JP2005137423A - External channel for endoscope and branch member for external channel - Google Patents

External channel for endoscope and branch member for external channel Download PDF

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JP2005137423A
JP2005137423A JP2003374353A JP2003374353A JP2005137423A JP 2005137423 A JP2005137423 A JP 2005137423A JP 2003374353 A JP2003374353 A JP 2003374353A JP 2003374353 A JP2003374353 A JP 2003374353A JP 2005137423 A JP2005137423 A JP 2005137423A
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portion
channel
endoscope
external channel
embodiment
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Tsutomu Ishiguro
Takahiro Kishi
Yasuto Kura
Toshio Nakamura
Akira Suzuki
俊夫 中村
康人 倉
孝浩 岸
努 石黒
明 鈴木
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Olympus Corp
オリンパス株式会社
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a external channel capable of simultaneously performing suction operation and treatment tool operation by one channel and making quicker and higher-grade treatment and diagnosing possible. <P>SOLUTION: The external channel has a channel portion 35 arranged along an insertion portion 5 of an endoscope 3 and a branch portion 31 arranged at the base end of the channel portion 35 and where a first inner channel and a second inner channel communicating with an inner channel 35a formed at the channel portion 35 are formed. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

本発明は、各種処置具を挿入したり、体腔内の血液や体液を吸引するための、内視鏡用の外付けチャンネルに関するものである。 The present invention, insert various treatment instruments, for sucking the blood and body fluids in the body cavity, it relates to external channel for an endoscope.

今日、治療内容の高度化、多様化に伴い、人体の消化管内に挿入する内視鏡の用途は診断から治療へと、その適応は拡大してきている。 Today, advanced treatment contents, with the diversification and the application diagnostic endoscope to be inserted into a human digestive tract to treat, the adaptation has expanded. 一般に、内視鏡を用いてポリープや粘膜の切除または止血、生検等の処置を行う際には、内視鏡内に設けられたチャンネル内に内視鏡用処置具を挿入し、この処置具を体腔内の目的の部位にまで案内することにより、上記各種処置を行っている。 In general, ablation or hemostatic polyps or mucous membrane using an endoscope, when performing procedures such as a biopsy, insert the endoscopic treatment instrument in a channel provided in the endoscope, the treatment by guiding the tool to the target site within the body cavity, it is subjected to the various treatments. また、このチャンネルは体腔内の血液や体液を吸引回収するための管路としても利用されている。 Further, this channel is also used as a conduit for sucking blood collected and body fluids in the body cavity.

しかし、内視鏡の挿入部内にはチャンネルだけでなくCCD等の他の部材を設ける必要があるため、チャンネルだけを大きくすることができない。 However, since the insertion portion of the endoscope it is necessary to provide another member such as a CCD well channel can not be only a large channel. したがって、例えば、大量出血症例等の処置を行う場合、出血した血液を病変部から速やかに除去する必要があるが、通常の内視鏡に設けられたチャンネルだけを利用したのでは、吸引力が不足して速やかな止血処置に支障をきたす場合がある。 Thus, for example, in the case of performing treatment such hemorrhaging cases, it is necessary to quickly remove hemorrhagic blood from the lesion, just from using a channel provided in the conventional endoscope, the suction force is there is a case in which an obstacle to rapid hemostasis in short supply. そのうえ、上記処置具は、内視鏡本体に設けられたチャンネル内に通さなければならないため、そのチャンネルの内径よりも大きな処置具を使用することができないという問題もあった。 Moreover, the treatment tool, since it must pass in a channel provided in the endoscope main body, there is a problem that it is impossible to use a large treatment instrument than the inner diameter of the channel.

従来、これらの問題を解決するために、内視鏡内に設けられるチャンネルとは別個に、内視鏡の挿入部の外周に、一つの外付けチャンネルを設けたものが提案されている。 Conventionally, in order to solve these problems, separately from the channel provided in the endoscope, the outer periphery of the insertion portion of the endoscope, which is provided with one external channel has been proposed. (例えば、特許文献1参照)。 (E.g., see Patent Document 1). この外付けチャンネルを、処置具による処置に利用するときは、外付けチャンネル一端側の開口部から、他端側開口部に向けて処置具を挿入し、この一端側の開口部内から延びる処置具用操作部を操作することにより、所定の処置を行うようになっている。 The external channel, when utilizing the treatment with the treatment instrument from the opening of the external channel one end, inserting the treatment tool toward the other end side opening, the treatment instrument extending from the opening of the one end by operating the use operation unit, and performs a predetermined action. 一方、吸引操作に利用するときは、外付けチャンネルの上記一端側の開口部を吸引装置等に接続することにより、血液等を吸引するようになっている。 Meanwhile, when utilizing the suction operation, by connecting the opening of the one end side of the external channel to a suction device or the like, so as to suck the blood or the like.
この発明によれば、内視鏡挿入部内のチャンネルによる吸引と合わせて、外付けチャンネルを利用して吸引操作を行うことにより、吸引効率を向上させることができる。 According to the invention, in conjunction with the suction by the channel in the endoscope insertion portion, by performing suction operation using the external channel, thereby improving the suction efficiency. また、外付けチャンネルの径を大きく取れば、それだけ大きな処置具を使用することができる。 Further, taking a large diameter of the external channel can be used correspondingly large treatment tool.
特開2002−330928号公報 JP 2002-330928 JP

しかしながら、上記のような構成によると、一つの外付けチャンネルでは、吸引操作か処置具による処置かを選択的に行わなければならず、両者を同時に行うことはできない。 However, according to the above configuration, in one external channel it must selectively performed whether treatment with the suction operation or treatment instrument, can not be performed simultaneously with each other. そのため、大きな処置具を使用しなければならないときには、従来の内視鏡のチャンネルだけしか吸引に使用することができないので、従来と同様、吸引効率の向上を図ることはできなかった。 Therefore, when you have to use a large treatment tool, since it can not only channel of a conventional endoscope used for suction, as in the conventional, it was not possible to improve the suction efficiency. 一方、吸引効率を向上させる必要があるときには、外付けチャンネルを吸引専用にしなければならないため、大きな処置具を使用することができないという問題があった。 On the other hand, when it is necessary to improve the suction efficiency, because it must external channel to the suction only, and it is impossible to use a large treatment tool. これらに対応するため外付けチャンネルの数を増やすことも考えられるが、体腔内に挿入される関係上、外付けチャンネルの数を増やして、挿入される部分が大型化してしまうのは好ましくない。 It is conceivable to increase the number of external channels to address these, the relationship to be inserted into a body cavity, to increase the number of external channels, it is not preferable portion inserted becomes large. また、近年の治療内容の高度化により、これら処置用のチャンネルに求められる要求も多様化しており、それら要請に応える必要もある。 Also, the sophistication of recent therapeutic regimen, demands made on channel for these treatments are also diversified, there is also a need to meet those requirements.

本発明は、このような事情に鑑みてなされたものであって、一つのチャンネルだけで、吸引操作と処置具操作とを同時に行うことができ、より迅速かつ高度な治療、診断を可能とする外付けチャンネルを提供することを目的とする。 The present invention was made in view of such circumstances, only one channel, it is possible to perform suction operations and treatment instrument operation and at the same time, faster and advanced treatment, to allow diagnosis an object of the present invention is to provide an external channel.

