JPS5928939A - Water sending apparatus of endoscope - Google Patents
Water sending apparatus of endoscopeInfo
- Publication number
- JPS5928939A JPS5928939A JP57137045A JP13704582A JPS5928939A JP S5928939 A JPS5928939 A JP S5928939A JP 57137045 A JP57137045 A JP 57137045A JP 13704582 A JP13704582 A JP 13704582A JP S5928939 A JPS5928939 A JP S5928939A
- Authority
- JP
- Japan
- Prior art keywords
- water supply
- piston
- water
- endoscope
- cylinder
- 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.)
- Granted
Links
Landscapes
- Instruments For Viewing The Inside Of Hollow Bodies (AREA)
- Endoscopes (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
本発明は、体腔内被検部を洗滌可能な内視鏡の送水装置
に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a water supply device for an endoscope that is capable of washing a body cavity to be examined.
内視鏡によって胃、大腸等の消化器官内を観察する場合
には、内視鏡の送気装置によって該器官に送気し該器官
を膨張させて内視鏡の対物レンズと該器官内被横部との
間に観察に必要な距離を確保している。その為該対物レ
ンズの窓に該器官内の体液等が付着することは少ないが
、内視鏡の挿入時に、その先端部は、対物レンズ窓を含
めて、体腔内の粘膜面を擦るようにして挿入されていく
ので、該対物レンズ窓には上記体液等が付着し、観察の
妨げとなる。その為、付着した体液等を洗滌除去し、対
物レンズ窓の視界を確保する目的で、内視鏡には送水＠
置が設けられている。この送水装置は上記の目的の為に
設けられたものなので、そのノズルは対物レンズ窓に向
レプで取付けられている。従って、被検部が出面液で覆
われている或いは汚物等が付着している場合に、それら
の被検部上の障害物を送水装置によって除去することｔ
ま出来なかった。When observing the inside of a digestive organ such as the stomach or large intestine using an endoscope, the endoscope's air supply device blows air into the organ to inflate the organ and connect the objective lens of the endoscope with the internal coating of the organ. The necessary distance for observation is secured between the side part and the side part. Therefore, body fluids in the organ rarely adhere to the window of the objective lens, but when inserting the endoscope, the tip of the endoscope, including the window of the objective lens, should be rubbed against the mucosal surface inside the body cavity. As the object lens is inserted into the objective lens window, the body fluids and the like adhere to the objective lens window, thereby interfering with observation. For this reason, water is supplied to the endoscope in order to wash and remove adhering body fluids and ensure the visibility of the objective lens window.
A location is provided. Since this water supply device is provided for the above purpose, its nozzle is attached to the objective lens window in a facing direction. Therefore, if the test area is covered with liquid or has dirt, etc. attached, it is necessary to remove the obstacles on the test site using the water supply device.
Well, I couldn't.
本発明は、この問題を解決する為になされたものであり
、被検部洗滌用のノズルとチャンネルとを従来の送水装
置に併設し、各々の送水系統に送水作動部を設け、観察
を中断することなく各々の送水系統へ送水し、被検部を
洗滌することが可能な内視鏡の送水装置を提供するもの
である。The present invention has been made to solve this problem, and includes a nozzle and a channel for cleaning the test area attached to a conventional water supply device, and a water supply operating section is provided in each water supply system to interrupt observation. The purpose of the present invention is to provide a water supply device for an endoscope that can supply water to each water supply system and wash the examined part without washing the body.
以下、添付図面に示す望ましい実施例に従い、本発明を
詳述する。Hereinafter, the present invention will be described in detail according to preferred embodiments shown in the accompanying drawings.
