JP2943562B2 - Endoscope treatment instrument insertion channel connection - Google Patents
Endoscope treatment instrument insertion channel connectionInfo
- Publication number
- JP2943562B2 JP2943562B2 JP5139907A JP13990793A JP2943562B2 JP 2943562 B2 JP2943562 B2 JP 2943562B2 JP 5139907 A JP5139907 A JP 5139907A JP 13990793 A JP13990793 A JP 13990793A JP 2943562 B2 JP2943562 B2 JP 2943562B2
- Authority
- JP
- Japan
- Prior art keywords
- flexible tube
- connecting pipe
- adhesive
- fixing ring
- treatment instrument
- 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
Landscapes
- Endoscopes (AREA)
- Instruments For Viewing The Inside Of Hollow Bodies (AREA)
Description
【0001】[0001]
【産業上の利用分野】本発明は、医療用等として用いら
れる内視鏡において、鉗子その他の処置具を挿通するた
めの処置具挿通チャンネルを構成する軟性チューブを、
挿入部における先端部本体に装着した連結パイプに連結
・固定するための内視鏡の処置具挿通チャンネル接続部
の構造に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an endoscope used for medical purposes and the like, in which a flexible tube constituting a treatment instrument insertion channel for inserting forceps and other treatment instruments is provided.
The present invention relates to a structure of a treatment tool insertion channel connecting portion of an endoscope for connecting and fixing to a connecting pipe attached to a distal end main body of an insertion portion.
【0002】[0002]
【従来の技術】内視鏡には、鉗子その他の処置具を挿通
するために、処置具挿通チャンネルが設けられる。この
処置具挿通チャンネルは、内視鏡の本体操作部に設けた
処置具導入部から挿入部本体に形成した処置具導出口に
至る処置具の挿通経路であって、その大半は軟性チュー
ブで構成され、この軟性チューブの基端部は処置具導入
部に、また先端部は挿入部の先端部本体に設けた処置具
導出口に挿嵌して設けた連結パイプに連結される。ここ
で、処置具導入部は本体操作部に設けられているから、
軟性チューブにおける処置具導入部への連結及びその固
定を行うのに格別の支障を来すことはない。一方、挿入
部は体腔内に挿入される関係から、できるだけ細径なも
のとしなければならない。しかも、挿入部内には各種の
内蔵物によって極めて充填率が高くなっている。この部
位において軟性チューブを連結パイプに連結して強固に
固定するのはかなり困難である。2. Description of the Related Art An endoscope is provided with a treatment instrument insertion channel for inserting forceps and other treatment instruments. This treatment instrument insertion channel is a passage for inserting a treatment instrument from a treatment instrument introduction section provided in the main body operation section of the endoscope to a treatment instrument outlet formed in the insertion section main body, and most of the passage is constituted by a flexible tube. The proximal end of the flexible tube is connected to a treatment instrument introduction portion, and the distal end is connected to a connection pipe provided by being inserted into a treatment instrument outlet provided in a distal end body of the insertion portion. Here, since the treatment instrument introduction section is provided in the main body operation section,
There is no particular difficulty in connecting and fixing the flexible tube to the treatment instrument introduction portion. On the other hand, the insertion portion must be as thin as possible because it is inserted into the body cavity. Moreover, the filling rate is extremely high due to various built-in components in the insertion portion. It is very difficult to connect the flexible tube to the connecting pipe and fix it firmly at this point.
【0003】例えば、電子内視鏡は、挿入部の先端部分
は図5に示した構造となっている。この図から明らかな
ように、挿入部1の先端部本体1aには、観察用光学系
2が装着されており、この観察用光学系2の光軸を90
°曲折させるために、プリズム3が配置されると共に、
結像位置に固体撮像素子4が配置される。固体撮像素子
4は回路基板5に装着されており、挿入部1におけるこ
の部位が最も充填率が高くなっている。また、先端部本
体1aには処置具導出口6が開口しており、この処置具
導出口6に連結パイプ7が挿嵌されて、この連結パイプ
7に軟性チューブ8が連結されている。そして、連結パ
イプ7は回路基板5の下部位置に延在されて、この回路
基板5に極めて近接するように配置されている。この回
路基板5に近接する位置に配置されて、最も充填率の高
い部位で連結パイプ7に軟性チューブ8を嵌合させるこ
とにより連結するが、両者が分離しないように固定する
と共にその間の気密を取るするために、従来は、軟性チ
ューブ8を連結パイプ7に嵌合して、この嵌合部分の外
周に接着剤9を盛るように塗布して、軟性チューブ8の
抜け止めを行うように構成している。For example, in an electronic endoscope, a distal end portion of an insertion portion has a structure shown in FIG. As is clear from this figure, the observation optical system 2 is mounted on the distal end main body 1a of the insertion section 1, and the optical axis of the observation optical system 2 is set to 90 degrees.
