【発明の詳細な説明】［産業上の利用分野］本発明は、内視鏡検査中に常時ノズルがら送気する一方
、送気量と同量の吸引を行う環流送気吸引装置を備えた
内視鏡装置に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention includes a recirculation air supply and suction device that constantly supplies air through a nozzle during endoscopy and also suctions the same amount as the amount of air supplied. It relates to an endoscope device.
［従来の技術］内視鏡には、体腔内に対する送気、送水及び吸引を行う
管路系が組込まれており、体腔内を検査、処置する場合
には該体腔内を一定量膨張させるため送気が行なわれ、
また、体腔内や観察窓を洗浄するため送水、送気、吸引
が行なわれている。さらに、近年の内視鏡は、例えば特
開昭６１−７３６３４号公報、特開昭６１−１４１３４
０号公報に見られるように、前記管路系の水きれの向上
とノズルの詰まり防止とを行う環流送気吸引装置を備え
ている。この環流送気吸引を行うには、安全性確保の為
、送気量と吸引量とを同量にする必要がある。すなわち
、送気量が多いと体腔のＩｌｌ脹過多となり、一方吸引
量が多いと体腔の一定量の膨張が少なくなるか、なくな
ってしまうからである。[Prior Art] An endoscope has a built-in pipe system for supplying air, water, and suction into the body cavity, and when inspecting or treating the body cavity, the endoscope uses a pipe system to inflate the body cavity by a certain amount. Air is sent,
In addition, water, air, and suction are performed to clean the inside of the body cavity and the observation window. Furthermore, recent endoscopes are disclosed in, for example, Japanese Patent Laid-Open No. 61-73634, Japanese Patent Laid-Open No. 61-14134,
As seen in Japanese Patent No. 0, a recirculation air supply/suction device is provided to improve drainage of the pipe system and prevent clogging of the nozzle. To perform this recirculation air supply and suction, it is necessary to make the amount of air supplied and the amount of suction equal to each other in order to ensure safety. That is, if the amount of air supplied is large, the body cavity will over-inflate, while if the amount of suction is large, a certain amount of inflation of the body cavity will be reduced or eliminated.
ところで、従来の環流送気吸引装置では、環流手段と、
通常の内視鏡検査中に行なわれる送気、送水、吸引を制
御する手段とは連動せず、したがって環流中であっても
送気、送水、吸引を行うことができた。By the way, in the conventional recirculation air supply/suction device, the recirculation means,
It is not linked to the means for controlling air supply, water supply, and suction that is performed during normal endoscopic examinations, so air supply, water supply, and suction could be performed even during perfusion.
［発明が解決しようとする課題］前記環流送気吸引装置を作動させた環流中に、例えば観
察の妨げとなる体液、粘液等からなる汚物を吸引しよう
とするとき、第７図に示す如く送気管路２０１のノズル
２０２や吸引管路２０３の吸引口２０４を設けた内視鏡
先端部２０５を汚物２０６中に入れて吸引すると、環流
によって前記ノズル２０２から噴出する空気を吸引口２
０４から吸引することとなる。すると、第８［Ｊ（Ａ＞
に示すように吸引管路２０３中に汚物２０６と空気２０
７との層が形成され、この層状態で吸引されて行くが第
８図（Ｂ）に示すように吸引管路２０３の途中で汚物の
層がくずれてしまい下層の空気と汚物とが入れ換わり、
汚物がなかなか吸引されないといった不具合が発生する
ことがある。特に、内視鏡装置では、安全上から吸引圧
は低く設定されているため、吸引の勢いが弱く、前記第
８図（Ｂ）に示す現象が起り易い。このように汚物がな
かなか吸引されないと、その分向視鏡検査時間が長びく
結果となり、患者の苦痛が増すこととなる。[Problems to be Solved by the Invention] When attempting to suck in waste material such as body fluids, mucus, etc. that would obstruct observation during the recirculation when the recirculation air supply/suction device is operated, the recirculation air supply/suction device is operated as shown in FIG. When the endoscope tip 205 equipped with the nozzle 202 of the tracheal passage 201 and the suction port 204 of the suction conduit 203 is inserted into the waste 206 and suctioned, the air ejected from the nozzle 202 by circulation is transferred to the suction port 2.
It will be suctioned from 04 onwards. Then, the 8th [J(A>
As shown in FIG.
A layer with 7 is formed, and the dirt is sucked in this layer, but as shown in FIG. 8(B), the layer of dirt collapses in the middle of the suction pipe 203, and the air in the lower layer replaces the dirt. ,
Problems such as difficulty in suctioning of dirt may occur. In particular, in an endoscope apparatus, the suction pressure is set low for safety reasons, so the force of suction is weak, and the phenomenon shown in FIG. 8(B) is likely to occur. If the dirt is not suctioned out easily, the time required for endoscopic examination becomes longer and the patient's pain increases.
