JP2006239184A - Distal end of side-viewing type endoscope - Google Patents

Distal end of side-viewing type endoscope Download PDF

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JP2006239184A
JP2006239184A JP2005059875A JP2005059875A JP2006239184A JP 2006239184 A JP2006239184 A JP 2006239184A JP 2005059875 A JP2005059875 A JP 2005059875A JP 2005059875 A JP2005059875 A JP 2005059875A JP 2006239184 A JP2006239184 A JP 2006239184A
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treatment instrument
distal end
guide wire
catheter
endoscope
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Japanese (ja)
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Takashi Sawai
貴司 澤井
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Pentax Corp
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Pentax Corp
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/00064—Constructional details of the endoscope body
    • A61B1/00071—Insertion part of the endoscope body
    • A61B1/0008—Insertion part of the endoscope body characterised by distal tip features
    • A61B1/00098—Deflecting means for inserted tools

Abstract

<P>PROBLEM TO BE SOLVED: To provide a distal end part of a safe side-viewing type endoscope, capable of removing a catheter only from a treatment instrument insertion channel of the endoscope using the catheter with a general cross-section shape so that the distal end of a guide wire is not pulled out of the pancreatic/bile duct, etc., without a risk of injury or blockage of the pancreatic/bile duct, or a risk that the catheter can not be removed from the pancreatic/bile duct. <P>SOLUTION: The distal end part of the endoscope is structured so that the guide wire 30 can be pressed and fixed on a wall part of a treatment instrument projection hole 3b by a treatment instrument raising piece 4 by drawing an operation wire 5 from the proximal end side 10 of an insertion part 1 with only the guide wire 30 projecting outward from the treatment instrument projection hole 3b. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

この発明は側方視型内視鏡の先端部に関する。   The present invention relates to a distal end portion of a side-view type endoscope.

膵胆管等のような細い管腔内にカテーテルを挿入して、そのカテーテルをさらに別のカテーテルに交換するカテーテル交換術等を行う際には、先ずガイドワイヤが挿通配置されたカテーテルの先端を内視鏡の処置具挿通チャンネルを経由して膵胆管等に挿入し、次いでガイドワイヤの先端部分だけを膵胆管内に残してカテーテルを抜去し、そのガイドワイヤをガイドにして別のカテーテルを挿入する手技がとられる。   When a catheter is inserted into a thin lumen such as the pancreaticobiliary duct and the catheter is replaced with another catheter, the tip of the catheter through which the guide wire is inserted is first inserted. Insert into the pancreaticobiliary duct etc. via the treatment instrument insertion channel of the endoscope, then remove the catheter leaving only the distal end portion of the guidewire in the pancreaticobiliary duct, and insert another catheter using the guidewire as a guide The procedure is taken.

しかし、単純にガイドワイヤの先端を膵胆管内に残してカテーテルだけを抜去しようとすると、内視鏡に設けられている長い処置具挿通チャンネルからカテーテルを引き出す操作をしている際にガイドワイヤの先端部分が膵胆管から抜け出てしまい、全てを初めからやり直さなければならない場合が多々発生する。   However, if the tip of the guide wire is simply left in the pancreaticobiliary duct and only the catheter is to be removed, the guide wire will be removed when the catheter is pulled out from the long treatment instrument insertion channel provided in the endoscope. There are many cases in which the tip part comes out of the pancreaticobiliary duct and everything has to be redone from the beginning.

それを防止するために、ガイドワイヤの先端を膵胆管内で膨らませて抜け止め機能を得られるようにすることも考えられるが、膵胆管の損傷や閉塞をまねいたり、膨らんだまま元へ戻らなくなってガイドワイヤが抜去できなくなるリスクがある等の難点がある。   To prevent this, the tip of the guide wire may be inflated in the pancreaticobiliary duct to obtain a retaining function. As a result, there is a risk that the guide wire cannot be removed.