上記課題を解決するために、本発明は以下の手段を提供する。 In order to solve the above problems, the present invention provides the following means.
請求項1に係る発明は、内視鏡の挿入部に沿って配されるチャンネル部と、このチャンネル部の基端部に設けられ、当該チャンネル部に形成された内部通路に連通する第一の内部通路及び第二の内部通路が形成してある分岐部とを具備することを特徴とする。 The invention according to claim 1 includes a channel portion that is disposed along the insertion portion of the endoscope, disposed at the proximal end of the channel portion, the first communicating with the inner passage formed in the channel section characterized by comprising a branch unit interior passage and the second internal passage is formed.

この発明に係る外付けチャンネルによれば、例えば、第一の内部通路の端部からチャンネル部の先端側に向けて処置具を挿入するとともに、第二の内部通路側を吸引装置に接続する。 According to external channel according to the present invention, for example, with inserting a treatment tool toward the leading end side of the channel portion from the end portion of the first interior passageway, connecting the second internal passage side to a suction device. そして、治療に際して、前記処置具の処置部分をチャンネル部の先端側からのぞかせ、前記第一の内部通路の端部から延びる処置具の操作部分を操作することにより、所定の処置が行われる。 Then, in the treatment, poking the treatment portion of the treatment instrument from the distal end side of the channel portion, by operating the operation portion of the treatment tool extending from an end portion of the first interior passageway, the predetermined treatment is performed. このとき、吸引装置を駆動することにより、チャンネル部先端側から、血液や体液が吸い込まれ、これら液体が分岐部において分岐させられ、第二の内部通路を経て吸引装置に取り込まれる。 At this time, by driving the suction device, from the channel tip end, sucked blood and body fluids, they liquid is caused to branch at the branch portion, is taken into the suction device through the second interior passageway.
これにより、一つのチャンネル部だけで、処置具による処置と吸引操作とを同時に行うことが可能となる。 Thus, only one channel portion, it is possible to perform the treatment and the suction operation by the treatment tool at the same time.

請求項2に係る発明は、請求項1に記載の外付けチャンネルにおいて、前記第二の内部通路が、前記第一の内部通路から分岐するものであることを特徴とする。 The invention according to claim 2 is the external channel according to claim 1, wherein the second inner passage, and characterized in that branching from the first interior passageway.
この発明に係る外付けチャンネルによれば、チャンネル部に形成された内部通路に、前記第一の内部通路が接続され、前記第二の内部通路によって、前記第一の内部通路が分岐される。 According to external channel according to the present invention, the inner passage formed in the channel portion, the first interior passageway is connected, by the second interior passageway, the first interior passageway is branched.
これにより、吸引した血液等を容易に分岐することができるとともに、分岐部の構造を簡易に構成することが可能となる。 Thus, it is possible to easily branch the aspirated blood and the like, it is possible to configure the structure of the branch portion easily.

請求項3に係る発明は、内視鏡の挿入部に沿って配される外付けチャンネルの基端部に取り付けられるものであって、一端側及び他端側にて開口する、第一の内部通路と第二の内部通路とが形成してあることを特徴とする。 Invention, which is attached to the proximal end of the external channels arranged along the insertion portion of the endoscope, opens at one end and the other end, the first internal according to claim 3 characterized in that the passage and the second internal passage is formed.
この発明に係る外付けチャンネルによれば、請求項1と同様の効果を奏することが可能となる。 According to external channel according to the present invention, it is possible to achieve the same effect as claim 1.

本発明によれば、第一、第二の内部通路を有する分岐部を備えていることから、例えば、第一の内部通路の後端から、チャンネル部先端に向けて処置具を挿入すると同時に、第二の内部通路を吸引装置に接続することができ、一つの外付けチャンネルだけで、処置具による処置と吸引操作とを同時に行うことが可能となる。 According to the present invention, first, since it has a branch portion having a second inner passage, for example, from the rear end of the first interior passageway, inserting a treatment tool toward the channel tip simultaneously, it is possible to connect the second internal passage to a suction device, only one external channel, it is possible to perform the treatment and the suction operation by the treatment tool at the same time. そのため、チャンネル部の内部通路の径に合わせた大きな処置具を使用しつつ、吸引効率を向上させることが可能になるとともに、内視鏡と合わせて使用されるため、より迅速かつ高度な治療、診断が可能となる。 Therefore, while using a large treatment instrument tailored to the diameter of the inner passage of the channel section, since it becomes possible to improve the suction efficiency is used in conjunction with an endoscope, faster and more sophisticated treatments, diagnosis is possible.

(実施例1) (Example 1)
以下、本発明の第1実施例における外付けチャンネルについて、図面を参照して説明する。 Hereinafter, the external channel in the first embodiment of the present invention will be described with reference to the drawings.
図1は、本発明に係る外付けチャンネルを内視鏡に取り付けた様子を示したものである。 Figure 1 is a diagram showing a state attached to an endoscope external channel according to the present invention. 図1において、符号2は本実施例における外付けチャンネルを示しており、符号3は内視鏡を示している。 In Figure 1, reference numeral 2 denotes an external channel in this embodiment, reference numeral 3 denotes an endoscope. これら外付けチャンネル2と内視鏡3とにより、内視鏡システム1を構成している。 By these external channels 2 and the endoscope 3, constitute the endoscope system 1.
最初に、本発明に係る外付けチャンネル2を取り付ける内視鏡3について説明する。 First, a description will be given of the endoscope 3 to attach the external channel 2 according to the present invention.
内視鏡3は、内視鏡本体としての本体部4と、体腔内に挿入される内視鏡挿入部(挿入部)5とを備えている。 The endoscope 3 includes a body portion 4 as the endoscope body, the endoscope insertion portion to be inserted into a body cavity (insertion portion) and a 5.

本体部4は、操作者が手に持って内視鏡3の各種操作を行う操作部8と、操作者が手で把持するための把持部6と、内視鏡挿入部5を接続するためのオレドメ部7を有している。 The body 4 includes an operation unit 8 for performing various operations of the endoscope 3 operator in hand, the grip part 6 for the operator to manually grasped, for connecting the endoscope insertion portion 5 It has a Oredome portion 7.
操作部8には、送気・送水機能を制御するための送気送水バルブ9と、吸引機能を制御するための吸引切替バルブ10と、内視鏡挿入部5を上下左右方向に移動させるアングル操作部18と、内視鏡システム1とともに使用される各種周辺機器の制御を行うリモートスイッチ16とが設けられている。 The operation unit 8 moves the air water valve 9 for controlling the gas supply and water supply function, a suction switch valve 10 for controlling the suction function, the endoscope insertion portion 5 in the vertical and horizontal directions Angle an operation unit 18, and the remote switch 16 is provided to control the various peripheral devices used with the endoscope system 1. また、操作部8には、吸引チャンネル20aや、図示しない送気送水チャンネル、電気ケーブルなどが内蔵されたユニバーサルコード20が接続されている。 Further, the operation unit 8, and the suction channel 20a, air and water supply channels, not shown, the universal cord 20 to an electric cable is built are connected. そして、内視鏡挿入部5から吸引された血液、体液等が吸引チャンネル20aを経て排出されるようになっている。 The blood sucked from the endoscope insertion portion 5, the body fluid or the like is adapted to be discharged through the suction channel 20a.

