JP5944239B2 - Endoscope spray adapter - Google Patents

Endoscope spray adapter Download PDF

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JP5944239B2
JP5944239B2 JP2012138901A JP2012138901A JP5944239B2 JP 5944239 B2 JP5944239 B2 JP 5944239B2 JP 2012138901 A JP2012138901 A JP 2012138901A JP 2012138901 A JP2012138901 A JP 2012138901A JP 5944239 B2 JP5944239 B2 JP 5944239B2
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supply pipe
water
pipe
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JP2014000309A (en
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哲 平山
哲 平山
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Hoya Corp
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Description

この発明は、内視鏡の外部に配置された給水ボトルから延出する給気給水管と内視鏡内に配管された送気送水管との接続部に、任意に介挿接続して送水動作に噴霧機能を付与することができる内視鏡の噴霧アダプタに関する。   The present invention provides water supply by arbitrarily interposing and connecting to a connection portion between an air supply / water supply pipe extending from a water supply bottle arranged outside the endoscope and an air supply / water supply pipe piped in the endoscope. The present invention relates to an endoscope spray adapter capable of providing a spray function for operation.

体腔内において内視鏡の観察窓の表面に粘液や汚物等が付着して、内視鏡観察が妨げられる場合がある。そこで、内視鏡には一般に、観察窓の表面を水で洗い流すための送水機能が備えられており、その水を貯留する給水ボトルが内視鏡の外部に設けられている。   In the body cavity, mucus, filth, etc. may adhere to the surface of the observation window of the endoscope, and the endoscopic observation may be hindered. Therefore, an endoscope is generally provided with a water supply function for washing the surface of the observation window with water, and a water supply bottle for storing the water is provided outside the endoscope.

また内視鏡には、体腔内の臓器を観察し易いように膨らませたり、観察窓の表面に残った水滴を吹き飛ばしたりするための送気機能が備えられていて、送気装置の動作源として外部送気ポンプが設けられている。   The endoscope is also equipped with an air supply function to inflate the organs in the body cavity so that it can be easily observed, and to blow off water droplets remaining on the surface of the observation window. An external air pump is provided.

そのような外部送気ポンプから送り出される加圧空気は給水ボトル内に送られ、給水ボトル内の貯留水が加圧される。そして、その圧力により給水ボトル内の貯留水が送水管を通って送り出されるようになっており、一つの外部送気ポンプが送水装置の駆動源にもなっている。   The pressurized air sent out from such an external air supply pump is sent into the water supply bottle, and the stored water in the water supply bottle is pressurized. And the stored water in a water supply bottle is sent out through a water pipe by the pressure, and one external air supply pump is also a drive source of the water supply apparatus.

また、粘液や汚物等が観察窓に強力に付着すると、送水ノズルから水を吹き付けただけでは容易に洗い流すことができない場合がある。そこで、送水管と送気管を途中で合流させて送水管内に加圧空気を混入させ、噴霧状態にして観察窓に吹き付けることで粘液等を洗い流す洗浄力を向上させたものもある（例えば、特許文献１、２、３）。   In addition, if mucus, dirt, or the like adheres strongly to the observation window, it may not be easily washed away by simply spraying water from the water supply nozzle. Therefore, there is also one that improves the cleaning power to wash away mucus etc. by joining the water supply pipe and air supply pipe in the middle to mix pressurized air into the water supply pipe and spraying it on the observation window in a sprayed state (for example, patents) Literature 1, 2, 3).

特開２００３−５２６２１JP 2003-52621 A 特開平３−２１５２４１JP-A-3-215241 特開平９−２９４７１５JP-A-9-294715

送水管内に加圧空気を水に対し適切な混合比で混入させて、噴霧状態にしたものを観察窓に吹き付けると、観察窓に強力に付着した粘液等でも洗い流すことができる。しかし、噴霧を可能にした従来の装置においては、送水管と送気管を途中で合流させていたので、噴霧動作の後に送気操作がなされた時、合流部より先端寄りの送気管内に残っていた水や合流部付近に残っていた水が観察窓に向かって吹き出されてしまう。   When the compressed air is mixed into the water pipe at an appropriate mixing ratio with respect to water and the sprayed state is sprayed onto the observation window, it is possible to wash away mucus or the like strongly adhered to the observation window. However, in the conventional device that enabled spraying, the water supply pipe and the air supply pipe were joined in the middle, so when the air supply operation was performed after the spraying operation, it remained in the air supply pipe closer to the tip than the junction. The water that had been left and the water that remained in the vicinity of the junction would be blown out toward the observation window.

そのため、従来のそのような内視鏡においては、術者が噴霧操作をした後で送気操作をした直後に毎回、術者の意に反して観察窓に水滴が吹き付けられて観察の妨げになり、内視鏡操作のリズムが乱されてしまうという問題が生じる。   Therefore, in such conventional endoscopes, every time immediately after the surgeon performs the spraying operation and immediately after the air feeding operation, water droplets are sprayed on the observation window against the intention of the operator, thereby obstructing the observation. Thus, there arises a problem that the rhythm of the endoscope operation is disturbed.

また、「噴霧」の状態では観察窓に付着した粘液等を洗い流す動作に伴って加圧空気が体腔内に送り込まれるので、噴霧操作を長時間行うと、術者が意図していない多量の空気が体腔内に送り込まれて、被検者に苦痛を与えてしまう場合がある。   In addition, in the “spray” state, pressurized air is sent into the body cavity along with the operation of washing mucus and the like adhering to the observation window. May be sent into the body cavity and cause pain to the subject.

