JPH0753148B2 - Endoscope device - Google Patents
Endoscope deviceInfo
- Publication number
- JPH0753148B2 JPH0753148B2 JP61122572A JP12257286A JPH0753148B2 JP H0753148 B2 JPH0753148 B2 JP H0753148B2 JP 61122572 A JP61122572 A JP 61122572A JP 12257286 A JP12257286 A JP 12257286A JP H0753148 B2 JPH0753148 B2 JP H0753148B2
- Authority
- JP
- Japan
- Prior art keywords
- water supply
- air supply
- endoscope
- spray water
- air
- 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
Landscapes
- Instruments For Viewing The Inside Of Hollow Bodies (AREA)
- Endoscopes (AREA)
Description
【発明の詳細な説明】 ［産業上の利用分野］ この発明は、内視鏡の操作部に設けられた噴霧送水スイ
ッチの操作によって噴霧送水手段を作動させ、挿入部の
先端部に設けられたノズルから噴霧送水できる内視鏡装
置に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention is provided at the distal end of an insertion section by actuating a spray water supply means by operating a spray water supply switch provided at an operation section of an endoscope. The present invention relates to an endoscope device that can spray water from a nozzle.
［従来の技術］ 一般に、内視鏡本体には送気、送水および吸引のための
流体管路が設けられている。そして、送気管路および送
水管路は内視鏡の挿入部の先端側で合流し、先端部に設
けられた観察窓に向かって開口するノズルに連通してお
り、観察窓が体腔内の粘液や汚物によって汚れた場合に
前記ノズルから観察窓に向かって噴霧送水することによ
り、汚れを除去することができるように構成されてい
る。[Prior Art] Generally, the endoscope main body is provided with a fluid conduit for air supply, water supply, and suction. Then, the air supply pipe and the water supply pipe merge at the distal end side of the insertion portion of the endoscope and communicate with a nozzle that opens toward the observation window provided at the distal end, and the observation window is a mucus in the body cavity. When it is contaminated with dirt or dirt, the dirt can be removed by spraying water from the nozzle toward the observation window.
したがって、内視鏡装置にあっては、前記送気、送水お
よび吸引の切換え制御を行なう制御手段が設けられてい
る。この制御手段には、従来、内視鏡の操作部に設けた
切換弁を直接的に手指の操作によって行なう機械的制御
と、たとえば特開昭56−75131号公報に示すように内視
鏡の操作部にスイッチを設け、このスイッチを手指によ
って操作することにより、光電源装置内の各管路に設け
た電磁弁を制御する電気的制御とがある。この電気的制
御方式は、内視鏡の操作部にスイッチを設けるだけであ
り、機械的制御方式のように操作部に送気弁、送水弁お
よび吸引弁等を設ける必要がなく、操作部が軽量となり
内視鏡の操作性に優れているという理由から普及してい
る。Therefore, the endoscope apparatus is provided with control means for controlling the switching between the air supply, the water supply, and the suction. This control means is conventionally a mechanical control in which a switching valve provided in the operation portion of the endoscope is directly operated by the operation of fingers, and, for example, as shown in JP-A-56-75131, There is electrical control in which a switch is provided in the operation unit, and the solenoid valve provided in each conduit in the optical power supply device is controlled by operating this switch with fingers. This electrical control system only provides a switch on the operation section of the endoscope, and does not require an air supply valve, a water supply valve, a suction valve, etc. on the operation section unlike the mechanical control method, and the operation section does not need to be installed. It is popular because of its light weight and excellent operability of endoscopes.