操作部8の前方には、上記の把持部6が連続して形成されており、この把持部6は、操作者が把持しやすいように段差を備えた段部6aと、処置具11を内視鏡挿入部5の先端に向けて挿入するための鉗子口21とを有している。 In front of the operation unit 8, the inner is formed in said grip portion 6 are continuous, the gripper 6 has a stepped portion 6a of the operator with a step so as to facilitate gripping, the therapeutic instrument 11 and a forceps port 21 for insertion toward the tip of the endoscope insertion portion 5. 鉗子口21には、この鉗子口21を塞ぎ、内視鏡挿入部5を逆流した液体が内視鏡3の外部に飛沫するのを防止するための内視鏡鉗子栓22が取り付けられている。 The forceps port 21, closing the forceps port 21, the endoscope forceps plug 22 for liquid flowing back to the endoscope insertion portion 5 is prevented from splashing out of the endoscope 3 is attached . そして、把持部6の前方には、円錐台状の上記のオレドメ部7が、その円錐の先端部を操作部8と反対方向に向けて取り付けられている。 Then, in front of the grip portion 6, the frustoconical above Oredome portion 7 is attached toward the distal end of the cone in the direction opposite to the operation portion 8. オレドメ部7は、内視鏡挿入部5の座屈を防止するためのものである。 Oredome section 7 is for preventing the buckling of the endoscope insertion portion 5. このオレドメ部7の先端に、管状に延びる内視鏡挿入部5が取り付けられている。 This tip of Oredome portion 7, the endoscope insertion portion 5 extending tubular is attached.

内視鏡挿入部5の内部には、不図示の光源措置から導出される光を観察目的部位に照射するための照明光学系23と、不図示のビデオプロセッサに電気ケーブルにより接続されたCCDを内蔵し、目的部位を観察する際に使用する対物光学系24と、図示しない送気ポンプからの空気圧を利用して内視鏡挿入部5の先端部分において送気・排水を行う際に使用される送気・送水ノズル25と、開口部26aを有し、図示しない吸引装置に接続される吸引チャンネル26とが設けられ、これらが内視鏡挿入部5の先端面に揃えられて配置されている。 Inside of the endoscope insertion portion 5, an illumination optical system 23 for irradiating the light derived from the light source measures not shown in the observation target site, the connected CCD by an electrical cable to the video processor (not shown) built, the objective optical system 24 to be used to observe the target site, is used in performing the air supply and drainage at the tip portion of the endoscope insertion portion 5 by using the air pressure from the air pump (not shown) that the gas supply and water supply nozzle 25 has an opening 26a, a suction channel 26 connected to a suction device (not shown) is provided, it is arranged such that aligned with the distal end surface of the endoscope insertion portion 5 there. また、内視鏡挿入部5の先端部近傍には、湾曲部28が設けられ、アングル操作部18を操作することにより、湾曲部28を屈曲させ、対物光学系24を目的部位に向けることができるようになっている。 Further, in the vicinity of the distal end portion of the endoscope insertion portion 5, curved portion 28 is provided, by operating the angle control member 18, by bending the bending portion 28, is to direct the objective optical system 24 to the target site It has become possible way.

次に、本実施例における外付けチャンネル2について説明する。 Next, a description will be given external channel 2 in the present embodiment.
外付けチャンネル2は、体腔内に挿入される外付けチャンネル挿入部30と、外付けチャンネル挿入部30に接続された分岐部31とを備えている。 External channel 2 is provided with external channel insertion portion 30 to be inserted into a body cavity, and a branch portion 31 connected to the external channel insertion portion 30.
外付けチャンネル挿入部30は、内部通路35aを有する管状の可撓性チューブ(チャンネル部)35と、可撓性チューブ35を保持する複数の保持部36とを有している。 External channel insertion portion 30 includes a flexible tube (channel portion) 35 of the tubular having an interior passage 35a, and a plurality of holding portions 36 for holding the flexible tube 35.

可撓性チューブ35の先端には、開口部34が形成されており、この開口部34から、血液、体液等の液体が吸引され、そして同他端から挿入された処置具11を出現させるようになっている。 The distal end of the flexible tube 35, an opening 34 is formed, through the opening 34, the blood, the liquid such as body fluid is suctioned, and to cause the appearance of the treatment instrument 11 inserted from the other end It has become.
保持部36は、図2に示すように、柱状に形成され、その長さ方向に交差する方向の断面は略半円状に形成されている。 Holding unit 36, as shown in FIG. 2, is formed in a columnar shape, the cross section in a direction intersecting with the length direction is formed in a substantially semicircular shape. そして、同長さ方向に貫通する貫通孔36aが形成されており、可撓性チューブ35が通されるようになっている。 Then, a through hole 36a is formed to penetrate in the same longitudinal direction, the flexible tube 35 is adapted to be passed through. さらに、保持部36の外表面は、例えば、高分子吸収性材からなる弾性体36bにより形成され、貫通孔36aと弾性体36bとの間は、金属や硬質樹脂により形成される硬質部36cにより形成されている。 Furthermore, the outer surface of the holding portion 36 is formed, for example, an elastic member 36b made of a polymeric absorbent material, between the through hole 36a and the elastic body 36b is a hard portion 36c which is formed by metal or hard resin It is formed. これにより、硬質部36cにより剛性を確保するとともに、弾性体36bにより血液、体液が速やかに吸収されて、内視鏡3を使用するときの術野が速やかに確保されるようになっている。 Accordingly, while securing the rigidity of a hard portion 36c, blood, body fluid is quickly absorbed by the elastic body 36b, operative field when using the endoscope 3 is adapted to be quickly secured. また、弾性体36bにより、粘膜への損傷を最小限に抑えるようになっている。 Also, by the elastic body 36b, which is to minimize the damage to the mucous membranes.

このような構成のもと、外付けチャンネル挿入部30は、可撓性チューブ35の先端面の開口部34と、内視鏡挿入部5の開口部26aとが揃えられて、保持部36を介して内視鏡挿入部5の外周部に固定されている。 With such a configuration, the external channel insertion portion 30 includes an opening 34 of the front end surface of the flexible tube 35, and an opening 26a of the endoscope insertion portion 5 are aligned, the holder 36 and it is fixed to the outer periphery of the endoscope insertion portion 5 via. そして、保持部36を内視鏡挿入部5の外表面に複数箇所設けることにより、可撓性チューブ35が内視鏡挿入部5に沿って配され、内視鏡挿入部5および外付けチャンネル挿入部30の体腔内へのスムーズな挿入が可能となっている。 Then, by providing a plurality of locations of the holding portion 36 on the outer surface of the endoscope insertion portion 5, the flexible tube 35 is arranged along the endoscope insertion portion 5, the endoscope insertion portion 5 and the external channel smooth insertion into a body cavity of the insertion portion 30 is possible.

