JP2002253484A - Distal end of duodenoscope - Google Patents
Distal end of duodenoscopeInfo
- Publication number
- JP2002253484A JP2002253484A JP2001051988A JP2001051988A JP2002253484A JP 2002253484 A JP2002253484 A JP 2002253484A JP 2001051988 A JP2001051988 A JP 2001051988A JP 2001051988 A JP2001051988 A JP 2001051988A JP 2002253484 A JP2002253484 A JP 2002253484A
- Authority
- JP
- Japan
- Prior art keywords
- distal end
- treatment tool
- observation
- observation window
- end portion
- 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.)
- Withdrawn
Links
Classifications
-
- 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
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Biomedical Technology (AREA)
- Optics & Photonics (AREA)
- Pathology (AREA)
- Radiology & Medical Imaging (AREA)
- Biophysics (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Endoscopes (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、十二指腸から胆
管内に可撓性造影チューブ等を挿入するために用いられ
る十二指腸内視鏡の先端部に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a distal end portion of a duodenal endoscope used for inserting a flexible contrast tube or the like from a duodenum into a bile duct.
【０００２】[0002]
【従来の技術】図４は従来の十二指腸内視鏡の先端部の
一例を示しており、挿入部の先端に設けられた先端部本
体１０の側面に観察窓５と照明窓６とが前後に並んで配
置され、それと並列に並んで形成された処置具突出口１
２内に処置具起上片１３が配置されている。2. Description of the Related Art FIG. 4 shows an example of a distal end portion of a conventional duodenal endoscope, in which an observation window 5 and an illumination window 6 are provided on the side of a distal end body 10 provided at the distal end of an insertion portion. The treatment tool outlet 1 which is arranged side by side and formed in parallel with the
The treatment instrument raising piece 13 is arranged in the inside 2.
【０００３】Ｖ−Ｖ断面を図示する図５に示されるよう
に、処置具起上片１３は支軸１４によって先端部本体１
０に支持されていて、手元側から操作ワイヤ１５を進退
操作することによって支軸１４を中心に回動する。As shown in FIG. 5 showing a VV cross section, a treatment instrument raising piece 13 is supported by
When the operation wire 15 is moved forward and backward from the hand side, it is turned around the support shaft 14.
【０００４】処置具突出口１２の奥の部分には処置具挿
通チャンネル１１の出口開口が接続されており、処置具
挿通チャンネル１１に挿通された可撓性造影チューブ５
０の先端部分５０ａが、処置具突出口１２から突出され
て処置具起上片１３により起上され、胆管１００に挿入
される。An outlet opening of the treatment instrument insertion channel 11 is connected to a portion behind the treatment instrument protrusion port 12, and the flexible contrast tube 5 inserted through the treatment instrument insertion channel 11 is connected.
The distal end portion 50 a of the zero is protruded from the treatment tool outlet 12, is raised by the treatment tool raising piece 13, and is inserted into the bile duct 100.
【０００５】先端部本体１０には、処置具起上片１３に
よって起上される状態の可撓性造影チューブ５０を支え
る支点となる支持曲壁２０が形成されており、可撓性造
影チューブ５０が支持曲壁２０と処置具起上片１３との
間で曲げられて先端部分５０ａが胆管１００に差し込ま
れる。[0005] The distal end body 10 is formed with a curved support wall 20 serving as a fulcrum for supporting the flexible contrast tube 50 raised by the treatment instrument raising piece 13. Is bent between the support curved wall 20 and the treatment instrument raising piece 13, and the distal end portion 50 a is inserted into the bile duct 100.
【０００６】この時、解剖学的な方向性に合わせて可撓
性造影チューブ５０の先端部分５０ａを先端部本体１０
から斜め後方に突き出す必要があるので、観察光軸Ｘも
後方へ１５°程度の斜視（後方斜視）になっている。At this time, the distal end portion 50a of the flexible contrast tube 50 is adjusted according to the anatomical direction.
, The observation optical axis X also has a perspective of about 15 ° rearward (rear perspective).