第１図は本発明の一実施例を示す縦断側面図である。図
中、Ａは挿入管部、Ｂは操作部、Ｃは接眼部である。内
視鏡による体腔内観察時には、挿入管部への先端部１に
設けた対物レンズ窓２を透して被検部の像を対物レンズ
３が観察用光学繊維束４の端面に結像し、該像を挿入管
部へに収納した光学繊維束４が伝送し接眼部Ｃ１によっ
て拡大し観察する。先端部１は、その他に被検部である
体腔内器官内壁と対物レンズ３との間に観察に必要な空
間を確保する為に該器官を膨張させる空気を噴出し同時
に対物レンズ窓２に付着した汚物等を吹飛ばす為のノズ
ル５、対物レンズ窓２を洗滌する為の第一の送水ノズル
６、被検部を洗滌する為の第二の送水ノズル７等を備え
ている。各ノズル５．６．７には挿入管部Ａに収納した
送気チューブ８、第一の送水チューブ９、第二の送水チ
ューブ１０の一端を各々接続し、各チューブＢ、ｇ、ｉ
。FIG. 1 is a longitudinal sectional side view showing one embodiment of the present invention. In the figure, A is an insertion tube section, B is an operating section, and C is an eyepiece section. When observing the inside of a body cavity with an endoscope, an objective lens 3 forms an image of the subject through an objective lens window 2 provided at the distal end 1 of the insertion tube onto an end surface of an optical fiber bundle 4 for observation. The image is transmitted by the optical fiber bundle 4 housed in the insertion tube section, and is magnified and observed by the eyepiece section C1. In addition, the tip 1 blows out air to inflate the organ in order to secure a space necessary for observation between the inner wall of the body cavity organ to be examined and the objective lens 3, and at the same time adheres to the objective lens window 2. It is equipped with a nozzle 5 for blowing off dirt, etc., a first water nozzle 6 for washing the objective lens window 2, a second water nozzle 7 for washing the test area, and the like. One end of the air supply tube 8, first water supply tube 9, and second water supply tube 10 housed in the insertion pipe section A is connected to each nozzle 5.6.7, and each tube B, g, i
.
の細端は後述する送水作動部１１．１２に接続する。The narrow end is connected to a water supply operating section 11.12, which will be described later.
送水作動部１１．１２のシリンダには送気管１３と、送
水管１４から分岐した送水チューブ１５．１６とを接続
する。送気管１３及び送水管１４は、密閉式のタンク１
７に接続し、ポンプ１８によって、タンク１７内の空気
は送気管１３から、タンク１７内の水はポンプ１８によ
って加圧されたタンク内の空気によって送水管１４から
送り出される。An air supply pipe 13 and a water supply tube 15.16 branched from the water supply pipe 14 are connected to the cylinder of the water supply operation unit 11.12. The air pipe 13 and the water pipe 14 are connected to a closed tank 1.
7, the air in the tank 17 is sent out from the air pipe 13 by the pump 18, and the water in the tank 17 is sent out from the water pipe 14 by the air in the tank pressurized by the pump 18.
送水作動部１１．１２は一種のピストンバルブとなって
おり、第一の送水作動部１１のシリンダ１９には送気チ
ューブ８と第一の送水チューブ９と送水チューブ１５と
第二の送水作動部１２へ通じる連通チューブ２０とを接
続する。第一の送水作動部１１のピストン２１は、シリ
ンダ１９に嵌挿し、ばね２２によって操作部Ｂから外方
へ付勢する。ピストン２１には連通部として、その軸線
上に貫通孔２３を穿設し、またその外周上に巾広の周回
溝２４を穿設し、ピストン２１の位置変化によって送水
チューブ９と１５とを或いは送気チューブ５と連通チュ
ーブ２０と外部とを適宜連通させるピストン２１には、
ピストン２１とシリンダ１９との間の気密性を高める為
に適宜の位置にＯリングを嵌装している。The water supply operating section 11.12 is a kind of piston valve, and the cylinder 19 of the first water supply operation section 11 has an air supply tube 8, a first water supply tube 9, a water supply tube 15, and a second water supply operation section. 12 is connected to the communication tube 20 . The piston 21 of the first water supply operating section 11 is fitted into the cylinder 19 and urged outward from the operating section B by a spring 22. A through hole 23 is formed on the axis of the piston 21 as a communication part, and a wide circumferential groove 24 is formed on the outer periphery of the piston 21 so that the water supply tubes 9 and 15 can be connected to each other by changing the position of the piston 21. The piston 21 that connects the air supply tube 5, the communication tube 20, and the outside as appropriate includes:
In order to improve airtightness between the piston 21 and the cylinder 19, O-rings are fitted at appropriate positions.