本発明は、これらの事情に鑑みてなされたもので、環流
中に汚物を吸引しても、環流しないときと同量の汚物吸
引量が得られ、内視鏡検査時間か長びくことを防止して
患者の苦痛を軽減できるようにした内視鏡装置を提供す
ることを目的としている。The present invention has been developed in view of these circumstances, and allows the same amount of dirt to be suctioned during recirculation as when it is not recirculated, thereby preventing the endoscopy time from becoming longer. The purpose of the present invention is to provide an endoscope device that can reduce patient pain.
［課題を解決するための手段］前記目的を達成するため本発明による内視鏡装置は、少
なくとも内視鏡挿入部の先端部に開口部を有する吸引管
路と、この吸引管路を介して吸引を行う吸引手段と、前
記挿入部の先端部に設けられて観察窓に向って開口した
ノズルに連通ずる送気管路と、この送気管路に送気する
送気手段と、前記吸引管路、送気管路に各々連通する環
流用管路と、前記環流用管路に設けたポンプにて前記吸
引管路の開口部より吸引する一方、この吸引量と同量の
気体をポンプにて送気管路へ送り込みノズルから送気す
る環流手段と、前記吸引手段を動作させた吸引中は前記
環流手段の動作を停止する制御手段とを備えている。[Means for Solving the Problem] In order to achieve the above object, an endoscope device according to the present invention includes a suction conduit having an opening at least at the distal end of an endoscope insertion portion, and a a suction means for performing suction; an air supply conduit communicating with a nozzle provided at the distal end of the insertion section and opening toward the observation window; an air supply means for supplying air to the air supply conduit; and the suction conduit. , a recirculation pipe connected to the air supply pipe, and a pump provided in the recirculation pipe are used to suck gas from the opening of the suction pipe, and the same amount of gas as this suction amount is sent by the pump. The device includes a recirculation means for sending air from a nozzle into the trachea, and a control means for stopping the operation of the recirculation means during suction when the suction means is operated.
［作用］この構成で、吸引管路の先端開口部より吸引する一方、
この吸引量と同量の気体を送気管路へ送り込みノズルか
ら送気する環流動作中に、吸引手段が動作されると前記
環流動作が停止する。[Function] With this configuration, while suction is carried out from the tip opening of the suction pipe,
If the suction means is operated during a reflux operation in which the same amount of gas as this suction amount is sent into the air supply pipe line and sent from the nozzle, the reflux operation is stopped.
［実施例］以下、図面を参照して本発明の詳細な説明する。[Example]Hereinafter, the present invention will be described in detail with reference to the drawings.
第１図ないし第４図は本発明の第１実施例に係り、第１
図は管路図、第２図は各スイッチと答弁との動作タイミ
ングを示すタイムチャート、第３図は内視鏡装置の全体
を示す概略説明図、第４図は内視鏡先端面を示す説明図
である。FIGS. 1 to 4 relate to a first embodiment of the present invention.
The figure is a pipe diagram, Figure 2 is a time chart showing the operation timing of each switch and response, Figure 3 is a schematic explanatory diagram showing the entire endoscope device, and Figure 4 is a view of the end surface of the endoscope. It is an explanatory diagram.
第３図において符号１は、本実施例の内視鏡装置が適用
される一例としての電子内視鏡で、手元側の把持部を兼
ねた挽作部２の前方に先端構成部及び湾曲部を有する細
長な挿入部３を延設する一方、この損作部２の側部にユ
ニバーサルコード４を延設してコネクタ５を介して例え
ば光源装置を内設したビデオプロセッサ６に接続される
ようになっている。前記ビデオプロセッサ６は電子内視
鏡１からの撮像信号を信号処理する信号処理回路を有し
、接続したモニタ７に伝送して画像表示するようになっ
ていると共に、このビデオプロセッサ６は送気ポンプを
内設し、且つこの送気ポンプ及び後述の管路を介して連
通した送水タンク９、環流用吸引ビン１０、及び図示し
ない吸引手段に連通している吸引チューブ１１を取付け
るようになっている。尚、本発明装置が適用される内視
鏡は、前記電子内視鏡に限ることなく、図示はしないが
当然ファイバー等光学式の内視鏡にも適用される。In FIG. 3, reference numeral 1 denotes an electronic endoscope as an example to which the endoscope device of this embodiment is applied, and there is a tip component and a curved portion in front of a grinding portion 2 that also serves as a gripping portion on the hand side. A universal cord 4 is extended to the side of the damaged part 2 so as to be connected to, for example, a video processor 6 equipped with a light source device through a connector 5. It has become. The video processor 6 has a signal processing circuit that processes the imaging signal from the electronic endoscope 1, and transmits the image to a connected monitor 7 for image display. A pump is installed inside, and a water supply tank 9 communicating with the air supply pump through a pipe line to be described later, a circulation suction bottle 10, and a suction tube 11 communicating with a suction means (not shown) are attached. There is. Note that the endoscope to which the device of the present invention is applied is not limited to the above-mentioned electronic endoscope, but can also be applied to optical endoscopes such as fiber optics, although not shown.