［発明が解決しようとする問題点］ 前述のように構成された内視鏡装置において、その送
気、送水および吸引を電気的に制御する方式のものは、
第５図に示すように、送気ポンプａと連通する送気管路
ｂに電磁弁ｃが設けられ、この送気管路ｂが内視鏡の挿
入部ｄの先端側で送水管路ｆに合流し、この合流部ｇか
ら気水混合管路ｈを介してノズルｉに連通している。[Problems to be Solved by the Invention] In the endoscope apparatus configured as described above, a system of electrically controlling air supply, water supply, and suction is
As shown in FIG. 5, an electromagnetic valve c is provided in the air supply conduit b communicating with the air supply pump a, and this air supply conduit b joins the water supply conduit f at the distal end side of the insertion portion d of the endoscope. Then, the merging portion g communicates with the nozzle i through the steam-water mixing conduit h.
したがって、電磁弁ｃによって噴霧送水停止後、送気管
路ｆ内の圧縮空気の流れによって前記気水混合管路ｈ内
への水の引き出しがある。機械的制御方式のものは、第
６図に示すように、内視鏡の操作部ｊに送気・噴霧送水
切換弁ｋが設けられているため、送気・送水切換弁ｋに
よって噴霧送水停止後の送気管路ｂ内の圧縮空気は大部
分が前記送気・噴霧送水切換弁ｋから大気へリークでき
るので、ノズルｉから放出される空気量は極めて少な
い。この結果、送水管路ｂ内からの水の引き出し量は無
視できるほど少ない。しかし、前記電気的制御方式の場
合は、送気管路ｂ内の圧縮空気はノズルｉからしか逃げ
られないのでノズルｉ方向への空気の流れによって気水
混合管路ｈ内が負圧になり、送水管路ｆ内から水が引き
出される。この気水混合管路ｈ内へ出た水が水切りため
の送気によってレンズ面へ流れ出して水切れ性を悪くし
ている。Therefore, after the spray water supply is stopped by the electromagnetic valve c, water is drawn into the air / water mixing conduit h by the flow of the compressed air in the air supplying conduit f. In the mechanical control system, as shown in FIG. 6, since the operation part j of the endoscope is provided with the air supply / spray water supply switching valve k, the air supply / water supply switching valve k stops the spray water supply. Most of the compressed air in the subsequent air supply conduit b can leak from the air supply / spray water supply switching valve k to the atmosphere, so the amount of air discharged from the nozzle i is extremely small. As a result, the amount of water drawn from the water supply conduit b is so small that it can be ignored. However, in the case of the electric control method, the compressed air in the air supply conduit b can escape only from the nozzle i, so that the air flow in the nozzle i direction causes a negative pressure in the water / water mixing conduit h, Water is drawn out from the water supply conduit f. The water discharged into the air / water mixing conduit h flows out to the lens surface by the air supply for draining water, which deteriorates the water drainage property.
この発明は、前記事情に着目してなされたもので、操作
部に設けた噴霧送水スイッチによって噴霧送水手段を制
御する電気的制御方式であっても、送水停止後における
水切れ性の悪さを解消することができる内視鏡装置を提
供することを目的とする。The present invention has been made in view of the above circumstances, and eliminates the poor drainability after water supply is stopped even with an electric control system in which the spray water supply means is controlled by a spray water supply switch provided in the operation unit. An object of the present invention is to provide an endoscopic device that can be used.
［問題点を解決するための手段及び作用］ この発明は、内視鏡の操作部に設けた噴霧送水スイッチ
の閉成信号によって電磁弁が作動することによって噴霧
送水手段を作動させ、送水管路に水を供給してノズルか
ら観察窓に向かって噴霧送水するものにおいて、前記噴
霧送水手段による噴霧送水停止直後、前記送気管路内を
一定時間、大気と連通させ、送気管路内の圧縮空気をリ
ークさせるようにしたことにある。[Means and Actions for Solving Problems] The present invention operates a spray water supply means by operating a solenoid valve in response to a closing signal of a spray water supply switch provided in an operation section of an endoscope, thereby providing a water supply conduit. In which water is supplied by spraying from the nozzle toward the observation window, immediately after the stop of spray water supply by the spray water supply means, the inside of the air supply pipe is communicated with the atmosphere for a certain period of time, and the compressed air in the air supply pipe is Is to leak.
