JP3276200B2 - Endoscope forceps raising device - Google Patents
Endoscope forceps raising deviceInfo
- Publication number
- JP3276200B2 JP3276200B2 JP10633293A JP10633293A JP3276200B2 JP 3276200 B2 JP3276200 B2 JP 3276200B2 JP 10633293 A JP10633293 A JP 10633293A JP 10633293 A JP10633293 A JP 10633293A JP 3276200 B2 JP3276200 B2 JP 3276200B2
- Authority
- JP
- Japan
- Prior art keywords
- guide tube
- operation wire
- forceps raising
- distal end
- forceps
- 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 - Fee Related
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
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Biomedical Technology (AREA)
- Medical Informatics (AREA)
- Optics & Photonics (AREA)
- Pathology (AREA)
- Radiology & Medical Imaging (AREA)
- Biophysics (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Instruments For Viewing The Inside Of Hollow Bodies (AREA)
- Endoscopes (AREA)
Description
【０００１】[0001]
【産業上の利用分野】この発明は、鉗子等の処置具の先
端を起上操作するための内視鏡の鉗子起上装置に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a forceps raising device of an endoscope for raising the distal end of a treatment tool such as forceps.
【０００２】[0002]
【従来の技術】内視鏡の鉗子起上装置は一般に、挿入部
の先端に設けられた鉗子起上片を、手元側操作部から進
退操作される操作ワイヤを介して駆動するようになって
いる。2. Description of the Related Art In general, a forceps raising device of an endoscope is configured to drive a forceps raising piece provided at a distal end of an insertion portion via an operation wire which is advanced and retracted from a proximal operation portion. I have.
【０００３】しかし、そのような操作ワイヤと操作ワイ
ヤ案内管との間に先端側から侵入する汚液等をそのまま
放置しておくと、それが固まって操作ワイヤの操作不良
になってしまうと共に、次の患者に対して汚液を介して
の感染が生じるおそれがある。[0003] However, if the waste liquid or the like that invades from the distal end side between the operation wire and the operation wire guide tube is left as it is, it hardens and the operation of the operation wire becomes defective. There is a risk of infection through the sewage to the next patient.
【０００４】そこで従来は、鉗子起上操作ワイヤ案内管
の開口部にパッキンを設けて、操作ワイヤと案内管との
間に先端側から汚液等が侵入しないようにしたもの（実
開昭５２−６７７９０号）や、操作ワイヤ案内管の手元
側に注液口を連通形成して、そこから洗浄液を注入する
ことにより、案内管内に侵入した汚液等を流し出すよう
にしたもの（実開昭５２−３８９８７号）などがあっ
た。Therefore, conventionally, packing has been provided at the opening of the forceps raising operation wire guide tube so as to prevent infiltration of dirt or the like from the distal end side between the operation wire and the guide tube (see Japanese Utility Model Application Laid-Open No. 52-163). No.-67790), a liquid injection port is formed in communication with a hand side of an operation wire guide pipe, and a cleaning liquid is injected from the liquid injection pipe so that contaminated liquid or the like that has entered the guide pipe flows out. 52-38987).
【０００５】[0005]
【発明が解決しようとする課題】しかし、操作ワイヤ案
内管の開口部にパッキンを設けたものでも、実際には内
部への汚液の侵入を完全に防ぐことは困難である。そし
て内部にいったん汚液等が入ってしまうと、パッキンの
存在により、汚液等を洗浄排出することができないの
で、操作ワイヤの固着現象による操作不良をひき起こし
ていた。However, it is difficult to completely prevent the infiltration of waste liquid into the inside even in the case where the packing is provided at the opening of the operation wire guide tube. Once the dirt or the like enters the inside, the dirt or the like cannot be washed and discharged due to the presence of the packing, so that operation failure due to the sticking phenomenon of the operation wire has been caused.
【０００６】一方、操作ワイヤ案内管の手元側に注液口
を形成したものでは、操作ワイヤ案内管の先端側から洗
浄液を排出しなければならないので、先側の開口部にパ
ッキンを設けるわけにいかない。On the other hand, in the case where the injection port is formed at the proximal side of the operation wire guide tube, the cleaning liquid must be discharged from the distal end side of the operation wire guide tube. do not go.