３−
送水作動部１２も、送水作動部１１と略同様の構成であ
り、送気作動部１２のシリンダ２５には第二の送水チュ
ーブ１０と送水チューブ１６と送気管１３と連通チュー
ブ２０とを接続する。ピストン２６は、貫通孔がないこ
とを除けばピストン２１と同様であり周回溝２７を備え
、常時ばね２８によって外方へ付勢される。3- The water supply operating section 12 also has substantially the same configuration as the water supply operating section 11, and the cylinder 25 of the air supply operating section 12 includes the second water supply tube 10, the water supply tube 16, the air supply pipe 13, and the communication tube 20. Connecting. The piston 26 is similar to the piston 21 except that it does not have a through hole, has a circumferential groove 27, and is always urged outward by a spring 28.
また、送気チューブ８には、ノズル５からシリンダ１９
への逆流を防止する為の逆止弁２９を取付↓すている。In addition, the air supply tube 8 is connected to a cylinder 19 from the nozzle 5.
A check valve 29 is installed to prevent backflow.
上記構成を有する送水装置では、第１図に示すようにピ
ストン２１．２６の何れをも押込まない状態では、送水
チューブ１ｓ、 ｉ６がピストン２１．２６によって閉
塞、遮断されている為に、ポンプ１８から送られた空気
は送気管１３、シリンダ２５、連通チューブ２５、シリ
ンダ１９及び貫通孔２３を通って外部へと放出される。In the water supply device having the above configuration, when neither of the pistons 21.26 is pushed in as shown in FIG. The air sent from 18 passes through the air pipe 13, the cylinder 25, the communication tube 25, the cylinder 19, and the through hole 23, and is discharged to the outside.
この時、逆止弁２９の抵抗が小さければ、微量ではある
が送気ノズル５からも空気が流出することになる。その
為、逆止弁２９としである程麿の抵抗を有するものを用
いれば、送気ノズル４−
５からの不必要な空気の流出を防止することができる。At this time, if the resistance of the check valve 29 is small, a small amount of air will also flow out from the air supply nozzle 5. Therefore, by using a check valve 29 that has a relatively high resistance, it is possible to prevent unnecessary air from flowing out from the air supply nozzle 4-5.
この状態で貫通孔２３の外部開口を指で塞げば、シリン
ダ１９に流入した空気は、送気チューブ８及び逆止弁２
９を通って送気ノズル５から噴出する。In this state, if you close the external opening of the through hole 23 with your finger, the air flowing into the cylinder 19 will flow through the air tube 8 and the check valve 2.
9 and is ejected from the air supply nozzle 5.
第２図に示すように、指で貫通孔２３を塞いだままピス
トン２１をシリンダ１９内に押込んだ状態では、ピスト
ン２１によって送気チューブ８が塞がれ、周回溝２４に
よって送水チューブ１５と送水チューブ９とが連通ずる
ので、ポンプ１８によって加圧送水された水は、送水管
１４、送水チューブ１５、周回溝２４及び送水チューブ
９を通って送水ノズル６から対物レンズ窓２へ向けて噴
出する。As shown in FIG. 2, when the piston 21 is pushed into the cylinder 19 with the through hole 23 closed with a finger, the air supply tube 8 is closed by the piston 21, and the water supply tube 15 is connected to the water supply tube 15 by the circumferential groove 24. Since the water supply tube 9 is in communication with the water supply tube 9, the water supplied under pressure by the pump 18 passes through the water supply pipe 14, the water supply tube 15, the circumferential groove 24, and the water supply tube 9, and is ejected from the water supply nozzle 6 toward the objective lens window 2. do.
同様にして、第３図に示すようにピストン２６をシリン
ダ２５内へ押込んだ状態では、ピストン２６によって連
通チューブ２０が塞がれ、周回溝２７によって送水チュ
ーブ１６と送水チューブ１０とが連通し、水は送水管１
４、送水チューブ１６、周回溝２７、送水チューブ１０
を通って送水ノズル７から対物レンズ２の軸線に沿って
被検部へ噴出する。Similarly, when the piston 26 is pushed into the cylinder 25 as shown in FIG. , water is from water pipe 1
4, water supply tube 16, circumferential groove 27, water supply tube 10
The water is ejected from the water supply nozzle 7 along the axis of the objective lens 2 to the test area.
