JP2001292958A - Endoscope - Google Patents

Endoscope

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Publication number
JP2001292958A
JP2001292958A JP2000112798A JP2000112798A JP2001292958A JP 2001292958 A JP2001292958 A JP 2001292958A JP 2000112798 A JP2000112798 A JP 2000112798A JP 2000112798 A JP2000112798 A JP 2000112798A JP 2001292958 A JP2001292958 A JP 2001292958A
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Prior art keywords
water
light guide
endoscope
provided
arranged
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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.)
Withdrawn
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JP2000112798A
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Japanese (ja)
Inventor
Kensho Takahashi
Junji Usami
準二 宇佐美
憲昭 高橋
Original Assignee
Asahi Optical Co Ltd
旭光学工業株式会社
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Abstract

PROBLEM TO BE SOLVED: To provide an endoscope in which a water injection tube, even if connected to the injection port of a sub-water conveying pipe, never obstructs the operation of the endoscope.
SOLUTION: The injection port 43 for injecting a liquid to the sub-water conveying pipe 16 is arranged on a light guide connector 4, and a check valve 44 for passing the liquid only in the injecting direction is continuously provided on the injection port 43.
COPYRIGHT: (C)2001,JPO

Description

【発明の詳細な説明】 DETAILED DESCRIPTION OF THE INVENTION

【0001】 [0001]

【発明の属する技術分野】この発明は、体腔内粘膜面に汚物等が付着して内視鏡観察に支障があるときに汚物等を洗い流すための副送水管路が設けられた内視鏡に関する。 TECHNICAL FIELD The present invention relates to an endoscope which auxiliary water conduit is provided for washing away the dirt or the like when there is trouble in the endoscope observation dirt or the like is attached to the body cavity mucosal surfaces .

【0002】 [0002]

【従来の技術】内視鏡観察中に、食物残渣等のような汚物が体腔内粘膜面に付着していて観察の支障があるような場合に、汚物を洗い流すために、先端開口を観察視野方向に向けた副送水管路が設けられている。 During BACKGROUND ART endoscopic observation, when dirt such as food residues and the like are such that there is difficulty in observing adhered to body cavity mucosal surfaces, in order to wash away dirt, observation field the tip opening secondary water supply conduit toward the direction.

【0003】従来、そのような副送水管路への注水は手動の注射器等を用いて行われていたので、注射器による注水操作を術者が行い易いように、副送水管路の注水口は、挿入部の基端に連結された操作部に配置されていた。 Conventionally, since the water injection into such sub-water supply conduit was done using manual syringe or the like, a water injection operation by the injector so that easy to perform surgeon, water injection port of the auxiliary water conduit , it was arranged on the operation part connected to the proximal end of the insertion portion.

【0004】 [0004]

【発明が解決しようとする課題】しかし、注射器による送水操作には相当の力が必要であり、それを内視鏡の術者自身が行うことは術者にとって大きな負担になると同時に、送水操作中に観察部位を見失ってしまうことも少なくない。 [0006] However, the water supply operation by syringe requires considerable force, at the same time it can surgeon own endoscope performs comes to heavy burden surgeon, during water operation that not a few that lose sight of the observation site.

【0005】そこで、副送水管路の注水口に注水チューブを接続して、操作部から離れた位置から洗浄液の注入を行うことができるようにすれば、送水操作をアシスタントが行ったり、或いは電動の送水装置等を用いることができ、術者の負担を軽減することができる。 [0005] Therefore, by connecting the water injection tube to water inlet of the auxiliary water supply channel, from away from the operation unit position to be able to perform the injection of the cleaning liquid, or perform water feeding operation assistant, or electric the water supply device or the like can be used, it is possible to reduce the burden of the operator.

【0006】しかし、副送水管路の注水口が従来のように操作部に配置されていると、内視鏡の操作部から注水チューブが延出する状態になるので、内視鏡の挿入動作に伴って頻繁に向きが変えられる操作部に注水チューブが絡みついたり術者の腕等にまとわりついて、内視鏡操作の妨げとなる。 However, when the water inlet of the auxiliary water conduit is arranged in the operation unit as in the prior art, since the water injection tube from the operation portion of the endoscope is in a state extending, in the endoscope insertion operation frequent orientation is clinging to such arm of the operator or entangled is water injection tube on the operation unit to be changed, which hinders the endoscope operation with the.