【０００７】[0007]
【発明が解決しようとする課題】図５に示されるよう
に、上述のような従来の十二指腸内視鏡の先端部本体１
０を側方から見たとき、支持曲壁２０は、観察窓５の表
面における観察光軸位置Ｆｘより相当に後方に位置して
いる。As shown in FIG. 5, a distal end body 1 of a conventional duodenal endoscope as described above.
When 0 is viewed from the side, the curved support wall 20 is located considerably behind the observation optical axis position Fx on the surface of the observation window 5.
【０００８】これは、生検鉗子等のようなコイルパイプ
製のシースを有する処置具を使用する際には、小さな範
囲で急激に屈曲させられた起上部分の通過抵抗が、僅か
な起上角度の増加でも急激に増大するため、支持曲壁２
０を観察光軸位置Ｆｘよりできるだけ後方に形成して、
起上角度が緩くても処置具が観察視野範囲Ｖの中央付近
に突出されるようにしているからである。[0008] This is because when using a treatment instrument having a sheath made of a coil pipe such as a biopsy forceps or the like, the passage resistance of the rising portion which is sharply bent in a small area is slightly increased. The support curved wall 2
0 is formed as much as possible behind the observation optical axis position Fx,
This is because the treatment tool is made to protrude near the center of the observation visual field range V even when the raising angle is small.
【０００９】しかし、十二指腸内視鏡にとって極めて重
要な用途である胆管１００に対する可撓性造影チューブ
５０の挿入の場合には、図５に示されるように、処置具
突出口１２内で曲がり癖が付きながら突出される可撓性
造影チューブ５０の先端部分５０ａが、胆管１００に挿
入すべく斜め後方に向けて突出されると、観察視野範囲
Ｖの後端付近でしか観察されないので、挿入確認等が難
しく、観察視野範囲Ｖから外れてしまう場合も珍しくな
い。However, in the case of inserting the flexible contrast tube 50 into the bile duct 100, which is an extremely important use for a duodenal endoscope, as shown in FIG. When the distal end portion 50a of the flexible contrast tube 50 protruding while being attached is projected obliquely rearward to be inserted into the bile duct 100, the distal end portion 50a is observed only near the rear end of the observation visual field range V. Is difficult, and it is not unusual for the case to be out of the observation visual field range V.
【００１０】そこで本発明は、曲がり癖が付きながら斜
め後方に向けて突出される可撓性造影チューブの先端
を、観察視野範囲の中央寄りの位置で観察して、胆管等
に容易に挿入させることができる十二指腸内視鏡の先端
部を提供することを目的とする。Accordingly, the present invention observes the distal end of a flexible contrast tube projected obliquely rearward while having a bending habit at a position near the center of the observation visual field range, and allows it to be easily inserted into a bile duct or the like. It is an object of the present invention to provide a distal end portion of a duodenal endoscope which can be used.
【００１１】[0011]
【課題を解決するための手段】上記の目的を達成するた
め、本発明の十二指腸内視鏡の先端部は、挿入部の先端
の側面に観察窓と処置具突出口とが並列に並んで配置さ
れて、処置具突出口から突出される可撓性造影チューブ
の突出方向を遠隔操作によって変換するための処置具起
上片が処置具突出口内に配置され、処置具起上片によっ
て起上される可撓性造影チューブを支える支点となる支
持曲壁が処置具突出口内の後端壁部分に形成された十二
指腸内視鏡の先端部において、挿入部の先端部分を側方
から見たとき、支持曲壁が、観察窓表面における観察光
軸位置より先側であって観察窓瞳の前端位置より後方の
位置に形成されているものである。In order to achieve the above object, the distal end of the duodenal endoscope of the present invention has an observation window and a treatment tool outlet arranged side by side on the side surface of the distal end of the insertion portion. Then, a treatment tool raising piece for changing the protruding direction of the flexible contrast tube protruding from the treatment tool protrusion port by remote control is disposed in the treatment tool protrusion port, and is raised by the treatment tool raising piece. When the distal end portion of the insertion portion is viewed from the side at the distal end portion of the duodenal endoscope in which the support curved wall serving as a fulcrum for supporting the flexible contrast tube is formed at the rear end wall portion inside the treatment tool outlet, The curved support wall is formed on the observation window surface at a position ahead of the observation optical axis position and at a position behind the front end position of the observation window pupil.