° In order to bend, the prism 3 is arranged,
The solid-state imaging device 4 is arranged at the image forming position. The solid-state imaging device 4 is mounted on the circuit board 5, and this portion of the insertion section 1 has the highest filling rate. A treatment instrument outlet 6 is opened in the distal end main body 1a, and a connecting pipe 7 is inserted into the treatment instrument outlet 6, and a flexible tube 8 is connected to the connection pipe 7. The connecting pipe 7 extends to a lower position of the circuit board 5 and is arranged very close to the circuit board 5. It is arranged at a position close to the circuit board 5 and is connected by fitting the flexible tube 8 to the connection pipe 7 at a portion having the highest filling rate. Conventionally, a flexible tube 8 is fitted to the connecting pipe 7 and an adhesive 9 is applied on the outer periphery of the fitted portion so as to be applied to prevent the flexible tube 8 from coming off. doing.
【0004】[0004]
【発明が解決しようとする課題】ところで、前述したよ
うにして連結パイプ7と軟性チューブ8とを連結・固定
するようにすると、完全に気密を取り、しかもアングル
部の湾曲操作を繰り返し行っても、両者が分離しないよ
うに保持するために、接着剤9の盛り量をかなり多くし
なければならない。特に、軟性チューブ8を連結パイプ
7に嵌合する際には、この軟性チューブ8の端部を強制
的に拡径させることから、図6に示したように、その端
部が外方に膨らんでしまうことになり、さらに接着剤9
の厚みが増えることになる。しかしながら、接着剤9の
盛り量を多くすると、その分だけ嵩高になり、充填率が
増える結果、挿入部の細径化を図れなくなるという問題
点がある。また、先端部本体1aには各種の部材が接続
されており、これらの部材は連結パイプ7と近接した位
置にある関係等から、接着剤9を全体に均一に回り込ま
せることができない場合もある。とりわけ、図5に示し
たように、固体撮像素子4の回路基板5が装着されてお
り、しかもこの回路基板5の下面にはエミッタフォロワ
等の電子部品10が搭載されている場合には、接着剤9
を全周に回り込ませるのは、極めて困難である。さら
に、図7に示したように、軟性チューブ8′として、チ
ューブ体8a′の外側に金属線材を編んだネット8b′
を被装させるようにしたものも用いられるが、このネッ
ト8b′の端部が解けた状態になっていると、その部分
に塗布される接着剤の量もさらに多くする必要があり、
益々嵩張るようになる。When the connecting pipe 7 and the flexible tube 8 are connected and fixed as described above, the airtightness is completely maintained, and even if the bending operation of the angle portion is repeatedly performed. In order to keep the two from separating, the amount of the adhesive 9 must be considerably increased. In particular, when the flexible tube 8 is fitted to the connection pipe 7, the end of the flexible tube 8 is forcibly expanded, so that the end is bulged outward as shown in FIG. And the adhesive 9
Will increase in thickness. However, if the filling amount of the adhesive 9 is increased, it becomes bulky by that amount, and the filling rate increases. As a result, there is a problem that the diameter of the insertion portion cannot be reduced. In addition, various members are connected to the distal end portion main body 1a, and these members may not be able to make the adhesive 9 wrap around the entirety evenly because of the relationship between the members and the position close to the connection pipe 7. . Particularly, as shown in FIG. 5, when the circuit board 5 of the solid-state imaging device 4 is mounted, and the electronic component 10 such as an emitter follower is mounted on the lower surface of the circuit board 5, the adhesive Agent 9
It is extremely difficult to wrap around the entire circumference. Further, as shown in FIG. 7, as a flexible tube 8 ', a net 8b' in which a metal wire is knitted outside the tube body 8a '.