可撓性チューブ35の基端部35bには、上記の分岐部31が接続されており、分岐部31は、固定具37を介して、オレドメ部7の下方に固定されている。 Flexible proximal end portion 35b of the tube 35, and the branch portion 31 described above is connected, the branch portion 31 via the fastener 37, is fixed below the Oredome portion 7.
分岐部31は、図3および図4に示すように、水平内部通路(第一の内部通路)40cを有する水平管部40と、垂直内部通路(第二の内部通路)41bを有する垂直管部41とが直交するようにT字状に形成されており、水平内部通路40cの一端の接続口40bには、接続部42を介して、可撓性チューブ35の内部通路35aが接続されている。 Branch unit 31, as shown in FIGS. 3 and 4, a horizontal pipe section 40 having a horizontal internal passage (the first interior passageway) 40c, a vertical pipe section having a vertical inner passage (a second inner passage) 41b 41 and are formed in a T-shape so as to be perpendicular to one end of the connection port 40b of the horizontal internal passage 40c, through a connection 42, the interior passageway 35a of the flexible tube 35 is connected . これにより、内部通路35aが2つの通路に分岐されるようになっている。 Thus, so that the internal passage 35a is branched into two passages. また、水平内部通路40cの他端には、連通口40aが設けられており、また前記他端の縁部に、水平管部40の軸方向と交差する方向に延びる取付部44が形成されている。 Further, the other end of the horizontal internal passage 40c, is provided with communication port 40a, also an edge of the other end, mounting portion 44 extending in a direction crossing the axial direction of the horizontal tube portion 40 is formed there. そしてこの取付部44を介して、処置具11を挿入するためのスリット46を備える鉗子栓45が取り付けられている。 And through the mounting portion 44, the forceps plug 45 with a slit 46 for inserting the treatment instrument 11 is mounted. これにより、水平内部通路40cの前記他端は水密状態とされるとともに、スリット46を広げ、そのすき間から開口部34に向けて処置具11を挿入することができるようになっている。 Thus, the other end of the horizontal inner passage 40c together with the watertight state, expanding the slit 46, thereby making it possible to insert a treatment instrument 11 toward from the gap into the opening 34.
また水平管部40上の取付部44側の他端の近傍には、蛇腹状の可動部43が設けられており、この可動部43を動かすことにより、鉗子栓45の向けられる方向を任意に変えることができるようになっている。 Also in the vicinity of the mounting portion 44 side of the horizontal pipe section 40 and the other end, the bellows-like movable portion 43 is provided, by moving the movable portion 43, optionally the direction directed the forceps plug 45 so that the can be changed.

さらに、垂直内部通路41bの先端には、連通口41aが設けられており、接続部48を介して、図1に示す吸引チューブ32の内部通路が接続されている。 Furthermore, the tip of the vertical internal passage 41b, is provided with the communication opening 41a, through the connecting portion 48, the internal passage of the suction tube 32 is connected as shown in FIG. 吸引チューブ32の端部には、不図示の吸引装置が接続されており、この吸引装置を作動させることにより、開口部34から内部通路35a、水平内部通路40c、垂直内部通路41bおよび吸引チューブ32の内部通路を介して、血液等の吸引が行われるようになっている。 The end of the suction tube 32, a suction device (not shown) is connected, by operating the suction device, the internal passage 35a through the opening 34, the horizontal internal passage 40c, the vertical internal passage 41b and the suction tube 32 through the internal passage of, so that the aspiration of the blood or the like is performed.
また、水平管部40には、分岐部31を保持する管路保持部47が、図3中の矢印Aに示すように水平管部40の軸方向に摺動可能に、さらに図3中の矢印Bに示すように同軸を中心として回動可能に取り付けられている。 Further, the horizontal pipe section 40, the conduit retaining portion 47 for holding the branch portion 31, slidably in the axial direction of the horizontal pipe section 40 as shown by an arrow A in FIG. 3, further in FIG. 3 It is attached rotatably around a coaxial as shown by the arrow B. 管路保持部47は、固定具37と一体的に形成されており、固定具37を内視鏡3に取り付けることにより、分岐部31を摺動または回動可能に保持するようになっている。 Conduit retaining portion 47 is a fixture 37 integrally formed, by attaching the fastener 37 to the endoscope 3 so as to retain the branch portion 31 sliding or rotatably .

次に、このように構成された本実施例における外付けチャンネル2の作用について説明する。 Next, the operation of the external channel 2 in the present embodiment having such a configuration.
まず、外付けチャンネル2の保持部36を両面性粘着部材、サージカルテープ、糸などの固定手段を用いて、内視鏡挿入部5の外周面に複数個固定し、保持部36の貫通孔36aに可撓性チューブ35を挿入する。 First, the holding portion 36 of the external channel 2 sided adhesive member, surgical tape, using a fixing means such as thread, multiple fixed to the outer peripheral surface of the endoscope insertion portion 5, the through hole 36a of the holding portion 36 inserting a flexible tube 35. そして、分岐部31の取り付けられた固定具37をオレドメ部7に固定する。 Then, to secure the fixture 37 attached branching unit 31 to Oredome unit 7. これにより、外付けチャンネル2が内視鏡3に取り付けられる。 Thus, external channel 2 is attached to the endoscope 3. そして、鉗子栓45のスリット46から処置具11を挿入し、必要に応じて可動部43を動かしながら、処置具11を押し込むことにより、開口部34の近傍にまで、処置具11の処置部分を送り込む。 Then, insert the treatment instrument 11 from the slit 46 of the forceps plug 45, while moving the movable portion 43 as required, by pushing the treatment instrument 11, to the vicinity of the opening 34, the treatment portion of the treatment instrument 11 feed.

この状態から、操作者が把持部6に手を当て、内視鏡システム1を把持し、内視鏡挿入部5および外付けチャンネル挿入部30を患者の体腔内に挿入する。 In this state, the operator placing a hand on the grip portion 6 to grip the endoscope system 1, the endoscope insertion portion 5 and the external channel insertion portion 30 is inserted into a body cavity of a patient. そして目的の部位の近傍にまで両挿入部5,30の先端を送り、アングル操作部18を操作することにより、両挿入部5,30の先端を目的の部位に向ける。 And feeding the tip of both the insertion portion 5,30 to the vicinity of the site of interest, by operating the angle control member 18 directs the distal end of both the insertion portion 5,30 to the site of interest. ここから照明光学系23を駆動し目的の部位に向けて光を照射し、対物光学系24を介して、不図示のモニターに目的の部位を写し出す。 Driving the illumination optical system 23 here irradiating light toward the target site, via an objective optical system 24, Projects the site of interest on the monitor (not shown). 操作者は、このモニターを見ながら、送気・送水バルブ9、吸引切替バルブ10、リモートスイッチ16等を操作し、各種診断、治療を行う。 Operator while viewing the monitor, gas supply and water supply valve 9, the suction switch valve 10, operates the remote switches 16, and performs various types of diagnosis, treatment.