【００１２】[0012]
【発明の実施の形態】図面を参照して本発明の実施例を
説明する。図３は十二指腸内視鏡の全体構成を示してお
り、可撓性の挿入部１の基端に操作部２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 entire configuration of the duodenal endoscope. An operation unit 2 is connected to a proximal end of a flexible insertion unit 1.
【００１３】挿入部１内には処置具挿通チャンネル１１
が全長にわたって挿通配置され、その入口１１ａは操作
部２の下端部に斜め上方に向けて突設され、出口は、挿
入部１の先端に連結された先端部本体１０に配置されて
いる。In the insertion section 1, a treatment instrument insertion channel 11 is provided.
Is inserted through the entire length, the entrance 11 a is provided to project obliquely upward at the lower end of the operation section 2, and the exit is disposed in the distal end body 10 connected to the distal end of the insertion section 1.
【００１４】その結果、処置具挿通チャンネル１１に挿
通された処置具（可撓性造影チューブ５０）の先端部分
５０ａが、先端部本体１０の側面に形成された処置具突
出口１２から突出し、その突出方向を変える操作を、操
作部２に配置された起上片操作ノブ３によって行うこと
ができる。As a result, the distal end portion 50a of the treatment instrument (flexible contrast tube 50) inserted through the treatment instrument insertion channel 11 projects from the treatment instrument outlet 12 formed on the side surface of the distal end body 10, and The operation of changing the protruding direction can be performed by the raising piece operation knob 3 arranged on the operation unit 2.
【００１５】図２は、挿入部１の先端に連結された先端
部本体１０の側面の正面図であり、観察窓５と照明窓６
とが前後に並んで配置されている。観察窓５の奥に配置
されている観察光学系は、観察光軸が例えば１５°斜め
後方を向いた後方斜視光学系である。FIG. 2 is a front view of a side surface of the distal end body 10 connected to the distal end of the insertion section 1, showing an observation window 5 and an illumination window 6.
And are arranged side by side. The observation optical system disposed behind the observation window 5 is a rear oblique optical system in which the observation optical axis is directed obliquely rearward by, for example, 15 °.
【００１６】破線で示されるＦは、観察窓５の表面にお
ける観察範囲の外縁である観察窓瞳であり、Ｆｆは観察
窓瞳Ｆの前端位置、Ｆｘは、観察窓５の表面における観
察光軸位置である。F shown by a broken line is an observation window pupil which is the outer edge of the observation range on the surface of the observation window 5, Ff is a front end position of the observation window pupil F, and Fx is an observation optical axis on the surface of the observation window 5. Position.
【００１７】観察窓５及び照明窓６と並列に並んで形成
された処置具突出口１２内には、Ｉ−Ｉ断面を図示する
図１にも示されるように、処置具起上片１３が支軸１４
によって回動自在に先端部本体１０に支持されている。As shown in FIG. 1 showing a cross section taken along the line II, a treatment instrument raising piece 13 is provided in the treatment instrument protrusion 12 formed in parallel with the observation window 5 and the illumination window 6. Support shaft 14
It is rotatably supported by the tip body 10.
【００１８】処置具突出口１２の奥の部分には処置具挿
通チャンネル１１の出口開口が配置されており、処置具
挿通チャンネル１１に挿通された可撓性造影チューブ５
０の先端部分５０ａが、処置具突出口１２から突出さ
れ、処置具起上片１３により起上されて胆管１００に挿
入される。An exit opening of the treatment instrument insertion channel 11 is disposed at a part behind the treatment instrument protrusion port 12, and the flexible contrast tube 5 inserted through the treatment instrument insertion channel 11 is provided.