【０００７】そのため、一回の使用毎に多量の汚液が操
作ワイヤと操作ワイヤ案内管との間に侵入するので、使
用後の洗浄を少しでも忘れると故障及び感染の原因にな
るだけでなく、使用後の洗浄を相当念入りにやっても汚
液を完全に排出させるのが容易でない欠点があった。[0007] Therefore, a large amount of waste liquid infiltrates between the operation wire and the operation wire guide tube each time it is used. However, there is a disadvantage that it is not easy to completely discharge the waste liquid even if the washing after use is performed very carefully.
【０００８】そこで本発明は、内視鏡使用中に鉗子起上
操作ワイヤと操作ワイヤ案内管との間の隙間に先側から
汚液等が侵入し難く、しかも使用後にはその隙間を容易
に洗浄することができる内視鏡の鉗子起上装置を提供す
ることを目的とする。Therefore, the present invention makes it difficult for dirt or the like to enter the gap between the forceps raising operation wire and the operation wire guide tube from the front side during use of the endoscope, and to easily remove the gap after use. An object of the present invention is to provide a forceps raising device for an endoscope that can be washed.
【０００９】[0009]
【課題を解決するための手段】上記の目的を達成するた
め、本発明の内視鏡の鉗子起上装置は、鉗子起上操作ワ
イヤ案内管の開口部にパッキンを設けて操作ワイヤと案
内管との間の隙間をシールした内視鏡の鉗子起上装置に
おいて、上記案内管内に、その基端部側から液体を注入
するための注液口を設けると共に、上記案内管に上記パ
ッキンより内側において連通して外面に開口するバイパ
ス孔と、上記バイパス孔の開口を塞ぐための着脱自在な
栓体とを設けたことを特徴とする。In order to achieve the above object, a forceps raising device for an endoscope according to the present invention is provided with a packing provided at an opening of a forceps raising operation wire guide tube and an operation wire and a guide tube. In a forceps raising device of an endoscope in which a gap between the guide tube and the guide tube is sealed, a liquid inlet for injecting a liquid from the base end side is provided in the guide tube, and the guide tube is provided inside the packing with respect to the packing. Wherein a bypass hole communicating with and opening to the outer surface is provided, and a detachable plug for closing the opening of the bypass hole is provided.
【００１０】なお、上記栓体を、鉗子起上装置が配置さ
れた内視鏡の先端部本体を囲むように電気絶縁材によっ
て形成されて上記先端部本体に対して着脱自在に設けら
れた先端キャップに形成するとよい。The stopper is formed of an electrically insulating material so as to surround the distal end main body of the endoscope in which the forceps raising device is disposed, and is provided detachably with respect to the distal end main body. It is good to form in a cap.
【００１１】[0011]
【実施例】図面を参照して実施例を説明する。図１は、
内視鏡の挿入部先端の平面断面図、図２は側面断面図で
あり、細長い可撓管の先端に遠隔操作によって屈曲自在
に形成された湾曲部１の先端に、金属製の先端部本体２
が連結されている。An embodiment will be described with reference to the drawings. FIG.
FIG. 2 is a side cross-sectional view of the distal end of the insertion portion of the endoscope. FIG. 2 is a side cross-sectional view. 2
Are connected.
【００１２】本実施例の内視鏡は、観察方向が管軸の側
方を向いたいわゆる側方視型のものであり、観察窓３と
照明窓４とが、側方に向けて前後に並んで配置されてい
る。５及び６は、観察窓３の表面に水及び空気を噴出さ
せるための送気送水管路である。The endoscope of this embodiment is of a so-called side-view type in which the observation direction is directed to the side of the tube axis. They are arranged side by side. Reference numerals 5 and 6 denote air supply / water supply conduits for ejecting water and air to the surface of the observation window 3.
【００１３】先端部本体２は、電気絶縁性のプラスチッ
ク材からなる先端キャップ８によって囲まれており、先
端部本体２の先端面に突設された先割れの球状ピン９
を、先端キャップ８の先端内面に穿設された係合孔１０
に係合させることによって、先端キャップ８が先端部本
体２に固定され、球状ピン９と係合孔１０との係合を解
くことによって両者は分離される。The distal end body 2 is surrounded by a distal end cap 8 made of an electrically insulating plastic material.
Into an engagement hole 10 formed in the inner surface of the tip of the tip cap 8.
, The tip cap 8 is fixed to the tip portion main body 2, and the spherical pin 9 and the engagement hole 10 are disengaged from each other by disengagement.