そのようなことがあるため、一般的な内視鏡では、送水操作時に噴霧状態になる機能は採用されておらず、観察窓の表面に向かって水だけが吹き付けられる単純な送水機能しか組み込まれていない。その結果、内視鏡検査を行う被検部に汚れた粘液等が多く存在する場合等には観察窓の汚れを落とすのに手間取り、内視鏡観察を円滑に行えない場合があった。   For this reason, general endoscopes do not employ the function of spraying water during a water supply operation, and incorporate only a simple water supply function that sprays only water toward the surface of the observation window. Not. As a result, when a large amount of soiled mucus or the like is present in a portion to be subjected to endoscopy, it may take time to clean the observation window, and endoscopic observation may not be performed smoothly.

本発明はそのような事情に鑑みてなされたものであり、送水操作時に噴霧状態になる機能が採用されていない一般的な内視鏡であっても、必要に応じて任意に噴霧機能を付与して、観察窓に強力に付着した粘液等を洗い流すことができるようにする内視鏡の噴霧アダプタを提供することを目的とする。   The present invention has been made in view of such circumstances, and even if it is a general endoscope that does not employ a function of being in a spray state during a water supply operation, a spray function is arbitrarily provided as necessary. An object of the present invention is to provide an endoscope spray adapter that can wash away mucus or the like strongly adhered to an observation window.

上記の目的を達成するため、本発明の内視鏡の噴霧アダプタは、送気管と送水管とが内視鏡内に配管されて、内視鏡外には、内視鏡の観察窓に吹き付けるために送水管に供給される水が貯留された給水ボトルと、給水ボトル内を加圧すると共に送気管に供給される加圧空気を送り出すための外部送気ポンプとが配置され、給水ボトルから延出する給気管と給水管の先端に設けられた給気給水コネクタが、送気管と送水管の基端に設けられた給気給水コネクタ受けに着脱自在に接続されて、給気管と送気管及び給水管と送水管が各々接続される構成を備えた内視鏡の送気送水装置に対し、給気給水コネクタと給気給水コネクタ受けとの間に着脱自在に介挿接続される内視鏡の噴霧アダプタであって、給気管内を通って送られてきた加圧空気を、給水管と送水管との接続部に流入させることにより、給水管内を通ってきた水と混合させて送水管に送り込むための噴霧用通気路が設けられて、観察窓に吹き付けられる水を空気混じりの噴霧状態にすることができるようにしたものである。   In order to achieve the above object, the spray adapter for an endoscope according to the present invention has an air supply tube and a water supply tube piped inside the endoscope, and sprays on the observation window of the endoscope outside the endoscope. For this purpose, a water supply bottle in which water supplied to the water supply pipe is stored and an external air supply pump for pressurizing the inside of the water supply bottle and sending out pressurized air supplied to the air supply pipe are arranged from the water supply bottle. An air supply / water supply connector provided at the distal end of the supply air pipe and the water supply pipe is detachably connected to an air supply / water supply connector receiver provided at the proximal end of the air supply pipe and the water supply pipe. Endoscope that is detachably inserted between an air supply / water supply connector and an air supply / water supply connector receiver for an air supply / water supply device of an endoscope having a configuration in which a water supply pipe and a water supply pipe are connected to each other. Of the compressed air sent through the air supply pipe, By flowing into the connection between the water pipe and the water supply pipe, a spraying air passage is provided for mixing with the water that has passed through the water supply pipe and feeding it into the water supply pipe, so that the water blown to the observation window is mixed with air. It is designed to be in a sprayed state.

なお、噴霧用通気路が、給水管と送水管とを接続する管の管壁に穿設された孔であってもよく、そのようにすることで構成を極めてシンプルにすることができる。或いは、噴霧用通気路が、給水管と送水管とを接続する管の管壁の外面に形成された溝であってもよい。   Note that the spraying air passage may be a hole formed in the tube wall of the pipe connecting the water supply pipe and the water supply pipe. By doing so, the configuration can be extremely simplified. Or the groove | channel formed in the outer surface of the pipe wall of the pipe | tube which connects a water supply pipe and a water supply pipe may be sufficient as the ventilation path for spraying.

また、噴霧用通気路を外部から開閉操作することができる通気路制御手段が設けられていてもよく、通気路制御手段により、噴霧用通気路の最小流路断面積を調整することができるようにしてもよい。このようにすることにより、噴霧操作による体腔内への過剰送気の発生を防止することができる。   Further, an air passage control means that can open and close the air passage for spraying from the outside may be provided, and the air passage control means can adjust the minimum channel cross-sectional area of the air passage for spraying. It may be. By doing in this way, generation | occurrence | production of the excess air supply in a body cavity by spraying operation can be prevented.

本発明によれば、給水ボトルから延出する給気給水コネクタと内視鏡側の給気給水コネクタ受けとの間に着脱自在に介挿接続される噴霧アダプタに、給気管内を通って送られてきた加圧空気を、給水管と送水管との接続部に流入させることにより、給水管内を通ってきた水と混合させて送水管に送り込むための噴霧用通気路が設けられて、観察窓に吹き付けられる水を空気混じりの噴霧状態にすることができるので、送水操作時に噴霧状態になる機能が採用されていない一般的な内視鏡であっても、噴霧アダプタを取り付けることにより必要に応じて任意に噴霧機能を付与して、観察窓に強力に付着した粘液等を洗い流すことができる。   According to the present invention, the spray adapter that is detachably inserted between the air supply / water supply connector extending from the water supply bottle and the air supply / water supply connector receiver on the endoscope side is sent through the air supply pipe. By supplying the pressurized air that has been introduced into the connection between the water supply pipe and the water supply pipe, a spraying air passage for mixing with the water that has passed through the water supply pipe and feeding it into the water supply pipe is provided for observation. Since the water sprayed on the window can be made into a spray state mixed with air, even if it is a general endoscope that does not adopt the function to become a spray state during water supply operation, it is necessary by attaching a spray adapter Accordingly, it is possible to arbitrarily give a spray function and wash away mucus or the like strongly adhered to the observation window.