そこで従来は、ガイドワイヤの手元側を内視鏡の処置具挿通チャンネルの入口部分に選択的に固定することができるようにしていた（例えば、特許文献１）。
特表２００２−５１５３０５ Therefore, conventionally, the proximal side of the guide wire can be selectively fixed to the entrance portion of the treatment instrument insertion channel of the endoscope (for example, Patent Document 1).
Special table 2002-515305

しかし、特許文献１に記載されているようにガイドワイヤの手元側を内視鏡の処置具挿通チャンネルの入口部分に固定した状態でカテーテルだけを抜去できるようにするには、ガイドワイヤをカテーテルの外面に沿わせる必要があるので、Ｕ字溝が外面に全長にわたって形成されたカテーテル等のように特殊な断面形状のカテーテルを使用しなければならず一般的でない。   However, as described in Patent Document 1, in order to be able to remove only the catheter while the proximal side of the guide wire is fixed to the entrance portion of the treatment instrument insertion channel of the endoscope, the guide wire is attached to the catheter. Since it is necessary to extend along the outer surface, a catheter having a special cross-sectional shape such as a catheter in which a U-shaped groove is formed on the outer surface over the entire length must be used.

そこで本発明は、一般的な断面形状のカテーテルを用いて、ガイドワイヤの先端部分が膵胆管内等から抜け出さないようにカテーテルだけを内視鏡の処置具挿通チャンネルから抜去することができ、しかも膵胆管の損傷、閉塞或いは膵胆管からの抜去不能のリスク等のない安全な側方視型内視鏡の先端部を提供することを目的とする。   Therefore, the present invention can remove only the catheter from the treatment instrument insertion channel of the endoscope using a catheter having a general cross-sectional shape so that the distal end portion of the guide wire does not come out of the pancreaticobiliary duct or the like. An object of the present invention is to provide a safe distal end portion of a side-view endoscope that is free from the risk of damage, obstruction or inability to be removed from the pancreaticobiliary duct.

上記の目的を達成するため、本発明の側方視型内視鏡の先端部は、ガイドワイヤを挿脱自在なカテーテルを通すことができる処置具挿通チャンネルが挿入部内に挿通配置されて、挿入部の基端側から操作ワイヤを進退操作することにより駆動される処置具起上片が、挿入部の先端に側方に向いて開口する処置具突出口内に配置され、処置具突出口から外方に突出するカテーテルの突出方向を処置具起上片で制御することができるように構成された側方視型内視鏡の先端部において、ガイドワイヤのみを処置具突出口から外方に突出させた状態のときに、操作ワイヤを挿入部の基端側から牽引することにより、処置具起上片でガイドワイヤを処置具突出口の壁部に押圧固定することができるように構成したものである。   In order to achieve the above object, the distal end portion of the side-view type endoscope of the present invention is inserted by inserting a treatment instrument insertion channel through which a guide wire can be inserted and removed through the insertion portion. A treatment instrument raising piece driven by advancing and retracting the operation wire from the proximal end side of the section is disposed in a treatment instrument projection opening that opens laterally at the distal end of the insertion section, and is disposed outside the treatment instrument projection opening. Only the guide wire protrudes outward from the treatment instrument protrusion at the distal end of the side-view type endoscope configured so that the protruding direction of the catheter protruding in the direction can be controlled by the treatment instrument raising piece. The guide wire is configured to be able to be pressed and fixed to the wall of the treatment instrument protruding port with the treatment instrument raising piece by pulling the operation wire from the proximal end side of the insertion section when the operation wire is pulled It is.

本発明によれば、ガイドワイヤを処置具起上片で処置具突出口の壁部に押圧固定することができるので、一般的な断面形状のカテーテルを用いて、ガイドワイヤの先端部分が膵胆管内等から抜け出さないようにカテーテルだけを内視鏡の処置具挿通チャンネルから抜去することができ、ガイドワイヤの先端部分を膵胆管内に保持するための阻止力が膵胆管には加わらないので、膵胆管の損傷、閉塞或いは膵胆管からガイドワイヤが抜去不能になる等のリスクがない。   According to the present invention, since the guide wire can be pressed and fixed to the wall portion of the treatment instrument protruding port by the treatment instrument raising piece, the distal end portion of the guide wire is pancreaticobiliary duct using a catheter having a general cross-sectional shape. Only the catheter can be removed from the treatment instrument insertion channel of the endoscope so that it does not come out from the inside, and the blocking force for holding the distal end portion of the guide wire in the pancreaticobiliary duct is not applied to the pancreaticobiliary duct, There is no risk of pancreaticobiliary damage, obstruction, or inability to remove the guidewire from the pancreaticobiliary duct.