［実施例］ 以下、この発明の実施例を図面に基づいて説明する。[Embodiment] An embodiment of the present invention will be described below with reference to the drawings.
第１図および第２図は第１の実施例を示すもので、１は
内視鏡、２は光電源装置などの電気的制御装置である。
内視鏡１は操作部３、挿入部４およびユニバーサルコー
ド５とから構成されている。そして、挿入部４には観察
用光学繊維束６および照明用光学繊維束７が内装され、
観察用光学繊維束６は挿入部４の先端部８に設けた観察
窓6aに、照明用光学繊維束７は照明窓7aにそれぞれ対向
している。さらに、前記先端部８には観察窓6aに向かっ
て開口するノズル９が設けられているとともに、吸引口
10が設けられている。また、前記挿入部４には送気管路
11と送水管路12および吸引管路13が内装されていて、送
気管路11と送水管路12は挿入部４の先端側で合流し、気
水混合管路11aを介して前記ノズル９に連通している。
また、吸引管路13は前記吸引口10に連通している。そし
て、これら送気管路11、送水管路12および吸引管路13は
前記ユニバーサルコード５の内部を介してコネクタ14に
接続され、このコネクタ14を介して前記制御装置２と連
通している。さらに、内視鏡１の操作部３には送気スイ
ッチ15、噴霧送水スイッチ16および吸引スイッチ17が設
けられている。1 and 2 show a first embodiment, in which 1 is an endoscope and 2 is an electric control device such as an optical power supply device.
The endoscope 1 includes an operation unit 3, an insertion unit 4, and a universal cord 5. The optical fiber bundle 6 for observation and the optical fiber bundle 7 for illumination are installed in the insertion portion 4,
The observing optical fiber bundle 6 faces the observing window 6a provided at the tip portion 8 of the insertion portion 4, and the illuminating optical fiber bundle 7 faces the illuminating window 7a. Further, the tip 8 is provided with a nozzle 9 opening toward the observation window 6a and a suction port.
Ten are provided. Further, an air supply line is provided in the insertion portion 4.
11 and the water supply pipe line 12 and the suction pipe line 13 are incorporated, and the air supply pipe line 11 and the water supply pipe line 12 merge at the tip end side of the insertion part 4 and reach the nozzle 9 through the air / water mixing pipe line 11a. It is in communication.
The suction pipe line 13 communicates with the suction port 10. The air supply conduit 11, the water supply conduit 12, and the suction conduit 13 are connected to the connector 14 via the inside of the universal cord 5 and communicate with the control device 2 via the connector 14. Further, the operation section 3 of the endoscope 1 is provided with an air supply switch 15, a spray water supply switch 16 and a suction switch 17.
制御装置２の装置本体18内には送気手段19を構成する送
気ポンプ20が設けられ、これは前記送気管路11と連通し
ているとともに、この送気管路11の途中には大気連通手
段21を構成する３方向電磁弁からなる大気連通弁22と２
方向電磁弁からなる第１の開閉弁23が設けられている。
そして、前記大気連通弁22は非通電時に送気管路11と大
気とが連通（矢印Ａ）し、通電時に送気管路11と送気ポ
ンプ20とが連通（矢印Ｂ）するようになっている。ま
た、24は噴霧送水手段であり、これは送水ポンプ25と送
水タンク29およびこの送水タンク26に連通する前記送水
管路12の途中に設けた２方向電磁弁からなる第２の開閉
弁27とから構成されている。さらに、装置本体18の内部
には制御回路28が設けられ、前記内視鏡１の操作部３に
設けた送気スイッチ15、噴霧送水スイッチ16および吸引
スイッチ17からの開閉信号を入力し、前記送気手段19、
噴霧送水手段24を制御するようになっている。An air supply pump 20 constituting an air supply means 19 is provided in the device body 18 of the control device 2, and this air supply pump 20 communicates with the air supply pipeline 11, and at the middle of the air supply pipeline 11 communicates with the atmosphere. Atmosphere communication valves 22 and 2 composed of three-way solenoid valves constituting the means 21
A first opening / closing valve 23, which is a directional solenoid valve, is provided.