第１図に示す管路図において、送気ポンプ１８には第１
の送気管路２２が接続され、この第１の送気管路２２に
は第１の電磁弁（Ｖｌ）２３が設けられており、この第
１の電磁弁２３には第２の送気管路２４が接続されてい
る。又、前記送気管路２２の中途には、送水用送気管路
２５が分岐接続されており、送水タンク１つに連通接続
している。そして、前記送水タンク１つには第１の送水
管路２６が接続され、第２の電磁弁（Ｖ２＞２７を介し
て第２の送水管路２８を接続している。前記第２の送気
管路２４には、環流用送気管路３０が分岐接続され、第
３の電磁弁（Ｖ３）２９を介して環流用吸引ビン１０に
連接されている。前記第２の送気管路２４及び第２の送
水管路２８の端部には、各々継手３１．３２が取り付け
られており、各々内視鏡側の送気管路３３と送水管路３
４とに接続されるようになっている。そして、この送気
管路３３と送水管路３４は各々内視鏡先端部の観察窓に
向かって開口するノズル３６３５に連通している。In the piping diagram shown in FIG.
The first air supply pipe 22 is connected to a first solenoid valve (Vl) 23, and the first solenoid valve 23 is connected to a second air supply pipe 24. is connected. Further, an air supply pipe 25 for water supply is branched and connected in the middle of the air supply pipe 22, and is connected in communication with one water supply tank. A first water supply pipe 26 is connected to one of the water supply tanks, and a second water supply pipe 28 is connected via a second electromagnetic valve (V2>27. A recirculation air supply line 30 is branched and connected to the tracheal line 24, and is connected to the recirculation suction bottle 10 via a third electromagnetic valve (V3) 29. Joints 31 and 32 are attached to the ends of the two water supply pipes 28, respectively, and the air supply pipe 33 and the water supply pipe 3 on the endoscope side are connected to each other.
It is designed to be connected to 4. The air supply pipe 33 and water supply pipe 34 each communicate with a nozzle 3635 that opens toward the observation window at the distal end of the endoscope.
又、図中５１は不燃ガスが貯わえられたガスタンクで、
第１のガス管路５２が接続され、第７の電磁弁５３を介
して第２の送気管路２４に接続されている。一方、吸引
ポンプ２１には第１の吸引管路３７が接続され、この第
１の吸引管路３７は吸引ビン２０に接続されている。さ
らに、吸引ビン２０には第２の吸引管路３８が接続され
ている。Also, 51 in the figure is a gas tank in which non-flammable gas is stored.
A first gas line 52 is connected to the second air supply line 24 via a seventh solenoid valve 53 . On the other hand, a first suction line 37 is connected to the suction pump 21 , and this first suction line 37 is connected to the suction bottle 20 . Furthermore, a second suction line 38 is connected to the suction bottle 20 .
又、第２の吸引管路３８には第４の電磁弁（■４）３つ
を介して第３の吸引管路４０が接続されている。この第
３の吸引管路４０の端部には継手４１が取り付けられて
おり、内視鏡側の吸引管路４２と接続されるようになっ
ている。そして、第２の吸引管路３８にはリーク用管路
５７が分岐されており、第５の電磁弁（Ｖ５）４３を介
して大気に連通している。尚、このリーク用管路５７に
はオリフィス５８が設けられており、リーク時でも吸引
ポンプ２１から第２の吸引管路３８までを負圧に保つよ
うに設定されている。Further, a third suction line 40 is connected to the second suction line 38 via three fourth solenoid valves (4). A joint 41 is attached to the end of this third suction line 40, and is connected to a suction line 42 on the endoscope side. A leak pipe 57 is branched from the second suction pipe 38 and communicates with the atmosphere via a fifth solenoid valve (V5) 43. The leak pipe 57 is provided with an orifice 58, and is set to maintain a negative pressure from the suction pump 21 to the second suction pipe 38 even during leakage.