本発明の第１の実施例に係る内視鏡の送気送水装置の全体構成を示す略示図である。1 is a schematic diagram showing an overall configuration of an endoscope air / water feeding device according to a first embodiment of the present invention. 本発明の第１の実施例に係る内視鏡の噴霧アダプタ（接続前）の側面断面図である。It is side surface sectional drawing of the spray adapter (before connection) of the endoscope which concerns on 1st Example of this invention. 本発明の第１の実施例に係る内視鏡の噴霧アダプタの図２におけるIII−III断面図である。It is the III-III sectional view in Drawing 2 of the spray adapter of the endoscope concerning the 1st example of the present invention. 本発明の第１の実施例に係る内視鏡の噴霧アダプタの図２におけるIV−IV断面図である。It is IV-IV sectional drawing in FIG. 2 of the spray adapter of the endoscope which concerns on 1st Example of this invention. 本発明の第１の実施例に係る内視鏡の噴霧アダプタ（接続後）の側面断面図である。It is side surface sectional drawing of the spray adapter (after connection) of the endoscope which concerns on 1st Example of this invention. 本発明の第２の実施例に係る内視鏡の噴霧アダプタの側面断面図である。It is side surface sectional drawing of the spray adapter of the endoscope which concerns on 2nd Example of this invention. 本発明の第２の実施例に係る内視鏡の噴霧アダプタの図６におけるＶII−ＶII断面図である。It is VII-VII sectional drawing in FIG. 6 of the spray adapter of the endoscope which concerns on 2nd Example of this invention. 本発明の第３の実施例に係る内視鏡の噴霧アダプタ（単体）の側面断面図である。It is side surface sectional drawing of the spray adapter (single unit) of the endoscope which concerns on 3rd Example of this invention. 本発明の第３の実施例に係る内視鏡の噴霧アダプタ（噴霧状態）の側面断面図である。It is side surface sectional drawing of the spray adapter (sprayed state) of the endoscope which concerns on 3rd Example of this invention. 本発明の第３の実施例に係る内視鏡の噴霧アダプタ（送水状態）の側面断面図である。It is side surface sectional drawing of the spray adapter (water supply state) of the endoscope which concerns on 3rd Example of this invention.

以下、図面を参照して本発明の第１の実施例を説明する。
図１は、内視鏡の送気送水装置の全体構成を略示している。内視鏡１の挿入部２の基端には操作部３が連結されている。その操作部３から延出する連結可撓管４の先端には、図示されていないビデオプロセッサ兼光源装置に接続されるコネクタ部５が設けられている。 Hereinafter, a first embodiment of the present invention will be described with reference to the drawings.
FIG. 1 schematically shows an overall configuration of an air / water feeding device of an endoscope. An operation unit 3 is connected to the proximal end of the insertion unit 2 of the endoscope 1. A connector portion 5 connected to a video processor / light source device (not shown) is provided at the distal end of the connecting flexible tube 4 extending from the operation portion 3.

挿入部２の最先端面７には、観察窓と照明窓が配置されている他、観察窓の表面に向かって空気を吹き付ける送気ノズル８、及び観察窓の表面に向かって水を吹き付ける送水ノズル９等が配置されている。   An observation window and an illumination window are arranged on the most distal surface 7 of the insertion portion 2, an air supply nozzle 8 that blows air toward the surface of the observation window, and a water supply that blows water toward the surface of the observation window Nozzle 9 etc. are arranged.

先端が送気ノズル８に接続された送気管１１と、送水ノズル９に接続された送水管１２とは、共に内視鏡１内に配置されていて、挿入部２内から操作部３内及び連結可撓管４内を通過して、コネクタ部５の側面に配置された給気給水コネクタ受け１０に基端が接続されている。   An air supply pipe 11 whose tip is connected to the air supply nozzle 8 and a water supply pipe 12 connected to the water supply nozzle 9 are both disposed in the endoscope 1, and from the insertion section 2 to the operation section 3 and A proximal end is connected to an air supply / water supply connector receiver 10 disposed on the side surface of the connector portion 5 through the inside of the connecting flexible tube 4.

２３は、内視鏡１の外部に配置された外部送気ポンプである。２４は、観察窓の表面を洗い流すための水を貯留する給水ボトルであり、やはり内視鏡１の外部に設けられている。２５は、給水ボトル２４内の貯留水である。   Reference numeral 23 denotes an external air supply pump disposed outside the endoscope 1. A water supply bottle 24 stores water for washing the surface of the observation window, and is also provided outside the endoscope 1. Reference numeral 25 denotes stored water in the water supply bottle 24.

外部送気ポンプ２３で加圧されて加圧パイプ２６に送り出された加圧空気は、給水ボトル２４内に導入され、給水ボトル２４内の貯留水２５が加圧される。給水ボトル２４の上端部からは給気管２１が延出し、貯留水２５内からは給水管２２が延出している。   Pressurized air pressurized by the external air pump 23 and sent to the pressurization pipe 26 is introduced into the water supply bottle 24, and the stored water 25 in the water supply bottle 24 is pressurized. An air supply pipe 21 extends from the upper end of the water supply bottle 24, and a water supply pipe 22 extends from the stored water 25.

給気管２１と給水管２２は、図１では二本に分離した状態に図示されているが、実際には給水管２２が給気管２１内に緩く挿通された二重管構造になっていて、給水管２２の外周と給気管２１の内周との間の空間が加圧空気の流路になっている。給気管２１と給水管２２の先端には、内視鏡１の給気給水コネクタ受け１０に対し着脱自在に接続される給気給水コネクタ２０が取り付けられている。   Although the air supply pipe 21 and the water supply pipe 22 are illustrated in a state where they are separated into two in FIG. 1, in actuality, the water supply pipe 22 has a double pipe structure loosely inserted into the air supply pipe 21. A space between the outer periphery of the water supply pipe 22 and the inner periphery of the air supply pipe 21 is a flow path for pressurized air. An air supply / water supply connector 20 that is detachably connected to the air supply / water supply connector receiver 10 of the endoscope 1 is attached to the distal ends of the air supply pipe 21 and the water supply pipe 22.