ガイドワイヤを挿脱自在なカテーテルを通すことができる処置具挿通チャンネルが挿入部内に挿通配置されて、挿入部の基端側から操作ワイヤを進退操作することにより駆動される処置具起上片が、挿入部の先端に側方に向いて開口する処置具突出口内に配置され、処置具突出口から外方に突出するカテーテルの突出方向を処置具起上片で制御することができるように構成された側方視型内視鏡の先端部において、ガイドワイヤのみを処置具突出口から外方に突出させた状態のときに、操作ワイヤを挿入部の基端側から牽引することにより、処置具起上片でガイドワイヤを処置具突出口の壁部に押圧固定することができる。   A treatment instrument raising piece that is driven by advancing / retreating an operation wire from the proximal end side of the insertion section with a treatment instrument insertion channel through which a guide wire can be inserted and removed is inserted and arranged in the insertion section. The treatment tool is arranged in a treatment tool protruding opening that opens sideways at the distal end of the insertion portion, and the protruding direction of the catheter protruding outward from the treatment tool protruding opening can be controlled by the treatment tool raising piece. In a state where only the guide wire is protruded outward from the treatment instrument projection port at the distal end portion of the side-view type endoscope, the operation wire is pulled from the proximal end side of the insertion portion, thereby performing treatment. The guide wire can be pressed and fixed to the wall portion of the treatment instrument protruding port with the raising piece.

図面を参照して本発明の実施例を説明する。
図３は内視鏡の全体構成を示しており、この内視鏡は可撓性の挿入部１の先端に連結された先端部本体２の側方を観察領域とするいわゆる側方視型内視鏡であって、観察窓や照明窓等が先端部本体２の側面に配置され、挿入部１の基端に操作部１０が連結されている。 Embodiments of the present invention will be described with reference to the drawings.
FIG. 3 shows the overall configuration of the endoscope. This endoscope is a so-called side-viewing type endoscope in which the side of the distal end portion body 2 connected to the distal end of the flexible insertion portion 1 is an observation region. In this endoscope, an observation window, an illumination window, and the like are arranged on the side surface of the distal end main body 2, and an operation unit 10 is connected to the proximal end of the insertion unit 1.

挿入部１内には全長にわたって処置具挿通チャンネル３が挿通配置されていて、その入口開口３ａは挿入部１と操作部１０との連結部付近に斜め上方に向けて配置され、出口開口である処置具突出口３ｂは観察方向と向きを合わせて先端部本体２の側面に配置されている。   The treatment instrument insertion channel 3 is inserted and disposed over the entire length in the insertion portion 1, and the inlet opening 3 a is disposed obliquely upward near the connecting portion between the insertion portion 1 and the operation portion 10, and is an outlet opening. The treatment instrument protrusion 3b is arranged on the side surface of the distal end main body 2 in the same direction as the observation direction.

処置具突出口３ｂの内側には、処置具突出口３ｂから外方に突出する処置具等の突出方向を制御するための処置具起上片４が配置されていて、処置具起上片４を回動駆動するための操作ワイヤ５が、操作部１０に配置された操作レバー１１により進退操作される。   A treatment tool raising piece 4 for controlling the protruding direction of the treatment tool or the like protruding outward from the treatment tool protrusion 3b is disposed inside the treatment tool protrusion 3b. The operation wire 5 for rotationally driving is moved forward and backward by the operation lever 11 disposed in the operation unit 10.

図４は先端部本体２付近を拡大して示す側面断面図、図５は平面図であり、図５に示される６は観察窓、７は照明窓である。
処置具起上片４は、図４に示されるように支軸４ｘを中心に回動自在に先端部本体２に取り付けられていて、処置具挿通チャンネル３に挿通された処置具（ここではカテーテル２０）が処置具突出口３ｂから突没する際に処置具（２０）を案内するための処置具案内面４ａが処置具起上片４の表面に形成されている。 4 is an enlarged side cross-sectional view showing the vicinity of the tip body 2, FIG. 5 is a plan view, 6 is an observation window, and 7 is an illumination window shown in FIG. 5.
As shown in FIG. 4, the treatment instrument raising piece 4 is attached to the distal end body 2 so as to be rotatable about a support shaft 4 x and is inserted into the treatment instrument insertion channel 3 (here, a catheter). A treatment instrument guide surface 4a for guiding the treatment instrument (20) when 20) projects from the treatment instrument protrusion 3b is formed on the surface of the treatment instrument raising piece 4.