【００１４】先端キャップ８と先端部本体２との間に
は、鉗子等の処置具類の先端部の突出方向を変えるため
の鉗子起上台１２を収容する鉗子起上室１３が、観察窓
３及び照明窓４と平行に形成されている。Between the distal end cap 8 and the distal end body 2, a forceps raising chamber 13 for accommodating a forceps raising base 12 for changing a projecting direction of a distal end of a treatment tool such as a forceps is provided in the observation window 3. And the illumination window 4.
【００１５】図２に示されるように、鉗子起上室１３に
連通して、先端部本体２の下部後端には、鉗子等の処置
具を挿通するために挿入部内に全長にわたって通された
鉗子チャンネル１４の先端が接続されている。As shown in FIG. 2, the distal end main body 2 communicates with the forceps raising chamber 13 and passes through the entire length of the lower end of the distal end body 2 into the insertion portion for inserting a treatment tool such as forceps. The distal end of the forceps channel 14 is connected.
【００１６】また、図２及び正面断面図である図３に示
されるように、鉗子起上台１２は、先端部本体２に差し
込まれた軸１５を中心に鉗子起上室１３内で回動できる
ように配置されている。As shown in FIG. 2 and FIG. 3 which is a front sectional view, the forceps raising table 12 can rotate in a forceps raising chamber 13 around a shaft 15 inserted into the distal end body 2. Are arranged as follows.
【００１７】鉗子起上操作ワイヤ１７の先端は、鉗子起
上台１２の回動端側に連結され、先端部本体２に貫通し
て穿設されたガイド孔１８と、そのガイド孔１８の後端
に接続された操作ワイヤ案内管１９内に進退自在に挿通
されている。２０は接続パイプである。The distal end of the forceps raising operation wire 17 is connected to the rotating end side of the forceps raising table 12, and a guide hole 18 penetrated through the distal end body 2 and a rear end of the guide hole 18. Is inserted through the operation wire guide tube 19 connected to the main body so as to be able to advance and retreat. Reference numeral 20 denotes a connection pipe.
【００１８】したがって、挿入部の基端側に連結された
図示されていない操作部から操作ワイヤ１７を進退操作
することによって、鉗子起上台１２が軸１５を中心に回
動して、鉗子起上室１３から外方に突出される鉗子等の
先端の向きが変えられる。Therefore, by operating the operating wire 17 from the operating portion (not shown) connected to the base end side of the insertion portion, the forceps raising base 12 is rotated about the shaft 15 to raise the forceps raising portion. The direction of the tip of the forceps or the like protruding outward from the chamber 13 can be changed.
【００１９】操作ワイヤ１７には、先端近傍部分から先
端部本体２内に位置する部分までの間、合成樹脂製の薄
い被覆チューブ２１が、例えば熱収縮によって被覆され
ている。The operation wire 17 is covered with a thin coating tube 21 made of a synthetic resin, for example, by heat shrinkage, from a portion near the distal end to a portion located in the distal end body 2.
【００２０】そして、被覆チューブ２１の先端部分と操
作ワイヤ１７との間の隙間は、接着剤２４によって水密
的に塞がれていて、それによって、先端側からその隙間
内への汚液等の侵入やしみ込み等が防止されている。The gap between the distal end portion of the coating tube 21 and the operation wire 17 is closed in a water-tight manner by an adhesive 24, so that a dirt or the like from the distal end side into the gap can be prevented. Intrusion and soaking are prevented.
【００２１】操作ワイヤ案内管１９の開口部にあたるガ
イド孔１８の口元部分には、被覆チューブ２１の外周面
に密着するように、シール用のＯリング２２が、前方に
抜け出さないように押さえ環２３で押さえられて装着さ
れている。したがって、操作ワイヤ１７と操作ワイヤ案
内管１９との間の隙間には汚液等がほとんど侵入しな
い。At the mouth of the guide hole 18 corresponding to the opening of the operation wire guide tube 19, an O-ring 22 for sealing is held so as to be in close contact with the outer peripheral surface of the coating tube 21 so as not to come out forward. It is held down and mounted. Therefore, the waste liquid or the like hardly enters the gap between the operation wire 17 and the operation wire guide tube 19.
【００２２】また、図１に示されるように、操作ワイヤ
案内管１９と真直に通じるガイド孔１８の途中から、Ｏ
リング２２より内側（奥側）において分岐形成されたバ
イパス孔２５が、前方に向けて先端部本体２に開口して
いる。Further, as shown in FIG. 1, O is inserted from the middle of the guide hole 18 which communicates straight with the operation wire guide tube 19.