内視鏡１内において、送気管１１と送水管１２とは全長にわたって互いに交わることなく配置されており、操作部３には、送気管１１と送水管１２とを各々遮断／開通状態に切り換え操作することができる公知の送気送水操作弁６が配置されている。   In the endoscope 1, the air supply pipe 11 and the water supply pipe 12 are arranged so as not to cross each other over the entire length, and the operation unit 3 is operated to switch the air supply pipe 11 and the water supply pipe 12 to the shut-off / open state respectively. A known air / water operation valve 6 which can be used is arranged.

送気送水操作弁６は、待機状態においては送気管１１と送水管１２を共に途中で遮断していて、外部送気ポンプ２３から給気管２１内と送気管１１内を通って送られてきた加圧空気が送気送水操作弁６から外部に連続的に放出される。送気送水操作弁６を送気状態にする操作が行われると、送水管１２は遮断されたままで、送気管１１が開通状態になり、加圧空気が送気ノズル８から放出される。   In the standby state, the air / water operation valve 6 shuts off both the air supply pipe 11 and the water supply pipe 12 in the middle, and is sent from the external air supply pump 23 through the air supply pipe 21 and the air supply pipe 11. Pressurized air is continuously discharged from the air / water supply operation valve 6 to the outside. When an operation to bring the air / water supply operation valve 6 to the air supply state is performed, the water supply pipe 12 remains open, the air supply pipe 11 is opened, and pressurized air is released from the air supply nozzle 8.

送気送水操作弁６を送水状態にする操作が行われると、送気管１１が閉塞されて送水管１２が開通状態になる。すると、給水ボトル２４内で加圧された水が、給水管２２内と送水管１２内を通って、送水ノズル９から観察窓の表面に吹き付けられる。   When the operation for bringing the air / water supply operation valve 6 to the water supply state is performed, the air supply pipe 11 is closed and the water supply pipe 12 is opened. Then, the water pressurized in the water supply bottle 24 passes through the water supply pipe 22 and the water supply pipe 12 and is sprayed from the water supply nozzle 9 to the surface of the observation window.

ただし本発明においては、図１に示されるように、噴霧アダプタ３０が、給気給水コネクタ２０と給気給水コネクタ受け１０との間に着脱自在に介挿接続できるように設けられている。噴霧アダプタ３０が使用されない場合には、給気給水コネクタ２０が給気給水コネクタ受け１０に直接接続される。   However, in the present invention, as shown in FIG. 1, the spray adapter 30 is provided so as to be detachably inserted between the air supply / water supply connector 20 and the air supply / water supply connector receiver 10. When the spray adapter 30 is not used, the air supply / water supply connector 20 is directly connected to the air supply / water supply connector receptacle 10.

そして、噴霧アダプタ３０が給気給水コネクタ２０と給気給水コネクタ受け１０との間に介挿接続されると、給気管２１内を通って送られてきた加圧空気が、給水管２２と送水管１２との接続部内に流入することにより、給水管２２を通ってきた水と混合されて送水管１２内に送り込まれ、観察窓に吹き付けられる水が空気混じりの噴霧状態になる。   When the spray adapter 30 is inserted and connected between the air supply / water supply connector 20 and the air supply / water supply connector receiver 10, the pressurized air sent through the air supply pipe 21 is supplied to the water supply pipe 22. By flowing into the connection portion with the water pipe 12, the water mixed with the water that has passed through the water supply pipe 22 and fed into the water feed pipe 12 is sprayed into the observation window.

図２は、そのような噴霧アダプタ３０を示しており、給気給水コネクタ２０側の給水接続管２０Ｗと給気給水コネクタ受け１０側の給水受管１０Ｗとに各々接続される給水側接続管３１と送水側接続管３２とが真っ直ぐに連通して配置されていて、その内側の空間が送水路になっている。なお、給水側接続管３１と送水側接続管３２は本来一つの部品として形成されてよいものであるが、加工上及び組立上等の理由により二つの部品に分けて形成されている。   FIG. 2 shows such a spray adapter 30, and a water supply side connection pipe 31 connected to a water supply connection pipe 20W on the air supply / water supply connector 20 side and a water supply reception pipe 10W on the air supply / water supply connector receiver 10 side, respectively. And the water supply side connecting pipe 32 are arranged in straight communication with each other, and the space inside thereof is a water supply path. The water supply side connection pipe 31 and the water supply side connection pipe 32 may be originally formed as one part, but are formed separately into two parts for reasons of processing and assembly.

また、給気給水コネクタ２０側の給気コネクタ２０Ａと給気給水コネクタ受け１０側のコネクタ受環１０Ａとに各々接続される給気側コネクタ受環３３と送気コネクタ３４とが真っ直ぐに連通して配置されている。   Further, the air supply connector ring 33 and the air supply connector 34 respectively connected to the air supply connector 20A on the air supply / water supply connector 20 side and the connector receiving ring 10A on the air supply / water supply connector receiver 10 side communicate with each other in a straight line. Are arranged.

給気側コネクタ受環３３と送気コネクタ３４は、給水側接続管３１及び送水側接続管３２に対して径方向に隙間をあけて配置されていて、給水側接続管３１及び送水側接続管３２の外周と給気側コネクタ受環３３及び送気コネクタ３４の内周との間の空間が送気路になっている。   The air supply side connector receiving ring 33 and the air supply connector 34 are arranged with a gap in the radial direction with respect to the water supply side connection pipe 31 and the water supply side connection pipe 32, and the water supply side connection pipe 31 and the water supply side connection pipe are arranged. A space between the outer periphery of 32 and the inner periphery of the air supply side connector receiving ring 33 and the air supply connector 34 is an air supply path.