The distal end portion 50a of the zero is protruded from the treatment tool outlet port 12, is raised by the treatment tool raising piece 13, and is inserted into the bile duct 100.
【００１９】そして、操作部２に配置された起上片操作
ノブ３で操作ワイヤ１５を進退操作することにより、処
置具起上片１３が支軸１４を中心に回動して可撓性造影
チューブ５０が起上され、その先端部分５０ａの突出方
向が変化する。When the operating wire 15 is advanced or retracted by the raising piece operating knob 3 arranged on the operating section 2, the treatment tool raising piece 13 is rotated about the support shaft 14 to obtain a flexible contrast image. The tube 50 is raised, and the protruding direction of the distal end portion 50a changes.
【００２０】先端部本体１０には、処置具起上片１３に
より前側から押し戻されるようにして起上される可撓性
造影チューブ５０の後面側を支える支点となる支持曲壁
２０が、滑らかなカーブで処置具突出口１２内の後端壁
部分に形成されている。The distal end main body 10 has a smooth curved support wall 20 serving as a fulcrum for supporting the rear side of the flexible contrast tube 50 which is raised by being pushed back from the front side by the treatment instrument raising piece 13. A curved portion is formed on the rear end wall portion inside the treatment tool outlet 12.
【００２１】そしてこの支持曲壁２０は、先端部本体１
０を側方から見たとき、観察光軸Ｘより前方に位置して
いる。その結果、図１に示されるように、胆管１００に
向けて曲がり癖が付きながら斜め後方に突出される可撓
性造影チューブ５０の先端部分５０ａが、観察視野範囲
Ｖの中央近くに観察される。The curved support wall 20 is attached to the tip main body 1.
When 0 is viewed from the side, it is located forward of the observation optical axis X. As a result, as shown in FIG. 1, the distal end portion 50 a of the flexible contrast tube 50 that projects obliquely backward while bending toward the bile duct 100 is observed near the center of the observation visual field range V. .
【００２２】ただし、支持曲壁２０が観察窓瞳Ｆの前端
位置Ｆｆより前方に位置すると、処置具突出口１２から
突出された処置具が観察視野範囲Ｖより前方に外れて観
察できなくなる場合があるので、支持曲壁２０は観察窓
瞳Ｆの前端位置Ｆｆより後方に位置している。However, if the curved support wall 20 is positioned ahead of the front end position Ff of the observation window pupil F, the treatment tool protruding from the treatment tool outlet 12 may be displaced forward from the observation visual field range V and cannot be observed. Therefore, the support curved wall 20 is located behind the front end position Ff of the observation window pupil F.
【００２３】このようにして、図１及び図２に示される
ように、支持曲壁２０が観察光軸位置Ｆｘと観察窓瞳Ｆ
の前端位置Ｆｆとの間の範囲Ａに位置していることによ
り、可撓性造影チューブ５０の先端部分５０ａが、常に
観察視野範囲Ｖ内に良好な状態で観察される。In this way, as shown in FIGS. 1 and 2, the curved support wall 20 is positioned between the observation optical axis position Fx and the observation window pupil F.
Is located in the range A between the front end position Ff and the front end portion 50a of the flexible contrast tube 50 is always observed in a favorable state within the observation visual field range V.
【００２４】[0024]
【発明の効果】本発明によれば、挿入部の先端部分を側
方から見たとき、処置具突出口内の後端壁に形成された
支持曲壁が、観察窓表面における観察光軸位置より先側
であって観察窓瞳の前端位置より後方の位置にあるの
で、曲がり癖が付きながら斜め後方に向けて突出される
可撓性造影チューブの先端を、観察視野範囲の中央寄り
の位置で観察して胆管等に容易に挿入させることができ
る。According to the present invention, when the distal end portion of the insertion portion is viewed from the side, the curved support wall formed on the rear end wall in the treatment tool outlet is positioned more than the observation optical axis position on the observation window surface. Since it is on the front side and at a position behind the front end position of the observation window pupil, the tip of the flexible contrast tube protruding obliquely rearward while having a bending habit is positioned at a position near the center of the observation visual field range. It can be easily observed and inserted into a bile duct or the like.