本実施例における外付けチャンネル2においては、以下のようにして各種処置、吸引が行われる。 In external channel 2 in the present embodiment, various treatments, suction is performed as follows.
モニターを見ながら、鉗子栓45のスリット46内部から延びる処置具11を押し込み、開口部34から処置具11の処置部分を出現させる。 While watching the monitor, press the treatment instrument 11 which extends from the inside slit 46 of the forceps plug 45, to reveal treatment portion of the treatment instrument 11 from opening 34. そして、処置具11を操作することにより、目的部位の止血等の処置を行う。 Then, by operating the treatment instrument 11 performs the treatment of hemostasis, such as the desired site. このとき、吸引チューブ32に接続された吸引装置を駆動することにより、目的の部位から流れ出た血液が開口部34から吸引される。 At this time, by driving the connected suction device to the suction tube 32, the blood flowing out from the site of interest is sucked from the opening 34. 開口部34から吸引された血液は、内部通路35aを通り、水平内部通路40cまで流動させられる。 Aspirated blood from the opening 34 through the internal passage 35a, is caused to flow to a horizontal internal passage 40c. 水平内部通路40c内を通る血液は、吸引装置からの吸引力に加えて、その自重により、垂直内部通路41b内を降下し、吸引チューブ32の内部通路を経て吸引装置に吸引される。 Blood passing through the horizontal interior passageway 40c, in addition to the suction force from the suction device, by its own weight, it drops through the vertical internal passage 41b, is sucked into the suction device through the internal passage of the suction tube 32. この場合、血液が垂直内部通路41bを通り過ぎ、水平管部40の連通口40aに向かったとしても、鉗子栓45により連通口40aが塞がれているため、そこから血液が流出することはない。 In this case, blood past the vertical internal passage 41b, even toward the communication port 40a of the horizontal pipe section 40, since the communication port 40a is blocked by a forceps plug 45, the blood from which does not flow out .

また、これら一連の処置の間、吸引チューブ32が処置の邪魔になったときは、分岐部31を管路保持部47を介して摺動または回転させることにより、吸引チューブ32を避けながら所定の処置を行う。 Further, during the series of treatments, the suction tube 32 when I in the way of treatment, by sliding or rotating through the branch portion 31 duct holding section 47, predetermined while avoiding suction tube 32 the treatment is carried out. さらに、可動部43を動かすことにより、スリット46内から延びる処置具11の操作部を操作しやすい角度に向けて、所定の処置を行う。 Further, by moving the movable portion 43, toward the easy operation angle operation portion of the treatment instrument 11 which extends from the inside of the slit 46, performs a predetermined action.

以上より、本実施例における外付けチャンネル2によれば、分岐部31を備えていることから、一つの外付けチャンネル2だけで、処置具11による処置と、吸引作業とを同時に行うことができる。 From the above, according to the external channel 2 in the present embodiment, since it is provided with a branching section 31, by one only external channel 2, it can be performed and treatment with the treatment instrument 11, and a suction work concurrently . そのため、可撓性チューブの径に合わせた大きな処置具11を使用しつつも、吸引効率を向上させることができ、内視鏡3の吸引チャンネル26と合わせて利用することにより、より高度かつ迅速な治療、診断を行うことができる。 Therefore, while using a large treatment instrument 11 to match the diameter of the flexible tubing also makes it possible to improve the suction efficiency, by utilizing in conjunction with the suction channel 26 of the endoscope 3, more sophisticated and faster do not therapy, it is possible to make a diagnosis.

また、分岐部31が固定具37により内視鏡3に固定されることから、外付けチャンネル2の端部が邪魔にならず、内視鏡3や処置具11の操作性を向上させることができる。 Further, since the branch portion 31 is fixed to the endoscope 3 by fasteners 37, not the end of the external channel 2 is disturbed, it is possible to improve the operability of the endoscope 3 and the treatment instrument 11 it can.
また、水平管部40に可動部43を設けたことから、水平管部40の端部を任意の方向に向けることができ、操作者の邪魔にならず、処置具11を操作しやすい任意の方向に管路を向けるように調整することができる。 Further, since the provision of the movable portion 43 in the horizontal tube section 40, it is possible to direct the end of the horizontal tube portion 40 in any direction, not to interfere with the operator, easily any operating the treatment instrument 11 it can be adjusted to direct the conduit in the direction. そのため、上記と同様、内視鏡3や処置具11の操作性を向上させることができる。 Therefore, as described above, it is possible to improve the operability of the endoscope 3 and the treatment instrument 11. また、スリット46に処置具11を挿入して開口部34までその処置具11を送り込むとき、必要に応じて可動部43を動かすことにより、挿入作業が容易になる。 Further, when feeding the treatment instrument 11 to the opening 34 by inserting the treatment tool 11 into the slit 46 by moving the movable portion 43 as needed, thereby facilitating the insertion operation. さらに、管路保持部47により分岐部31を摺動または回動させることができるため、これによっても内視鏡3や処置具11の操作性を向上させることができる。 Furthermore, since it is possible to slide or rotate the bifurcation 31 via line unit 47, whereby it is possible to improve the operability of the endoscope 3 and the treatment instrument 11 also.

さらに、分岐部31は、T字状に形成されているため、血液の自重を利用して、その血液をスムーズかつ確実に分岐させることができる。 Furthermore, branching unit 31, which is formed in a T-shape, the own weight of the blood, it is possible to branch the blood smoothly and reliably.
また、保持部36の外表面が弾性体36bにより形成されているため、弾性体36bにより、粘膜への損傷を最小限に抑えることができるとともに、血液、体液が速やかに吸収されて、内視鏡3を使用するときの術野を速やかに確保できる。 Further, since the outer surface of the holding portion 36 is formed by an elastic body 36b, the elastic body 36b, with damage to the mucous membrane can be minimized, blood, body fluid is absorbed quickly, endoscope the operative field when using a mirror 3 can be quickly secured.

(実施例2) (Example 2)
次に、本発明の第2の実施例について説明する。 Next, a description will be given of a second embodiment of the present invention.
図5は、本発明の第2の実施例を示したものである。 Figure 5 is a diagram showing a second embodiment of the present invention.
図5において、図1から図4に記載の構成要素と同一部分については同一符号を付し、その説明を省略する。 5 are denoted by the same reference numerals components identical parts according to FIGS. 1-4, description thereof is omitted.
この実施例と上記第1の実施例とは基本的構成は同一であり、以下の点において異なるものとなっている。 Basic structure as this embodiment and the first embodiment is identical, and has a different in the following points.
すなわち、本実施例においては、L字状のL字内部通路(第二の内部通路)41cを備えている。 That is, in this embodiment, includes an internal L-shaped L-shaped passage (second internal passage) 41c. L字内部通路41cは、その基端部41dと水平内部通路40cの端部40dとが揃えられて配置されている。 L-internal passage 41c is are arranged aligned with the end portion 40d of the base end portion 41d and the horizontal internal passage 40c.
このように構成される接続部31において、開口部34から吸引された血液は、内部通路35aを通り、L字内部通路41cおよび吸引チューブ32の内部通路を経て、吸引装置に吸引される。 In connection portion 31 thus configured, the sucked blood from the opening 34 through the internal passage 35a, through the internal passage of the L-shaped internal passage 41c and the suction tube 32, is sucked into the suction device.

以上より、本実施例によれば、実施例1と同様の効果を得ることができる。 As described above, according to this embodiment, it is possible to obtain the same effect as the first embodiment.