III−III断面を図示する図３、及びIV−IV断面を図示する図４に示されるように、給水側接続管３１及び送水側接続管３２と給気側コネクタ受環３３及び送気コネクタ３４との間を連結する構成部材には、通気路を確保するために各々複数の通気孔３５，３６が穿設されている。また、送気コネクタ３４の外周面には、内視鏡１側のコネクタ受環１０Ａに対してクリック係合させるためのＣリング３７が取り付けられている。   As shown in FIG. 3 illustrating the III-III cross section and FIG. 4 illustrating the IV-IV cross section, the water supply side connection pipe 31, the water supply side connection pipe 32, the air supply side connector receiving ring 33, and the air supply connector 34 are shown. A plurality of ventilation holes 35 and 36 are formed in each of the structural members that connect the two to each other in order to secure a ventilation path. Further, a C-ring 37 for making a click engagement with the connector receiving ring 10 </ b> A on the endoscope 1 side is attached to the outer peripheral surface of the air supply connector 34.

そのように構成された噴霧アダプタ３０の送水側接続管３２の中間部分には、給気管２１内を通って送られてきた加圧空気を送水側接続管３２内に流入させて、給水管２２を通って送られてきた水と混合させるための噴霧用通気孔３９が形成されている。この実施例の噴霧用通気孔３９は、送水側接続管３２の筒状の壁部に軸線に対して垂直に穿設された単純孔である。   In the intermediate portion of the water supply side connection pipe 32 of the spray adapter 30 configured as described above, the pressurized air that has been sent through the air supply pipe 21 is caused to flow into the water supply side connection pipe 32 to be supplied to the water supply pipe 22. A spraying vent 39 is formed for mixing with the water sent through. The spray vent 39 in this embodiment is a simple hole that is formed in the cylindrical wall portion of the water supply side connecting pipe 32 perpendicularly to the axis.

図５は、噴霧アダプタ３０が給気給水コネクタ２０と給気給水コネクタ受け１０との間に介挿接続された状態を示している。なお、各部材の断面のうち噴霧アダプタ３０において送気路及び送水路を形成する部材の断面にのみ斜線を付してある。   FIG. 5 shows a state where the spray adapter 30 is inserted and connected between the air supply / water supply connector 20 and the air supply / water supply connector receiver 10. Of the cross sections of the members, only the cross sections of the members forming the air supply path and the water supply path in the spray adapter 30 are hatched.

このように噴霧アダプタ３０が給気給水コネクタ２０と給気給水コネクタ受け１０との間に介挿接続されると、給気給水コネクタ２０側の給気管２１と給気給水コネクタ受け１０側の送気管１１、及び給気給水コネクタ２０側の給水管２２と給気給水コネクタ受け１０側の送水管１２とが、噴霧アダプタ３０の各部材を介して各々連通接続された状態になり、各接続部は周囲に対し各々Ｏリング等により漏れなくシールされた状態になる。   When the spray adapter 30 is inserted and connected between the air supply / water supply connector 20 and the air supply / water supply connector receiver 10 in this way, the air supply pipe 21 on the air supply / water supply connector 20 side and the air supply / water supply connector receiver 10 side are supplied. The air pipe 11, the water supply pipe 22 on the air supply / water supply connector 20 side, and the water supply pipe 12 on the air supply / water supply connector receiver 10 side are connected to each other via the members of the spray adapter 30. Are sealed without leakage by the O-ring or the like.

具体的には、給気給水コネクタ２０の給気コネクタ２０Ａが噴霧アダプタ３０の給気側コネクタ受環３３と接続され、給水接続管２０Ｗが給水側接続管３１と接続される。また、給気給水コネクタ受け１０のコネクタ受環１０Ａが噴霧アダプタ３０の送気コネクタ３４と接続され、給水受管１０Ｗが送水側接続管３２と接続される。   Specifically, the air supply connector 20 </ b> A of the air supply / water supply connector 20 is connected to the air supply side connector receiving ring 33 of the spray adapter 30, and the water supply connection pipe 20 </ b> W is connected to the water supply side connection pipe 31. Further, the connector receiving ring 10 </ b> A of the air supply / water supply connector receiver 10 is connected to the air supply connector 34 of the spray adapter 30, and the water supply receiving pipe 10 </ b> W is connected to the water supply side connection pipe 32.

その結果、操作部３に設けられている送気送水操作弁６が送水操作されると、給水ボトル２４から送り出された水が、給水管２２から噴霧アダプタ３０の給水側接続管３１及び送水側接続管３２を経由して内視鏡１の送水管１２に送られる。   As a result, when the air / water operation valve 6 provided in the operation unit 3 is operated to supply water, the water supplied from the water supply bottle 24 is supplied from the water supply pipe 22 to the water supply side connection pipe 31 and the water supply side of the spray adapter 30. It is sent to the water supply pipe 12 of the endoscope 1 via the connection pipe 32.

そして、それと同時に、給気管２１内を経由して噴霧アダプタ３０に達している加圧空気が、噴霧用通気孔３９を通って送水側接続管３２内に送り込まれ、給水管２２を通って送られてきた水と送水側接続管３２内の合流部Ｍで合流する。   At the same time, the pressurized air reaching the spray adapter 30 through the air supply pipe 21 is sent into the water supply side connection pipe 32 through the spray vent hole 39 and sent through the water supply pipe 22. It joins with the water which has been joined at the junction M in the water supply side connecting pipe 32.