Is used, but if the end of the net 8b 'is in the unraveled state, the amount of adhesive applied to that part also needs to be further increased.
It becomes more and more bulky.
【0005】本発明は以上の点に鑑みてなされたもので
あって、その目的とするところは、軟性チューブと連結
パイプとの接続部を嵩張らせることなく、確実に気密を
取った状態で、安定的に連結・固定できるようにするこ
とにある。The present invention has been made in view of the above points, and an object of the present invention is to ensure that the connection between a flexible tube and a connecting pipe is not bulky and that the connection between the flexible tube and the connecting pipe is airtight. The purpose is to enable stable connection and fixation.
【0006】[0006]
【課題を解決するための手段】前述した目的を達成する
ために、本発明は、軟性チューブの先端部には固定用リ
ングを嵌合させて設け、この固定用リングを所定長さ連
結パイプ側に延在させて、この延在部の内周面と、前記
連結パイプの外面と、前記軟性チューブの端面との間に
円環状の隙間を形成し、この円環状の隙間内全体に接着
剤を介在させる構成としたことをその特徴とするもので
ある。In order to achieve the above-mentioned object, the present invention provides a flexible tube in which a fixing ring is fitted and provided at a distal end thereof, and the fixing ring is provided with a predetermined length on a connecting pipe side. And an inner peripheral surface of the extending portion,
Between the outer surface of the connecting pipe and the end surface of the flexible tube
It is characterized in that an annular gap is formed, and an adhesive is interposed in the entire annular gap .
【0007】[0007]
【作用】固定用リングを軟性チューブと連結パイプとの
間に掛け渡すように配置することによって、この接続部
分の外径寸法の増加を実質的に固定用リングの厚み分に
抑制できる。ここで、固定用リングは、少なくともそれ
と連結パイプとの間の隙間に接着剤が封じ込められるよ
うになっておれば良く、格別強度が要求されないので、
必要最小限の厚みに形成すれば、この部位の外径寸法の
増大はほぼ無視できる程度のものとなる。従って、軟性
チューブと連結パイプとの間の連結部分が必要以上に嵩
張るのを防止できる。しかも、この固定用リングは軟性
チューブの端部の変形やネットが解けることによる膨ら
みを抑制する機能も発揮するので、両者間の連結・固定
及び気密確保のための作業を極めて容易に、しかも確実
に行うことができる。By arranging the fixing ring so as to bridge between the flexible tube and the connecting pipe, an increase in the outer diameter of the connecting portion can be substantially suppressed to the thickness of the fixing ring. Here, the fixing ring only needs to be such that the adhesive can be sealed at least in the gap between it and the connecting pipe, and since no particular strength is required,
If it is formed to the minimum necessary thickness, the increase in the outer diameter of this portion will be almost negligible. Therefore, it is possible to prevent the connecting portion between the flexible tube and the connecting pipe from becoming unnecessarily bulky. In addition, since this fixing ring also exerts the function of suppressing the deformation of the end of the flexible tube and the swelling caused by the loosening of the net, the work for connecting and fixing the two and securing the airtightness is extremely easy and reliable. Can be done.
【0008】[0008]
【実施例】以下、本発明の実施例を図面に基づいて詳細
に説明する。まず、図1に本発明の一実施例を示す。図
中において、11は連結パイプ、12は軟性チューブで
ある。図5についての説明からも明らかなように、連結
パイプ11は挿入部の先端部本体に固着して設けられ
て、この連結パイプ11には軟性チューブ12の先端部
が嵌合されている。そして、この軟性チューブ12の先
端部分には、ほぼ半分程度が連結パイプ11の上部に向
けて突出するようにして固定用リング13が嵌合されて
おり、この固定用リング13と連結パイプ11との間の
隙間には接着剤14が充填されている。Embodiments of the present invention will be described below in detail with reference to the drawings. First, FIG. 1 shows an embodiment of the present invention. In the figure, 11 is a connection pipe, and 12 is a flexible tube. As is clear from the description of FIG. 5, the connecting pipe 11 is fixed to the distal end body of the insertion portion, and the distal end of the flexible tube 12 is fitted to the connecting pipe 11. A fixing ring 13 is fitted to the distal end portion of the flexible tube 12 so that approximately half projects toward the upper part of the connection pipe 11. Is filled with an adhesive 14.