The atmosphere communication valve 22 is designed so that the air supply conduit 11 communicates with the atmosphere (arrow A) when not energized, and the air supply conduit 11 communicates with the air supply pump 20 (arrow B) when energized. . Further, 24 is a spray water supply means, which is a water supply pump 25, a water supply tank 29, and a second on-off valve 27 consisting of a two-way electromagnetic valve provided in the middle of the water supply pipeline 12 communicating with the water supply tank 26. It consists of Further, a control circuit 28 is provided inside the device body 18, and an open / close signal is input from the air supply switch 15, the spray water supply switch 16 and the suction switch 17 provided in the operation unit 3 of the endoscope 1, Air supply means 19,
The spray water supply means 24 is controlled.
つぎに、前述のように構成された内視鏡装置の作用を第
２図のタイミングチャートに基づいて説明する。Next, the operation of the endoscope apparatus configured as described above will be described based on the timing chart of FIG.
まず、送気スイッチ15を押すと、押している間だけ、制
御回路28を介して送気ポンプ20および第１の開閉弁23に
作動信号が入力されるとともに大気連通弁22が通電され
て矢印Ｂ方向に連通する。したがって、送気ポンプ20が
作動するとともに、第１の開閉弁23が開放する。したが
って、送気ポンプ20から送気された気体は送気管路11を
介してノズル９から送気が行われることになる。また、
噴霧送水スイッチ16を押すと、押している間だけ、制御
回路28を介して送水ポンプ25および第２の開閉弁27に作
動信号が入力され、送水ポンプ25は作動するとともに、
第２の開閉弁27は開放される。したがって、送水タンク
26内の水は送水管路12を介して送水され、送気管路11内
の空気と合流し気水混合管路11a内で噴霧となってノズ
ル９から噴霧送水できる。First, when the air supply switch 15 is pressed, an operation signal is input to the air supply pump 20 and the first opening / closing valve 23 via the control circuit 28 and the atmosphere communication valve 22 is energized only while the switch is pressed, and the arrow B Communicate in the direction. Therefore, the air supply pump 20 operates and the first opening / closing valve 23 opens. Therefore, the gas supplied from the air supply pump 20 is supplied from the nozzle 9 via the air supply conduit 11. Also,
When the spray water supply switch 16 is pressed, an operation signal is input to the water supply pump 25 and the second on-off valve 27 via the control circuit 28 only while the spray water supply switch 16 is pressed, and the water supply pump 25 operates and
The second opening / closing valve 27 is opened. Therefore, the water tank
The water in 26 is supplied through the water supply conduit 12, merges with the air in the air supply conduit 11 and becomes a spray in the water / water mixing conduit 11a, which can be sprayed and supplied from the nozzle 9.
つぎに、噴霧送水スイッチ16から離すと、制御回路28か
らの信号により送気ポンプ20と噴霧送水ポンプ25が停止
し、第２の開閉弁27が閉塞されるとともに大気連通弁22
が矢印Ａ方向に連通する。その後、第１の開閉弁23が遅
延して閉塞する。したがって、ノズル９からの噴霧送水
は停止し、送水管路12の途中の水はその状態で静止する
ことになる。このとき、つまり噴霧送水手段22に噴霧送
水停止信号が入力されて噴霧送水停止直後に、制御回路
28からの作動信号によって大気連通弁22が一定時間、大
気と連通するために、送気管路11内の圧縮空気は大気連
通弁22を介して大気へリークし、圧縮空気のノズル９方
向への流れによる気水混合管路11aへの水の引き出しを
防止できる。したがって、ノズル９からの滴下を未然に
防止でき、水切れ性を向上することができる。Next, when the spray water supply switch 16 is released, the air supply pump 20 and the spray water supply pump 25 are stopped by the signal from the control circuit 28, the second opening / closing valve 27 is closed, and the atmosphere communication valve 22.