送水側接続管３２内の水圧は、給水ボトル２４内の加圧空気の圧力より、給水管２２内での減圧分だけ低下している。したがって、送水側接続管３２内の水が噴霧用通気孔３９を通って送水側接続管３２外の送気路側に押し出されることはない。   The water pressure in the water supply side connection pipe 32 is lower than the pressure of the pressurized air in the water supply bottle 24 by the reduced pressure in the water supply pipe 22. Therefore, the water in the water supply side connection pipe 32 is not pushed out to the air supply path side outside the water supply side connection pipe 32 through the spraying vent hole 39.

その結果、送水側接続管３２内の合流部Ｍで合流した加圧空気と水が混合されて送水管１２に送られ、送水ノズル９から観察窓に吹き付けられる水が空気混じりの噴霧状態になり、観察窓に粘液等が強力に付着していても、短時間で洗い流すことができる。   As a result, the pressurized air and water merged at the merging portion M in the water supply side connection pipe 32 are mixed and sent to the water supply pipe 12, and the water sprayed from the water supply nozzle 9 to the observation window is in a spray state mixed with air. Even if mucus or the like is strongly attached to the observation window, it can be washed out in a short time.

ただし、送水ノズル９から噴射される水が適切な噴霧状態になるには、噴霧用通気孔３９の最小流路断面積Ｐが噴霧用通気孔３９より上流側の給水路（給水管２２、給水側接続管３１、送水側接続管３２）の最小流路断面積Ｑに対して適切な比率であることが必要である。実験の結果によれば、Ｐ／Ｑが１／２０〜１／１０の範囲にあることが望ましく、少なくとも、１／４０〜１／５の範囲にあることが必要である。   However, in order for the water sprayed from the water supply nozzle 9 to be in an appropriate sprayed state, the minimum flow passage cross-sectional area P of the spraying vent 39 is a water supply channel upstream of the spraying vent 39 (the water supply pipe 22, the water supply side connection). It is necessary that the ratio is appropriate for the minimum flow path cross-sectional area Q of the pipe 31 and the water supply side connecting pipe 32). According to the results of the experiment, P / Q is preferably in the range of 1/20 to 1/10, and at least in the range of 1/40 to 1/5.

また本発明においては、内視鏡１内の送気管１１と送水管１２とが全長にわたって交わることなく分離して配置されていることにより、送気管１１内に送水管１２側の水が全く混入しないので、送気送水操作弁６を送水操作した後に送気操作を行ったときには、送気ノズル８から空気だけが噴出され、術者の内視鏡操作のリズムが乱されない。   In the present invention, the air supply pipe 11 and the water supply pipe 12 in the endoscope 1 are arranged separately without crossing over the entire length, so that the water on the water supply pipe 12 side is completely mixed in the air supply pipe 11. Therefore, when the air supply operation is performed after the air supply / water supply operation valve 6 is supplied with water, only the air is ejected from the air supply nozzle 8 and the rhythm of the endoscope operation of the surgeon is not disturbed.

このようにして、本発明においては、送水操作時に噴霧状態になる機能が採用されていない一般的な内視鏡であっても、必要に応じて付加的に噴霧アダプタ３０を取り付けるだけで噴霧機能を付与し、観察窓に強力に付着した粘液等を洗い流すことができる。   In this way, in the present invention, even in a general endoscope that does not employ the function of being in a spray state at the time of water supply operation, the spray function can be added only by attaching the spray adapter 30 as necessary. The mucus etc. which adhered strongly to the observation window can be washed away.

図６は、本発明の第２の実施例の噴霧アダプタ１３０が給気給水コネクタ２０と接続された状態を示している。なお、噴霧アダプタ１３０の給水側接続管３１の断面のみに斜線が付されている。   FIG. 6 shows a state where the spray adapter 130 according to the second embodiment of the present invention is connected to the air supply / water supply connector 20. In addition, only the cross section of the water supply side connection pipe 31 of the spray adapter 130 is hatched.

この実施例では、第１の実施例の噴霧用通気孔３９に代えて、給水側接続管３１の外周面に軸線と平行方向に噴霧用通気溝１３９（噴霧用通気路）が形成されている。送水側接続管３２の壁部に孔の類は形成されていない。その他の構成は第１の実施例と同じであり、その説明は省略する。   In this embodiment, instead of the spray vent hole 39 of the first embodiment, a spray vent groove 139 (spray vent path) is formed on the outer peripheral surface of the water supply side connecting pipe 31 in a direction parallel to the axis. . No holes are formed in the wall portion of the water supply side connecting pipe 32. Other configurations are the same as those of the first embodiment, and the description thereof is omitted.

噴霧用通気溝１３９は、VII−VII断面を図示する図７にも示されるように、給水側接続管３１の外周面の給水接続管２０Ｗ内に差し込み接続される部分に、給水側接続管３１の上流側端部に至る範囲まで形成されている。   As shown in FIG. 7 illustrating the VII-VII cross section, the spraying ventilation groove 139 is inserted into and connected to the water supply connection pipe 20 </ b> W on the outer peripheral surface of the water supply side connection pipe 31. It is formed to the range which reaches to the upstream edge part.

その結果、操作部３の送気送水操作弁６が送水操作をされると、給気管２１内を送られてきた加圧空気が、噴霧用通気溝１３９を通って給水接続管２０Ｗ内に送り込まれ、給水ボトル２４から送り出されて給気給水コネクタ２０の給水接続管２０Ｗから給水側接続管３１内を通過する水と合流部Ｍで合流し、送水ノズル９から観察窓に吹き付けられる水が空気混じりの噴霧状態になる。このように、第１の実施例の噴霧用通気孔３９に代えて噴霧用通気溝１３９を形成した場合でも、第１の実施例と同様の作用効果を得ることができる。   As a result, when the air supply / water supply operation valve 6 of the operation unit 3 is operated to supply water, the pressurized air sent through the air supply pipe 21 is sent into the water supply connection pipe 20W through the spraying ventilation groove 139. The water that is fed from the water supply bottle 24 and passes through the water supply side connection pipe 31 from the water supply connection pipe 20W of the air supply / water supply connector 20 joins at the junction M, and the water sprayed from the water supply nozzle 9 to the observation window is air. It becomes a mixed spray state. As described above, even when the spraying ventilation groove 139 is formed instead of the spraying ventilation hole 39 of the first embodiment, the same effects as those of the first embodiment can be obtained.