操作ワイヤ５の先端はそのような処置具起上片４の支軸４ｘから離れた位置に連結されており、操作ワイヤ５が軸線方向に進退操作されることにより、処置具起上片４が支軸４ｘを中心に回動して処置具突出口３ｂからの処置具（２０）の突出方向が変化する。なお、処置具起上片４に直結されたアーム等に操作ワイヤ５の先端を連結してもよく、その部分の機構は公知の各種機構を用いることができる。   The distal end of the operation wire 5 is connected to a position away from the support shaft 4x of the treatment instrument raising piece 4, and the treatment tool raising piece 4 is moved forward and backward in the axial direction. The projection direction of the treatment instrument (20) from the treatment instrument projection port 3b is changed by rotating around the support shaft 4x. The distal end of the operation wire 5 may be connected to an arm or the like directly connected to the treatment instrument raising piece 4, and various known mechanisms can be used as the mechanism of that portion.

そのような構成により、操作ワイヤ５が操作部１０側から牽引操作されていない時は、図４に二点鎖線で示されるように、処置具突出口３ｂが広く開放された状態になっており、矢印Ａで示されるように操作ワイヤ５が操作部１０側から牽引操作されると、処置具起上片４が支軸４ｘを中心に回動して、処置具突出口３ｂから外方に突出する処置具（２０）が図４に実線で示されるように起上する。   With such a configuration, when the operation wire 5 is not pulled from the operation unit 10 side, the treatment instrument protrusion 3b is widely opened as shown by a two-dot chain line in FIG. When the operation wire 5 is pulled from the operation unit 10 side as indicated by the arrow A, the treatment instrument raising piece 4 rotates around the support shaft 4x and outwards from the treatment instrument protrusion 3b. The protruding treatment tool (20) rises as shown by the solid line in FIG.

図４と図５には、全長にわたってガイドワイヤ３０が挿通されたカテーテル２０が処置具挿通チャンネル３に通されて、そのカテーテル２０の先端部分が処置具突出口３ｂから外方に突出した状態が図示されており、起上した状態のカテーテル２０の先端部分を進退させる際には、処置具起上片４がカテーテル２０を処置具突出口３ｂの壁部に押圧しない状態で処置具起上片４を静止させておくことができる。なお、カテーテル２０の直径は１．７ｍｍ±０．２ｍｍ程度、ガイドワイヤ３０の直径は０．８ｍｍ±０．１ｍｍ程度である。   4 and 5, the catheter 20 through which the guide wire 30 is inserted through the entire length is passed through the treatment instrument insertion channel 3, and the distal end portion of the catheter 20 protrudes outward from the treatment instrument projection port 3b. As shown in the figure, when the distal end portion of the raised catheter 20 is advanced or retracted, the treatment instrument raising piece 4 does not press the catheter 20 against the wall of the treatment instrument projection port 3b. 4 can be kept stationary. The diameter of the catheter 20 is about 1.7 mm ± 0.2 mm, and the diameter of the guide wire 30 is about 0.8 mm ± 0.1 mm.

そして、ガイドワイヤ３０をその位置に残してカテーテル２０だけを手元側に抜去する際には、図１及び図２に示されるように、矢印Ｂで示されるように操作ワイヤ５を操作部１０側から一杯に牽引操作することにより、処置具起上片４がガイドワイヤ３０を処置具突出口３ｂの壁部に押圧固定する位置まで処置具起上片４を回動させることができる（これまでの側方視型内視鏡では、処置具起上片４をそこまで回動させるという発想がなかった）。   When the guide wire 30 is left at that position and only the catheter 20 is withdrawn to the hand side, the operation wire 5 is moved to the operation portion 10 side as shown by an arrow B as shown in FIGS. The treatment instrument raising piece 4 can be rotated to a position where the treatment instrument raising piece 4 presses and fixes the guide wire 30 to the wall portion of the treatment instrument protruding port 3b (to date). In the side-viewing type endoscope, there was no idea of rotating the treatment instrument raising piece 4 to that extent).

図６〜図１０は上述のように構成された内視鏡の使用状態を順に示しており、先ず図６及び図７に示されるように、ガイドワイヤ３０が内挿された状態のカテーテル２０を内視鏡の処置具挿通チャンネル３に通して、その処置具突出口３ｂから膵胆管１００に向かって突出させたカテーテル２０の先端部分を膵胆管１００内に差し込む。カテーテル２０は一般的な円形断面形状のものである。   6 to 10 sequentially show the use state of the endoscope configured as described above. First, as shown in FIGS. 6 and 7, the catheter 20 with the guide wire 30 inserted therein is shown. The distal end portion of the catheter 20, which is passed through the treatment tool insertion channel 3 of the endoscope and protruded from the treatment tool protrusion 3 b toward the pancreaticobiliary duct 100, is inserted into the pancreaticobiliary duct 100. The catheter 20 has a general circular cross-sectional shape.

