JPS6399834A - Suction pipeline change-over device of endoscope - Google Patents

Suction pipeline change-over device of endoscope

Info

Publication number
JPS6399834A
JPS6399834A JP61246955A JP24695586A JPS6399834A JP S6399834 A JPS6399834 A JP S6399834A JP 61246955 A JP61246955 A JP 61246955A JP 24695586 A JP24695586 A JP 24695586A JP S6399834 A JPS6399834 A JP S6399834A
Authority
JP
Japan
Prior art keywords
endoscope
suction
forceps
switching
channel
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.)
Pending
Application number
JP61246955A
Other languages
Japanese (ja)
Inventor
輝雄 大内
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pentax Corp
Original Assignee
Asahi Kogaku Kogyo Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Asahi Kogaku Kogyo Co Ltd filed Critical Asahi Kogaku Kogyo Co Ltd
Priority to JP61246955A priority Critical patent/JPS6399834A/en
Publication of JPS6399834A publication Critical patent/JPS6399834A/en
Pending legal-status Critical Current

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Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。
(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【発明の詳細な説明】 [産業上の利用分野] この発明は、複数の鉗子チャンネルを有する内視鏡に関
し、特に、各チャンネルから選択的に吸引を行うことが
できるようにした内視鏡の吸引管路切換装置に関するも
のである。
[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an endoscope having a plurality of forceps channels, and in particular to an endoscope that can selectively perform suction from each channel. This invention relates to a suction line switching device.

[従来の技術] 内視鏡を通して体腔内の手術などを行ういわゆる内視鏡
的処置を行うためには、複数の鉗子チャンネルを有する
内視鏡が用いられる。この種の内視鏡においては、その
処置を円滑に行うために、各鉗子チャンネルを吸引装置
に接続して、各鉗子チャンネルから選択的に吸引を行う
ように吸引管路を切換える必要がある。
[Prior Art] An endoscope having a plurality of forceps channels is used to perform a so-called endoscopic procedure in which surgery or the like is performed inside a body cavity through an endoscope. In this type of endoscope, in order to perform the treatment smoothly, it is necessary to connect each forceps channel to a suction device and switch the suction line so that suction is selectively performed from each forceps channel.

そこで従来の吸引管路切換装置は、吸引管路の開閉を行
う開閉弁(ピストン)を回転させて、吸引装置に連通ず
る鉗子チャンネルを選択切換えるようにしたもの(実開
昭50−142387号公報)、あるいは、吸引管路の
開閉を行う開閉弁とは別に、吸引装置に連通する鉗子チ
ャンネルを選択的に切換える切換弁を併設したもの(特
開昭59−20142号公報)などが知られている。
Therefore, the conventional suction line switching device rotates an on-off valve (piston) that opens and closes the suction line to select and switch the forceps channel communicating with the suction device (see Utility Model Application No. 50-142387). ), or one that is equipped with a switching valve that selectively switches the forceps channel communicating with the suction device in addition to the on-off valve that opens and closes the suction pipe (Japanese Patent Laid-Open No. 59-20142) is known. There is.

[発明が解決しようとする問題点] レーザー治療、高周波治療あるいは大出血に対する緊急
処置等の内視鏡的処置を行う際には、術者は高度の医学
的判断をしながら各種の器械操作をほとんど一人で迅速
に行わなければならない。
[Problems to be solved by the invention] When performing endoscopic procedures such as laser therapy, high-frequency therapy, or emergency treatment for major bleeding, the operator must perform most of the operations of various instruments while making sophisticated medical judgments. Must be done alone and quickly.

その際に、変化する状況にあわせて、どの鉗子チャンネ
ルを通じて吸引を行うかを迅速に選択しつつ血液その他
の吸引を行うことが、正確かつ迅速な処置を行う上で極
めて重要である。しかし、上述の従来の内視鏡の吸引管
路切換装置は、双方共に、吸引がどのチャンネルから行
われるかの判断を瞬時に行うことができず、緊急を要す
る内視鏡的処置を正確かつ迅速に行ううえでの障害にな
っていた。
At that time, it is extremely important to quickly select which forceps channel to use to aspirate blood or other substances in accordance with changing conditions in order to perform accurate and prompt treatment. However, both of the conventional endoscope suction line switching devices described above are unable to instantly determine which channel suction is to be performed from, and are therefore unable to accurately and accurately perform urgent endoscopic procedures. This was an impediment to speedy implementation.