Communicate in the direction of arrow A. After that, the first on-off valve 23 is delayed and closed. Therefore, the spray water supply from the nozzle 9 is stopped, and the water in the middle of the water supply pipeline 12 is stopped in that state. At this time, that is, immediately after the spray water supply stop signal is input to the spray water supply means 22 and the spray water supply is stopped, the control circuit
Since the atmosphere communication valve 22 communicates with the atmosphere for a certain time by the operation signal from 28, the compressed air in the air supply conduit 11 leaks to the atmosphere via the atmosphere communication valve 22, and the compressed air flows toward the nozzle 9 direction. It is possible to prevent water from being drawn into the steam-water mixing pipe 11a due to the flow. Therefore, it is possible to prevent dripping from the nozzle 9 in advance and improve the water drainage property.
第３図および第４図は第２の実施例を示すもので、第１
の実施例と同一構成部分は同一番号を付して説明を省略
する。この実施例は、第１の開閉弁23より下流側の送気
管路11の途中に大気と連通する分岐管29を設け、この分
岐管29に２方向電磁弁からなる大気連通弁30を設けたも
のである。FIG. 3 and FIG. 4 show the second embodiment.
The same components as those in the above embodiment are denoted by the same reference numerals and the description thereof will be omitted. In this embodiment, a branch pipe 29 that communicates with the atmosphere is provided in the middle of the air supply pipe line 11 on the downstream side of the first opening / closing valve 23, and the atmosphere communication valve 30 that is a two-way solenoid valve is provided in the branch pipe 29. It is a thing.
そして、第1,第２の開閉弁23,27を閉塞して噴霧送水を
停止させた直後に大気連通弁30を一定時間、大気連通し
て送気管路11内の圧縮空気をリークさせるようにしたも
のである。Then, immediately after the spray water supply is stopped by closing the first and second opening / closing valves 23, 27, the atmosphere communication valve 30 is communicated with the atmosphere for a certain time so that the compressed air in the air supply conduit 11 is leaked. It was done.
［発明の効果］ 以上説明したように、この発明によれば、ノズルから観
察窓に向って噴霧送水する手段を有する内視鏡装置にお
いて、噴霧送水手段による噴霧送水停止直後、送気管路
内を一定時間、大気に連通する大気連通手段を設けるこ
とによって、送気管路内の圧縮空気をリークさせること
ができ、ノズル方向への水の引き出しを防止することが
でき、水切れ性の悪さを解消することができるという効
果を奏する。[Effects of the Invention] As described above, according to the present invention, in the endoscope apparatus having the means for spraying water from the nozzle toward the observation window, the inside of the air supply conduit is immediately after the stop of spray water supply by the spray water supply means. By providing an atmosphere communication means that communicates with the atmosphere for a certain period of time, compressed air in the air supply conduit can be leaked, water can be prevented from being drawn toward the nozzle, and poor drainage can be eliminated. There is an effect that can be.
第１図はこの発明の第１の実施例を示す内視鏡装置の概
略的構成図、第２図は同じくタイミングチャート図、第
３図はこの発明の第２の実施例を示す内視鏡装置の概略
的構成図、第４図は同じくタイミングチャート図、第５
図は従来の電気的制御方式の内視鏡装置を示し、（Ａ）
は噴霧送水時、（Ｂ）は送水停止直後の説明図、第６図
は従来の機械的制御方式の内視鏡装置を示し、（Ａ）は
噴霧送水時、（Ｂ）は送水直後の説明図である。 １……内視鏡、２……制御装置、３……操作部、6a……
観察窓、９……ノズル、11……送気管路、12……送水管
路、16……噴霧送水スイッチ、24……噴霧送水手段、21
……大気連通手段。FIG. 1 is a schematic configuration diagram of an endoscope apparatus showing a first embodiment of the present invention, FIG. 2 is a timing chart diagram thereof, and FIG. 3 is an endoscope showing a second embodiment of the present invention. FIG. 4 is a schematic configuration diagram of the apparatus, FIG.