又、第３の吸引管路４０には、環流用吸引管路４４が分
岐されており、この環流用吸引管＃１４４には第６の電
磁弁（Ｖ６）４５と環流用ローラポンプ１３とが介装さ
れ、該ポンプ１３の吐出側に環流用吸引ビン１０が接続
されている。前記第１〜第６の電磁弁２３，２７．２９
，３９，４３゜４５は、電気的に制御部４６に各々接続
されている。一方、この制御部４６には内視鏡１１の操
作部１２に設けたスイッチ（ＳＷＩ）４７．（ＳＷ２）
４８、（ＳＷ４＞４９、及びビデオプロセッサ１６の外
装に設けたスイッチ（ＳＷ３）５０゜（ＳＷ５）５４．
、（ＳＷ６）５５、（ＳＷ７）５６が接続されている。Further, a recirculation suction pipe 44 is branched from the third suction pipe 40, and a sixth solenoid valve (V6) 45 and a recirculation roller pump 13 are connected to this recirculation suction pipe #144. A reflux suction bottle 10 is connected to the discharge side of the pump 13. Said first to sixth solenoid valves 23, 27.29
, 39, 43° 45 are electrically connected to the control unit 46, respectively. On the other hand, this control section 46 includes a switch (SWI) 47 provided on the operation section 12 of the endoscope 11. (SW2)
48, (SW4>49, and a switch (SW3) provided on the exterior of the video processor 16 (SW3) 50° (SW5) 54.
, (SW6) 55, and (SW7) 56 are connected.
このような構成では、第２図のタイムチャー１〜に示す
ごとく、通常内視鏡検査中の送気送水は、操作部２に設
けられたスイッチ４７と、スイッチ４８のＯＮ、ＯＦＦ
により行われる。すなわち、送気する場合はスイッチ４
７をＯＮにすると制御部４６により第１の電磁弁２３が
開になり送気管路３３を介して送気が行われる。一方、
送水は、スイッチ４８をＯＮすることで、制御部４６が
同様に第２の電磁弁２７を開にし、送水管路３４へ洗浄
水が送られて行われる。In such a configuration, as shown in time charts 1 to 1 in FIG. 2, air and water supply during normal endoscopy is controlled by turning on and off the switch 47 and switch 48 provided on the operation unit 2.
This is done by In other words, when supplying air, switch 4
7 is turned on, the first electromagnetic valve 23 is opened by the control section 46 and air is supplied through the air supply pipe line 33. on the other hand,
Water supply is performed by turning on the switch 48, causing the control unit 46 to similarly open the second electromagnetic valve 27, and flushing water is sent to the water supply pipe 34.
次に、吸引は、操作部１２に設けられたスイッチ４９を
ＯＮ、ＯＦＦさせることにより行われる。Next, suction is performed by turning on and off a switch 49 provided on the operating section 12.
すなわち、スイッチ４９をＯＮにすると制御部４６によ
り、通常第５の電磁弁４３のみが開となって待機状態で
あるのを、スイッチ４９のＯＮに連動して、第５の電磁
弁４３を閉、第４の電磁弁３９を開として吸引が行われ
る。That is, when the switch 49 is turned ON, the control unit 46 causes the fifth solenoid valve 43 to close, which normally is in the standby state with only the fifth solenoid valve 43 open. , the fourth solenoid valve 39 is opened to perform suction.
さらに、環流は次の様に行なわれる。環流の運転、停止
を切換えるスイ・ソチ（ＳＷ３）５０をＯＮにすると第
６の電磁弁４５、第３の電磁弁２９が開になりポンプ１
３が作動し体腔内の流体を吸引管路４２、第３の吸引管
路４０、環流用吸引管８４４を経て吸引し、環流用吸引
ビン１０に流し込む。吸引ビン１０へ流し込まれた流体
は、ここで粘液等の液体と空気とを分離し、空気のみを
環流用送気管路３０、第２の送気管路２４、送気管路３
３、送気送水管路３５を介してノズル３６より（吸引量
と同量の）送気が行なわれる。環流の停止は、スイッチ
５０をＯＦＦすることでポンプ１３が停止し、第３の電
磁弁２９、第６の電磁弁４５を閉となり停止する。Furthermore, reflux is performed as follows. When SW3 (SW3) 50, which switches the operation and stop of circulation, is turned on, the sixth solenoid valve 45 and the third solenoid valve 29 are opened, and the pump 1
3 is activated, the fluid in the body cavity is suctioned through the suction line 42, the third suction line 40, and the circulation suction tube 844, and is poured into the circulation suction bottle 10. The fluid poured into the suction bottle 10 is separated into liquid such as mucus and air, and only the air is passed through the circulation air pipe 30, the second air pipe 24, and the air pipe 3.