【0009】処置具挿通チャンネルを構成する軟性チュ
ーブ12の連結パイプ11への接続部は以上のように構
成されるものであって、次に両者の接続方法について説
明する。The connecting portion of the flexible tube 12 constituting the treatment instrument insertion channel to the connecting pipe 11 is constructed as described above. Next, a method of connecting both will be described.
【0010】まず、図2に示したように、軟性チューブ
12に固定用リング13を嵌合させておき、また連結パ
イプ11の端部近傍における外周面に接着剤14を塗布
する。ここで、連結パイプ11に対する接着剤14の塗
布は、この連結パイプ11を先端部本体から分離した状
態で行った後に、それを先端部本体における処置具導出
口に挿嵌するようにしても良いが、連結パイプを先端部
本体に装着した状態で行うこともできる。ここで、軟性
チューブ12の接続前に接着剤が塗布されることから、
連結パイプ11の周囲には、少なくとも軟性チューブ1
2の厚み相当分以上の隙間が存在するので、この連結パ
イプ11に全周に接着剤を均一に塗布するのは格別困難
ではない。また、連結パイプ11の外面に加えて、軟性
チューブ12の外面における固定用リング13が位置す
る部位にも接着剤14′を塗布しても良い。ただし、軟
性チューブ12の外面の接着剤14′はごく薄く塗布し
ておく。First, as shown in FIG. 2, a fixing ring 13 is fitted to a flexible tube 12, and an adhesive 14 is applied to an outer peripheral surface near an end of the connecting pipe 11. Here, the application of the adhesive 14 to the connecting pipe 11 may be performed in a state where the connecting pipe 11 is separated from the distal end main body, and then may be inserted into the treatment instrument outlet of the distal end main body. However, it can also be performed with the connecting pipe attached to the distal end body. Here, since the adhesive is applied before connecting the flexible tube 12,
Around the connecting pipe 11, at least the soft tube 1
Since there is a gap equal to or more than the thickness of 2, it is not particularly difficult to apply the adhesive uniformly to the entire circumference of the connecting pipe 11. Further, in addition to the outer surface of the connecting pipe 11, the adhesive 14 'may be applied to a portion of the outer surface of the flexible tube 12 where the fixing ring 13 is located. However, the adhesive 14 'on the outer surface of the flexible tube 12 is applied very thinly.
【0011】そこで、図3に示したように、固定用リン
グ13を軟性チューブ12の奥側に位置させた状態で、
この軟性チューブ12を連結パイプ11に嵌合させて、
所定の位置まで押し込む。連結パイプ11の外表面には
接着剤14が塗布されているが、この接着剤14は軟性
チューブ12の押し込みにより、この軟性チューブ12
の先端面によって大半が押し出される。ただし、なおあ
る程度の量は連結パイプ11の表面に残るので、このよ
うに残存する接着剤の作用により軟性チューブ12は直
接連結パイプ11の外表面に固着される。Therefore, as shown in FIG. 3, with the fixing ring 13 positioned at the back of the flexible tube 12,
This flexible tube 12 is fitted to the connection pipe 11,
Push it into place. An adhesive 14 is applied to the outer surface of the connecting pipe 11, and the adhesive 14 is pushed into the flexible tube 12 by pushing the flexible tube 12.
Most are pushed out by the tip surface of. However, since a certain amount remains on the surface of the connecting pipe 11, the flexible tube 12 is directly fixed to the outer surface of the connecting pipe 11 by the action of the remaining adhesive.
