２は、第１図に示すように箱型保護部材19
と、この保護部材19を覆って型成形された樹脂製外装部
材20とから二重構造に形成されている。As shown in FIG. 1, the branch portion 2 includes a box-shaped protection member 19.
And a resin exterior member 20 that is molded to cover the protection member 19 to form a double structure.
すなわち、保護部材19はポリエチレン、ポリプロピレ
ン、液晶ポリマ等により、第５図に示すように縦方向に
半割りして２分割構成されており、その一方の分割片19
aの内壁には複数の嵌合凹部21が設けられ、他方の分割
片19bの内壁には第６図に示すように上記嵌合凹部21に
嵌合する複数の嵌合凸部22が設けられている。また、こ
れら分割片19a、19bの前壁および後壁には複数の半円形
の溝23が相対向して設けられており、各分割片19a、19b
を嵌め合せたときに互いの溝23が合致して円形の取付孔
が形成されるようになっている。さらに、一方の分割片
19aの内壁中央部にはチャンネルチューブ８の蛇行防止
用の位置決め突起29が設けられ、また各分割片19a、19b
の後壁には上記一部の溝23の周囲に位置してひけ防止用
の突起30が設けられている。That is, the protection member 19 is made of polyethylene, polypropylene, liquid crystal polymer, or the like, and is divided in half in the vertical direction as shown in FIG.
A plurality of fitting recesses 21 are provided on the inner wall of a, and a plurality of fitting projections 22 that fit into the fitting recess 21 are provided on the inner wall of the other divided piece 19b as shown in FIG. ing. A plurality of semicircular grooves 23 are provided on the front wall and the rear wall of each of the divided pieces 19a, 19b so as to face each other.
When the are fitted, the grooves 23 are aligned with each other to form a circular mounting hole. In addition, one split piece
A positioning protrusion 29 for preventing meandering of the channel tube 8 is provided at a central portion of the inner wall of 19a.
A protrusion 30 for preventing sink marks is provided on the rear wall around the part of the groove 23.
一方、挿入部１の外皮チューブ1aの基端部には第１の
接続口金24が取付けられ、また接続チューブ３の基端部
には第２の接続口金25が取付けられている。そして、例
えば一方の分割片19aの前壁の溝23に挿入部１の第１の
接続口金24を嵌め込むとともに、後壁の溝23の一方に接
続チューブ３の第２の接続口金25を嵌め込み、さらに第
１の接続口金24から延出するチャンネルチューブ８をラ
イトガイドファイバ17およびイメージガイドファイバ15
と分岐してそのまま真直ぐに後壁の溝23の他方に嵌め込
んだ後、一方の分割片19aの嵌合凹部21に他方の分割片1
9bの嵌合凸部22を差込んで嵌め合せることで、各分割片
19a、19bを仮固定してこれらの間に挿入部１、接続チュ
ーブ３およびチャンネルチューブ８を挟み込んで接続す
る。ここで、一方の分割片19aに位置決め突起29を設け
たので、チャンネルチューブ８は嵌合凹部21および嵌合
凸部22の一部と位置決め突起29との間に位置決めされ、
チャンネルチューブ８の保護部材19内での蛇行を防止で
きる。また、チャンネルチューブ８と接続チューブ３と
はおよそ20°の角度をもって接続固定される。On the other hand, a first connection base 24 is attached to the base end of the outer tube 1 a of the insertion section 1, and a second connection base 25 is attached to the base end of the connection tube 3. Then, for example, the first connection base 24 of the insertion portion 1 is fitted into the groove 23 of the front wall of one of the divided pieces 19a, and the second connection base 25 of the connection tube 3 is fitted into one of the grooves 23 of the rear wall. The channel tube 8 extending from the first connection base 24 is connected to the light guide fiber 17 and the image guide fiber 15.
And then straightly fitted into the other of the grooves 23 of the rear wall, and then into the fitting recess 21 of one of the divided pieces 19a, the other divided piece 1
By inserting and fitting the fitting protrusions 22 of 9b, each divided piece
19a and 19b are temporarily fixed, and the insertion portion 1, the connection tube 3 and the channel tube 8 are sandwiched and connected between them. Here, since the positioning protrusion 29 is provided on one of the divided pieces 19a, the channel tube 8 is positioned between the positioning recess 29 and a part of the fitting protrusion 22 and the positioning protrusion 29,
Meandering in the protection member 19 of the channel tube 8 can be prevented. The channel tube 8 and the connection tube 3 are connected and fixed at an angle of about 20 °.