3. Air (in the same amount as the suction amount) is supplied from the nozzle 36 via the air and water supply conduit 35. To stop the circulation, the pump 13 is stopped by turning off the switch 50, and the third solenoid valve 29 and the sixth solenoid valve 45 are closed and stopped.
次に、環流中の送気、送水、吸引について説明する。Next, air supply, water supply, and suction during reflux will be explained.
まず、環流中に吸引を行う場合には、吸引中環流を停止
させる制御と、停止させない制御とを切換えるスイッチ
５４ （ＳＷ５）をＯＮにし、環流の動作停止を切換え
るスイッチ５０（ＳＷ３）かＯＮの状態で、すなわち第
６、第３の電磁弁４５２９が開でポンプ１３が作動して
いる状態で吸引を行うスイッチ４９（ＳＷ４）をＯＮに
すると、第５の電磁弁４３が閉、第４の電磁弁３９が開
になり吸引が始まると同時に、第３．第６の電磁弁２９
．４５が閉となりポンプ１３が停止する。そして、スイ
ッチ４９（ＳＷ４）をＯＦＦにすると、第５の電磁弁４
３が開に、第４の電磁弁３９が閉となって吸引が停止し
、第３．第６の電磁弁２９４５が開になってポンプ１３
が作動して環流動作に戻る。First, when performing suction during recirculation, turn ON the switch 54 (SW5) that switches between stopping and not stopping the recirculation during suction, and then turn ON the switch 50 (SW3) that switches between stopping the recirculation operation. state, that is, when the sixth and third solenoid valves 4529 are open and the pump 13 is operating, when the switch 49 (SW4) that performs suction is turned on, the fifth solenoid valve 43 closes and the fourth solenoid valve 4529 is closed. At the same time that the solenoid valve 39 opens and suction begins, the third. Sixth solenoid valve 29
．． 45 is closed and the pump 13 is stopped. Then, when the switch 49 (SW4) is turned OFF, the fifth solenoid valve 4
3 is opened, the fourth solenoid valve 39 is closed and suction is stopped, and the third solenoid valve 39 is closed. The sixth solenoid valve 2945 is opened and the pump 13
is activated and returns to circulation operation.
次に、環流中の送水について説明すると、本実施例の如
く送気用ノズル３６と、送水用のノズル３５とが別々に
設けられているタイプの内視鏡では、環流送気中に送水
すると、第４図に示すように送気用のノズル３６から常
時空気が噴出している為、送水した水が吹き飛ばされて
観察窓１０１のレンズ面が洗浄できないといった不都合
が起こる。そこで、この場合送水中のみ環流用送気管路
を閉塞して送気されない手段を収っている。環流申送水
するには、スイッチ５０がＯＮ状態、すなわち第３．第
６の電磁弁２９．４５が開、ポンプ１３が作動状態でス
イッチ５５（ＳＷ６）をＯＮすると、第２の電磁弁２７
が開になって送水が行なわれると同時に、第３の電磁弁
２９が閉となり環流用の送気が停止する。前記スイッチ
５５がＯＦＦとなると、第２の電磁弁２７が閉、第３の
電磁弁２９が開となり送水が停止して環流用送気が再開
される。このような制御が行なわれることにより、２ノ
ズルの内視鏡で環流中に送水しても確実に観察窓１０１
を洗浄することができる。Next, to explain the water supply during the circulation, in an endoscope of the type in which the air supply nozzle 36 and the water supply nozzle 35 are separately provided as in this embodiment, when water is supplied during the circulation. As shown in FIG. 4, since air is constantly ejected from the air supply nozzle 36, the supplied water is blown away and the lens surface of the observation window 101 cannot be cleaned. Therefore, in this case, a means is provided to block the circulation air supply line only for water supply so that air is not supplied. To recycle water, the switch 50 is in the ON state, that is, the third. When the sixth solenoid valve 29.45 is opened and the switch 55 (SW6) is turned on with the pump 13 in operation, the second solenoid valve 27
At the same time that the third electromagnetic valve 29 is closed and the supply of air for circulation is stopped. When the switch 55 is turned off, the second solenoid valve 27 is closed and the third solenoid valve 29 is opened, water supply is stopped, and circulation air supply is restarted. By performing such control, even if water is supplied during circulation with a two-nozzle endoscope, the observation window 101 can be reliably filled.
can be washed.