【0012】この状態で、固定用リング13を軟性チュ
ーブ12から押し出すようにスライド変位させる。この
時に、固定用リング13を回転させながら変位させて、
固定用リング13を、軟性チューブ12の先端から、ほ
ぼ半分程度突出させる位置まで移行させる。ここで、固
定用リング13は軟性チューブ12に嵌合されているか
ら、その突出部分は、それと連結パイプ11との間で、
軟性チューブ12の端面に至る円環状の隙間ができ、こ
の隙間に連結パイプ11の外面の接着剤14が封じ込め
られる。しかも、固定用リング13を回転させながら変
位させることによって、流動状態にある接着剤14が全
周に引き回されるようになり、この隙間全体にむらなく
均一に接着剤14が行き渡るようになる。また、軟性チ
ューブ12と連結パイプ11との間には、前述したよう
に接着剤が介在し、さらに軟性チューブ12の外面に塗
布された接着剤14′がそれと固定用リング13との間
にも介在することになる。In this state, the fixing ring 13 is slid so as to be pushed out of the flexible tube 12. At this time, the fixing ring 13 is displaced while rotating,
The fixing ring 13 is moved from the distal end of the flexible tube 12 to a position where it protrudes approximately half. Here, since the fixing ring 13 is fitted to the flexible tube 12, its protruding portion is located between it and the connecting pipe 11 .
An annular gap reaching the end surface of the flexible tube 12 is formed, and the adhesive 14 on the outer surface of the connection pipe 11 is sealed in the gap. In addition, by displacing the fixing ring 13 while rotating it, the adhesive 14 in a flowing state is drawn around the entire circumference, and the adhesive 14 spreads evenly and uniformly over the entire gap. . As described above, the adhesive is interposed between the flexible tube 12 and the connecting pipe 11, and the adhesive 14 'applied to the outer surface of the flexible tube 12 is also provided between the flexible tube 12 and the fixing ring 13. It will intervene.
【0013】ここで、図4に示したように、軟性チュー
ブ12から予め固定用リング13を所定長さ突出させて
おき、この状態で軟性チューブ12を連結パイプ11に
嵌合して所要の位置まで押し込むと共に、固定用リング
13を軟性チューブ12に対する相対位置を保ったまま
回転させるようにして接続しても良い。このようにして
接続すれば、連結パイプ11の外面に塗布した接着剤1
4が軟性チューブ12の端面により押し出されながら、
固定用リング13の突出部分の内部に送り込まれ、しか
もこの固定用リング13の回転により全周にわたって均
一になるように引き回されて、接着剤が外部にはみ出す
おそれはない。Here, as shown in FIG. 4, a fixing ring 13 is protruded from the flexible tube 12 in advance by a predetermined length. The connection may be made such that the fixing ring 13 is rotated while the relative position with respect to the flexible tube 12 is maintained. By connecting in this manner, the adhesive 1 applied to the outer surface of the connecting pipe 11
4 is pushed out by the end face of the flexible tube 12,
The adhesive is fed into the protruding portion of the fixing ring 13, and is drawn around the entire circumference by the rotation of the fixing ring 13, so that the adhesive does not protrude to the outside.
【0014】以上のようにして軟性チューブ12を連結
パイプ11に接続して、接着剤を硬化させると、連結パ
イプ11と軟性チューブ12及び固定用リング13が極
めて強固に固着されることになる。また、軟性チューブ
12の端面と、連結パイプ11の外面及び固定用リング
13の内面との間の隙間には、その全周にわたって均一
に接着剤14が充填されているので、この軟性チューブ
12と連結パイプ11との接続部分の気密性が極めて良
好となる。When the flexible tube 12 is connected to the connecting pipe 11 and the adhesive is cured as described above, the connecting pipe 11, the flexible tube 12 and the fixing ring 13 are fixed very firmly. In addition, the gap between the end surface of the flexible tube 12 and the outer surface of the connecting pipe 11 and the inner surface of the fixing ring 13 is uniformly filled with the adhesive 14 over the entire circumference. The airtightness of the connection portion with the connection pipe 11 becomes extremely good.
【0015】而して、固定用リング13は、それと連結
パイプ11との間に隙間を確保し、この隙間内に接着剤
14を封じ込めるためのものであって、格別強度を持た
せる必要がないので、この固定用リング13に必要最小
限の肉厚を持たせることによって、軟性チューブ12と
連結パイプ11との連結部分の膨らみを最小限に抑制で
きる。しかも、この固定用リング13は、前述した図6
のように軟性チューブの先端が膨らんだ状態となるのを
防止する機能や、図7のネットが解れるのを防止する機
能をも発揮させることができ、このために電子内視鏡に
おいては、その挿入部のうち、最も充填率の高い部位で
ある固体撮像素子の配設部における充填率を小さくで
き、かつ各部材の配置に余裕を持たせられるようにな
り、また挿入部の細径化を図ることも可能になる。The fixing ring 13 is for securing a gap between the fixing ring 13 and the connecting pipe 11 and for sealing the adhesive 14 in the gap, and does not need to have extra strength. Therefore, by providing the necessary minimum thickness to the fixing ring 13, it is possible to minimize the swelling of the connecting portion between the flexible tube 12 and the connecting pipe 11. Moreover, the fixing ring 13 is the same as that shown in FIG.