図８は、本発明の第３の実施例の噴霧アダプタ２３０を示している。なお、ここでは給水側接続管３１とその端部に取り付けられたパッキン４０の断面のみに斜線が付されている。   FIG. 8 shows a spray adapter 230 according to a third embodiment of the present invention. In addition, only the cross section of the water supply side connection pipe 31 and the packing 40 attached to the end part is hatched here.

この実施例では、給気給水コネクタ２０の給水接続管２０Ｗに差し込まれる給水側接続管３１の差し込み部が、給水接続管２０Ｗの内径に対して噴霧用通気路を形成するのに適当な隙間が生じる程度に細く形成されて、その突端部に弾力性のあるパッキン４０が取り付けられている。   In this embodiment, the insertion portion of the water supply side connection pipe 31 inserted into the water supply connection pipe 20W of the air supply / water supply connector 20 has an appropriate gap for forming a spraying air passage with respect to the inner diameter of the water supply connection pipe 20W. An elastic packing 40 is attached to the protruding end portion, which is formed so thin as to occur.

また、給気側コネクタ受環３３と送気コネクタ３４とが、相対的に螺動自在にねじ係合部４１で螺合している。その結果、給気側コネクタ受環３３と送気コネクタ３４とは、相対的に軸線周り方向に回転させることにより、相対的に軸線方向に移動して、送気コネクタ３４側に支持されている給水側接続管３１とその先端のパッキン４０の位置が、給気側コネクタ受環３３に対して軸線方向に移動する。   Further, the air supply side connector receiving ring 33 and the air supply connector 34 are screwed together by a screw engaging portion 41 so as to be relatively screwable. As a result, the air supply side connector receiving ring 33 and the air supply connector 34 are relatively moved in the axial direction by rotating in the direction around the axis, and are supported on the air supply connector 34 side. The positions of the water supply side connecting pipe 31 and the packing 40 at the tip thereof move in the axial direction with respect to the air supply side connector receiving ring 33.

図９と図１０は、給気給水コネクタ２０と噴霧アダプタ２３０が接続された状態を示している。図９に示されるように、パッキン４０が給水接続管２０Ｗの内壁面から離れた状態で操作部３の送気送水操作弁６が送水操作をされると、第２の実施例と同様にして、給水ボトル２４から送り出されて給気給水コネクタ２０の給水接続管２０Ｗから給水側接続管３１内を通過する水に、加圧空気が給水側接続管３１と給水接続管２０Ｗとの間の隙間（噴霧用通気路２３９）を通って給水接続管２０Ｗ内の合流部Ｍで合流し、送水ノズル９から観察窓に吹き付けられる水が空気混じりの噴霧状態になる。   9 and 10 show a state in which the air supply / water supply connector 20 and the spray adapter 230 are connected. As shown in FIG. 9, when the air / water supply operation valve 6 of the operation unit 3 is supplied with water while the packing 40 is separated from the inner wall surface of the water supply connection pipe 20 </ b> W, the same operation as in the second embodiment is performed. A gap between the water supply side connection pipe 31 and the water supply connection pipe 20W is supplied to the water that is sent out from the water supply bottle 24 and passes through the water supply side connection pipe 31 from the water supply connection pipe 20W of the air supply / water supply connector 20. The water that passes through the spraying air passage 239 and joins at the joining portion M in the water supply connecting pipe 20 </ b> W and is sprayed from the water supply nozzle 9 to the observation window is in a sprayed state mixed with air.

そして、給気側コネクタ受環３３と送気コネクタ３４とを相対的に回転させて、図１０に示されるようにパッキン４０が給水接続管２０Ｗの内壁面に密着した状態にすると、噴霧用通気路２３９がパッキン４０で閉塞された状態になるので、送水ノズル９から水だけが観察窓に吹き付けられる単純な送水状態になる。   Then, when the air supply side connector ring 33 and the air supply connector 34 are relatively rotated to bring the packing 40 into close contact with the inner wall surface of the water supply connecting pipe 20W as shown in FIG. Since the path 239 is closed by the packing 40, a simple water supply state in which only water is sprayed from the water supply nozzle 9 to the observation window.

また、給気側コネクタ受環３３と送気コネクタ３４とを軸線周り方向に相対的に適宜に回転させれば、噴霧用通気路２３９の最小流路断面積が変化することにより、噴霧状態での水に対する加圧空気の混合量が制御され、噴霧の状態を術者が望む所望の状態に調節することができる。   Further, if the air supply side connector ring 33 and the air supply connector 34 are relatively appropriately rotated in the direction around the axis line, the minimum flow passage cross-sectional area of the spray air passage 239 changes, so that in the spray state. The amount of pressurized air mixed with water is controlled, and the spray state can be adjusted to a desired state desired by the operator.

このように、パッキン４０とねじ係合部４１は、噴霧用通気路２３９を外部から開閉操作することができると共に、噴霧用通気路２３９の最小流路断面積を調整して噴霧状態を調節することもできる通気路制御手段である。   As described above, the packing 40 and the screw engaging portion 41 can open and close the spraying air passage 239 from the outside, and adjust the spray state by adjusting the minimum flow path cross-sectional area of the spraying air passage 239. It is the ventilation path control means which can also.