A bypass hole 25 branched and formed on the inner side (rear side) of the ring 22 opens to the distal end portion main body 2 toward the front.
【００２３】そして、そのバイパス孔２５の開口部２６
を塞ぐ密栓２７が、図１及び図４に示されるように、先
端キャップ８に一体成形されていて、開口部２６に常時
押し付けられている。したがって、その開口部２６から
バイパス孔２５内部には汚液等は侵入しない。The opening 26 of the bypass hole 25
As shown in FIGS. 1 and 4, a hermetic plug 27 is formed integrally with the tip cap 8 and is constantly pressed against the opening 26. Therefore, no waste liquid or the like enters the inside of the bypass hole 25 from the opening 26.
【００２４】ただし、密栓２７は先端キャップ８に一体
成形されているので、先端キャップ８を先端部本体２か
ら前方へずらして取り外せば、密栓２７もそれと共にバ
イパス孔２５の開口部２６から離れて、バイパス孔２５
が外部に対して開口する。However, since the stopper 27 is formed integrally with the tip cap 8, if the tip cap 8 is displaced forward from the tip main body 2, the stopper 27 also moves away from the opening 26 of the bypass hole 25 together therewith. , Bypass hole 25
Opens to the outside.
【００２５】操作ワイヤ１７は操作部側から進退操作さ
れるが、操作部には、図１に略示されるように、操作ワ
イヤ案内管１９の基端側に連通する注液口２９が接続さ
れていて、その口元には、中央にスリットが入ったゴム
製の注入栓３０が取り付けられている。The operation wire 17 is operated to advance and retreat from the operation part side. As shown in FIG. 1, the operation part is connected with a liquid inlet 29 communicating with the base end of the operation wire guide tube 19. A rubber injection plug 30 having a slit in the center is attached to the mouth.
【００２６】したがって、注入栓３０を取り外し、又は
注入栓３０のスリットを押し拡げて、注液口２９から操
作ワイヤ案内管１９内に洗浄液を注入すれば、その液は
操作ワイヤ１７と操作ワイヤ案内管１９との間の隙間を
流れて、先端の密栓２７が外されたバイパス孔２５から
外方に排出される。Therefore, if the injection plug 30 is removed or the slit of the injection plug 30 is pushed and expanded, and the cleaning liquid is injected into the operation wire guide tube 19 from the liquid injection port 29, the liquid is supplied to the operation wire 17 and the operation wire guide. The gas flows through the gap between the pipe 19 and is discharged outward from the bypass hole 25 from which the hermetic plug 27 is removed.
【００２７】[0027]
【発明の効果】本発明の内視鏡の鉗子起上装置によれ
ば、鉗子起上操作ワイヤ案内管の開口部にパッキンを設
けて操作ワイヤと案内管との間の隙間をシールしたの
で、その隙間の汚液等がほとんど侵入せず、しかも、案
内管に連通するバイパス孔とその開口を塞ぐための栓体
とを設けたので、操作ワイヤと案内管との間の隙間を洗
浄する必要がある場合には、注液口から案内管内に液体
を注入することによって、隙間を洗浄した液体がバイパ
ス孔から排出され、容易かつ確実に隙間を洗浄すること
ができる。According to the forceps raising device for an endoscope of the present invention, packing is provided at the opening of the forceps raising operation wire guide tube to seal the gap between the operation wire and the guide tube. It is necessary to clean the gap between the operation wire and the guide pipe because the gap between the operation wire and the guide pipe is provided because almost no waste liquid etc. in the gap penetrates, and a bypass hole communicating with the guide pipe and a plug for closing the opening are provided. In such a case, by injecting the liquid into the guide tube from the liquid inlet, the liquid whose gap has been washed is discharged from the bypass hole, and the gap can be easily and reliably washed.
【００２８】そして、バイパス孔の開口を塞ぐための栓
体を先端部本体の先端キャップに設ければ、部品コスト
がかからず、バイパス孔の開閉操作が容易で、しかも栓
体を紛失するおそれも無い等の優れた効果を有する。If a plug for closing the opening of the bypass hole is provided on the distal end cap of the distal end body, the cost of parts is not increased, the opening and closing operation of the bypass hole is easy, and the plug may be lost. It has an excellent effect, such as no presence.
【図１】実施例の内視鏡挿入部先端の平面断面略示図で
ある。FIG. 1 is a schematic plan cross-sectional view of a distal end of an endoscope insertion portion of an embodiment.