この発明は、そのような従来の欠点を解消し、吸引管路
の切換状態を容易に把握して、正確かつ迅速に内視鏡的
処置を行うことができる内視鏡の吸引管路切換装置を提
供することを目的とする。
The present invention eliminates such conventional drawbacks and provides an endoscope suction line switching device that can easily grasp the switching status of the suction line and perform endoscopic treatment accurately and quickly. The purpose is to provide

[問題点を解決するための手段] 上述の問題点を解決するための、本発明による内視鏡の
吸引管路切換装置は、 吸引装置に接続された複数の鉗子チャンネルを右し、各
鉗子チャンネルの挿入[〕が操作部に各々設けられた内
視鏡において、吸引装置と各鉗子チャンネルとの間の管
路を個々に選択的に連通又は閉塞する管路切換手段を、
各挿入口部に設けたことを特徴とする。
[Means for Solving the Problems] In order to solve the above-mentioned problems, the suction line switching device for an endoscope according to the present invention has the following features: In an endoscope in which channel insertion [] is provided in the operation section, a channel switching means for selectively communicating or closing the channel between the suction device and each forceps channel,
It is characterized by being provided at each insertion port.

[作用] 鉗子チャンネルの各挿入口部に設けられた管路切換手段
によって、吸引装置と各鉗子チャンネルとの間の管路を
個々に選択的に連通又は閉塞することができる。そして
、管路切換手段が鉗子チャンネルの各挿入口部毎に設け
られているので、各チャンネルが各々吸引管路と連通し
ているか否かを瞬時に判断できる。
[Function] By the pipe line switching means provided at each insertion port of the forceps channel, the pipe lines between the suction device and each forceps channel can be individually and selectively communicated or closed. Since the pipe switching means is provided for each insertion port of the forceps channel, it can be instantly determined whether each channel is in communication with the suction pipe.

[実施例] 本発明の一実施例を第1図及び第2図にもとづいて説明
する。
[Example] An example of the present invention will be described based on FIGS. 1 and 2.

第2図は本実施例装置を装備した内視鏡の略示図であり
、1は内視鏡の操作部、2はその外部に設けられた吸引
装置、3はその吸引装置に接続された吸引管路、4a及
び4bは内視鏡の挿入部5を通って先端部(図示せず)
に開口する2つの鉗子チャンネルであり、6a及び6b
は、操作部1の下部に並列に突設されて鉗子チャンネル
4a。
FIG. 2 is a schematic diagram of an endoscope equipped with the device of this embodiment, in which 1 is the operating section of the endoscope, 2 is a suction device provided outside the endoscope, and 3 is a suction device connected to the suction device. The suction conduits 4a and 4b pass through the insertion section 5 of the endoscope to the distal end (not shown).
Two forceps channels opening into 6a and 6b
The forceps channels 4a are protruded in parallel from the lower part of the operating section 1.

4bに処置具を挿入する挿入口である。挿入口6a、6
bは操作部1の下部に設けられているので、汚物等が挿
入口から噴出するようなことがあっても術者の顔などに
はかからない、7は、操作部の上部に設けられて吸引管
路3の開閉を行う公知の開閉弁であり、その開閉弁7は
、吸引管路3が接続されたシリンダ7aと、その中に進
退自在に嵌挿されたピストン7bよりなり、通常はピス
トン7bを軸方向に貫通する通孔7cから外気が吸引さ
れ、ピストン7bの頭部を指先で塞いでピストン7bを
シリンダ7a内に押し込むと、ピストン7bの側部に穿
設された連通孔7dを通って吸引管路3が連通する。
4b is an insertion port for inserting a treatment instrument. Insertion ports 6a, 6
b is provided at the bottom of the operating section 1, so even if dirt etc. spews out from the insertion port, it will not hit the operator's face, etc. 7 is provided at the top of the operating section for suction This is a known on-off valve that opens and closes the pipe line 3, and the on-off valve 7 consists of a cylinder 7a to which the suction line 3 is connected, and a piston 7b fitted into the cylinder 7a so as to be able to move forward and backward. Outside air is sucked in from the through hole 7c that passes through the piston 7b in the axial direction, and when the head of the piston 7b is closed with a fingertip and the piston 7b is pushed into the cylinder 7a, the communication hole 7d drilled in the side of the piston 7b is sucked in. The suction conduit 3 communicates therethrough.