なお、本発明は上記実施例に限定されるものではなく、発明の詳細な説明に具体的には記載されていない各種の実施態様を含むものである。   In addition, this invention is not limited to the said Example, The various embodiment which is not specifically described in detailed description of invention is included.

１ 内視鏡
６ 送気送水操作弁
８ 送気ノズル
９ 送水ノズル
１０ 給気給水コネクタ受け
１１ 送気管
１２ 送水管
２０ 給気給水コネクタ
２１ 給気管
２２ 給水管
２３ 外部送気ポンプ
２４ 給水ボトル
３０ 噴霧アダプタ
３１ 給水側接続管
３２ 送水側接続管
３３ 給気側コネクタ受環
３４ 送気コネクタ
３９ 噴霧用通気孔
４０ パッキン（通気路制御手段）
４１ ねじ係合部（通気路制御手段）
１３９ 噴霧用通気溝
２３９ 噴霧用通気路
Ｍ 合流部 DESCRIPTION OF SYMBOLS 1 Endoscope 6 Air supply / water supply operation valve 8 Air supply nozzle 9 Water supply nozzle 10 Air supply / water supply connector receptacle 11 Air supply pipe 12 Water supply pipe 20 Air supply / water supply connector 21 Air supply pipe 22 Water supply pipe 23 External air supply pump 24 Water supply bottle 30 Spray Adapter 31 Water supply side connection tube 32 Water supply side connection tube 33 Air supply side connector ring 34 Air supply connector 39 Ventilation hole for spraying 40 Packing (air flow path control means)
41 Screw engaging portion (air passage control means)
139 Ventilation groove for spraying 239 Ventilation passage for spraying M Confluence

Claims (5)

送気管と送水管とが内視鏡内に配管されて、上記内視鏡外には、上記内視鏡の観察窓に吹き付けるために上記送水管に供給される水が貯留された給水ボトルと、上記給水ボトル内を加圧すると共に上記送気管に供給される加圧空気を送り出すための外部送気ポンプとが配置され、上記給水ボトルから延出する給気管と給水管の先端に設けられた給気給水コネクタが、上記送気管と上記送水管の基端に設けられた給気給水コネクタ受けに着脱自在に接続されて、上記給気管と上記送気管及び上記給水管と上記送水管が各々接続される構成を備えた内視鏡の送気送水装置に対し、上記給気給水コネクタと上記給気給水コネクタ受けとの間に着脱自在に介挿接続される内視鏡の噴霧アダプタであって、
上記給気管内を通って送られてきた加圧空気を、上記給水管と上記送水管との接続部に流入させることにより、上記給水管内を通ってきた水と混合させて上記送水管に送り込むための噴霧用通気路が設けられて、上記観察窓に吹き付けられる水を空気混じりの噴霧状態にすることができることを特徴とする内視鏡の噴霧アダプタ。 An air supply pipe and a water supply pipe are provided in the endoscope, and outside the endoscope, a water supply bottle in which water supplied to the water supply pipe is stored in order to spray the observation window of the endoscope. And an external air supply pump for pressurizing the inside of the water supply bottle and sending out pressurized air supplied to the air supply pipe, and is provided at the air supply pipe extending from the water supply bottle and the tip of the water supply pipe An air supply / water supply connector is detachably connected to an air supply / water supply connector receiver provided at a base end of the air supply pipe and the water supply pipe, and the air supply pipe, the air supply pipe, the water supply pipe, and the water supply pipe are respectively An endoscope spray adapter that is detachably inserted between the air supply / water supply connector and the air supply / water supply connector receptacle for an endoscope air / water supply device having a connected structure. And
Pressurized air sent through the air supply pipe flows into the connection portion between the water supply pipe and the water supply pipe, and is mixed with the water passed through the water supply pipe and sent to the water supply pipe. A spray adapter for an endoscope, characterized in that a spray air passage is provided to allow the water sprayed to the observation window to be in a spray state mixed with air. 上記噴霧用通気路が、上記給水管と上記送水管とを接続する管の管壁に穿設された孔である請求項１記載の内視鏡の噴霧アダプタ。   The endoscope spray adapter according to claim 1, wherein the spraying air passage is a hole formed in a tube wall of a pipe connecting the water supply pipe and the water supply pipe. 上記噴霧用通気路が、上記給水管と上記送水管とを接続する管の管壁の外面に形成された溝である請求項１記載の内視鏡の噴霧アダプタ。   The spray adapter for an endoscope according to claim 1, wherein the spray air passage is a groove formed on an outer surface of a tube wall of a pipe connecting the water supply pipe and the water supply pipe. 上記噴霧用通気路を外部から開閉操作することができる通気路制御手段が設けられている請求項１ないし３のいずれかの項に記載の内視鏡の噴霧アダプタ。   The spray adapter for an endoscope according to any one of claims 1 to 3, further comprising a vent path control means capable of opening and closing the spray vent path from outside. 上記通気路制御手段により、上記噴霧用通気路の最小流路断面積を調整することができる請求項４記載の内視鏡の噴霧アダプタ。   The spray adapter for an endoscope according to claim 4, wherein a minimum flow passage cross-sectional area of the spraying air passage can be adjusted by the air passage control means.
JP2012138901A 2012-06-20 2012-06-20 Endoscope spray adapter Active JP5944239B2 (en)

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JPS61168328A (en) * 1985-01-21 1986-07-30 オリンパス光学工業株式会社 Endoscope apparatus
JP2627520B2 (en) * 1988-01-12 1997-07-09 旭光学工業株式会社 Endoscope air supply device
JP2980233B2 (en) * 1996-04-11 1999-11-22 オリンパス光学工業株式会社 Endoscope
JP2008295823A (en) * 2007-05-31 2008-12-11 Teruaki Rokuta Bronchoscope apparatus and spray device used by it

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