【図２】実施例の内視鏡挿入部先端の側面断面略示図で
ある。FIG. 2 is a schematic side cross-sectional view of the distal end of the endoscope insertion portion of the embodiment.
【図３】実施例の内視鏡挿入部先端の正面断面略示図で
ある。FIG. 3 is a schematic front cross-sectional view of the distal end of the endoscope insertion section of the embodiment.
【図４】実施例の先端キャップの斜視図である。FIG. 4 is a perspective view of a tip cap of the embodiment.
２ 先端部本体 ８ 先端キャップ １２ 鉗子起上台 １７ 操作ワイヤ １９ 操作ワイヤ案内管 ２２ Ｏリング ２５ バイパス孔 ２７ 密栓 ２９ 注液口 2 Tip body 8 Tip cap 12 Forceps raising stand 17 Operation wire 19 Operation wire guide tube 22 O-ring 25 Bypass hole 27 Seal plug 29 Liquid inlet
Claims (1)
口部にパッキンを設けて上記鉗子起上操作ワイヤと上記
案内管との間の隙間をシールした内視鏡の鉗子起上装置
であって、 上記案内管の基端部側から上記案内管内に 液体を注入す
るための注液口を設けると共に、上記案内管に上記パッ
キンより内側において連通して外面に開口するバイパス
孔と、上記バイパス孔の開口を塞ぐための着脱自在な栓
体とを設けたものにおいて、 上記栓体が、上記鉗子起上装置が配置された内視鏡の先
端部本体を囲むように電気絶縁材によって形成されて上
記先端部本体に対して着脱自在に設けられた先端キャッ
プに形成されている ことを特徴とする内視鏡の鉗子起上
装置。1. A forceps sealed endoscope the gap between the packing in the opening of the guide tube for guiding the forceps raiser operation wire is provided above forceps raising operation wire and the <br/> guide tube Lifting device
A liquid injection port for injecting a liquid into the guide tube from the proximal end side of the guide tube is provided, and a bypass hole communicating with the guide tube inside the packing and opening to the outer surface is provided, in one provided a removable plug member for closing the opening of the bypass hole, the plug body is, ahead of the endoscope the forceps raising unit is arranged
Formed by electrical insulation to surround the end body
The tip cap, which is detachably attached to the tip
A forceps raising device for an endoscope, wherein the device is formed on a clamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10633293A JP3276200B2 (en) | 1993-05-07 | 1993-05-07 | Endoscope forceps raising device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10633293A JP3276200B2 (en) | 1993-05-07 | 1993-05-07 | Endoscope forceps raising device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06315457A JPH06315457A (en) | 1994-11-15 |
| JP3276200B2 true JP3276200B2 (en) | 2002-04-22 |
Family
ID=14430934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10633293A Expired - Fee Related JP3276200B2 (en) | 1993-05-07 | 1993-05-07 | Endoscope forceps raising device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3276200B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3184019A4 (en) * | 2014-08-19 | 2018-04-25 | Olympus Corporation | Transmission mechanism, raising device, and insertion equipment |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3272268A1 (en) * | 2015-06-30 | 2018-01-24 | Olympus Corporation | Insertion apparatus and endoscope equipped with insertion apparatus |
| DE102015113020B4 (en) * | 2015-08-07 | 2023-10-05 | Digital Endoscopy Gmbh | Endoscope head |
| JP6514087B2 (en) * | 2015-10-23 | 2019-05-15 | 富士フイルム株式会社 | Endoscope |
| JP2018047030A (en) | 2016-09-21 | 2018-03-29 | 富士フイルム株式会社 | Endoscope |
| CN109715035B (en) * | 2016-10-14 | 2022-10-04 | Hoya株式会社 | Endoscope cap, endoscope, and method for detaching endoscope cap |
| JP6611962B2 (en) * | 2016-12-22 | 2019-11-27 | オリンパス株式会社 | Endoscope |
| JP2020108415A (en) | 2017-03-30 | 2020-07-16 | オリンパス株式会社 | Tip cover for endoscope and endoscope |
| JP6854963B2 (en) | 2018-02-15 | 2021-04-07 | オリンパス株式会社 | Endoscope |
-
1993
- 1993-05-07 JP JP10633293A patent/JP3276200B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3184019A4 (en) * | 2014-08-19 | 2018-04-25 | Olympus Corporation | Transmission mechanism, raising device, and insertion equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06315457A (en) | 1994-11-15 |
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