JP3185202B2 - Endoscope treatment instrument insertion channel structure - Google Patents
Endoscope treatment instrument insertion channel structureInfo
- Publication number
- JP3185202B2 JP3185202B2 JP04743095A JP4743095A JP3185202B2 JP 3185202 B2 JP3185202 B2 JP 3185202B2 JP 04743095 A JP04743095 A JP 04743095A JP 4743095 A JP4743095 A JP 4743095A JP 3185202 B2 JP3185202 B2 JP 3185202B2
- Authority
- JP
- Japan
- Prior art keywords
- tool
- treatment
- forceps
- plumbing
- 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
Description
【０００１】[0001]
【産業上の利用分野】本発明は内視鏡用処置具挿通チャ
ンネル構造に係り、特に手元操作部に２つの鉗子口を備
えた内視鏡用処置具挿通チャンネル構造に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a treatment instrument insertion channel structure for an endoscope, and more particularly to a treatment instrument insertion channel structure for an endoscope having two forceps ports in a hand operation section.
【０００２】[0002]
【従来の技術】内視鏡の手元操作部に形成された２つの
鉗子口（処置具挿入口）は口径が異なり、処置具のサイ
ズに応じて使い分けられるようになっている。前記２つ
の鉗子口は、内視鏡の挿入部内に配設された２本の鉗子
チャンネル（処置具挿通チャンネル）に２本の配管具を
介して各々接続され、２本の鉗子チャンネルの口径は、
その配管具に接続された鉗子口の口径と略等しい口径と
なっている。また、２本の配管具は、鉗子口から挿入さ
れた処置具を鉗子チャンネルに案内するために管路がく
の字状に湾曲形成され、処置具はその管路に沿って方向
転換されて鉗子チャンネルに案内される。2. Description of the Related Art Two forceps ports (treatment instrument insertion ports) formed in a hand operation section of an endoscope have different diameters, and can be selectively used according to the size of a treatment instrument. The two forceps ports are respectively connected to two forceps channels (treatment instrument insertion channels) disposed in the insertion portion of the endoscope via two pipes, and the diameters of the two forceps channels are ,
The diameter is substantially equal to the diameter of the forceps port connected to the plumbing tool. Further, the two plumbing tools are formed in a curved U-shape in order to guide the treatment tool inserted from the forceps port to the forceps channel, and the treatment tool is turned along the pipeline to form a forceps. Guided to the channel.
【０００３】[0003]
【発明が解決しようとする課題】ところで、２本の配管
具は、処置具を鉗子チャンネルに円滑に案内させるた
め、管路の曲率半径が大きめに設定され、処置具の先端
部が折り曲げ部で詰まるのを防止している。The two pipe fittings have a large radius of curvature of the conduit in order to smoothly guide the treatment tool to the forceps channel, and the distal end of the treatment tool is bent at the bent portion. Prevents clogging.
【０００４】しかしながら、配管具の管路の曲率半径を
大きくすると、手元操作部内において湾曲操作用ワイ
ヤ、ライトガイド、イメージガイド、送気送水チューブ
等の内容物の配設スペースが小さくなり、内容物が配管
具と干渉してしまうという欠点がある。[0004] However, when the radius of curvature of the pipe of the plumbing tool is increased, the space for disposing the contents such as the wire for bending operation, the light guide, the image guide, and the air / water supply tube in the hand operation unit is reduced, and the contents are reduced. Has the disadvantage that it interferes with the plumbing fixture.
【０００５】従って、従来の内視鏡では、処置具の挿通
性と内容物の配設スペースとを確保するために手元操作
部を大型にしなければならないという欠点がある。[0005] Therefore, the conventional endoscope has a drawback in that the size of the operation unit at hand must be large in order to secure the insertion property of the treatment tool and the space for disposing the contents.
【０００６】本発明はこのような事情に鑑みてなされた
もので、手元操作部を小型にしても処置具の挿通性と内
容物の配設スペースとを確保できる内視鏡用処置具挿通
チャンネル構造を提供することを目的とする。The present invention has been made in view of such circumstances, and has a treatment instrument insertion channel for an endoscope which can secure the insertion property of a treatment instrument and a space for arranging contents even when the operation portion is small. The purpose is to provide a structure.