(実施例3) (Example 3)
次に、本発明の第3の実施例について説明する。 Next, a description will be given of a third embodiment of the present invention.
図6は、本発明の第3の実施例を示したものである。 Figure 6 is a diagram showing a third embodiment of the present invention.
図6において、図1から図4に記載の構成要素と同一部分については同一符号を付し、その説明を省略する。 6, same symbols are components identical parts according to FIGS. 1-4, description thereof is omitted.
この実施例と上記第1の実施例とは基本的構成は同一であり、以下の点において異なるものとなっている。 Basic structure as this embodiment and the first embodiment is identical, and has a different in the following points.
すなわち、本実施例においては、上記実施例における可動部43に代えて弾性チューブ60が設けられている。 That is, in this embodiment, the elastic tube 60 in place of the movable portion 43 in the above embodiment are provided. 弾性チューブ60は、その一端が、水平管部40に接続され、同他端には、口金部61を介して取付部44が形成されている。 Elastic tube 60 has its one end connected to the horizontal pipe section 40, in the other end, the mounting portion 44 is formed through the mouthpiece 61. そして、上記実施例と同様、取付部44に鉗子栓45が取り付けられるようになっている。 Then, similarly to the above embodiment, so that the forceps plug 45 is mounted to the mounting portion 44.

以上より、本実施例によれば、弾性チューブ60を任意の方向に曲げることができるので、実施例1と同様の効果を得ることができる。 As described above, according to this embodiment, it is possible to bend the elastic tube 60 in any direction, it is possible to obtain the same effect as the first embodiment.

(実施例4) (Example 4)
次に、本発明の第4の実施例について説明する。 Next, a description will be given of a fourth embodiment of the present invention.
図7および図8は、本発明の第4の実施例を示したものである。 7 and 8 shows a fourth embodiment of the present invention.
図7および図8において、図1から図4に記載の構成要素と同一部分については同一符号を付し、その説明を省略する。 7 and 8, the same reference numerals for the components the same parts as described in FIGS. 1-4, description thereof is omitted.
本実施例において、水平管部40の端部には、管路保持部47を介して曲げパイプ62が接続されている。 In this embodiment, the end of the horizontal pipe section 40, the pipe 62 bent through a conduit retaining portion 47 is connected. 曲げパイプ62と水平管部40との接続点には、環状のOリング63が取り付けられており、これにより水密を保持しつつ、曲げパイプ62を水平管部40の長さ方向に沿って延びる軸線を中心に回転させることができるようになっている。 The connection point of the bend pipe 62 and the horizontal pipe section 40, and an annular O-ring 63 is attached, thereby while maintaining the watertight extends along the bend pipe 62 in the longitudinal direction of the horizontal pipe section 40 and it is capable of rotating about the axis.

以上より、本実施例によれば、曲げパイプ62を回転させることにより、操作者の邪魔にならない任意の方向に設定することができる。 As described above, according to this embodiment, by rotating the bending pipe 62 can be set in any direction out of the way of the operator.

(実施例5) (Example 5)
次に、本発明の第5の実施例について説明する。 Next, a description will be given of a fifth embodiment of the present invention.
図9から図11は、本発明の第5の実施例を示したものである。 FIGS. 9-11 illustrates a fifth embodiment of the present invention.
本実施例においては、水平管部40の外周の、垂直管部41と接続口40bとの間に、水平管部40の長さ方向に交差する方向に向けられた2つの段差部68,69が、水平管部40の上下にわたって形成されている。 In this embodiment, the outer periphery of the horizontal pipe section 40, between the vertical pipe portion 41 and the connection port 40b, 2 two stepped portions oriented in a direction crossing the length direction of the horizontal pipe section 40 68, 69 There is, over the upper and lower horizontal pipe section 40. 両段差部68,69は薄い板状に形成されており、その内部は空洞になっている。 Both stepped portions 68, 69 is formed in a thin plate shape, the inside is hollow. 段差部68の一端には段差開口部68aが形成されており、段差部68,69の内部には、管内の液体の流れを調整する切替弁64が設けられている。 One end of the stepped portion 68 is stepped opening 68a is formed in the inside of the stepped portion 68, 69, the switching valve 64 for adjusting the flow of liquid in the tube is provided. この切替弁64は、板状に形成された略矩形の仕切板66を備えている。 The switching valve 64 has a substantially rectangular partition plate 66 formed in a plate shape.

仕切板66には、その長さ方向の一端に突起部66aが設けられ、突起部66aの近傍に仕切板連通路66bが形成されている。 The partition plate 66, the protrusion 66a is provided at one end of its length, the partition plate communicating passage 66b is formed in the vicinity of the protrusion 66a. この仕切板66が段差部68,69内に嵌め込まれることにより、仕切板66は両段差部68,69内において、その長さ方向に往復移動可能に支持されている。 This by the partition plate 66 is fitted into the stepped portion 68, the partition plate 66 in the both step portions 68 and 69 are reciprocally movable in its longitudinal direction. また、段差部69の下端と仕切板66の下端との間には付勢手段67が設置されており、これにより仕切板66は、常に上方に向けて付勢された状態となっている。 Between the lower ends of the partition plate 66 of the stepped portion 69 are installed urging means 67, thereby partitioning plate 66 is always in a state of being biased upward.

このような構成のもと、仕切板66を往復移動させると、その移動に合わせて、突起部66aが、段差開口部68aから、その外方に向けて突出し、またはその内方に没するようになっている。 Under this structure, when the partition plate 66 reciprocates in accordance with the movement thereof, the protrusion 66a is, the stepped opening 68a, protruding toward the outside or to submerge the inside thereof, It has become. そして、突起部66aが段差開口部68a内方に没した状態のときには、図11に示すように、仕切板連通路66bが水平管部40の管路の中央に一致する位置に配され、仕切板連通路66bを通して、液体が通過できるようになっている。 Then, in a state where the protrusion 66a is submerged inwardly stepped opening 68a, as shown in FIG. 11, is disposed at a position the partition plate communicating path 66b matches the center of the conduit of the horizontal pipe section 40, the partition through Itaren passage 66b, it is made to pass through the liquid. 一方、突起部66aが外方に突出した状態のときには、図10に示すように、仕切板連通路66bが水平管部40の管路とずらされて配されることにより、水平管部40内における液体の流れを遮断するようになっている。 On the other hand, in a state where the protruding portion 66a protrudes outwardly, as shown in FIG. 10, by the partition plate communicating path 66b is disposed to be offset with conduit horizontal pipe section 40, the horizontal pipe section 40 It is adapted to shut off the flow of the liquid in.

このように構成される分岐部31を固定具37によりオレドメ部7に固定すると、オレドメ部7の外面と突起部66aとが接触し、突起部66aが段差開口部68aの内方に押しやられる。 Thus the branch portion 31 configured to secure the Oredome part 7 by a fixture 37, in contact with the outer surface and the projection 66a of the Oredome part 7, the protrusion 66a is pushed inwardly of the stepped opening 68a. したがって、仕切板連通路66bは水平管部40の管路の中央に一致する位置に配され、吸引された血液等を通過させる。 Thus, the partition plate communicating passage 66b is disposed at a position matching the central conduit of the horizontal pipe section 40, to pass the aspirated blood and the like. また、分岐部31がオレドメ部7から外れた場合、付勢手段67の付勢力により、仕切板66が上方に移動させられ、そのため仕切板連通路66bが水平管部40の管路とずらされ、これによって血液の流れが遮断される。 Further, if the branch portion 31 deviates from Oredome unit 7, by the urging force of the urging means 67, the partition plate 66 is moved upward, therefore partition plate communicating passage 66b is shifted a conduit horizontal pipe section 40 It is thereby cut off the flow of blood.