このようにして保護部材19の各分割片19a、19bを仮固
定して挿入部１および接続チューブ３を接続したなら
ば、この保護部材19を、第７図に示すように上型26aと
下型26bとに形成された外装部材20の外観形状をなす凹
部27に設置し、湯口28からポリエチレン、ポリウレタ
ン、ポリエステル等の樹脂を流し込むことで、保護部材
19を覆って外装部材20が一体成形されるようになってい
る。ここで、保護部材19はその外側全体に被覆された外
装部材20の樹脂材がライトガイドファイバ17、イメージ
ガイドファイバ15およびチャンネルチューブ８等の内蔵
物に直接、接触することのないように上記内蔵物を保護
している。また、各分割片19a、19bに突起30を設けたの
で、この突起30の周辺の樹脂材のひけを防止できる。When the divided portions 19a and 19b of the protection member 19 are temporarily fixed in this way and the insertion portion 1 and the connection tube 3 are connected, the protection member 19 is connected to the upper mold 26a and the lower die 26a as shown in FIG. The protective member is installed in a recess 27 that forms the external shape of the exterior member 20 formed on the mold 26b, and a resin such as polyethylene, polyurethane, or polyester is poured from a gate 28.
The exterior member 20 is integrally formed so as to cover the 19. Here, the protective member 19 is provided so as to prevent the resin material of the outer member 20 covering the entire outside thereof from coming into direct contact with the internal components such as the light guide fiber 17, the image guide fiber 15, and the channel tube 8. Protecting things. Further, since the projections 30 are provided on each of the divided pieces 19a and 19b, sink of the resin material around the projections 30 can be prevented.
ここで、挿入部１の外皮チューブ1a、接続チューブ３
およびチャンネルチューブ８はそれぞれ全体が外装部材
20の樹脂材と熱溶着可能な樹脂、例えばポリエチレン、
ポリウレタン、ポリエステル等によって形成されてお
り、外装部材20の成形時、これら挿入部１の外皮チュー
ブ1a、接続チューブ３およびチャンネルチューブ８と外
装部材20とが熱溶着するようになっている。なお、保護
部材19は外装部材20よりも融解温度の高い樹脂（上述）
で形成されており、外装部材10の成形時に熱変形や溶融
することはない。Here, the outer tube 1a of the insertion portion 1, the connection tube 3
And the channel tube 8 are all exterior members
20 resin material and heat-sealable resin, for example, polyethylene,
It is made of polyurethane, polyester, or the like. When the exterior member 20 is formed, the exterior member 20 and the outer tube 1a, the connection tube 3, and the channel tube 8 of the insertion portion 1 are heat-welded. The protective member 19 is made of a resin having a higher melting temperature than the exterior member 20 (described above)
And is not deformed or melted when the exterior member 10 is molded.
このような構造によれば、挿入部１の外皮チューブ1
a、接続チューブ３およびチャンネルチューブ８の全体
を分岐部２の外装部材20の樹脂材と熱溶着可能な樹脂で
形成したから、これら挿入部１の外皮チューブ1a、接続
チューブ３およびチャンネルチューブ８と外装部材20と
を液密に接続でき、その接続部の水密性を完全，確実に
確保することができる。したがって、分岐部２内を完全
防水にすることができ、内視鏡の使用中、血液や汚水が
上記接続部に浸透して内部のライトガイドファイバ17お
よびイメージガイドファイバ15を劣化、破損、機能を低
下させることを防止できる。According to such a structure, the outer tube 1 of the insertion section 1
a, the entirety of the connection tube 3 and the channel tube 8 is formed of a resin which can be thermally welded to the resin material of the exterior member 20 of the branch portion 2, so that the outer tube 1 a of the insertion portion 1, the connection tube 3, the channel tube 8 and The outer member 20 can be connected in a liquid-tight manner, and the water-tightness of the connection can be completely and reliably ensured. Therefore, the inside of the branch portion 2 can be made completely waterproof, and during use of the endoscope, blood or sewage penetrates into the connection portion to deteriorate, break, or function the light guide fiber 17 and the image guide fiber 15 therein. Can be prevented from decreasing.