【0007】そこで本発明は、副送水管路の注水口に注水チューブを接続した状態でも、注水チューブが内視鏡操作の妨げとならない内視鏡を提供することを目的とする。 [0007] The present invention, even in a state of connecting the water injection tube to water inlet of the sub water feed conduit, and an object thereof is to provide an endoscope water injection tube does not interfere with the endoscope operation.

【0008】 [0008]

【課題を解決するための手段】上記の目的を達成するため、本発明の内視鏡は、先端開口を観察視野方向に向けた副送水管路が挿入部内に挿通配置されると共に、内部に照明用ライトガイドが挿通配置された可撓性のあるライトガイド連結管が挿入部の基端に連結された操作部から延出して設けられ、光源装置に接続されるライトガイドコネクタがライトガイド連結管の先端に設けられた内視鏡において、副送水管路に液を注入するための注水口をライトガイドコネクタに配置し、液を注入方向にのみ通過させる逆止弁を注水口に連設したものである。 To achieve the above object, according to an aspect of endoscope of the present invention, together with auxiliary water supply channel with its distal opening in the observation field of view direction are inserted and arranged in the insertion portion, the interior illuminating light guide light guide connecting pipe having flexibility, which is inserted and arranged is provided extending from linked operation portion at the proximal end of the insertion portion, a light guide connector connected to the light source device is a light guide connected in the endoscope provided at the tip of the tube, continuously arranged a water injection port for injecting the liquid into the sub-water supply conduit disposed in the light guide connector, a check valve for passing only the liquid in the injection direction water inlet one in which the.

【0009】なお、注水口から所定圧以上の圧力で注水が行われたときにのみ副送水管路を開通させる圧力弁を、副送水管路の途中に設けてもよい。 [0009] Incidentally, the pressure valve to only open the sub-water supply conduit when the water injection is carried out at a constant pressure or a pressure at the water inlet may be provided in the middle of the sub-water supply conduit.

【0010】 [0010]

【発明の実施の形態】図面を参照して本発明の実施例を説明する。 DESCRIPTION OF THE PREFERRED EMBODIMENTS With reference to the drawings illustrating the embodiment of the present invention. 図1は内視鏡を示しており、可撓管状の挿入部1の基端に連結された操作部2から、可撓管状のライトガイド連結管3が延出して設けられており、図示されていない光源装置(兼ビデオプロセッサ)に接続されるライトガイドコネクタ4がそのライトガイド連結管3の先端に取り付けられている。 Figure 1 shows an endoscope, the operation portion 2 which is connected to the proximal end of the insertion portion 1 of the flexible tubular is provided a light guide connection pipe 3 of the flexible tubular extends, it is shown light guide connector 4 connected to the non light source device (and the video processor) is attached to the tip of the light guide connecting pipe 3. 光源装置に差し込まれるライトガイドコネクタ4の突端部分には、ライトガイドファイバ40の入射端部が配置されている。 The tip portions of the light guide connector 4 to be inserted into the light source device, entering end of the light guide fiber 40 is disposed.

【0011】挿入部1の先端には、図示されていない観察窓の内側に対物光学系が配置され、その対物光学系による被写体の結像位置に固体撮像素子の撮像面(又はイメージガイドファイバの入射端面)が配置されていて、 [0011] The distal end of the insertion portion 1, the objective optical system is disposed inside the observation window, not shown, of the subject by the objective optical system imaging surface of the solid-state imaging device in the imaging position (or the image guide fiber incident end face) has been arranged,
内視鏡観察画像が電子信号として送出される。 Endoscopic observation image is transmitted as an electronic signal.

【0012】また、観察窓と並んで配置された照明窓(図示せず)の内側には、ライトガイドファイバ40の射出端面が配置されて、観察視野を照明することができるようになっている。 Further, the inside of along with observation window arranged illumination window (not shown) is disposed an injection end face of the light guide fiber 40, so that it is possible to illuminate the observation field .