次に、環流中に送ガスを行う場合について説明すると、
通常内視鏡検査中、高周波メス等で患部を切除或は治療
等するとき、爆発を防止する為に不燃ガスを送気するが
、送ガス後も環流が行なわれると、せっかく送ガスして
も吸引ビン１ｏ、管路内の空気でガスが稀薄されてしま
う。その為、送ガス量が少ないと爆発の可能性が残り、
又、十分なガス濃度にするにはかなりの時閏送ガスを行
なわなければならない。そこで、本実施例では、送ガス
を行なうと自動的に環流が停止する制御を行なうように
している。環流申送ガスを行なうには、まず送気と送ガ
スとを切換えるスイッチ（ＳＷ７）５６をＯＮ状態とし
、且っ送気を行うスイッチ４７をＯＮにすると、第７の
電磁弁５３が開になり、送ガスされると同時に、第３．
第６の電磁弁２９．４５が閉となってポンプ１３が停止
する。前記スイッチ４７をＯＦＦにすると、第７の電磁
弁５３のみ閉となり、その状態を維持する。Next, we will explain the case where gas is supplied during reflux.
Normally, during endoscopy, when cutting or treating the affected area with a high-frequency scalpel, non-flammable gas is delivered to prevent explosions, but if the gas continues to circulate even after the gas is delivered, In the suction bottle 1o, the gas is diluted by the air inside the pipe. Therefore, if the amount of gas supplied is small, there is a possibility of explosion.
Further, in order to obtain a sufficient gas concentration, it is necessary to feed the gas at a considerable time. Therefore, in this embodiment, control is performed to automatically stop the circulation when gas is fed. To perform recirculation gas, first turn on the switch (SW7) 56 that switches between air supply and gas supply, and then turn on the air supply switch 47, which opens the seventh solenoid valve 53. At the same time as gas is being supplied, the third.
The sixth solenoid valve 29.45 is closed and the pump 13 is stopped. When the switch 47 is turned off, only the seventh solenoid valve 53 is closed and this state is maintained.
そして、再度環流を行うには、環流スイッチ５゜を再度
ＯＮにすることによって環流が再開する。Then, to perform the circulation again, the circulation switch 5° is turned ON again to restart the circulation.
このような制御を行なうことによって、送ガスしてもガ
スが薄まることがなく安全である。By performing such control, the gas is safe because it does not dilute even when the gas is fed.
第５図及び第６図は本発明の第２実施例に係り、第５図
は配管図、第６図はタイミングチャー）・である。5 and 6 relate to a second embodiment of the present invention, in which FIG. 5 is a piping diagram and FIG. 6 is a timing chart.
第５図に示す管路図において、送気ポンプ５９には第１
の送気管路６０が接続され、この第１の送気管路６０に
は第１の電磁弁（Ｖｌ）６］が設けられており、この第
１の電磁弁６１には第２の送気管路６３が接続されてい
る。又、面記送気管路６０の中途には、送水用送気管路
６４が分岐接続されており、送水タンク６５に連通接続
している。そして、前記送水タンク６５には第１の送水
管路６６が接続され、第２の電磁弁（Ｖ２）６７を介し
て第２の送水管路６８を接続している。前記第２の送気
管路６３には、環流用送気管路７０が分岐接続され、３
方向弁である第３の電磁弁（Ｖ３）６９を介して環流用
送気ポンプ７１に連接されている。前記第３の電磁弁（
Ｖ３）６９のもう一方の出口には、第２の送水管路６８
に連通ずるバイパス管路７２が設けられている。前記第
２の送気管路６３及び第２の送水管路６８の端部には、
各々継手７３．７４が取り付けられており、各々内視鏡
側の送気管路７５と送水管路７６とに接続されるように
なっている。そして、この送気管路７５と送水管路７６
は各々内視鏡先端部の観察窓に向かって開口するノズル
７７．７８に連通している。一方、吸引ポンプ７９には
第１の吸弓管路８０が接続され、この第１の吸引管路８
０は吸引ビン８１に接続されている。さらに、吸引ビン
８１には第２の吸引管路８２が接続されている。In the piping diagram shown in FIG.
The first air supply pipe 60 is connected to a first solenoid valve (Vl) 6], and the first solenoid valve 61 is connected to a second air supply pipe. 63 is connected. Further, an air supply pipe 64 for water supply is branched and connected to the middle of the surface air supply pipe 60 and is connected to a water supply tank 65 . A first water supply pipe line 66 is connected to the water supply tank 65, and a second water supply pipe line 68 is connected via a second electromagnetic valve (V2) 67. A recirculation air supply pipe 70 is branched and connected to the second air supply pipe 63, and
It is connected to a circulation air pump 71 via a third solenoid valve (V3) 69 which is a directional valve. The third solenoid valve (
V3) 69 has a second water supply pipe 68 at the other outlet.