【図１】本発明の実施例の十二指腸内視鏡の先端部の図
２におけるＩ−Ｉ断面図である。FIG. 1 is a sectional view taken along the line II of FIG. 2 of a distal end portion of a duodenal endoscope according to an embodiment of the present invention.
【図２】本発明の実施例の十二指腸内視鏡の先端部の観
察窓等が配置された側面部分の正面図である。FIG. 2 is a front view of a side portion where an observation window and the like at a distal end portion of the duodenal endoscope according to the embodiment of the present invention are arranged.
【図３】本発明の実施例の十二指腸内視鏡の全体構成を
示す外観図である。FIG. 3 is an external view showing the entire configuration of a duodenal endoscope according to an embodiment of the present invention.
【図４】従来の十二指腸内視鏡の先端部の斜視図であ
る。FIG. 4 is a perspective view of a distal end portion of a conventional duodenal endoscope.
【図５】従来の十二指腸内視鏡の先端部の図４における
Ｖ−Ｖ断面図である。FIG. 5 is a sectional view of the distal end of the conventional duodenal endoscope taken along line VV in FIG. 4;
５ 観察窓 １０ 先端部本体 １２ 処置具突出口 １３ 処置具起上片 １４ 支軸 １５ 操作ワイヤ ２０ 支持曲壁 ５０ 可撓性造影チューブ １００ 胆管 Ｆ 観察窓瞳 Ｆｆ 観察窓瞳の前端位置 Ｆｘ 観察光軸位置 Ｖ 観察視野範囲 Ｘ 観察光軸 DESCRIPTION OF SYMBOLS 5 Observation window 10 Tip main body 12 Treatment instrument protrusion 13 Treatment instrument elevating piece 14 Support shaft 15 Operation wire 20 Support curved wall 50 Flexible contrast tube 100 Bile duct F Observation window pupil Ff Front end position of observation window pupil Fx Observation light Axis position V Observation field of view X Observation optical axis
Claims (1)
口とが並列に並んで配置されて、上記処置具突出口から
突出される可撓性造影チューブの突出方向を遠隔操作に
よって変換するための処置具起上片が上記処置具突出口
内に配置され、上記処置具起上片によって起上される可
撓性造影チューブを支える支点となる支持曲壁が上記処
置具突出口内の後端壁部分に形成された十二指腸内視鏡
の先端部において、 上記挿入部の先端部分を側方から見たとき、上記支持曲
壁が、上記観察窓表面における観察光軸位置より先側で
あって観察窓瞳の前端位置より後方の位置に形成されて
いることを特徴とする十二指腸内視鏡の先端部。An observation window and a treatment tool outlet are arranged side by side on the side surface of a distal end of an insertion portion, and a projecting direction of a flexible contrast tube projected from the treatment tool outlet is remotely controlled. A treatment tool raising piece for conversion is disposed in the treatment tool protrusion, and a support curved wall serving as a fulcrum for supporting a flexible contrast tube raised by the treatment tool raising piece is provided in the treatment tool protrusion. In the distal end portion of the duodenal endoscope formed in the rear end wall portion, when the distal end portion of the insertion portion is viewed from the side, the support curved wall is located on the front side of the observation optical axis position on the observation window surface. A distal end portion of a duodenal endoscope, wherein the distal end portion is formed at a position behind a front end position of an observation window pupil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001051988A JP2002253484A (en) | 2001-02-27 | 2001-02-27 | Distal end of duodenoscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001051988A JP2002253484A (en) | 2001-02-27 | 2001-02-27 | Distal end of duodenoscope |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2002253484A true JP2002253484A (en) | 2002-09-10 |
Family