第８図および第９図は本発明の第２の実施例を示す。 FIGS. 8 and 9 show a second embodiment of the present invention.
この実施例は挿入部１の外皮チューブ1a、接続チュー
ブ３およびチャンネルチューブ８における分岐部２の外
装部材20との接触部、つまり挿入部１の外皮チューブ1a
の基端部から第１の接続口金24にかけて、接続チューブ
３の基端部およびチャンネルチューブ８の基端部にそれ
ぞれポリオレフィン、PVC、ポリフッ化ビニリデン、ポ
リエチレン等からなる熱溶着性の樹脂管45を接着剤等で
固着したものである。そして、外装部材20の成形時、こ
れら挿入部１の外皮チューブ1a、接続チューブ３および
チャンネルチューブ８の樹脂管45と外装部材20とが熱溶
着するようになっている。なお、その他の基本構成およ
び作用、効果は上記第１の実施例と同様である。In this embodiment, the outer tube 1a of the insertion section 1, the contact tube 3 and the channel tube 8 are in contact with the outer member 20 of the branch section 2, that is, the outer tube 1a of the insertion section 1.
A heat-welding resin tube 45 made of polyolefin, PVC, polyvinylidene fluoride, polyethylene, or the like is connected to the base end of the connection tube 3 and the base end of the channel tube 8 from the base end of the first connection base 24 to the base end of the connection tube. It is fixed with an adhesive or the like. When the exterior member 20 is formed, the resin tube 45 of the outer tube 1a, the connection tube 3 and the channel tube 8 of the insertion portion 1 and the exterior member 20 are thermally welded. The other basic configuration, operation, and effects are the same as those in the first embodiment.
第10図および第11図は本発明の第３の実施例を示す。 FIGS. 10 and 11 show a third embodiment of the present invention.
この実施例はイメージガイドファイバ15に代えてCCD3
1を挿入部１の先端部に挿入固定されたレンズ枠13の後
端面に配置したものである。そして、観察領域の映像を
対物レンズ14でCCD31上に結像させ、このCCD31で電気信
号に変換し、この電気信号をCCD31から挿入部１、分岐
部２およびユニバーサルコード３を通じて第１のコネク
タ４内まで導かれた信号線32を介してカメラ制御部に伝
送されるようになっている。なお、その他の基本構成お
よび作用，効果は上記第１の実施例と同様である。This embodiment uses a CCD3 instead of the image guide fiber 15.
1 is disposed on the rear end face of the lens frame 13 inserted and fixed to the distal end of the insertion section 1. Then, an image of the observation area is formed on the CCD 31 by the objective lens 14, converted into an electric signal by the CCD 31, and the electric signal is converted from the CCD 31 through the insertion unit 1, the branch unit 2 and the universal cord 3 to the first connector 4. The signal is transmitted to the camera control unit via a signal line 32 guided to the inside. The other basic configuration, operation, and effects are the same as those of the first embodiment.
第12図は本発明の第４の実施例を示す。 FIG. 12 shows a fourth embodiment of the present invention.
この実施例は上記第１の実施例において、ユニバーサ
ルコード３の延出端に設けられた第１のコネクタ４にア
ダプタ35を着脱自在に取付けたものである。このよう
に、第１のコネクタ４にアダプタ35を取付けることで、
このアダプタ35を介しての肉眼観察の他、アダプタ35に
TVカメラやシネカメラ等の撮影装置を取付けることで、
TV観察やシネ撮影が可能となる。This embodiment differs from the first embodiment in that an adapter 35 is detachably attached to a first connector 4 provided at the extending end of the universal cord 3. Thus, by attaching the adapter 35 to the first connector 4,
In addition to visual observation via this adapter 35, the adapter 35
By installing shooting devices such as TV cameras and cine cameras,
TV observation and cine shooting are possible.
第13図は本発明の第５の実施例を示す。 FIG. 13 shows a fifth embodiment of the present invention.
この実施例は第１のコネクタ４に接眼部41を取付けた
ものである。このようにしても、接眼部41を介しての肉
眼観察の他、接眼部41にTVカメラやシネカメラ等の撮影
装置を取付けることで、TV観察やシネ撮影が可能とな
る。In this embodiment, an eyepiece 41 is attached to the first connector 4. Even in this case, in addition to the naked eye observation through the eyepiece 41, the TV observation and the cine imaging can be performed by attaching a photographing device such as a TV camera or a cine camera to the eyepiece 41.