【０００７】[0007]
【課題を解決するための手段】本発明は、前記目的を達
成するために、先端側から順に、先端部、挿入部及び手
元操作部を備え、先端部に設けられた２つの開口と、手
元操作部に設けられた２つの処置具挿入口とを挿入部内
を通して各々連通させる異なる口径の処置具挿通チャン
ネルと、手元操作部もしくはその近傍において、一方の
処置具挿入口と大口径側処置具挿通チャンネルと接続す
るための湾曲形成された第１配管具と、他方の処置具挿
入口と小口径側処置具挿通チャンネルと接続するために
略同一形状に湾曲形成された第２配管具とを有する内視
鏡用処置具挿通チャンネル構造に於いて、前記第１配管
具及び前記第２配管具とそれらの処置具挿入口の間に形
成された処置具挿入路の中心軸が、前記手元操作部の前
記各々の処置具挿入口側における外周部と交差する位置
に関して、前記第１配管具の軸心が前記第２配管具の軸
心よりも、前記位置に対して近い位置になるように配設
したことを特徴としている。In order to achieve the above object, the present invention comprises, in order from the distal end side, a distal end portion, an insertion portion and a hand operating portion, two openings provided at the distal end portion, A treatment instrument insertion channel having a different diameter for communicating two treatment instrument insertion ports provided in the operation section through the inside of the insertion section, and one treatment instrument insertion port and a large diameter side treatment instrument insertion at or near the hand operation section. It has a first plumbing tool that is curved to connect to the channel, and a second plumbing tool that is curved to have substantially the same shape to connect to the other treatment tool insertion port and the small diameter treatment tool insertion channel. In the treatment tool insertion channel structure for an endoscope, a central axis of a treatment tool insertion path formed between the first and second pipe tools and the treatment tool insertion port is positioned at the hand operation unit. Before
With respect to the position that intersects the outer peripheral portion in the treatment instrument insertion port side of the serial each than said axis of the axis of the first pipe member said second pipe member, arranged so as to be positioned closer to the position It is characterized by doing.
【０００８】[0008]
【作用】本発明によれば、第１配管具及び第２配管具と
それらの処置具挿入口の間に形成された処置具挿入路の
中心軸が手元操作部の外周部と交差する位置に関して、
前記第１配管具の軸心が前記第２配管具の軸心よりも前
記手元操作部の外周側に近い位置になるように配設され
ている。このため、本発明では、手元操作部を小型にし
ても内容物の配設スペースを確保することができ、ま
た、処置具は各々の配管具に詰まることなく処置具挿通
チャンネルに円滑に案内される。According to the present invention, the first plumbing tool and the second plumbing tool are
Of the treatment tool insertion path formed between those
Regarding the position where the center axis intersects the outer periphery of the hand operation unit,
The axis of the first plumbing tool is located before the axis of the second plumbing tool.
It is arranged so that it is located near the outer periphery of the
ing. For this reason, according to the present invention, even if the hand operation unit is small, a space for disposing the contents can be secured, and the treatment tool is smoothly guided to the treatment tool insertion channel without clogging each piping tool. You.
【０００９】[0009]
【実施例】以下添付図面に従って本発明に係る内視鏡用
処置具挿通チャンネル構造の好ましい実施例を詳述す
る。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a treatment instrument insertion channel structure for an endoscope according to the present invention.
【００１０】図１は、本発明の内視鏡用処置具挿通チャ
ンネル構造が適用された内視鏡の手元操作部を示す外観
図である。同図に示すように手元操作部１０の下端部に
は挿入部１２が接続され、この挿入部１２の先端には図
示しない湾曲部及び先端構成部が接続される。手元操作
部１０の上端部には接眼部１６が形成され、接眼部１６
の近傍には前記湾曲部を湾曲操作するレバー１８、吸引
操作ボタン２０、及び送気送水操作ボタン２２が並設さ
れている。また、手元操作部１０の側部には連結用チュ
ーブ２４の一端が接続され、このチューブ２４内には図
示しない吸引用チューブ、ライトガイドケーブル等が配
設されている。前記吸引用チューブは一端が前記吸引操
作ボタン２０のバルブに接続され、他端が図示しない吸
引装置に接続されている。FIG. 1 is an external view showing a hand operation unit of an endoscope to which a treatment tool insertion channel structure for an endoscope according to the present invention is applied. As shown in the drawing, an insertion portion 12 is connected to a lower end portion of the hand operation portion 10, and a bending portion and a tip configuration portion (not shown) are connected to a tip end of the insertion portion 12. An eyepiece 16 is formed at the upper end of the hand operation unit 10.