And the function of preventing the tip of the flexible tube from expanding as shown in FIG. 7 and the function of preventing the net of FIG. 7 from being unraveled. Therefore, in an electronic endoscope, Of the insertion portion, the filling ratio in the portion where the solid-state imaging device is the highest filling portion can be reduced, and the arrangement of each member can be given a margin, and the diameter of the insertion portion can be reduced. It is also possible to plan.
【0016】[0016]
【発明の効果】以上説明したように、本発明は、軟性チ
ューブの先端部に、それが嵌合される連結パイプ側に所
定の長さ突出させるようにして固定用リングを嵌合さ
せ、この固定用リングを所定長さ連結パイプ側に延在さ
せて、この延在部の内周面と、前記連結パイプの外面
と、前記軟性チューブの端面との間に円環状の隙間を形
成し、この円環状の隙間内全体に接着剤を介在させる構
成としたので、軟性チューブと連結パイプとの間の連結
部分の外径を接着剤で嵩張らせることなく、確実に両者
を連結・固着し、かつ十分に気密性を持たせることがで
き、しかも固定用リングの装着時に、それを回転させる
ことによって、周囲に障害物等があっても、接着剤を容
易に、しかも確実に固定用リングと連結パイプとの間の
隙間の全周に回り込ませることができるようになり、軟
性チューブと連結パイプとの間の接続を行う作業の作業
性が著しく向上する等の効果を奏する。As described above, according to the present invention, the fixing ring is fitted to the distal end of the flexible tube so as to protrude by a predetermined length toward the connecting pipe to which the flexible tube is fitted. Extend the fixing ring to the connecting pipe side for a predetermined length.
And the inner peripheral surface of the extending portion and the outer surface of the connecting pipe.
And an annular gap between the flexible tube and the end face of the flexible tube.
Since the adhesive is interposed in the whole of the annular gap, the outer diameter of the connecting portion between the flexible tube and the connecting pipe is securely increased without increasing the outer diameter of the connecting portion with the adhesive. Adhesive can be fixed easily and securely, even if there are obstacles around it by rotating it when mounting the fixing ring, and it can be fixed securely. The connection between the flexible ring and the connecting pipe can be wrapped around the entire circumference of the gap between the connecting ring and the connecting pipe, and the effect of significantly improving the workability of the work of connecting between the flexible tube and the connecting pipe can be achieved.
【図1】本発明の一実施例を示す処置具挿通チャンネル
を構成する軟性チューブと連結パイプの接続部の構造を
示す断面図である。FIG. 1 is a cross-sectional view showing a structure of a connecting portion between a flexible tube and a connecting pipe constituting a treatment instrument insertion channel according to an embodiment of the present invention.
【図2】軟性チューブの連結パイプへの接続前の状態を
示す説明図である。FIG. 2 is an explanatory diagram showing a state before a flexible tube is connected to a connection pipe.
【図3】軟性チューブの連結パイプへの接続工程を示す
説明図である。FIG. 3 is an explanatory view showing a process of connecting a flexible tube to a connecting pipe.
【図4】軟性チューブの連結パイプへの接続工程の他の
例を示す説明図である。FIG. 4 is an explanatory view showing another example of a process of connecting a flexible tube to a connection pipe.
【図5】従来技術による処置具挿通チャンネルを設けた
挿入部の先端部分の断面図である。FIG. 5 is a cross-sectional view of a distal end portion of an insertion portion provided with a treatment instrument insertion channel according to a conventional technique.
【図6】従来技術による軟性チューブの連結パイプへの
接続部の構造を示す断面図である。FIG. 6 is a cross-sectional view showing a structure of a connecting portion of a conventional flexible tube to a connecting pipe.