【0013】観察窓の表面に向けて挿入部1の先端に突設された送気送水ノズル13には、挿入部1内に挿通配置された送気管11と送水管12の各々の先端が接続されており、送気送水ノズル13から観察窓の表面に向けて空気又は水を噴出させることができる。 [0013] gas-feeding and water-feeding nozzle 13 protruding from the distal end of the insertion portion 1 toward the surface of the observation window, each tip connection of the insertion portion inserting arranged air pipe 11 and water pipe 12 in one it is, thereby ejecting air or water toward the gas-feeding and water-feeding nozzle 13 to the surface of the observation window.

【0014】また、挿入部1の先端に開口する処置具挿通チャンネル兼吸引管14と副送水管16が挿入部1内に挿通配置されており、観察視野方向に向けられた副送水管16の先端開口からは、被写体に向けて水を噴出させることができる。 Further, a treatment instrument insertion channel and the suction pipe 14 opening to the distal end of the insertion portion 1 auxiliary water tubes 16 are inserted and arranged in the insertion portion 1, directed in the observation field of view direction of the auxiliary water tube 16 from the tip opening, it can be ejected water toward the subject.

【0015】送気管11と送水管12の基端は共に、操作部2に配置された送気送水操作装置21に接続されている。 The proximal end of the feed pipe 11 and water pipe 12 are both connected to the air and water supply operation device 21 disposed in the operation section 2. また、ライトガイドコネクタ4の側部に配置された送気送水口金41に接続された給気管31と給水管3 Also, the water supply pipe 3 and the air supply pipe 31 connected to the air water mouthpiece 41 which is arranged on the side of the light guide connector 4
2の先端が送気送水操作装置21に接続されている。 2 of the tip is connected to the air and water supply operation device 21.

【0016】その結果、外部の送気送水装置を送気送水口金41に接続して、送気送水操作装置21を操作することにより、送気送水ノズル13に対して選択的に空気又は水を送出することができる。 [0016] As a result, by connecting an external air water equipment air water mouthpiece 41, by operating the air and water supply operation device 21, selectively air or water against air and water supply nozzle 13 it is possible to transmit.

【0017】処置具挿通チャンネル兼吸引管14の基端は、操作部2の下部に突設された処置具挿入口部15に接続されると共に、分岐されて吸引操作装置22に接続されている。 The proximal end of the treatment instrument insertion channel and the suction tube 14 is connected to the treatment instrument insertion opening 15 projecting from the lower portion of the operation unit 2 is connected to a suction operating device 22 is branched . また、ライトガイドコネクタ4の側部に配置された吸引口金42に接続された吸引管33の先端が吸引操作装置22に接続されている。 The end of the suction pipe 33 is connected to a suction operating device 22 connected to the suction connector 42 located on the sides of the light guide connector 4.

【0018】その結果、外部の吸引装置を吸引口金42 [0018] As a result, sucking the external suction device mouthpiece 42
に接続して、吸引操作装置22を操作することにより、 Connect, by operating the sucking operation device 22,
処置具挿通チャンネル兼吸引管14の先端から任意に吸引を行うことができる。 It can perform any suction from the distal end of the treatment instrument insertion channel and the suction tube 14.

【0019】副送水管16は、ポリエチレン樹脂チューブ等のような可撓性チューブにより形成されていて、挿入部1内から操作部2及びライトガイド連結管3内を通り、基端がライトガイドコネクタ4内に達して、ライトガイドコネクタ4の側部に配置された注水口43に逆止弁44を介して接続されている。 The auxiliary water tube 16, a polyethylene resin tube or the like flexible is formed by a tube, such as through the operation unit 2 and the light guide connecting pipe 3 from the inside of the insertion portion 1, base ends light guide connector and reached 4, is connected via a check valve 44 to the water inlet 43 located on the sides of the light guide connector 4. 注水口43は、送気送水口金41及び吸引口金42に対して外観上明瞭に相違する形状に形成されている。 Water injection port 43 is formed in appearance clearly different shape with respect to air and water supply mouthpiece 41 and the suction mouthpiece 42.