A lever 18, a suction operation button 20, and an air / water supply operation button 22 for bending the bending portion are provided side by side. One end of a connection tube 24 is connected to a side portion of the hand operation unit 10, and a suction tube, a light guide cable, and the like (not shown) are arranged in the tube 24. One end of the suction tube is connected to a valve of the suction operation button 20, and the other end is connected to a suction device (not shown).
【００１１】一方、手元操作部１０の下部には前傾した
突出部２６が形成され、この突出部２６の上端部に２つ
の鉗子口２８、３０が並設されている。前記鉗子口２８
は、鉗子口３０よりも大きな口径に形成され、２つの鉗
子口２８、３０からサイズの異なる２種類の処置具を挿
入できるようになっている。また、前記突出部２６の側
部には切換バルブ３２が回動自在に取り付けられる。On the other hand, a projecting portion 26 inclined forward is formed at the lower portion of the hand operating portion 10, and two forceps ports 28 and 30 are juxtaposed at the upper end of the projecting portion 26. The forceps port 28
Is formed with a larger diameter than the forceps port 30 so that two types of treatment tools having different sizes can be inserted from the two forceps ports 28 and 30. A switching valve 32 is rotatably attached to the side of the protrusion 26.
【００１２】図２は前記鉗子口２８の軸芯に沿った手元
操作部１０の要部縦断面図であり、図３は前記鉗子口３
０の軸芯に沿った手元操作部１０の要部断面図である。FIG. 2 is a longitudinal sectional view of a main part of the hand operation unit 10 along the axis of the forceps port 28, and FIG.
FIG. 3 is a cross-sectional view of a main part of the hand operation unit 10 along an axis 0.
【００１３】図２に示すように鉗子口２８の下部には２
本の筒体３４、３６が連設され、この筒体３４、３６を
介して鉗子口２８が配管具３８に接続される。配管具３
８の管路３９の口径は、鉗子口２８の口径と略同一とな
っている。前記筒体３４、３６は、突出部２６内に鉗子
口２８と同軸上にねじ込み固定され、図示しないパッキ
ンによって気密性が保たれている。また、筒体３４の側
面には開口部３４Ａが形成され、この開口部３４Ａが前
記切換バルブ３２に連通されている。As shown in FIG. 2, the lower part of the forceps
The cylinders 34 and 36 are connected in series, and the forceps port 28 is connected to the piping 38 via the cylinders 34 and 36. Plumbing fixture 3
The diameter of the conduit 39 is substantially the same as the diameter of the forceps port 28. The cylinders 34 and 36 are screwed into the protruding portion 26 coaxially with the forceps port 28, and are kept airtight by packing (not shown). An opening 34 </ b> A is formed on a side surface of the cylindrical body 34, and the opening 34 </ b> A communicates with the switching valve 32.
【００１４】前記配管具３８は、鉗子口２８から挿入さ
れた処置具を挿入部方向に導くようにその管路３９がＲ
１の曲率半径（図４参照）でくの字状に曲げられいる。
また、配管具３８は、肉厚の厚い部分３８Ａが手元操作
部１０のフレーム４０にネジ４２によって固定されるこ
とにより、所定の位置に位置決めされている。更に、配
管具３８は、上部に連通口３８Ｂと下部に連通口３８Ｃ
とが形成され、前記連通口３８Ｂは筒体３６に連結治具
４４を介して接続され、前記連通口３８Ｃは大口径の鉗
子チャンネル４６の基端部４６Ａに連結治具４８を介し
て接続される。前記鉗子チャンネル４６の先端部は、挿
入部の先端構成部に形成した鉗子窓に接続されている。
これにより、配管具３８を介して挿入された処置具は、
鉗子チャンネル４６によって前記鉗子窓まで案内され
る。The pipe 39 has an R channel so that the treatment tool inserted from the forceps port 28 is guided toward the insertion portion.
It is bent in a V-shape with a radius of curvature of 1 (see FIG. 4).
Further, the piping tool 38 is positioned at a predetermined position by fixing a thick portion 38A to the frame 40 of the hand operation unit 10 with the screw 42. Further, the piping member 38 has a communication port 38B at the upper part and a communication port 38C at the lower part.
The communication port 38B is connected to the cylinder 36 via a connection jig 44, and the communication port 38C is connected to a base end 46A of a large-diameter forceps channel 46 via a connection jig 48. You. The distal end of the forceps channel 46 is connected to a forceps window formed in the distal end component of the insertion section.
Thereby, the treatment tool inserted via the plumbing tool 38 is
It is guided by the forceps channel 46 to the forceps window.
【００１５】図３に示す鉗子口３０も鉗子口２８と同様
に、下部に２本の筒体４８、５０が連設され、この筒体
４８、５０を介して配管具５２に接続される。配管具５
２の管路５３の口径は、鉗子口３０の口径と略同一とな
っており、即ち、この配管具５２の口径は、鉗子口２８
側の配管具３８の口径よりも小さめに形成されている。
前記筒体４８、５０は、突出部２６内に鉗子口３０と同
軸上にねじ込み固定され、図示しないパッキンによって
気密性が保たれている。また、筒体４８の側面には開口
部４８Ａが形成され、この開口部４８Ａが前記切換バル
ブ３２に連通されている。従って、切換バルブ３２を開
放すれば、筒体４８と図２に示した鉗子口２８側の筒体
３４とが連通する。As in the case of the forceps port 28, the forceps port 30 shown in FIG. 3 is provided with two cylinders 48 and 50 connected to the lower portion thereof, and is connected to the pipe fitting 52 via the cylinders 48 and 50. Plumbing tool 5
The diameter of the second conduit 53 is substantially the same as the diameter of the forceps port 30, that is, the diameter of the piping device 52 is the forceps port 28.
It is formed smaller than the diameter of the plumbing tool 38 on the side.
The cylindrical bodies 48 and 50 are screwed and fixed coaxially with the forceps port 30 in the protruding portion 26, and airtightness is maintained by packing (not shown). An opening 48A is formed in the side surface of the cylindrical body 48, and the opening 48A communicates with the switching valve 32. Therefore, when the switching valve 32 is opened, the cylinder 48 communicates with the cylinder 34 on the side of the forceps port 28 shown in FIG.
【００１６】前記配管具５２は、鉗子口３０から挿入さ
れた処置具を挿入部方向に導くようにその管路５３がＲ
２の曲率半径（図５参照）でくの字状に曲げられてい
る。また、配管具５２は、上部に連通口５２Ａが形成さ
れ、下部は二股に分岐して連通口５２Ｂ、５２Ｃが前後
に形成される。前記連通口５２Ａは、鉗子口３０側の筒
体４８に連結治具５７を介して接続され、前記連通口５
２Ｂは吸引チューブ５４の先端部５４Ａに接続され、前
記連通口５２Ｃは小口径の鉗子チャンネル５６の基端部
５６Ａに連結治具５８を介して接続される。前記鉗子チ
ャンネル５６の先端部は、挿入部の先端構成部に形成し
た鉗子窓に接続されている。これにより、配管具５２を
介して挿入された処置具は、鉗子チャンネル５６によっ
て前記鉗子窓まで案内される。The pipe 53 has an R channel so that the treatment tool inserted from the forceps port 30 is guided toward the insertion portion.
It is bent in a V-shape with a radius of curvature of 2 (see FIG. 5). In addition, the piping tool 52 has a communication port 52A formed at an upper portion, and a lower portion branched into two portions, and communication ports 52B and 52C are formed at the front and rear. The communication port 52A is connected to the cylinder 48 on the forceps port 30 side via a connecting jig 57, and the communication port 5
2B is connected to the distal end portion 54A of the suction tube 54, and the communication port 52C is connected to the proximal end portion 56A of the small-diameter forceps channel 56 via a connecting jig 58. The distal end of the forceps channel 56 is connected to a forceps window formed in the distal end component of the insertion section. Thus, the treatment tool inserted through the piping tool 52 is guided by the forceps channel 56 to the forceps window.
【００１７】前記吸引チューブ５４は、基端部が図１に
示した吸引操作ボタン２０のバルブに接続され、このバ
ルブを開放操作することにより、前述した吸引用チュー
ブを介して吸引装置に連通される。従って、前記バルブ
を操作し吸引装置を駆動すれば、患部等に溜まった液体
を鉗子窓から鉗子チャンネル５６、配管具５２、及び吸
引チューブ５４を介して吸引することができる。また、
切換バルブ３２を開放して鉗子口２８側の筒体３４と鉗
子口３０側の筒体４８とを連通させることにより、２本
の鉗子チャンネル４６、５６で吸引を行うことができ
る。The suction tube 54 has a base end connected to the valve of the suction operation button 20 shown in FIG. 1, and is opened to communicate with the suction device via the suction tube described above. You. Therefore, if the suction device is operated by operating the valve, the liquid accumulated in the affected part or the like can be sucked from the forceps window via the forceps channel 56, the pipe fitting 52, and the suction tube 54. Also,
By opening the switching valve 32 to communicate the cylinder 34 on the forceps port 28 side with the cylinder 48 on the forceps port 30 side, suction can be performed by the two forceps channels 46 and 56.
【００１８】ところで、前記配管具５２は図６に示すよ
うに、両側面に取付片５８、６０が突出形成されてい
る。また、前記配管具３８の配管具５２と対向する側面
には、略Ｖ字状の凹部６２が形成される。配管具５２
は、一方側の取付片５８を配管具３８の前記凹部６２の
底部６２Ａに載置（図７参照）すると共に、取付片５８
の前端面５８Ａを前記凹部６２の壁面６２Ｂに当接支持
することにより配管具３８に保持される。また、配管具
５２は図７に示すように、他方側の取付片６０がフレー
ム４０に形成された孔部４０Ａに挿入されることにより
手元操作部１０内の所定の位置に位置決めされる。By the way, as shown in FIG. 6, the plunger 52 has mounting pieces 58 and 60 projecting from both sides. A substantially V-shaped concave portion 62 is formed on a side surface of the piping device 38 facing the piping device 52. Plumbing tool 52
Puts the mounting piece 58 on one side on the bottom 62A of the concave portion 62 of the plumbing tool 38 (see FIG. 7), and
The front end surface 58A is held in contact with the wall surface 62B of the concave portion 62 to be held by the pipe fitting 38. As shown in FIG. 7, the plunger 52 is positioned at a predetermined position in the hand operation unit 10 by inserting the mounting piece 60 on the other side into the hole 40 </ b> A formed in the frame 40.
【００１９】また、配管具３８の管路３９と配管具５２
の管路５３とは、配管具３８の管路３９の曲率半径Ｒ１
（図４参照）が配管具５２の管路５３の曲率半径Ｒ２
（図５参照）よりも小さく設定され、配管具３８の管路
３９の軸芯Ｏ1 が図８に示すように、配管具５２の管路
５３の軸芯Ｏ2 よりも上方位置に、即ち、鉗子口側（処
置具挿入口側）の位置になるように配設されている。更
に、各々の曲率半径Ｒ１、Ｒ２は、図７、８に示すよう
に配管具３８、５２の下方に配設されるイメージガイド
６４、ライトガイドケーブル６６、起立ワイヤ６８、及
び送気送水チューブ７０等の多数の内容物に配管具３
８、５２が干渉しない角度にそれぞれ設定されている。 The pipe 39 of the pipe 38 and the pipe 52
A conduit 53, the radius of curvature R1 of the duct 39 of the pipe member 38
(See FIG. 4) is the radius of curvature R2 of the conduit 53 of the plumbing tool 52.
As shown in FIG. 8, the axis O 1 of the pipe 39 of the plumbing tool 38 is set higher than the axis O 2 of the pipe 53 of the plumbing tool 52, that is, as shown in FIG. It is disposed so as to be located at the position of the forceps port side (treatment instrument insertion port side). Further, each of the radii of curvature R1, R2 is determined by the image guide 64, the light guide cable 66, the upright wire 68, and the air / water supply tube 70, which are disposed below the pipes 38, 52 as shown in FIGS. Plumbing fittings 3
8, 52 are set at angles that do not interfere with each other.