ID=18912686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001051988A Withdrawn JP2002253484A (en) | 2001-02-27 | 2001-02-27 | Distal end of duodenoscope |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2002253484A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006004123A1 (en) * | 2004-07-05 | 2006-01-12 | Olympus Medical Systems Corp. | Electronic endoscope |
| JP2006239312A (en) * | 2005-03-07 | 2006-09-14 | Olympus Medical Systems Corp | Endoscope |
| WO2006106881A1 (en) * | 2005-03-31 | 2006-10-12 | Olympus Medical Systems Corp. | Endoscope |
| WO2012075707A1 (en) * | 2010-12-10 | 2012-06-14 | 广州宝胆医疗器械科技有限公司 | Duodenoscope system integrated with infrared thermal scanner |
| WO2016035386A1 (en) * | 2014-09-04 | 2016-03-10 | オリンパス株式会社 | Front end structure for endoscope |
| WO2019077692A1 (en) * | 2017-10-18 | 2019-04-25 | オリンパス株式会社 | Insertion assistance system |
| JP2020121154A (en) * | 2016-10-14 | 2020-08-13 | Hoya株式会社 | Endoscope and endoscope cap |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62236529A (en) * | 1986-04-07 | 1987-10-16 | 旭光学工業株式会社 | Endoscope for contrasting bile duct |
| JPH01500328A (en) * | 1986-06-27 | 1989-02-09 | リヒャルト ウォルフ ゲーエムベーハー | horizontal endoscope |
-
2001
- 2001-02-27 JP JP2001051988A patent/JP2002253484A/en not_active Withdrawn
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62236529A (en) * | 1986-04-07 | 1987-10-16 | 旭光学工業株式会社 | Endoscope for contrasting bile duct |
| JPH01500328A (en) * | 1986-06-27 | 1989-02-09 | リヒャルト ウォルフ ゲーエムベーハー | horizontal endoscope |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006004123A1 (en) * | 2004-07-05 | 2006-01-12 | Olympus Medical Systems Corp. | Electronic endoscope |
| US9007449B2 (en) | 2004-07-05 | 2015-04-14 | Olympus Medical Systems Corp. | Electronic endoscope |
| JP2006239312A (en) * | 2005-03-07 | 2006-09-14 | Olympus Medical Systems Corp | Endoscope |
| WO2006106881A1 (en) * | 2005-03-31 | 2006-10-12 | Olympus Medical Systems Corp. | Endoscope |
| US8246534B2 (en) | 2005-03-31 | 2012-08-21 | Olympus Medical Systems Corp. | Endoscope |
| WO2012075707A1 (en) * | 2010-12-10 | 2012-06-14 | 广州宝胆医疗器械科技有限公司 | Duodenoscope system integrated with infrared thermal scanner |
| US10188267B2 (en) | 2014-09-04 | 2019-01-29 | Olympus Corporation | Distal end structure of endoscope |
| JP5989277B2 (en) * | 2014-09-04 | 2016-09-07 | オリンパス株式会社 | Endoscope tip structure |
| WO2016035386A1 (en) * | 2014-09-04 | 2016-03-10 | オリンパス株式会社 | Front end structure for endoscope |
| JP2020121154A (en) * | 2016-10-14 | 2020-08-13 | Hoya株式会社 | Endoscope and endoscope cap |
| WO2019077692A1 (en) * | 2017-10-18 | 2019-04-25 | オリンパス株式会社 | Insertion assistance system |
| CN111132597A (en) * | 2017-10-18 | 2020-05-08 | 奥林巴斯株式会社 | Insertion aid system |
| JPWO2019077692A1 (en) * | 2017-10-18 | 2020-11-05 | オリンパス株式会社 | Insertion assistance system |
| JP7019712B2 (en) | 2017-10-18 | 2022-02-15 | オリンパス株式会社 | Insertion assist system |
| CN111132597B (en) * | 2017-10-18 | 2022-06-14 | 奥林巴斯株式会社 | Insertion aid system |
| US11490796B2 (en) | 2017-10-18 | 2022-11-08 | Olympus Corporation | Insertion assist system |
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