A bypass conduit 72 is provided which communicates with the. At the ends of the second air supply pipe line 63 and the second water supply pipe line 68,
Joints 73 and 74 are attached to each of them, and are connected to an air supply line 75 and a water supply line 76 on the endoscope side, respectively. Then, this air supply pipe line 75 and water supply pipe line 76
are in communication with nozzles 77 and 78, respectively, which open toward the observation window at the distal end of the endoscope. On the other hand, a first suction pipe line 80 is connected to the suction pump 79.
0 is connected to the suction bottle 81. Furthermore, a second suction line 82 is connected to the suction bottle 81 .
又、第２の吸引管路８２には第４の電磁弁（■４）８２
を介して第３の吸引管路８４が接続されている。この第
３の吸引管路８４の端部には継手８５が取り付けられて
おり、内視鏡側の吸引管路８６と接続されるようになっ
ている。そして、第２の吸引管路８２にはリーク用管路
８７が分岐されており、第５の電磁弁（Ｖ５）８８を介
して大気に連通している。In addition, a fourth solenoid valve (■4) 82 is provided in the second suction pipe line 82.
A third suction conduit 84 is connected thereto. A joint 85 is attached to the end of this third suction line 84, and is connected to a suction line 86 on the endoscope side. A leak pipe 87 is branched from the second suction pipe 82 and communicates with the atmosphere via a fifth solenoid valve (V5) 88.
又、第３の吸引管路８４には、環流用吸引管路８５が分
岐されており、環流用吸引ビン８９を介して環流用吸引
ポンプ９０が接続されている。前記第１〜第５の電磁弁
６１．６７、．６９，５３゜８８は、電気的に制御部９
１に各々接続されている。一方、この制御部９１には内
視！１１の操作部１２に設けたスイッチ（ＳＷＩ）９２
．（ＳＷ２）９３、（ＳＷ４）９４、及びビデオプロセ
ッサ１６の外装に設けたスイッチ（ＳＷ３）９５（ＳＷ
５）９６が接続されている。Further, a reflux suction line 85 is branched off from the third suction line 84 , and a reflux suction pump 90 is connected to the third suction line 84 via a reflux suction bottle 89 . The first to fifth solenoid valves 61, 67, . 69,53°88 is the electrical control unit 9
1, respectively. On the other hand, this control unit 91 has internal vision! Switch (SWI) 92 provided on the operation unit 12 of 11
．． (SW2) 93, (SW4) 94, and switches (SW3) 95 (SW
5) 96 is connected.
このような構成では、環流を行なわないときの送気、送
水、吸引は第１実施例と同様の動作を示すので説明を省
略する。In such a configuration, air supply, water supply, and suction when no circulation is performed operate in the same manner as in the first embodiment, so explanations thereof will be omitted.
環流は、環流スイッチ９５をＯＮにすることで、通常第
３の電磁弁６つの出口は第２の送気管路６３側に切換っ
ている為、環流用送気ポンプ７１、環流用吸引ポンプ９
０が作動して行なわれる。Circulation is carried out by turning on the circulation switch 95. Normally, the outlets of the six third solenoid valves are switched to the second air supply pipe line 63, so that the circulation air pump 71 and the circulation suction pump 9 are turned on.
0 is activated.
次に、漂流中吸引を行うには、すなわち環流スイッチ９
５がＯＮの状態で吸引スイッチ９４をＯＮにすると、第
５の電磁弁８８が閉に、第４の電磁弁８３が開になり、
吸引が開始されると同時に、環流用送気ポンプ７１、環
流用吸引ポンプ９０が停止する。一方、吸引スイッチ９
４をＯＦＦにすると、第４の電磁弁８３が閉に、第５の
電磁弁８５が開になり、環流用送気ポンプ７１、環流用
吸引ポンプ９０が運転を再開する。Next, to perform suction during drifting, that is, the reflux switch 9
When the suction switch 94 is turned ON while the valve 5 is ON, the fifth solenoid valve 88 is closed and the fourth solenoid valve 83 is opened.
At the same time as suction is started, the circulation air supply pump 71 and the circulation suction pump 90 are stopped. On the other hand, the suction switch 9
4 is turned off, the fourth solenoid valve 83 is closed, the fifth solenoid valve 85 is opened, and the circulation air supply pump 71 and the circulation suction pump 90 resume operation.