【００２０】図８は、図１中８−８線上に沿う内視鏡の
手元操作部の断面図である。図８上で符号Ｐ1 、Ｐ2 は
処置具挿入路の中心軸Ｐ1 、Ｐ2 である。また、符号Ｏ
1 は配管具３８の軸芯Ｏ1 であり、符号Ｏ2 は配管具５
２の軸芯Ｏ2 である。同図に示すように、配管具３８の
軸芯Ｏ1 は、配管具５２の軸芯Ｏ2 よりも上方位置に設
定されている。即ち、第１配管具３８及び第２配管具５
２とそれらの処置具挿入口の間に形成された処置具挿入
路の中心軸Ｐ1 、Ｐ2 が、手元操作部の前記各々の処置
具挿入口側における外周部と交差する位置に関して、第
１配管具３８の軸心Ｏ1 が第２配管具５２の軸心Ｏ2 よ
りも、前記位置に対して近い位置になるように配設され
ている。FIG. 8 is a cross-sectional view of the hand operation unit of the endoscope along the line 8-8 in FIG. In FIG. 8, symbols P 1 and P 2 are central axes P 1 and P 2 of the treatment instrument insertion path. Also, the code O
1 is the axis O 1 of the pipe member 38, reference numeral O 2 piping tool 5
2 is the axis O 2 . As shown in the figure, the axis O 1 of the plumbing tool 38 is set at a position higher than the axis O 2 of the plumbing tool 52. That is, the first piping tool 38 and the second piping tool 5
2 and the central axes P 1 and P 2 of the treatment tool insertion path formed between the treatment tool insertion ports are the respective treatments of the hand operation unit.
With respect to the position that intersects the outer peripheral portion of the jig insertion opening side, the axis O 1 of the first pipe member 38 than the axis O 2 of the second pipe member 52, disposed so as to be positioned closer to the position Have been.
【００２１】このように構成された内視鏡用処置具挿通
チャンネル構造によれば、大口径側の配管具３８の管路
３９の曲率半径Ｒ１が小さくても該配管具３８の管路３
９が、配管具５２の管路５３よりも大口径であるので、
処置具は配管具３８の折り曲げ部に詰まることなく鉗子
チャンネル４６に円滑に案内される。According to the treatment instrument insertion channel structure for an endoscope configured as described above, the conduit of the plunger 38 on the large diameter side
Even if the radius of curvature R1 of the pipe 39 is small, the pipe 3
9 has a larger diameter than the pipe 53 of the plumbing tool 52,
The treatment tool is smoothly guided to the forceps channel 46 without clogging the bent portion of the plumbing tool 38.
【００２２】また、配管具５２の管路５３は口径が小さ
いが曲率半径Ｒ２が大口径側の配管具３８の管路３９の
曲率半径Ｒ１よりも大きいので、処置具は配管具５２の
折り曲げ部に詰まることなく鉗子チャンネルに円滑に案
内される。The conduit 53 of the plumbing tool 52 has a small diameter but the radius of curvature R2 is larger than the radius of curvature R1 of the conduit 39 of the plumbing tool 38 on the large diameter side. Guide smoothly into the forceps channel without clogging.
【００２３】従って、本実施例の如く口径の異なる２つ
の配管具３８、５２の相対的な位置を設定すると、手元
操作部１０を小型にしても、処置具の挿通性と内容物の
配設スペースとを確保することができる。Therefore, when the relative positions of the two pipes 38, 52 having different diameters are set as in the present embodiment, even if the hand operation unit 10 is small, the insertion of the treatment tool and the disposition of the contents are possible. Space can be secured.
【００２４】[0024]
【発明の効果】以上説明したように本発明に係る内視鏡
用処置具挿通チャンネル構造によれば、第１配管具及び
第２配管具とそれらの処置具挿入口の間に形成された処
置具挿入路の中心軸が、手元操作部の前記各々の処置具
挿入口側における外周部と交差する位置に関して、前記
第１配管具の軸心が前記第２配管具の軸心よりも、前記
位置に対して近い位置になるように配設したので、手元
操作部を小型にしても処置具の挿通性と内容物の配設ス
ペースとを確保することができる。As described above, according to the treatment tool insertion channel structure for an endoscope according to the present invention, the treatment formed between the first and second piping tools and the insertion port for the treatment tools. The central axis of the tool insertion path is the respective treatment tool of the hand operation unit.
With respect to the position that intersects the outer peripheral portion of the insertion port side, the axial center of the shaft center and the second pipe member of the first pipe member, wherein
Since it is disposed so as to be close to the position, even if the hand operation unit is small, it is possible to secure the insertion property of the treatment tool and the space for disposing the contents.
【図１】本発明に係る内視鏡用処置具挿通チャンネル構
造が適用された手元操作部の外観図FIG. 1 is an external view of a hand operation unit to which a treatment tool insertion channel structure for an endoscope according to the present invention is applied.