第1図は鉗子チャンネルの挿入口6a、6b付近の断面
図であり、軸方向に鉗子挿通孔12が貫通形成された切
換弁13が、操作部1下部の壁部をナツト11で挟んで
、2個並列に回転自在に装着されている。その切換弁1
3の上端部には、中央にスリット14が形成されたゴム
製の鉗子栓15が着脱自在に装着されており、そのスリ
ット14は常時閉じて挿入口6a、6bを密閉しており
、処置具使用時には、そのスリット14を通して処置具
を挿入できるようになっている。また、切換弁13の下
端部は、全屈パイプ16と例えばシリコンゴムチューブ
などの柔軟で漬れ難い材料よりなる連結チューブ17と
により、鉗子チャンネル4 (a 、 b)に接続され
ている。
FIG. 1 is a cross-sectional view of the forceps channel insertion ports 6a and 6b. Two pieces are installed in parallel so that they can rotate freely. The switching valve 1
A rubber forceps stopper 15 with a slit 14 formed in the center is detachably attached to the upper end of the forceps 3, and the slit 14 is always closed to seal the insertion ports 6a and 6b. During use, a treatment instrument can be inserted through the slit 14. Further, the lower end of the switching valve 13 is connected to the forceps channel 4 (a, b) by a fully bent pipe 16 and a connecting tube 17 made of a flexible and resistant material such as a silicone rubber tube.

切換弁13の下部の側壁には、2つのシール用0リング
18.19の間に、連通孔20が鉗子挿通孔12に連通
して形成されている。一方、2つの切換弁13の間で吸
引管路3がT字状に分岐されて両方の切換弁13に向っ
て開口しており、切換弁13を回転させて吸引管路3の
開口と上記連通孔20とが合致すると、吸引管路3と鉗
子チャンネル4 (a 、 b)とが連通ずる。また、
操作部■から突出した切換弁13の上端部付近には外径
の太い摘み部21が形成されており、この部分を指先で
摘んで切換弁13を回転させることにより、連結チュー
ブ17が円断面を保持しつつ捩れ、吸引管路3と鉗子チ
ャンネル4 (a 、 b)との間が個々に選択的に連
通又は閉塞される。本実施例においては摘み部21が操
作部lに互いに独立して突設されているので、指先での
操作が容易である。
A communication hole 20 is formed in the lower side wall of the switching valve 13 between the two sealing O-rings 18 and 19 so as to communicate with the forceps insertion hole 12. On the other hand, the suction pipeline 3 is branched into a T-shape between the two switching valves 13 and opens toward both switching valves 13, and by rotating the switching valve 13, the opening of the suction pipeline 3 and the above When the communication holes 20 match, the suction conduit 3 and the forceps channels 4 (a, b) communicate with each other. Also,
A knob 21 with a large outer diameter is formed near the upper end of the switching valve 13 protruding from the operating part (■), and by pinching this part with your fingertips and rotating the switching valve 13, the connecting tube 17 can be turned into a circular section. The suction pipe 3 and the forceps channels 4 (a, b) are individually and selectively communicated with or occluded by twisting while holding the forceps. In this embodiment, the knobs 21 are provided independently of each other and protrude from the operating section 1, so that the knobs 21 can be easily operated with a fingertip.