そして、手元側でガイドワイヤ３０を動かないように押さえてカテーテル２０だけを引き出す操作を行うことにより、図８に示されるように、ガイドワイヤ３０の先端部分が膵胆管１００内に残った状態でカテーテル２０だけが処置具挿通チャンネル３側に引き戻され始める。   Then, by holding the guide wire 30 so as not to move on the hand side and pulling out only the catheter 20, the distal end portion of the guide wire 30 remains in the pancreaticobiliary duct 100 as shown in FIG. Only the catheter 20 starts to be pulled back to the treatment instrument insertion channel 3 side.

そこで、図９に示されるように、カテーテル２０が処置具突出口３ｂの内側まで退避した状態になったら、処置具起上片４を一杯に起上させることによりガイドワイヤ３０を処置具突出口３ｂの壁部に押圧固定することができる。   Therefore, as shown in FIG. 9, when the catheter 20 is retracted to the inside of the treatment instrument protrusion 3 b, the guide wire 30 is moved up to the treatment instrument protrusion by fully raising the treatment instrument raising piece 4. It can be pressed and fixed to the wall portion of 3b.

その状態になったら、ガイドワイヤ３０の保持にさほど気をつかうことなくカテーテル２０を一気に抜去して、図１０に示されるように、膵胆管１００内にガイドワイヤ３０の先端を残した状態でカテーテル２０だけをスムーズに処置具挿通チャンネル３から抜去することができる。   In this state, the catheter 20 is removed at a stroke without taking much care in holding the guide wire 30, and the catheter is left in the state where the distal end of the guide wire 30 is left in the pancreaticobiliary duct 100 as shown in FIG. Only 20 can be smoothly removed from the treatment instrument insertion channel 3.

そして、ガイドワイヤ３０の先端を膵胆管１００内に保持するための阻止力は内視鏡側の部材である処置具起上片４と先端部本体２に加わって膵胆管１００に加わらないので、膵胆管１００の損傷、閉塞或いはガイドワイヤ３０が膵胆管１００から抜去不能になる等のリスクがない。   Since the blocking force for holding the distal end of the guide wire 30 in the pancreaticobiliary duct 100 is applied to the treatment instrument raising piece 4 and the distal end main body 2 which are members on the endoscope side, it does not enter the pancreaticobiliary duct 100. There is no risk that the pancreaticobiliary duct 100 is damaged, occluded, or the guide wire 30 cannot be removed from the pancreaticobiliary duct 100.

本発明の実施例の側方視型内視鏡の先端部にガイドワイヤの先端部分が押圧固定された状態の側面断面図である。It is side surface sectional drawing of the state by which the front-end | tip part of the guide wire was press-fixed by the front-end | tip part of the side-view type endoscope of the Example of this invention. 本発明の実施例の側方視型内視鏡の先端部にガイドワイヤの先端部分が押圧固定された状態の平面図である。It is a top view in the state where the front-end | tip part of the guide wire was press-fixed to the front-end | tip part of the side-view type endoscope of the Example of this invention. 本発明の実施例の内視鏡の全体構成を示す側面図である。1 is a side view showing an overall configuration of an endoscope according to an embodiment of the present invention. 本発明の実施例の側方視型内視鏡の先端部からカテーテルが突没する状態の側面断面図である。It is side surface sectional drawing of the state which a catheter protrudes and retracts from the front-end | tip part of the side-view type endoscope of the Example of this invention. 本発明の実施例の側方視型内視鏡の先端部からカテーテルが突没する状態の平面図である。It is a top view of the state where a catheter protrudes and retracts from the front-end | tip part of the side-view type endoscope of the Example of this invention. 本発明の実施例の内視鏡の使用状態を例示する略示図である。It is a schematic diagram which illustrates the use condition of the endoscope of the example of the present invention. 本発明の実施例の内視鏡の使用状態を例示する略示図である。It is a schematic diagram which illustrates the use condition of the endoscope of the example of the present invention. 本発明の実施例の内視鏡の使用状態を例示する略示図である。It is a schematic diagram which illustrates the use condition of the endoscope of the example of the present invention. 本発明の実施例の内視鏡の使用状態を例示する略示図である。It is a schematic diagram which illustrates the use condition of the endoscope of the example of the present invention. 本発明の実施例の内視鏡の使用状態を例示する略示図である。It is a schematic diagram which illustrates the use condition of the endoscope of the example of the present invention.