以上述べたように、本発明によれば、チャンネルチュ
ーブ等の内蔵物、挿入部の外皮チューブおよび接続チュ
ーブの少なくとも分岐部と接触する部分をこの分岐部と
熱溶着可能な樹脂で形成したから、これら内蔵物、挿入
部の外皮チューブおよび接続チューブと分岐部とを液密
に接続でき、その接続部の水密性を完全，確実に確保す
ることができる。したがって、分岐部内を完全防水にす
ることができ、内視鏡の使用中、血液や汚水が上記接続
部に浸透して内部のライトガイドファイバおよびイメー
ジガイドファイバ等の内蔵物を劣化、破損、機能を低下
させることを防止できるものである。As described above, according to the present invention, at least the portion of the internal tube such as the channel tube, which is in contact with the branch portion of the outer tube and the connection tube of the insertion portion, is formed of a resin that can be thermally welded to the branch portion. These internal components, the outer tube and connecting tube of the insertion portion and the branch portion can be connected in a liquid-tight manner, and the water-tightness of the connection portion can be completely and reliably ensured. Therefore, the inside of the branch portion can be completely waterproof, and during use of the endoscope, blood or sewage penetrates into the connection portion to deteriorate, break, or function the internal light guide fibers and image guide fibers. Can be prevented from decreasing.
第１図は本発明の第１の実施例を示す分岐部の縦断面
図、第２図は同じく内視鏡全体の側面図、第３図は同じ
く挿入部の正面図、第４図は同じく挿入部先端の縦断面
図、第５図は同じく保護部材の分解斜視図、第６図は同
じく保護部材の一部拡大断面図、第７図は成形型の分解
斜視図、第８図は本発明の第２の実施例を示す分岐部の
縦断面図、第９図は同じく保護部材の分解斜視図、第10
図は本発明の第３の実施例を示す挿入部の正面図、第11
図は同じく挿入部先端の縦断面図、第12図は本発明の第
４の実施例を示す内視鏡全体の側面図、第13図は本発明
の第５の実施例を示す内視鏡全体の側面図である。 １…挿入部、1a…外皮チューブ、２…分岐部、３…接続
チューブ、８…チャンネルチューブ、15…イメージガイ
ドファイバ、17…ライトガイドファイバ、45…樹脂管。FIG. 1 is a longitudinal sectional view of a branch portion showing a first embodiment of the present invention, FIG. 2 is a side view of the entire endoscope, FIG. 3 is a front view of the same insertion portion, and FIG. FIG. 5 is an exploded perspective view of the same protective member, FIG. 6 is a partially enlarged sectional view of the same protective member, FIG. 7 is an exploded perspective view of a molding die, and FIG. FIG. 9 is a longitudinal sectional view of a branch portion showing a second embodiment of the invention, FIG.
FIG. 11 is a front view of an insertion portion showing a third embodiment of the present invention, and FIG.
FIG. 12 is a longitudinal sectional view of the distal end of the insertion portion, FIG. 12 is a side view of the entire endoscope showing a fourth embodiment of the present invention, and FIG. 13 is an endoscope showing a fifth embodiment of the present invention. It is the whole side view. DESCRIPTION OF SYMBOLS 1 ... Insertion part, 1a ... Outer tube, 2 ... Branch part, 3 ... Connection tube, 8 ... Channel tube, 15 ... Image guide fiber, 17 ... Light guide fiber, 45 ... Resin tube.