【0020】図2は、その注水口43と逆止弁44の部分を示しており、注水口43には手動により外部から着脱自在なゴム栓431が取り付けられている。 [0020] Figure 2 shows a portion of the water injection port 43 and the check valve 44, movable rubber stopper 431 detachable from the outside is attached manually to the water inlet 43. 逆止弁4 Check valve 4
4内には、液通過孔441が側壁に穿設された筒状体4 Within 4, the tubular body 4 where the liquid passage hole 441 is bored in the side wall
42を外面から囲んで、ゴムキャップ状の逆止弁体44 42 surrounds the outer surface, a rubber cap-shaped check valve member 44
3が取り付けられている。 3 is attached.

【0021】このような構成により、ライトガイドコネクタ4に設けられた注水口43からゴム栓431を取り外し、図示されていない注水チューブ等を注水口43に取り付けて、洗浄液を注水口43から副送水管16に注入することにより、その洗浄液が挿入部1の先端の副送水管16の出口開口から観察視野内の被写体に向けて噴出され、液の逆流が逆止弁44によって阻止される。 [0021] With this configuration, remove the rubber stopper 431 from water inlet 43 provided in the light guide connector 4, by attaching the water injection tube or the like (not shown) to water inlet 43, feed by-cleaning liquid from the water inlet 43 by injecting the water pipe 16, the cleaning liquid is ejected toward the object in the observation field of view from the exit opening of the insertion portion 1 of the tip of the auxiliary water tube 16, backflow of the liquid is prevented by the check valve 44.

【0022】したがって、副送水管16の注水口43に注水チューブ等を接続した状態で内視鏡操作を行っても、注水チューブはライトガイドコネクタ4から延び出しているので内視鏡操作の妨げにならず、副送水管16 [0022] Thus, hindered even if the endoscope operation in a state of connecting the water injection tube or the like to the water inlet 43 of the auxiliary water tube 16, water injection tube endoscope operation since extending out from the light guide connector 4 not to, auxiliary water tube 16
が設けられていないタイプの内視鏡と同様の操作性を得ることができる。 It is possible to obtain the same operability and endoscope of the type is not provided.

【0023】図3は、本発明の第2の実施例の内視鏡を示しており、第1の実施例の逆止弁44に加えて、注水口43から所定圧以上の圧力で注水が行われたときにのみ副送水管16を開通させる圧力弁25を副送水管16 FIG. 3 shows the endoscope of the second embodiment of the present invention, in addition to the check valve 44 of the first embodiment, the water injection at a constant pressure or a pressure at the water inlet 43 the pressure valve 25 which only opens the auxiliary water tube 16 when made auxiliary water pipe 16
の途中(例えば、操作部2内)に配置したものである。 In the middle (e.g., in the operation portion 2) is obtained by disposed.
このようにすることにより、一定圧以上でしか送水されなくなるので、送水が始まる時と終わる時のリーク水がなくなる。 By doing so, since no longer water only at a constant pressure or more, there is no leak water when finished with when the water begins.

【0024】図4及び図5はその圧力弁25の断面を略示しており、副送水管16の上流側と下流側の差圧が一定以上になると、図4に示されるように、ゴム又はスプリング等によって形成された弾性変形部材251が弾性変形して圧力弁25が開いた状態になり、上下差圧が所定圧を下回る状態では、図5に示されるように、弾性変形部材251の弾性によって圧力弁25が閉じた状態になる。 [0024] Figure 4 and Figure 5 shows substantially the cross section of the pressure valve 25, the differential pressure between the upstream side and downstream side of the auxiliary water pipe 16 becomes more than a certain, as shown in FIG. 4, a rubber or elastically deformable members 251 which are formed by a spring or the like is ready to pressure valve 25 is elastically deformed open, in the state in which the upper and lower pressure difference falls below a predetermined pressure, as shown in FIG. 5, the elasticity of the elastic deformation member 251 a state in which the pressure valve 25 is closed by.

【0025】 [0025]

【発明の効果】本発明によれば、副送水管路に液を注入するための注水口をライトガイドコネクタに配置したことにより、注水口に注水チューブ等を接続した状態で内視鏡操作を行っても注水チューブが内視鏡操作の妨げとならず、副送水管路が設けられていない内視鏡と同様の優れた操作性を得ることができる。 According to the present invention, by disposing the injection port for injecting the liquid into the sub-water supply conduit to the light guide connector, the endoscope operation in a state of connecting the water injection tube or the like to the water inlet performed not even interfere with the endoscope operation water injection tube, it is possible to obtain excellent operability similar to an endoscope auxiliary water conduit is not provided.