【図7】他の従来技術による軟性チューブの連結パイプ
への接続部の構造を示す断面図である。FIG. 7 is a cross-sectional view showing a structure of a connecting portion of a flexible tube to a connecting pipe according to another related art.
11 連結パイプ 12 処置具挿通チャンネル 13 固定用パイプ 14 接着剤 DESCRIPTION OF SYMBOLS 11 Connecting pipe 12 Treatment tool insertion channel 13 Fixing pipe 14 Adhesive
フロントページの続き (58)調査した分野(Int.Cl.6,DB名) A61B 1/00 - 1/32 G02B 23/24 Continuation of the front page (58) Field surveyed (Int.Cl. 6 , DB name) A61B 1/00-1/32 G02B 23/24
Claims (1)
ルを構成する軟性チューブの先端を延在させて、挿入部
の先端部本体に装着した処置具導出口に取り付けた連結
パイプに嵌合させた状態に固定するためのものであっ
て、前記軟性チューブの先端部には固定用リングを嵌合
させて設け、この固定用リングを所定長さ連結パイプ側
に延在させて、この延在部の内周面と、前記連結パイプ
の外面と、前記軟性チューブの端面との間に円環状の隙
間を形成し、この円環状の隙間内全体に接着剤を介在さ
せる構成としたことを特徴とする内視鏡の処置具挿通チ
ャンネル接続部。1. A distal end of a flexible tube constituting a treatment instrument insertion channel is extended into an insertion portion of an endoscope, and is fitted to a connecting pipe attached to a treatment instrument outlet mounted on a distal end body of the insertion portion. A fixing ring is fitted to the distal end of the flexible tube, and the fixing ring is extended toward the connecting pipe by a predetermined length, and the extension is performed. The inner peripheral surface of the existing part and the connecting pipe
Between the outer surface of the flexible tube and the end surface of the flexible tube.
A treatment tool insertion channel connecting portion for an endoscope, wherein a gap is formed and an adhesive is interposed in the entire annular gap .
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5139907A JP2943562B2 (en) | 1993-05-20 | 1993-05-20 | Endoscope treatment instrument insertion channel connection |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5139907A JP2943562B2 (en) | 1993-05-20 | 1993-05-20 | Endoscope treatment instrument insertion channel connection |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH06327618A JPH06327618A (en) | 1994-11-29 |
JP2943562B2 true JP2943562B2 (en) | 1999-08-30 |
Family
ID=15256413
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5139907A Expired - Lifetime JP2943562B2 (en) | 1993-05-20 | 1993-05-20 | Endoscope treatment instrument insertion channel connection |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2943562B2 (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3309568B2 (en) * | 1994-05-16 | 2002-07-29 | 富士写真光機株式会社 | Endoscope treatment instrument insertion channel fixing mechanism |
JP3567600B2 (en) * | 1996-03-25 | 2004-09-22 | 富士写真光機株式会社 | Endoscope treatment instrument insertion channel |
JP3653908B2 (en) * | 1996-12-26 | 2005-06-02 | フジノン株式会社 | Endoscope treatment instrument insertion channel |
JP3505061B2 (en) * | 1997-04-07 | 2004-03-08 | ペンタックス株式会社 | Endoscope tube base connection part and method of manufacturing the same |
JP5374099B2 (en) * | 2008-09-12 | 2013-12-25 | オリンパスメディカルシステムズ株式会社 | Endoscope insertion part |
JP5596469B2 (en) * | 2010-08-23 | 2014-09-24 | オリンパス株式会社 | A band-shaped member and a fixing method for fixing the outer skin to the curved portion by the band-shaped member |
JP6557506B2 (en) * | 2015-04-27 | 2019-08-07 | Hoya株式会社 | Endoscope piping member connection method and connection structure |
CN111225595B (en) * | 2017-11-30 | 2023-01-24 | 奥林巴斯株式会社 | Insertion device, connection structure of exterior member, and endoscope |
WO2019106915A1 (en) * | 2017-11-30 | 2019-06-06 | オリンパス株式会社 | Insertion device |
-
1993
- 1993-05-20 JP JP5139907A patent/JP2943562B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPH06327618A (en) | 1994-11-29 |
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