22は切換弁13の回転を所定位置で停止させるストッ
パビン、23はコイルスプリング24によって内方に押
されたクリック用の鋼球であり、切換弁13の側壁に形
成された円錐状の穴25に鋼球23が係合すると、切換
弁13の回転がその位置で静止する。
22 is a stopper pin that stops the rotation of the switching valve 13 at a predetermined position; 23 is a click steel ball pushed inward by a coil spring 24; When the steel ball 23 engages, the rotation of the switching valve 13 stops at that position.

上述のように構成された本実施例の装置は、切換弁13
の摘み部21を指先で摘んで回転させることにより、ス
トッパピン22がぶつかる位置では、第1図の挿入口6
aのごとく吸引管路3と鉗子チャンネル4aとの間の管
路が閉塞され、クリック用の鋼球23が穴25と係合す
る位置では、同図の挿入口6bのごとく吸引管路3と鉗
子チャンネル4bとの間の管路が連通ずる。
The device of this embodiment configured as described above has a switching valve 13.
By pinching the knob 21 with your fingertips and rotating it, the insertion opening 6 in FIG.
As shown in a, the pipe between the suction pipe 3 and the forceps channel 4a is closed, and at the position where the click steel ball 23 engages with the hole 25, the pipe between the suction pipe 3 and the forceps channel 4a is closed, as shown in the insertion port 6b in the figure. A conduit is connected to the forceps channel 4b.

第3図は本発明の第2の実施例を示しており。FIG. 3 shows a second embodiment of the invention.

上述の第1の実施例が切換弁13を回転させて切換を行
うのに対して、切換弁31を進退させて切換を行うよう
にしたものである。切換弁31は、操作部1に並んで形
成されたシリング32内に進退自在に緩く挿入され、そ
の外周には各々3つのシール用0リング33,34.3
5が装着されており、上側の2つの0リング33.34
の間の側壁には連通溝36が形成されると共に、鉗子挿
通孔37に連通ずる連通孔38が穿設されている。
In the first embodiment described above, switching is performed by rotating the switching valve 13, whereas switching is performed by moving the switching valve 31 forward and backward. The switching valve 31 is loosely inserted into a sill 32 formed in line with the operating part 1 so as to be able to move forward and backward, and has three sealing O-rings 33, 34.3 on its outer periphery.
5 is installed, and the upper two O rings 33.34
A communication groove 36 is formed in the side wall between the two, and a communication hole 38 communicating with the forceps insertion hole 37 is bored.

また、シリンダ32の口元に螺着されたキャップ39に
コイルスプリング40で内方に押されたクリック用の鋼
球41が装着されており、一方、切換弁31の上側には
断面V字状の2つの円周溝42.43が形成されている
。そして切換弁31が引き出されて鋼球41が奥側の円
周溝43と係合した状態では、吸引管路3の開口が0リ
ング34及び35の間で閉塞され、切換弁31が押し込
まれて鋼球41が上端側の円周溝42と係合した状態で
は、吸引管路3の開口が連通溝36及び連通孔37を通
して鉗子チャンネルと連通ずる。15は中央部にスリッ
ト14が形成されたゴム製の鉗子栓である。
Further, a click steel ball 41 pushed inward by a coil spring 40 is attached to a cap 39 screwed onto the mouth of the cylinder 32, while a V-shaped cross section is mounted on the upper side of the switching valve 31. Two circumferential grooves 42, 43 are formed. When the switching valve 31 is pulled out and the steel ball 41 engages with the circumferential groove 43 on the back side, the opening of the suction pipe 3 is closed between the O-rings 34 and 35, and the switching valve 31 is pushed in. When the steel ball 41 is engaged with the circumferential groove 42 on the upper end side, the opening of the suction pipe 3 communicates with the forceps channel through the communication groove 36 and the communication hole 37. 15 is a rubber forceps plug with a slit 14 formed in the center.

尚、上記各実施例において、鉗子チャンネルは2つ設け
たが、本発明はこれに限定されるものではなく、鉗子チ
ャンネルの数は幾つであってもよい。
In each of the above embodiments, two forceps channels are provided, but the present invention is not limited to this, and the number of forceps channels may be any number.