Claims (1)
なる挿入部と、この挿入部の基端部に接続され上記内蔵
物を分岐する樹脂製分岐部と、この分岐部に接続され上
記分岐され内蔵物を内挿して外部へ導く接続チューブと
を具備した内視鏡において、上記内蔵物、挿入部の外皮
チューブおよび接続チューブの少なくとも上記分岐部と
接触する部分をこの分岐部と熱溶着可能な樹脂で形成し
たことを特徴とする内視鏡。1. An insertion portion formed by inserting a plurality of built-in components into an outer tube, a resin branch portion connected to a base end of the insertion portion and branching the built-in component, and connected to the branch portion. In the endoscope provided with the connection tube for inserting the branched internal part and guiding the internal part to the outside, at least a portion of the internal part, the outer tube of the insertion portion, and the connection tube that comes into contact with the branch part is connected to the branch part by heat. An endoscope formed of a weldable resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1138912A JP2750153B2 (en) | 1989-05-31 | 1989-05-31 | Endoscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1138912A JP2750153B2 (en) | 1989-05-31 | 1989-05-31 | Endoscope |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH034830A JPH034830A (en) | 1991-01-10 |
| JP2750153B2 true JP2750153B2 (en) | 1998-05-13 |
Family
ID=15233049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1138912A Expired - Fee Related JP2750153B2 (en) | 1989-05-31 | 1989-05-31 | Endoscope |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2750153B2 (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8888688B2 (en) | 2000-04-03 | 2014-11-18 | Intuitive Surgical Operations, Inc. | Connector device for a controllable instrument |
| US8517923B2 (en) | 2000-04-03 | 2013-08-27 | Intuitive Surgical Operations, Inc. | Apparatus and methods for facilitating treatment of tissue via improved delivery of energy based and non-energy based modalities |
| US6468203B2 (en) | 2000-04-03 | 2002-10-22 | Neoguide Systems, Inc. | Steerable endoscope and improved method of insertion |
| US6610007B2 (en) | 2000-04-03 | 2003-08-26 | Neoguide Systems, Inc. | Steerable segmented endoscope and method of insertion |
| KR100580368B1 (en) * | 2000-09-09 | 2006-05-16 | 지문수 | hand steel saw frame system |
| US6770027B2 (en) | 2001-10-05 | 2004-08-03 | Scimed Life Systems, Inc. | Robotic endoscope with wireless interface |
| US6835173B2 (en) | 2001-10-05 | 2004-12-28 | Scimed Life Systems, Inc. | Robotic endoscope |
| US6679836B2 (en) | 2002-06-21 | 2004-01-20 | Scimed Life Systems, Inc. | Universal programmable guide catheter |
| KR101707924B1 (en) | 2008-02-06 | 2017-02-17 | 인튜어티브 서지컬 오퍼레이션즈 인코포레이티드 | A segmented instrument having braking capabilities |
| JP5117263B2 (en) * | 2008-04-11 | 2013-01-16 | オリンパスメディカルシステムズ株式会社 | Endoscope system |
| WO2018167968A1 (en) * | 2017-03-17 | 2018-09-20 | オリンパス株式会社 | Optical device for blood vessel and optical system for blood vessel |
-
1989
- 1989-05-31 JP JP1138912A patent/JP2750153B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH034830A (en) | 1991-01-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2750153B2 (en) | Endoscope | |
| US5305736A (en) | Distal end part of endoscope | |
| US4762120A (en) | Endoscopic device having handle assembly and catheter assembly | |
| US20070213591A1 (en) | Disposable Cap for Endoscope | |
| EP1371321A1 (en) | Electronic endoscope for stereoscopic endoscopy | |
| CA2007820C (en) | Sterilizable video camera cover | |
| JPH0143688Y2 (en) | ||
| US20200100662A1 (en) | Method for manufacture of a tip part and a tip part for an endoscope | |
| US20160206188A1 (en) | Visualization instrument | |
| US5688221A (en) | Endoscope cover for endoscope system having uniform flexibility | |
| JP3001035B2 (en) | Optical adapter for endoscope | |
| JP2799185B2 (en) | Endoscope | |
| US11432714B2 (en) | Method for manufacture of a tip part and a tip part for an endoscope | |
| US10512390B2 (en) | Endoscope with cable link structure | |
| JP2013075029A (en) | Imaging unit and camera module for endoscope | |
| JP2848571B2 (en) | Endoscope device | |
| JPS63281115A (en) | Optical connector | |
| JPH0636085B2 (en) | Endoscope | |
| JP2942396B2 (en) | Endoscope tip | |
| JP3076655B2 (en) | Light guide connector device for endoscope | |
| JPH07171091A (en) | Front end of endoscope | |
| JP3470999B2 (en) | Advanced structure of stereoscopic endoscope | |
| JP2000258698A (en) | Stereoscopic vision endoscope | |
| JPS644088Y2 (en) | ||
| JP2015131121A (en) | endoscope imaging unit and camera module |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090220 Year of fee payment: 11 |
|
| LAPS | Cancellation because of no payment of annual fees |