本実施例においては貫通孔２３をピストン２１に設けた
が、操作部Ｂを保持した状態で扱い易ければ、ピストン
２６に貫通孔を設けても本発明は実施可能である。In this embodiment, the through hole 23 is provided in the piston 21, but the present invention can be implemented even if the piston 26 is provided with a through hole as long as it is easy to handle while holding the operating portion B.
本発明の他の実施例を第４図に示す。前述した実施例と
本実施例との相違は、送水作動部１１においては、ピス
トン２１を二重にし、その内側のピストンに嵌合する凹
所をシリンダ１９に設けたことであり、送水作動部１２
においては、送水チューブ１６の伯に送水ノズル１０へ
の注入管をシリンダに接続したことである。Another embodiment of the invention is shown in FIG. The difference between the above-mentioned embodiment and this embodiment is that in the water supply operation section 11, the piston 21 is doubled, and a recess into which the inner piston fits is provided in the cylinder 19. 12
In this case, the injection pipe to the water supply nozzle 10 is connected to the cylinder at the bottom of the water supply tube 16.
送水作動部１１のピストンは、外側のピストン３０と内
側のピストン３１とからなり、外側の、ピストン３０は
前述した実施例のものと略同じであるが貫通孔２３に替
えてより大径の孔を穿ち、これを内側のビス１〜ン３１
のシリンダとしている。内側のピストン３１にはその軸
線上に貫通孔２３を穿ち、ばね３２によって操作部Ｂか
ら外方へ付勢している。また、ピストン３１の外部露出
部分に孔３３を穿ち外部と貫通孔２３とを連通ずる。シ
リンダ３４も前述の実施例のものと略同−であるが、シ
リンダ３４の底部（第４図上では上部）にピストン３１
を押込んだ際にピストン３１と嵌合する凹部３５を設け
である。この構成によれば、ピストン３１を押込まない
状態では、シリンダ３４に流入した空気は貫通孔２３を
通り孔３３から流出し、ピストン３１を押込んだ状態で
はピストン３１の先端部が凹部３５に嵌入し、貫通孔２
３への空気の流出を阻止するので空気は送気チューブ８
へと流出する。この為、内視鏡の操作中に誤まって貫通
孔２３の外部開口を指等で塞いでも、不必要な吸引が行
なわれる心配がなく、送気の操作の際にも、ピストン３
１を押込むものであるから、指で該開口を塞ぐ場合より
も操作を確実に行ない得る。The piston of the water supply actuator 11 consists of an outer piston 30 and an inner piston 31. The outer piston 30 is substantially the same as that of the above-mentioned embodiment, but the through hole 23 is replaced by a hole with a larger diameter. and insert this into the inner screws 1 to 31.
It is a cylinder. The inner piston 31 has a through hole 23 formed on its axis, and is biased outward from the operating portion B by a spring 32. Further, a hole 33 is bored in the externally exposed portion of the piston 31 to communicate the outside with the through hole 23. The cylinder 34 is also substantially the same as that of the previous embodiment, but a piston 31 is attached to the bottom of the cylinder 34 (the top in FIG. 4).
A recess 35 is provided which fits into the piston 31 when the piston 31 is pushed in. According to this configuration, when the piston 31 is not pushed in, the air that has flowed into the cylinder 34 passes through the through hole 23 and flows out from the hole 33, and when the piston 31 is pushed in, the tip of the piston 31 enters the recess 35. Fit and through hole 2
3, the air flows through the air supply tube 8.
flows out to. Therefore, even if you accidentally block the external opening of the through hole 23 with your finger while operating the endoscope, there is no need to worry about unnecessary suction being performed.
1, the operation can be performed more reliably than when the opening is closed with a finger.
ばね３３はばね２２よりも弱くしであるので、ピストン
３１を軽く押せば、ピストン３１のみが押込まれて送気
状態となり、そこから更に強く押込めば、ピストン３０
も押込まれて送水チューブ９への送水状態となる。The spring 33 is weaker than the spring 22, so if you push the piston 31 lightly, only the piston 31 will be pushed into the air supply state, and if you push it even harder, the piston 30 will be pushed in.
is also pushed in, and water is being supplied to the water supply tube 9.
