JP2006026344A

JP2006026344A - Stretching leg type movable sheath for insertion of large intestine endoscope

Info

Publication number: JP2006026344A
Application number: JP2004232821A
Authority: JP
Inventors: Toshifumi Hayakawa; 敏文早川
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-07-12
Filing date: 2004-07-12
Publication date: 2006-02-02

Abstract

<P>PROBLEM TO BE SOLVED: To facilitate the insertion of a large intestine endoscope, and to enable the insertion of the large intestine endoscope to the intestinum ileum and the coelenteron. <P>SOLUTION: A hollow sheath 1 for which the inside of a sheath for a large intestine endoscope is made hollow is connected with an injection tube 3, and around the hollow sheath 1, a stretching leg 2 which can be stretched/contracted by an air pressure, or the pressure of a liquid such as an oil being fed from the injection tube is attached. The stretching/contraction of the stretching leg enables the movement of the sheath itself through which a large intestine endoscope fiber is passed deeper more and more. A ring-like stopper is provided on the distal end of the large intestine endoscope fiber, and the sheath is prevented from moving forward of the distal end of the large intestine endoscope fiber. Thus, the large intestine endoscope fiber itself can be advanced together to facilitate insertion of the large intestine endoscope, and the insertion to the intestinum ileum and the coelenteron is made possible by this stretching leg type movable sheath for the insertion of the large intestine endoscope. Also, by connecting the same sheaths by the injection tube, the driving force for the advancing can be increased, and sanitation can be kept by a structure for which the inside is shut off from outside. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

Detailed Description of the Invention

本発明は大腸内視鏡用のシースの周囲に空気圧、もしくはオイル等の液体の圧によって伸び縮み出来る伸展脚を取り付け、大腸内視鏡ファイバーを通すシース事体をさらに奥へ、奥へと移動させる事を可能にしたものであり、大腸内視鏡ファイバーの先端にリング状のストッパーを設けシースを大腸内視鏡ファイバーの先端より前方へ行かない様にすることで大腸内視鏡ファイバーそのものを一緒に奥へ進める事が出来、回腸、腔腸までの挿入を可能とできる。 In the present invention, an extension leg that can be expanded and contracted by air pressure or pressure of a liquid such as oil is attached around a sheath for a colonoscopy, and the sheath body that passes the colonoscopy fiber is moved further to the back. By attaching a ring-shaped stopper to the tip of the colon endoscope fiber so that the sheath does not go forward from the tip of the colon endoscope fiber, the colon endoscope fiber itself can be It can be advanced together and can be inserted into the ileum and ileum.

従来より大腸内視鏡ファイバーの挿入は熟練の医師ですら時間を要し、患者に少なからず苦痛を強いるものとなっている。理由は大腸内視鏡ファイバーをある程度の力で外から押したり引っ張ったりしなければ奥へは進めない部位が少なからず存在するからであり、外から加える力が大腸内視鏡ファイバーの先端に伝えずらい事が原因となっている。近年ダブルバルーン式のファイバーが開発され小腸までの観察が可能となっているが、一般の大腸カメラ検査より遥かに長い時間と苦痛を患者に強いるものとなっていて、操作が煩雑で、外からの外力をかなり要し、ファイバーの進行に難渋している。Conventionally, insertion of a colonoscope fiber takes time even for a skilled doctor, and it is not a little painful for the patient. The reason is that there are not a few parts that can not go deeper unless the colonoscope fiber is pushed or pulled from the outside with a certain amount of force, and the force applied from the outside is transmitted to the tip of the colonoscope fiber It is caused by misunderstandings. In recent years, double-balloon type fibers have been developed, and observation up to the small intestine is possible. It takes a lot of external force and is struggling with the progress of the fiber.

本案はそれらの問題を解決する為に発案されたものであり、図面について説明すれば、本案のシース内部は空洞となっていて空気もしくはオイル等の液体で満たされており、注入管３を通して空気もしくはオイル等の液体が陽圧で送られてくると、その圧によりシース空洞部５に連結したスライデング筒４が伸展し、逆に注入管３より陰圧で引くとスライデング筒４は縮む。スライデング筒４は伸展性に富む弾性ゴ厶で密閉状態で覆われて伸展脚２を形成し内部は外部と遮断されており、スライデング筒４の伸び縮みに合わせて伸展脚２が自由に伸び縮みする事ができる。伸展脚２の伸び縮みにより空洞シース筒１をさらに大腸の奥へ、奥へと移動させる事が可能であり、大腸内視鏡ファイバーの先端にリング状のストッパーを設け空洞シース筒１を大腸内視鏡ファイバーの先端より前方へ行かない様にすることで大腸内視鏡ファイバーそのものを一緒に奥へ進める事が出来、回腸、腔腸までの挿入を可能とできる。又、同様のシースを注入管３で連結する事で前進の為の推進力を増す事が可能である。The present plan was devised to solve these problems. If the drawings are described, the inside of the sheath of the present plan is hollow and filled with a liquid such as air or oil. Alternatively, when a liquid such as oil is sent at a positive pressure, the sliding cylinder 4 connected to the sheath cavity 5 is expanded by the pressure, and conversely, when the suction cylinder 3 is pulled at a negative pressure, the sliding cylinder 4 is contracted. The sliding tube 4 is hermetically covered with an elastic rubber rod having excellent extensibility to form an extending leg 2 and the inside is blocked from the outside. The extending leg 2 freely expands and contracts according to the expansion and contraction of the sliding tube 4. I can do it. It is possible to move the hollow sheath tube 1 further to the back of the large intestine by the expansion and contraction of the extension leg 2, and a ring-shaped stopper is provided at the tip of the large intestine endoscope fiber so that the hollow sheath tube 1 is placed in the large intestine. By preventing the endoscope fiber from going forward from the distal end of the endoscope fiber, the endoscope fiber itself can be advanced together, and insertion into the ileum and the ileum can be made possible. Further, by connecting the same sheath with the injection tube 3, it is possible to increase the driving force for the forward movement.

この様な構造であるから本案の伸展脚式移動シースは大腸内視鏡ファイバーの挿入手技を容易とし回腸、腔腸までの挿入を可能とできる。本案の伸展脚式移動シースの内部は外部とは遮断された構造であり、大腸内視鏡ファイバーと同様に洗浄して使用する事が出来る。Because of such a structure, the extension leg type movable sheath of the present proposal facilitates the insertion procedure of the colonoscopy fiber and enables insertion into the ileum and the ileum. The extension leg type movable sheath of the present plan has a structure that is cut off from the outside, and can be washed and used in the same manner as a colonoscope fiber.

本案の平面図。The top view of this plan. 本案の側面図。The side view of this plan. 本案の正面図。The front view of this plan. 本案の背面図。The rear view of this plan. 本案伸展脚部の拡大断面図。The expanded sectional view of this plan extension leg. 本案の斜視図。The perspective view of this plan.

Explanation of symbols

１空洞シース筒
２伸展脚
３注入管
４スライデング筒
５シース空洞部1 hollow sheath tube 2 extension leg 3 injection tube 4 sliding tube 5 sheath cavity

Claims

A colonoscope sheath that allows the extension leg to be stretched and retracted by the pressure of air pressure or fluid such as oil sent from the injection tube around the colonoscope sheath, and to move forward. The colonoscope can be advanced to the back together by providing a stopper at the tip of the colonoscope fiber so that the sheath does not go forward from the tip of the colonoscope fiber. It is a movable sheath for insertion.