【図面の簡単な説明】 BRIEF DESCRIPTION OF THE DRAWINGS

【図1】本発明の第1の実施例の内視鏡の全体構成図である。 1 is an overall configuration view of an endoscope of a first embodiment of the present invention.

【図2】本発明の第1の実施例の注水口と逆止弁部分の断面図である。 2 is a cross-sectional view of the water inlet and the check valve portion of the first embodiment of the present invention.

【図3】本発明の第2の実施例の内視鏡の全体構成図である。 Figure 3 is an overall configuration view of an endoscope of a second embodiment of the present invention.

【図4】本発明の第2の実施例の圧力弁の開状態の断面略示図である。 4 is a schematic cross section of the open state of the pressure valve of the second embodiment of the present invention.

【図5】本発明の第2の実施例の圧力弁の閉状態の断面略示図である。 5 is a schematic cross section of the closed state of the pressure valve of the second embodiment of the present invention.

【符号の説明】 DESCRIPTION OF SYMBOLS

1 挿入部 2 操作部 3 ライトガイド連結管 4 ライトガイドコネクタ 16 副送水管 25 圧力弁 43 注水口 44 逆止弁 1 insertion portion 2 operation unit 3 light guide connecting pipe 4 light guide connector 16 auxiliary water pipe 25 the pressure valve 43 water inlet 44 check valve

フロントページの続き Fターム(参考) 2H040 CA09 CA11 CA12 CA22 CA27 DA03 DA15 DA18 DA21 DA57 GA02 4C061 FF42 HH04 JJ06 Front page of the continued F-term (reference) 2H040 CA09 CA11 CA12 CA22 CA27 DA03 DA15 DA18 DA21 DA57 GA02 4C061 FF42 HH04 JJ06

Claims (2)

    【特許請求の範囲】 [The claims]
  1. 【請求項1】先端開口を観察視野方向に向けた副送水管路が挿入部内に挿通配置されると共に、内部に照明用ライトガイドが挿通配置された可撓性のあるライトガイド連結管が上記挿入部の基端に連結された操作部から延出して設けられ、光源装置に接続されるライトガイドコネクタが上記ライトガイド連結管の先端に設けられた内視鏡において、 上記副送水管路に液を注入するための注水口を上記ライトガイドコネクタに配置し、液を注入方向にのみ通過させる逆止弁を上記注水口に連設したことを特徴とする内視鏡。 1. A with sub water supply conduit toward the distal opening in the observation field of view direction are inserted and arranged in the insertion portion, the light guide connecting pipe with a flexible illumination light guide is inserted and arranged inside the extend provided of linked operation portion at the proximal end of the insertion portion, the endoscope light guide connector that is connected to the light source device is provided at the distal end of the light guide connecting pipe, to the auxiliary water supply channel endoscopes the water injection port for injecting the liquid is arranged in the light guide connector, characterized in that a check valve for passing only the liquid in the injection direction is continuously provided to the water inlet.
  2. 【請求項2】上記注水口から所定圧以上の圧力で注水が行われたときにのみ上記副送水管路を開通させる圧力弁が、上記副送水管路の途中に設けられている請求項1記載の内視鏡。 Wherein said at constant pressure above the pressure at the water inlet only when the water injection is carried out a pressure valve for opening the auxiliary water-supply pipe is, the auxiliary water tube claims is provided in the middle of the path 1 the endoscope according.
JP2000112798A 2000-04-14 2000-04-14 Endoscope Withdrawn JP2001292958A (en)

Priority Applications (1)

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Country Link
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8016753B2 (en) 2005-06-09 2011-09-13 Hoya Corporation Endoscope
US9066700B2 (en) 2005-12-09 2015-06-30 Aircraft Medical Limited Laryngoscope blade

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8016753B2 (en) 2005-06-09 2011-09-13 Hoya Corporation Endoscope
US9066700B2 (en) 2005-12-09 2015-06-30 Aircraft Medical Limited Laryngoscope blade
US9693677B2 (en) 2005-12-09 2017-07-04 Aircraft Medical Limited Laryngoscope blade

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