以上より、本実施例によれば、吸引中に誤って分岐部31がオレドメ部7から外れてしまったとき、可撓性チューブ35と水平管部40、垂直管部41との連通が直ちに遮断され、血液を流れなくすることができる。 As described above, according to the present embodiment, when the branch unit 31 by mistake during aspiration had deviated from Oredome unit 7, the flexible tube 35 and the horizontal pipe section 40, the communication between the vertical pipe section 41 is immediately shut off is, it is possible to not flow blood. これにより、血液や体液が外部に漏れることを防止することができ、操作者の安全を確保することができる。 Thus, it is possible to prevent the blood or body fluids from leaking to the outside, it is possible to ensure the safety of the operator.

次に、本発明の第6の実施例について説明する。 Next, a description will be given of a sixth embodiment of the present invention.
図12は、本発明の第6の実施例を示したものである。 Figure 12 is a diagram showing a sixth embodiment of the present invention.
本実施例においては、内視鏡3の鉗子口21に分岐鉗子栓80が取り付けられている。 In the present embodiment, the branch forceps plug 80 into the forceps port 21 of the endoscope 3 is mounted. 分岐鉗子栓80は、互いに平行に配された外付けチャンネル用管路83と内視鏡用管路84とを備え、両管路83,84は、両者に直交して設けられた連通路85を介して相互に連通した状態になっている。 Branched forceps plug 80 is provided with an endoscope conduit 84 and external channel conduit 83 arranged parallel to each other, Ryokanro 83 and 84, communication passage 85 provided orthogonally to both It is in a state communicating with each other through a.

内視鏡用管路84の一端には、鉗子口21に取り付けるための鉗子口取付部82が設けられており、この鉗子口取付部82を介して分岐鉗子栓80が鉗子口21に取り付けられている。 At one end of the endoscope conduit 84, the forceps port mounting portion 82 for attachment to the forceps port 21 is provided with the branch forceps plug 80 is attached to the forceps port 21 through the forceps opening mounting portion 82 ing. また、外付けチャンネル用管路83の一端には、可撓性チューブ35を接続するためのチューブ取付部81が設けられており、このチューブ取付部81を介して外付けチャンネル2が取り付けられている。 Further, the one end of the external channel conduit 83, flexible tube 35 the tube attaching portion 81 for connecting is provided a and the external channel 2 is attached through the tube attaching portion 81 there. これにより、吸引チャンネル26と可撓性チューブ35が互いに連通した状態になっている。 Thus, the flexible tube 35 is in a state of communication with each other and the suction channel 26.
一方、上記両管路83,84の他端には、スリット86を有する鉗子栓キャップ87がそれぞれ取り付けられており、吸引チャンネル26および可撓性チューブ35内にそれぞれ処置具11を挿入することができるようになっている。 On the other hand, to the other end of the Ryokanro 83 and 84, a forceps plug cap 87 having a slit 86 is attached respectively, that each inserting the treatment instrument 11 to the suction channel 26 and the flexible tube 35 It has become possible way.

上記構成によれば、内視鏡3に設けられた吸引切替バルブ10を操作するだけで、吸引チャンネル26および可撓性チューブ35の両方を通じて、血液、体液等の液体が吸引される。 According to the above construction, only by operating the suction switch valve 10 provided in the endoscope 3, through both suction channels 26 and the flexible tube 35, the blood, the liquid such as body fluid is suctioned.
以上より、本実施例によれば、吸引チャンネル26および可撓性チューブ35を連通させているため、吸引効率を向上させるとともに、吸引操作を容易にすることができる。 As described above, according to this embodiment, since the communicated the suction channel 26 and the flexible tube 35, thereby improving the suction efficiency, can facilitate suction operation.

図13は、本発明の第7の実施例を示したものである。 Figure 13 is a diagram showing a seventh embodiment of the present invention.
図13において、図12に記載の構成要素と同一部分については同一符号を付し、その説明を省略する。 13, same symbols are components identical parts described in FIG. 12, description thereof is omitted.
この実施例と上記第6の実施例とは基本的構成は同一であり、以下の点において異なるものとなっている。 Basic structure as this embodiment and the sixth embodiment are the same, which is different from in the following points.
すなわち、本実施例における分岐鉗子栓80は、外付けチャンネル用管路83の他端に鉗子栓キャップ87を設けずに、内視鏡用管路84の他端にのみ鉗子栓キャップ87を取り付け、外付けチャンネル2を吸引機能に特化した構成とされたものである。 That is, the branch forceps plug 80 in this embodiment is attached without providing the forceps plug cap 87 at the other end of the external channel conduit 83, the forceps plug cap 87 only to the other end of the endoscope conduit 84 , it is one which is configured to specialized external channel 2 the suction function.
これにより、分岐鉗子栓80の構成を簡単にしつつも、上記第6の実施例と同様の効果を奏することができる。 Thus, even while simplifying the construction of the branch forceps plug 80, it is possible to achieve the same effect as the embodiment of the sixth.

なお、上記の実施例では、分岐部31を2方向に分岐させる構成としているが、これに限らず、3方向あるいはそれ以上の数に分岐するようにしてもよい。 In the above embodiment, although a configuration for branching a branch portion 31 in two directions, not limited thereto, and may be branched to the number of three directions or more.
また、管路保持部47を、水平管部40の外面のうち、垂直管部41よりも連通口40a側に設けたが、これに限らず、接続口40b側に設けてもよい。 Further, a conduit retaining portion 47, of the outer surface of the horizontal pipe section 40, is provided in the communication port 40a side from the vertical pipe section 41, not limited thereto, may be provided to the connection port 40b side.
また、固定具37をオレドメ部7の下側に固定しているが、これに限らず、オレドメ部7の上側に取り付けてもよい。 Moreover, the fixture 37 has been secured to the underside of the Oredome portion 7 is not limited thereto, it may be attached to the upper side of the Oredome portion 7.
さらに、固定具37をオレドメ部7に固定するとしたが、これに代えて、把持部6または操作部8に取り付けてもよい。 Moreover, the fixture 37 has been to fix the Oredome section 7, may alternatively be attached to the grip portion 6 or the operation unit 8.
また、固定具37と管路保持部47とが一体的に形成されるとしたが、これに限らず、複数部材により構成してもよい。 Although the fixture 37 and conduit retaining portion 47 is to be formed integrally, not limited thereto, and may be composed of a plurality of members.
なお、本発明の技術範囲は上記の実施例に限定されるものではなく、本発明の趣旨を逸脱しない範囲において、種々の変更を加えることが可能である。 The technical scope of the present invention is not limited to the above embodiments without departing from the scope and spirit of the present invention, it is possible to add various changes.