[発明の効果] 本発明の内視鏡の吸引管路切換装置によれば、管路切換
手段を鉗子チャンネルの各挿入口部に設けたので、各鉗
子チャンネルが各々吸引管路と連通しているか否かを瞬
時に判断でき、したがって内視鏡的処置を迅速かつ正確
に行うことができる。また処置具を進退操作するその手
元で吸引管路の切換を行うことができるので、管路切換
の操作性も従来に比べて格段に優れている。
[Effects of the Invention] According to the suction line switching device for an endoscope of the present invention, since the line switching means is provided at each insertion port of the forceps channel, each forceps channel communicates with the suction line. It can be instantly determined whether or not the patient is present, and therefore endoscopic treatment can be performed quickly and accurately. In addition, since the suction line can be switched at the same time as the treatment instrument is moved forward and backward, the operability of switching the line is also much better than in the past.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明の第1の実施例の断面図、第2図はその
実施例を装備した内視鏡の略示図、第3図は本発明の第
2の実施例の断面図である。 1・・・操作部、2・・・吸引装置、3・・・吸引管路
、4a、4b・・・鉗子チャンネル、6a、6b・・・
挿入口、12.37・・・鉗子挿通孔、13.31・・
・切換 。 弁、14・・・スリット、15・・・鉗子栓、20.3
7・・・連通孔、21・・・摘み部、36・・・連通溝
Fig. 1 is a sectional view of a first embodiment of the present invention, Fig. 2 is a schematic diagram of an endoscope equipped with the embodiment, and Fig. 3 is a sectional view of a second embodiment of the invention. be. DESCRIPTION OF SYMBOLS 1... Operation part, 2... Suction device, 3... Suction pipe line, 4a, 4b... Forceps channel, 6a, 6b...
Insertion port, 12.37... Forceps insertion hole, 13.31...
·Switching . Valve, 14... Slit, 15... Forceps plug, 20.3
7...Communication hole, 21...Knob portion, 36...Communication groove.

Claims (1)

【特許請求の範囲】 1、吸引装置に接続された複数の鉗子チャンネルを有し
、各鉗子チャンネルの挿入口が操作部に各々設けられた
内視鏡において、 吸引装置と各鉗子チャンネルとの間の管路を個々に選択
的に連通又は閉塞する管路切換手段を、各挿入口部に設
けたことを特徴とする内視鏡の吸引管路切換装置。 2、上記の各管路切換手段が、内視鏡の操作部に互いに
独立して突設されている特許請求の範囲第1項記載の内
視鏡の吸引管路切換装置。 3、上記の各管路切換手段が、内視鏡の操作部の下部に
設けられている特許請求の範囲第1項又は第2項記載の
内視鏡の吸引管路切換装置。
[Scope of Claims] 1. In an endoscope having a plurality of forceps channels connected to a suction device, and in which an insertion port for each forceps channel is provided in the operation section, between the suction device and each forceps channel. 1. A suction line switching device for an endoscope, characterized in that each insertion port is provided with a line switching means that selectively connects or closes the individual lines. 2. The suction line switching device for an endoscope according to claim 1, wherein each of the above-mentioned line switching means is provided to protrude independently from the operating section of the endoscope. 3. The suction line switching device for an endoscope according to claim 1 or 2, wherein each of the above-mentioned line switching means is provided at a lower part of the operating section of the endoscope.
JP61246955A 1986-10-17 1986-10-17 Suction pipeline change-over device of endoscope Pending JPS6399834A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP61246955A JPS6399834A (en) 1986-10-17 1986-10-17 Suction pipeline change-over device of endoscope

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61246955A JPS6399834A (en) 1986-10-17 1986-10-17 Suction pipeline change-over device of endoscope

Publications (1)

Publication Number Publication Date
JPS6399834A true JPS6399834A (en) 1988-05-02

Family

ID=17156215

Family Applications (1)

Application Number Title Priority Date Filing Date
JP61246955A Pending JPS6399834A (en) 1986-10-17 1986-10-17 Suction pipeline change-over device of endoscope

Country Status (1)

Country Link
JP (1) JPS6399834A (en)

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