送水作動部１２において前述した実施例と異なるのは、
先ず操作部Ｂの本体に注射器の先端部と接７−
続可能な注入開口３６を設け、注入開口３６とシリンダ
３７とを注入管３８によって連通し、注入管には注入開
口３６への逆流を防止する逆止弁３９を設けたことであ
る。ピストン４０は前述した実施例のピストン２６と略
同−であるが、ピストン４０を押込まない状態で、送水
チューブ１０と注入管３８とを連通させる周回溝４１を
設けた点が異なっている。この構成によって、ピストン
４０を押込まない状態で洗滌用の水を収納した注射器を
注入筒口に接続し、該注射器の操作によって被検部への
送水を行なうことがことが出来る。この方法は、洗滌の
際に特に強い圧力を必要とする場合或いは圧力を微妙に
変化させたい場合等に有効である。送水ノズル７からの
流出速度を大きくしたい時には、第５図に示すように先
端部の内径を細くしたノズルを用いてもよい。The water supply operation unit 12 is different from the embodiment described above in the following points.
First, an injection opening 36 that can be connected to the tip of a syringe is provided in the main body of the operating part B, and the injection opening 36 and the cylinder 37 are communicated through an injection pipe 38, and the injection pipe is provided with a backflow to the injection opening 36. This is because a check valve 39 is provided to prevent this. The piston 40 is substantially the same as the piston 26 of the above-described embodiment, except that a circumferential groove 41 is provided to allow the water supply tube 10 and the injection tube 38 to communicate with each other when the piston 40 is not pushed in. With this configuration, it is possible to connect a syringe containing water for washing to the injection cylinder port without pushing the piston 40, and to supply water to the area to be examined by operating the syringe. This method is effective when cleaning requires particularly strong pressure or when it is desired to change the pressure slightly. When it is desired to increase the outflow speed from the water supply nozzle 7, a nozzle with a narrower inner diameter at the tip as shown in FIG. 5 may be used.
本発明における連通部としては、既述した周回溝及び貫
通孔の他に、ピストンを横断する連通孔或いはピストン
外周の全周にではなく部分的に設ける連通溝等、ピスト
ンの位置に応じて各チュー９−
８−
ブを適宜連通させるものであれば、様々な変化例が採用
可能である。In addition to the circumferential groove and through hole described above, the communication portion in the present invention may include a communication hole that crosses the piston or a communication groove that is provided partially but not around the entire circumference of the piston, depending on the position of the piston. Various modifications can be adopted as long as the tubes are connected appropriately.
本発明に係る送水装置によれば、対物レンズ窓に向けた
送水ノズルの送水系統の他に、対物レンズの軸線に沿っ
て設けた即ち被検部への噴出が可能な送水ノズルの送水
系統を設け、各々の系統に送水作動部を設けたので、被
検部が出血液等で覆われても容易に該出血液などを洗滌
除去することが可能である。しかも夫々の送水系統が互
いに独立している為に、他の状態から何れかの送水状態
への操作をピストンを押込むだけの一動作で行なうこと
・も、被検部の洗滌と対物レンズ窓の洗滌とを同時に行
なうことも可能である。According to the water supply device according to the present invention, in addition to the water supply system of the water supply nozzle directed toward the objective lens window, there is also a water supply system of the water supply nozzle provided along the axis of the objective lens, that is, capable of ejecting water to the test area. Since a water supply operating section is provided in each system, even if the test area is covered with bleeding blood, etc., it is possible to easily wash and remove the bleeding blood. Moreover, since each water supply system is independent of each other, it is possible to switch from any other state to any water supply state with a single action of pushing the piston. It is also possible to perform the cleaning at the same time.
また、内視鏡の操作部を保持したままの状態で、簡単に
送水作動部を操作出来るので、送水の為に観察を中断す
る必要もなく、洗滌中も被検部を観察することが出来る
。In addition, the water supply operation unit can be easily operated while holding the operation unit of the endoscope, so there is no need to interrupt observation to supply water, and the test area can be observed even during cleaning. .
加えて、二つの送水作動部は、その構成に共通する部分
が多く、部品等を共通化しその種類を減少させることが
可能であり、本発明に係る送水装−１ｎ −
置は生産性の面でも優れている。In addition, the two water supply actuators have many parts in common in their configurations, and it is possible to share parts and reduce the number of types, and the water supply system according to the present invention is highly efficient in terms of productivity. But it's excellent.