符号の説明Explanation of symbols

１ 挿入部
２ 先端部本体（挿入部の先端）
３ 処置具挿通チャンネル
３ｂ 処置具突出口
４ 処置具起上片
４ｘ 支軸
５ 操作ワイヤ
１０ 操作部
１１ 操作レバー
２０ カテーテル
３０ ガイドワイヤ
１００ 膵胆管 1 Insertion section 2 Tip body (tip of insertion section)
DESCRIPTION OF SYMBOLS 3 Treatment tool insertion channel 3b Treatment tool protrusion 4 Treatment tool raising piece 4x Support shaft 5 Operation wire 10 Operation part 11 Operation lever 20 Catheter 30 Guide wire 100 Pancreaticobiliary duct

Claims (1)

ガイドワイヤを挿脱自在なカテーテルを通すことができる処置具挿通チャンネルが挿入部内に挿通配置されて、上記挿入部の基端側から操作ワイヤを進退操作することにより駆動される処置具起上片が、上記挿入部の先端に側方に向いて開口する処置具突出口内に配置され、上記処置具突出口から外方に突出する上記カテーテルの突出方向を上記処置具起上片で制御することができるように構成された側方視型内視鏡の先端部において、
上記ガイドワイヤのみを上記処置具突出口から外方に突出させた状態のときに、上記操作ワイヤを上記挿入部の基端側から牽引することにより、上記処置具起上片で上記ガイドワイヤを上記処置具突出口の壁部に押圧固定することができるように構成したことを特徴とする側方視型内視鏡の先端部。 A treatment instrument raising piece that is driven by an operation wire being advanced and retracted from a proximal end side of the insertion section, with a treatment instrument insertion channel through which a guide wire can be inserted and removed, inserted through the insertion section. Is disposed in a treatment instrument projection opening that opens laterally at the distal end of the insertion portion, and the projection direction of the catheter projecting outward from the treatment instrument projection opening is controlled by the treatment instrument raising piece. In the distal end portion of the side-viewing endoscope configured to be able to
When only the guide wire is protruded outward from the treatment instrument projection port, the operation wire is pulled from the proximal end side of the insertion portion, so that the guide wire is moved by the treatment instrument raising piece. A distal end portion of a side-view type endoscope configured to be able to be pressed and fixed to a wall portion of the treatment instrument protruding port.
JP2005059875A 2005-03-04 2005-03-04 Distal end of side-viewing type endoscope Withdrawn JP2006239184A (en)

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Cited By (1)

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Publication number Priority date Publication date Assignee Title
CN106821285A (en) * 2017-02-08 2017-06-13 深圳开立生物医疗科技股份有限公司 A kind of endoscope headstock and endoscope for eliminating sterilization dead angle

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JP2002034905A (en) * 2000-04-17 2002-02-05 Olympus Optical Co Ltd Endoscope, and its endoscope system
JP2003116777A (en) * 2001-10-12 2003-04-22 Olympus Optical Co Ltd Endoscope system
JP2003305002A (en) * 2002-04-17 2003-10-28 Olympus Optical Co Ltd Endoscope
JP2004057814A (en) * 2002-06-07 2004-02-26 Olympus Corp Treatment instrument for endoscope and endoscope unit

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Publication number Priority date Publication date Assignee Title
JP2002034905A (en) * 2000-04-17 2002-02-05 Olympus Optical Co Ltd Endoscope, and its endoscope system
JP2003116777A (en) * 2001-10-12 2003-04-22 Olympus Optical Co Ltd Endoscope system
JP2003305002A (en) * 2002-04-17 2003-10-28 Olympus Optical Co Ltd Endoscope
JP2004057814A (en) * 2002-06-07 2004-02-26 Olympus Corp Treatment instrument for endoscope and endoscope unit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106821285A (en) * 2017-02-08 2017-06-13 深圳开立生物医疗科技股份有限公司 A kind of endoscope headstock and endoscope for eliminating sterilization dead angle

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