次に、漂流中送水するには、送気管路７５と送水管路７
６とを切換えるスイッチ９６をＯＮにした状態で、スイ
ッチ９３をＯＮにすると、第２の電磁弁６７が開となり
、送水が行なわれると同時に、第３の電磁弁６９の出口
が第２の送水管路６８側に切り換わって送水管路７６に
送気される。Next, in order to convey water while drifting, the air supply pipe 75 and the water supply pipe 7 are
When the switch 93 is turned on while the switch 96 for switching between the The air is switched to the water pipe line 68 side and sent to the water pipe line 76.
この制御方法であると、環流中の送水は噴霧送水となっ
て観察窓の洗浄力がアップする。With this control method, the water supplied during the circulation becomes sprayed water, increasing the cleaning power of the observation window.
［発明の効果］以上説明したように本考案によれば、環流中に汚物を吸
引しても、環流しないときと同量の汚物吸引量が得られ
、内視鏡検査時間が長びくことを防止して患者の苦痛を
軽減できる効果がある。[Effects of the Invention] As explained above, according to the present invention, even if filth is sucked during perfusion, the same amount of filth can be suctioned as when no reflux is performed, and the length of the endoscopy time can be prevented. This has the effect of reducing patient pain.
第１図ないし第４図は本発明の第１実施例に係り、第１
図は管路図、第２図は各スイッチと答弁との動作タイミ
ングを示すタイムチャート、第３図は内視鏡装置の全体
を示す概略説明図、第４図は内視鏡先端面を示す説明図
、第５図及び第６図は本考案の第２実施例に係り、第５
図は配管図、第６図はタイミングチャート、第７図及び
第８図は従来例を示す説明図である。３・・・挿入部 １０・・・環流用吸引ビン
１３・・・環流用ポンプ １８・・送気ポンプ２２．
２４．３３・・・送気管路２６．２８．３４・・送水管路３０・・・環流用送気管路３７．３８．４０．４２・・・吸引管路じ゛テオフ゛ロ
Ｉｉ−／す狽う第１ｒＩＡＩ木１キ（し１間−Ｌイ昨１第３図第５図第７図第８図手続補正書泪発）平成３年１月１７日FIGS. 1 to 4 relate to a first embodiment of the present invention.
The figure is a pipe diagram, Figure 2 is a time chart showing the operation timing of each switch and response, Figure 3 is a schematic explanatory diagram showing the entire endoscope device, and Figure 4 is a view of the end surface of the endoscope. The explanatory drawings, FIGS. 5 and 6, relate to the second embodiment of the present invention, and the fifth embodiment
FIG. 6 is a piping diagram, FIG. 6 is a timing chart, and FIGS. 7 and 8 are explanatory diagrams showing conventional examples. 3... Insertion part 10... Suction bottle for circulation 13... Pump for circulation 18... Air supply pump 22.
24.33...Air supply pipe line 26.28.34...Water supply pipe line 30...Recirculation air supply pipe line 37.38.40.42...Suction pipe line ``Teofuro Ii-'' 1rIA I Tree 1 Ki (Shi 1-L I Last 1 Fig. 3 Fig. 5 Fig. 7 Fig. 8 Procedural amendments published) January 17, 1991
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2221681AJPH04102434A (en) | 1990-08-22 | 1990-08-22 | Endoscope device |
| US07/682,739US5191878A (en) | 1990-04-12 | 1991-04-09 | Endoscope device |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2221681AJPH04102434A (en) | 1990-08-22 | 1990-08-22 | Endoscope device |
| Publication Number | Publication Date |
|---|---|
| JPH04102434Atrue JPH04102434A (en) | 1992-04-03 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2221681APendingJPH04102434A (en) | 1990-04-12 | 1990-08-22 | Endoscope device |
| Country | Link |
|---|---|
| JP (1) | JPH04102434A (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010068966A (en)* | 2008-09-18 | 2010-04-02 | Olympus Medical Systems Corp | Air supply-water supply-suction device and system |
| JP2013255675A (en)* | 2012-06-13 | 2013-12-26 | Hoya Corp | Air/water feeding device of endoscope including water supply bottle |
| JP2014000288A (en)* | 2012-06-20 | 2014-01-09 | Hoya Corp | Air/water supply device of endoscope with water feed bottle |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010068966A (en)* | 2008-09-18 | 2010-04-02 | Olympus Medical Systems Corp | Air supply-water supply-suction device and system |
| JP2013255675A (en)* | 2012-06-13 | 2013-12-26 | Hoya Corp | Air/water feeding device of endoscope including water supply bottle |
| JP2014000288A (en)* | 2012-06-20 | 2014-01-09 | Hoya Corp | Air/water supply device of endoscope with water feed bottle |
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