第１図は本発明の一実施例を示す縦断側面図、第２図は
同実施例の送水状態の送水作動部１１を示す縦断側面図
、第３図は同実施例の送水状態の送水作動部１２を示す
縦断側面図、第４図は本発明の伯の実施例を示す縦断側
面図、第５図は送水ノズルの変更例を示す縦断側面図で
ある。
１・・・先端部 ６．７・・・送水ノズル９ ．１０
，１５，１Ｑ・・・送水チューブ １１．１２・・・
送水作動部 １４・・・送水管 １９，２５，３４
．３７・・・シリンダ２１．２６，３０，３１．４０・
・・ピストン ２３・・・貫通孔２４．２７．４１・
・・周回溝 ３３・・・孔特許出願人 旭光学工
業株式会社
１１−FIG. 1 is a longitudinal side view showing an embodiment of the present invention, FIG. 2 is a longitudinal side view showing the water supply operation unit 11 in the water supply state of the same embodiment, and FIG. 3 is a water supply operation in the water supply state of the same embodiment. FIG. 4 is a longitudinal side view showing a further embodiment of the present invention, and FIG. 5 is a longitudinal side view showing a modified example of the water supply nozzle. 1...Tip 6.7...Water supply nozzle 9. 10
,15,1Q... Water supply tube 11.12...
Water supply operation part 14... Water pipe 19, 25, 34
．． 37...Cylinder 21.26, 30, 31.40.
...Piston 23...Through hole 24.27.41.
... Circumferential groove 33 ... Hole Patent applicant Asahi Optical Co., Ltd. 11-
Claims (1)
送水ノズルと内視鏡に洗滌用の水を供給する送水管とを
２系統の送水チューブによって接続し、 シリンダに接続する上記送水チューブの連通、遮断をピ
ストンの位置変化によって行なうべく連通部を設けたピ
ストンと、シリンダとから成る送水作動部を、該送水チ
ューブの各系統に各々設けたことを特徴とする内視鏡の
送水装置。[Scope of Claims] Two water supply nozzles are attached to the distal end of the endoscope, and the two water supply nozzles and a water supply pipe that supplies washing water to the endoscope are connected by two systems of water supply tubes. , characterized in that each system of the water supply tubes is provided with a water supply operation unit consisting of a piston provided with a communication portion and a cylinder so as to communicate and cut off the water supply tube connected to the cylinder by changing the position of the piston. A water supply device for an endoscope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57137045A JPS5928939A (en) | 1982-08-05 | 1982-08-05 | Water sending apparatus of endoscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57137045A JPS5928939A (en) | 1982-08-05 | 1982-08-05 | Water sending apparatus of endoscope |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5928939A true JPS5928939A (en) | 1984-02-15 |
| JPS6355927B2 JPS6355927B2 (en) | 1988-11-04 |
Family
ID=15189575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57137045A Granted JPS5928939A (en) | 1982-08-05 | 1982-08-05 | Water sending apparatus of endoscope |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5928939A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62275440A (en) * | 1986-05-21 | 1987-11-30 | オリンパス光学工業株式会社 | Ultrasonic endoscope |
| JP2010017559A (en) * | 2008-07-14 | 2010-01-28 | Ethicon Endo Surgery Inc | Method and device for maintaining visibility and providing irrigation and/or suction during surgical treatment |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5789840A (en) * | 1980-11-25 | 1982-06-04 | Olympus Optical Co | Water sending apparatus for endoscope |
-
1982
- 1982-08-05 JP JP57137045A patent/JPS5928939A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5789840A (en) * | 1980-11-25 | 1982-06-04 | Olympus Optical Co | Water sending apparatus for endoscope |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62275440A (en) * | 1986-05-21 | 1987-11-30 | オリンパス光学工業株式会社 | Ultrasonic endoscope |
| JP2010017559A (en) * | 2008-07-14 | 2010-01-28 | Ethicon Endo Surgery Inc | Method and device for maintaining visibility and providing irrigation and/or suction during surgical treatment |
| US8915842B2 (en) | 2008-07-14 | 2014-12-23 | Ethicon Endo-Surgery, Inc. | Methods and devices for maintaining visibility and providing irrigation and/or suction during surgical procedures |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6355927B2 (en) | 1988-11-04 |
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