(付記項1) (Note 1)
前記請求項1に記載された外付けチャンネルにおいて、前記内視鏡の挿入部に前記チャンネル部を固定する固定部材の外周部を弾性体で構成したことを特徴とする外付けチャンネル。 In external channel as claimed in claim 1, external channel, characterized in that the outer peripheral portion of the fixing member for fixing the channel portion in the insertion portion of the endoscope and an elastic body.
(付記項2) (Note 2)
前記付記項1に記載された外付けチャンネルにおいて、前記固定部材の外周部を弾性体で構成するとともに、その材質が吸収体であることを特徴とする外付けチャンネル。 In external channel which has been described in Additional Item 1, as well as an elastic body outer peripheral portion of the fixing member, external channel, characterized in that the material is an absorbent material.
(付記項3) (Note 3)
前記請求項1に記載された外付けチャンネルにおいて、前記挿入部の外周に固定されたチャンネル部の操作部手元側端部を、前記内視鏡の操作部に設けられた鉗子口に固定したことを特徴とする外付けチャンネル。 In external channel as claimed in claim 1, to an operating unit proximal end of the channel portion fixed to the outer periphery of the insertion portion, and fixed to a forceps opening provided in the operation portion of the endoscope external channel characterized by.
(付記項4) (Note 4)
請求項1に記載の外付けチャンネルにおいて、前記分岐部を前記内視鏡に固定する固定具を備えていることを特徴とする外付けチャンネル。 In external channel according to claim 1, external channel, characterized in that it comprises a fixture for fixing the branch section to the endoscope.
(付記項5) (Note 5)
付記項4に記載の外付けチャンネルにおいて、 In external channel according to Additional Item 4,
前記分岐部は、前記固定具によって、前記第1または第二の内部通路の軸の方向に摺動可能または前記軸を中心として回動可能に取り付けられていることを特徴とする外付けチャンネル。 The bifurcation external channel, characterized in that said by fasteners, is attached rotatably around slidably or the shaft in the direction of the axis of the first or second interior passageway.

(付記項6) (Note 6)
請求項1に記載の外付けチャンネルにおいて、 In external channel according to claim 1,
前記第一の内部通路と前記第二の内部通路とが、互いに垂直に設けられていることを特徴とする外付けチャンネル。 The external channel first and the said internal passageway second interior passageway, characterized in that provided perpendicular to each other.
(付記項7) (Note 7)
請求項1に記載の外付けチャンネルにおいて、 In external channel according to claim 1,
前記第1または第二の内部通路の端部の方向を自在に可変できる方向可変部を備えていることを特徴とする外付けチャンネル。 External channel, characterized in that it comprises a steerable section capable of varying freely the direction of the end portion of the first or second interior passageway.
(付記項8) (Note 8)
請求項1から請求項5のいずれか一つに記載の外付けチャンネルを備えていることを特徴とする内視鏡装置。 The endoscope apparatus characterized by comprising an external channel according to claims 1 to claim 5.

本発明に係る外付けチャンネルの第1の実施例を示す図であって、本外付けチャンネルを内視鏡に取り付けた様子を示す概略構成図である。 A diagram showing a first embodiment of the external channel according to the present invention, is a schematic diagram showing a state attached to the endoscope of this external channel. 同実施例における外付けチャンネルの保持部を示す斜視図である。 Is a perspective view showing a holding portion of the external channel in the same embodiment. 同実施例における外付けチャンネルの分岐部を示す斜視図である。 Is a perspective view showing a branching unit of the external channel in the same embodiment. 同実施例における外付けチャンネルの分岐部の断面の様子を示す断面図である。 It is a sectional view showing a state of a cross section of the branches of the external channel in the same embodiment. 本発明に係る外付けチャンネルの第3の実施例の要部を示す断面図である。 Is a sectional view showing an essential portion of a third embodiment of the external channel according to the present invention. 本発明に係る外付けチャンネルの第4の実施例の要部を示す断面図である。 Is a sectional view showing an essential portion of a fourth embodiment of the external channel according to the present invention. 本発明に係る外付けチャンネルの第5の実施例の要部を示す概略構成図である。 A main part of a fifth embodiment of the external channel according to the present invention is a schematic diagram showing. 同実施例における外付けチャンネルの要部の断面の様子を示す断面図である。 It is a sectional view showing a state of a cross section of a main portion of the external channel in the same embodiment. 本発明に係る外付けチャンネルの第5の実施例の要部の断面の様子を示す断面図である。 The state of the cross section of the essential portion of a fifth embodiment of the external channel according to the present invention is a cross-sectional view illustrating. 同実施例における外付けチャンネルの切替弁を示す図であって、仕切板が上方に位置した様子を示す説明図である。 A diagram showing a switching valve of the external channel in the same embodiment is an explanatory view showing a state in which the partition plate is positioned above. 同実施例における外付けチャンネルの切替弁を示す図であって、仕切板が下方に押された様子を示す説明図である。 A diagram showing a switching valve of the external channel in the same embodiment is an explanatory view showing a state in which the partition plate is pushed downward. 本発明に係る外付けチャンネルの第6の実施例の要部の断面の様子を示す断面図である。 The state of the cross section of the essential portion of a sixth embodiment of the external channel according to the present invention is a cross-sectional view illustrating. 本発明に係る外付けチャンネルの第7の実施例の要部の断面の様子を示す断面図である。 It is a sectional view showing a state of a cross section of a main portion of a seventh embodiment of the external channel according to the present invention.

符号の説明 DESCRIPTION OF SYMBOLS

2 外付けチャンネル3 内視鏡5 内視鏡挿入部(挿入部) 2 external channel 3 endoscope 5 endoscope insertion portion (insertion portion)
31 分岐部35 可撓性チューブ(チャンネル部) 31 bifurcation 35 flexible tube (channel portion)
35a 内部通路35b 基端部40c 水平内部通路(第一の内部通路) 35a inner passage 35b proximal end 40c horizontal interior passageway (first internal passage)
41b 垂直内部通路(第二の内部通路) 41b vertical internal passage (second internal passage)

Claims (3)

  1. 内視鏡の挿入部に沿って配されるチャンネル部と、 A channel portion which is disposed along the insertion portion of the endoscope,
    このチャンネル部の基端部に設けられ、当該チャンネル部に形成された内部通路に連通する第一の内部通路及び第二の内部通路が形成してある分岐部とを具備することを特徴とする外付けチャンネル。 Disposed at the proximal end of the channel portion, characterized by comprising a first internal passageway and a second branch portion internal passage is formed which communicates with the inner passage formed in the channel section external channel.
  2. 前記第二の内部通路が、前記第一の内部通路から分岐するものである請求項1に記載の外付けチャンネル。 Said second inner passage, an external channel according to claim 1 in which branches from the first interior passageway.
  3. 内視鏡の挿入部に沿って配される外付けチャンネルの基端部に取り付けられるものであって、 It is one that is attached to the proximal end of the external channels arranged along the insertion portion of the endoscope,
    一端側及び他端側にて開口する、第一の内部通路と第二の内部通路とが形成してあることを特徴とする外付けチャンネル用分岐部材。 Opens at one end and the other end, the first internal passage and the second external channel branch member, characterized in that the internal passage is formed.


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