【図２】手元操作部を含む第１の鉗子口の縦断面図FIG. 2 is a longitudinal sectional view of a first forceps port including a hand operation unit.
【図３】手元操作部を含む第２の鉗子口の縦断面図FIG. 3 is a longitudinal sectional view of a second forceps port including a hand operation unit.
【図４】第１配管具の側面図FIG. 4 is a side view of the first plumbing tool.
【図５】第２配管具の側面図FIG. 5 is a side view of a second plumbing tool.
【図６】第１配管具に対する第２配管具の保持状態を示
す斜視図FIG. 6 is a perspective view showing a holding state of a second piping device with respect to the first piping device.
【図７】図１中７−７線上に沿う内視鏡の手元操作部の
断面図FIG. 7 is a cross-sectional view of the hand operation unit of the endoscope along the line 7-7 in FIG. 1;
【図８】図１中８−８線上に沿う内視鏡の手元操作部の
断面図FIG. 8 is a cross-sectional view of the hand operation unit of the endoscope along the line 8-8 in FIG. 1;
１０…手元操作部 ２８、３０…鉗子口 ３２…切換バルブ ３８、５２…配管具 ４６、５６…鉗子チャンネル DESCRIPTION OF SYMBOLS 10 ... Hand operation part 28, 30 ... Forceps port 32 ... Switching valve 38, 52 ... Piping tool 46, 56 ... Forceps channel
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) A61B 1/00 - 1/32 ──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. 7 , DB name) A61B 1/00-1/32
Claims (1)
操作部を備え、先端部に設けられた２つの開口と、手元
操作部に設けられた２つの処置具挿入口とを挿入部内を
通して各々連通させる異なる口径の処置具挿通チャンネ
ルと、手元操作部もしくはその近傍において、一方の処
置具挿入口と大口径側処置具挿通チャンネルと接続する
ための湾曲形成された第１配管具と、他方の処置具挿入
口と小口径側処置具挿通チャンネルと接続するために略
同一形状に湾曲形成された第２配管具とを有する内視鏡
用処置具挿通チャンネル構造に於いて、 前記第１配管具及び前記第２配管具とそれらの処置具挿
入口の間に形成された処置具挿入路の中心軸が、前記手
元操作部の前記各々の処置具挿入口側における外周部と
交差する位置に関して、 前記第１配管具の軸心が前記第２配管具の軸心よりも、
前記位置に対して近い位置になるように配設したことを
特徴とする内視鏡用処置具挿通チャンネル構造。1. An end portion, an insertion portion, and a hand operation portion are provided in order from a front end side. Two openings provided at the front end portion and two treatment instrument insertion ports provided at the hand operation portion are inserted into the insertion portion. Through a treatment instrument insertion channel of a different diameter to be communicated with each other, and at or near the hand operation unit, a first plumbing tool formed to be connected to one of the treatment instrument insertion ports and the large diameter side treatment instrument insertion channel, In the treatment tool insertion channel structure for an endoscope, the treatment tool insertion channel having the other treatment tool insertion port and a second plumbing tool curved to have substantially the same shape for connection with the small diameter side treatment tool insertion channel, The center axis of the treatment tool insertion path formed between the plumbing tool, the second plumbing tool, and the treatment tool insertion port is the hand.
Regarding the position intersecting the outer peripheral portion on the respective treatment tool insertion port side of the original operation unit, the axis of the first plumbing tool is greater than the axis of the second plumbing tool ,
A treatment tool insertion channel structure for an endoscope, wherein the treatment instrument insertion channel structure is disposed so as to be close to the position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04743095A JP3185202B2 (en) | 1995-03-07 | 1995-03-07 | Endoscope treatment instrument insertion channel structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04743095A JP3185202B2 (en) | 1995-03-07 | 1995-03-07 | Endoscope treatment instrument insertion channel structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08238215A JPH08238215A (en) | 1996-09-17 |
| JP3185202B2 true JP3185202B2 (en) | 2001-07-09 |
Family
ID=12774942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP04743095A Expired - Lifetime JP3185202B2 (en) | 1995-03-07 | 1995-03-07 | Endoscope treatment instrument insertion channel structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3185202B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020148830A1 (en) * | 2019-01-16 | 2020-07-23 | オリンパス株式会社 | Insertion device |
-
1995
- 1995-03-07 JP JP04743095A patent/JP3185202B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH08238215A (en) | 1996-09-17 |
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