The figure shows a conventional electric control type endoscope apparatus, (A)
Is an explanatory view immediately after water supply is stopped, (B) is an explanatory view immediately after water supply is stopped, FIG. 6 shows an endoscope apparatus of a conventional mechanical control system, (A) is during spray water supply, and (B) is an explanation immediately after water supply. It is a figure. 1 ... Endoscope, 2 ... Control device, 3 ... Operating section, 6a ...
Observation window, 9 ... Nozzle, 11 ... Air supply line, 12 ... Water supply line, 16 ... Spray water supply switch, 24 ... Spray water supply means, 21
…… A means of communicating with the atmosphere.
Claims (1)
設けられ観察窓に向かって開口するノズルと、前記内視
鏡に設けられ前記挿入部に先端側で合流し前記ノズルに
連通する送気管路および送水管路と、内視鏡の操作部に
設けられた噴霧送水スイッチと、この噴霧送水スイッチ
の閉成信号によって電磁弁を作動し前記送気管路および
送水管路にそれぞれ空気と水を同時に供給し前記ノズル
から観察窓に向かって噴霧送水する噴霧送水手段を有し
た電気的制御装置とからなる内視鏡装置において、前記
噴霧送水手段による噴霧送水停止後、前記送気管路内を
一定時間、大気と連通する大気連通手段を設けたことを
特徴とする内視鏡装置。Claim: What is claimed is: 1. An endoscope, a nozzle provided at the tip of an insertion portion of the endoscope and opening toward an observation window, and a nozzle provided at the endoscope that joins the insertion portion on the tip side. An air supply pipe and a water supply pipe communicating with the nozzle, a spray water supply switch provided in the operation section of the endoscope, and an electromagnetic valve operated by a closing signal of the spray water supply switch to operate the air supply pipe and the water supply pipe. In the endoscopic device consisting of an electric control device having a spray water supply means for simultaneously supplying air and water respectively to the observation window from the nozzle, and after stopping spray water supply by the spray water supply means, An endoscopic device comprising an atmosphere communication means for communicating with the atmosphere for a certain period of time in the air supply conduit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61122572A JPH0753148B2 (en) | 1986-05-28 | 1986-05-28 | Endoscope device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61122572A JPH0753148B2 (en) | 1986-05-28 | 1986-05-28 | Endoscope device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62277931A JPS62277931A (en) | 1987-12-02 |
| JPH0753148B2 true JPH0753148B2 (en) | 1995-06-07 |
Family
ID=14839222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61122572A Expired - Fee Related JPH0753148B2 (en) | 1986-05-28 | 1986-05-28 | Endoscope device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0753148B2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2520278Y2 (en) * | 1989-10-19 | 1996-12-11 | オリンパス光学工業株式会社 | Air / water supply device for endoscope |
| JPH0675572B2 (en) * | 1990-06-25 | 1994-09-28 | 富士写真光機株式会社 | Degassed water injection device |
| JP5404313B2 (en) * | 2009-10-28 | 2014-01-29 | Ｈｏｙａ株式会社 | Endoscope water supply system |
| JP5855488B2 (en) * | 2012-02-23 | 2016-02-09 | オリンパス株式会社 | Endoscope |
| JP2021083636A (en) * | 2019-11-27 | 2021-06-03 | 株式会社Jimro | Endoscope system |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57150936A (en) * | 1981-03-16 | 1982-09-17 | Olympus Optical Co | Endoscope apparatus |
| JPS5969019A (en) * | 1982-10-15 | 1984-04-19 | オリンパス光学工業株式会社 | Washing apparatus for endoscope |
-
1986
- 1986-05-28 JP JP61122572A patent/JPH0753148B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62277931A (en) | 1987-12-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |