JPH07289501A - Endoscopic device - Google Patents

Endoscopic device

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Publication number
JPH07289501A
JPH07289501A JP6083205A JP8320594A JPH07289501A JP H07289501 A JPH07289501 A JP H07289501A JP 6083205 A JP6083205 A JP 6083205A JP 8320594 A JP8320594 A JP 8320594A JP H07289501 A JPH07289501 A JP H07289501A
Authority
JP
Japan
Prior art keywords
endoscope
tube
flange
suction
tip
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP6083205A
Other languages
Japanese (ja)
Other versions
JP3465953B2 (en
Inventor
Takao Yamaguchi
貴夫 山口
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Olympus Corp
Original Assignee
Olympus Optical Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Olympus Optical Co Ltd filed Critical Olympus Optical Co Ltd
Priority to JP08320594A priority Critical patent/JP3465953B2/en
Priority to US08/420,489 priority patent/US5697888A/en
Publication of JPH07289501A publication Critical patent/JPH07289501A/en
Application granted granted Critical
Publication of JP3465953B2 publication Critical patent/JP3465953B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

PURPOSE:To shorten the time for endoscopic operation by easily removing fogging in the visual field of an endoscope and to inexpensively produce the endoscope by simplifying the structure over the entire part. CONSTITUTION:An external body 3 of an endoscope body 2 is provided with a first flow passage and second flow passage which are independent and communicate an operating part 5 side of this endoscope body 2 with the front end side of an insertion part. Liquid is supplied to the front end side of the endoscope body 2 through this first flow passage and is sucked to remove the foreign matter on the front end side of the endoscope body 2. Gas is blown to the front end side of the endoscope body 2 through this second flow passage to prevent the fogging.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【産業上の利用分野】本発明は体腔内等で観察や処置を
行うための内視鏡装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an endoscope device for observing or treating inside a body cavity or the like.

【０００２】[0002]

【従来の技術】現在、医療等の様々な分野において体腔
内等で観察や処置を行うための多種、多様な内視鏡が用
いられている。このような内視鏡は挿入部や先端部が汚
れ易い環境内で使用されるので、良好な内視鏡の視野を
得るために内視鏡の挿入部の先端部に設けられている観
察窓は常に清浄に保つ必要がある。2. Description of the Related Art At present, a wide variety of endoscopes are used in various fields such as medical treatment for observing and treating inside a body cavity. Since such an endoscope is used in an environment in which the insertion part and the tip part are easily contaminated, an observation window provided at the tip part of the insertion part of the endoscope in order to obtain a good endoscope field of view. Must always be kept clean.

【０００３】このため、従来の内視鏡では例えば、実公
平５−１１８４１号公報に示されているような硬性鏡の
洗浄シース、或いは特開平５−１０３７４９号公報に示
されているような軟性鏡用の洗浄ノズルを設け、内視鏡
の挿入部の先端部に配設された観察窓にこの洗浄ノズル
から洗浄水を吹き付けて観察窓に付着する水滴の除去
や、汚れの除去を行っている。Therefore, in a conventional endoscope, for example, a cleaning sheath for a rigid endoscope as disclosed in Japanese Utility Model Publication No. 5-11841 or a soft sheath as disclosed in Japanese Patent Application Laid-Open No. 5-103749. A cleaning nozzle for the mirror is provided, and cleaning water is sprayed from the cleaning nozzle to the observation window arranged at the tip of the insertion part of the endoscope to remove water droplets adhering to the observation window and stains. There is.

【０００４】また、内視鏡を人体内に挿入する際には内
視鏡本体と人体内の温湿度の差により、内視鏡の挿入部
の先端部が結露し、内視鏡の視野が妨げられる問題があ
る。そこで、例えば実開平２−１３１７１４号公報には
内視鏡の挿入部の先端部に配設された先端カバーガラス
に親水潤滑処理層（防曇処理）を設け、先端カバーガラ
スの曇対策を行なう構成のものが示されている。Further, when the endoscope is inserted into the human body, the difference in temperature and humidity between the endoscope body and the human body causes dew condensation on the distal end portion of the insertion portion of the endoscope, so that the field of view of the endoscope is changed. There are problems that are hindered. Therefore, for example, in Japanese Utility Model Laid-Open No. 2-131714, a hydrophilic lubrication treatment layer (anti-fog treatment) is provided on the tip cover glass disposed at the tip of the insertion portion of the endoscope to take measures against fog on the tip cover glass. The configuration is shown.

【０００５】また、特開昭６２−８３２４１号公報には
送水源等に設けられた加温手段により加温された温水を
内視鏡の挿入部の先端部に配設された観察窓に吹き付け
ることにより、挿入部の先端部の観察窓に付着する水
滴、汚れの除去と同時に、観察窓の曇りを除去する装置
が示されている。Further, in Japanese Patent Laid-Open No. 62-83241, hot water heated by heating means provided in a water supply source or the like is sprayed onto an observation window provided at the tip of the insertion portion of the endoscope. As a result, there is disclosed a device that removes water droplets and stains attached to the observation window at the distal end of the insertion portion and at the same time removes fogging in the observation window.

【０００６】さらに、特公昭６２−３０７６６号公報に
は対物レンズ等の光学レンズ内に熱線等の加熱手段を組
み込み、この加熱手段によりレンズを加熱し、対物レン
ズの曇りを防止するものが示されている。Further, Japanese Patent Publication No. 62-30766 discloses that a heating means such as a heat ray is incorporated in an optical lens such as an objective lens and the lens is heated by this heating means to prevent fogging of the objective lens. ing.

【０００７】[0007]

【発明が解決しようとする課題】ところで、上記実公平
５−１１８４１号公報、特開平５−１０３７４９号公報
では内視鏡の挿入部が人体内に挿入された状態で、内視
鏡の挿入部の先端面に室温の生理食塩水を送水した際
に、人体内と、内視鏡の挿入部の先端面に温湿度差を生
じ、内視鏡の視野が曇ることがある。By the way, in Japanese Utility Model Publication No. 5-11841 and Japanese Unexamined Patent Publication No. 5-103749, the insertion part of the endoscope is inserted in the human body. When physiological saline at room temperature is fed to the distal end surface of the endoscope, a difference in temperature and humidity may occur between the human body and the distal end surface of the insertion portion of the endoscope, and the field of view of the endoscope may become cloudy.

【０００８】この場合には内視鏡の視野の曇りが自然に
除去されるまで待つ必要があるので、手術時間が長くな
る問題がある。また、一旦、内視鏡を患者の体から抜き
出して、内視鏡の視野が曇りを除去する場合にはその作
業が面倒なものとなり、術者および患者の負担が増大す
る問題がある。In this case, since it is necessary to wait until the cloudiness of the field of view of the endoscope is naturally removed, there is a problem that the operation time becomes long. Further, when the endoscope is once pulled out from the patient's body and the clouding of the field of view of the endoscope is removed, the work becomes troublesome and there is a problem that the burden on the operator and the patient increases.

【０００９】なお、内視鏡の視野が曇りは、特開昭６２
−８３２４１号公報のように送水源を温めることにより
解決されるが、単に送水源を温めるだけでは、送水源
と、内視鏡の挿入部の先端面に配設された洗浄ノズルと
の間の送水管路内を流れる途中で、温水が室温により冷
え易い問題がある。ここで、洗浄ノズルから噴射される
洗浄水の温度が適正温度よりも低下した場合には内視鏡
の視野の曇りを除去することができないおそれがある。It should be noted that when the field of view of the endoscope is cloudy, it is disclosed in
The problem can be solved by warming the water supply source as in Japanese Patent Publication No.-83241. However, by simply warming the water supply source, the water supply source and the cleaning nozzle disposed on the distal end surface of the insertion portion of the endoscope are provided. There is a problem that hot water is easily cooled to room temperature while flowing through the water supply pipeline. Here, when the temperature of the washing water sprayed from the washing nozzle is lower than the appropriate temperature, it may not be possible to remove the cloudiness of the field of view of the endoscope.

【００１０】また、送水源から送水される洗浄水の温度
を比較的高い温度に設定した場合には適正温度よりも高
温度の温水が内視鏡の送水管路を通して体内に導入さ
れ、この洗浄水の温水の熱により、生体組織に熱損傷を
与えるおそれがある。そのため、内視鏡の送水管路を通
して体内に導入され、洗浄水の温度を常に体温とほぼ同
じ温度に保つ保温装置を設ける別個に必要がある。Further, when the temperature of the washing water sent from the water sending source is set to a relatively high temperature, hot water having a temperature higher than the proper temperature is introduced into the body through the water feeding conduit of the endoscope, and this washing is performed. The heat of warm water may cause thermal damage to living tissues. Therefore, it is necessary to separately provide a heat retaining device that is introduced into the body through the water supply conduit of the endoscope and always keeps the temperature of the washing water at substantially the same temperature as the body temperature.

【００１１】しかしながら、保温装置を設けた場合には
高価なものとなる問題があるうえ、内視鏡の送水管路を
形成する送水チューブ等による熱損失もあるために、温
度コントロールが難しい問題がある。However, in the case where the heat insulating device is provided, there is a problem that the temperature becomes expensive and there is also a heat loss due to a water supply tube or the like that forms a water supply conduit of the endoscope, so that there is a problem that temperature control is difficult. is there.

【００１２】また、実開平２−１３１７１４号公報の内
視鏡の先端カバーガラスの曇対策では、内視鏡を繰り返
し使用した際に、滅菌処理や、消耗により、先端カバー
ガラスに施された防曇処理用の親水潤滑処理層の効果が
低下するおそれがある。Further, in the countermeasure against fogging of the tip cover glass of an endoscope disclosed in Japanese Utility Model Laid-Open No. 2-131714, when the endoscope is repeatedly used, sterilization treatment and wear prevent it from being applied to the tip cover glass. There is a possibility that the effect of the hydrophilic lubricating treatment layer for the fog treatment may be reduced.

【００１３】さらに、特公昭６２−３０７６６号公報で
は、対物レンズ等の光学レンズ内に熱線等の加熱手段を
組み込む必要があるので、曇り防止装置のために、内視
鏡全体の構造が複雑になり、装置全体が高価なものとな
る問題がある。Further, in Japanese Patent Publication No. 62-30766, it is necessary to incorporate a heating means such as a heat ray into an optical lens such as an objective lens. Therefore, the structure of the entire endoscope is complicated because of the fogging preventing device. Therefore, there is a problem that the entire apparatus becomes expensive.

【００１４】本発明は上記事情に着目してなされたもの
で、その目的は、簡単に内視鏡の視野の曇りを除去する
ことができ、内視鏡手術時間を短縮することができると
ともに、内視鏡全体の構造を単純化することができる安
価な内視鏡装置を提供することにある。The present invention has been made in view of the above circumstances, and an object thereof is to easily remove fog in the field of view of an endoscope and shorten the time for endoscopic surgery. An object of the present invention is to provide an inexpensive endoscope apparatus that can simplify the structure of the entire endoscope.

【００１５】[0015]

【課題を解決するための手段】内視鏡本体に外装される
外装体を設け、この外装体に前記内視鏡本体の操作部側
と先端部側との間を連通する独立した複数の流路を備え
た流体流通手段を設けるとともに、この流体流通手段の
一部の流路を通して前記内視鏡本体の先端部側に液体を
供給し、かつ前記内視鏡本体の先端部側を吸引する手段
および前記流体流通手段の他の流路を通して前記内視鏡
本体の先端部側に気体を吹き付ける送気手段を設けたも
のである。An external body to be installed on an endoscope main body is provided, and a plurality of independent streams that communicate between the operation unit side and the distal end side of the endoscope main body are provided on the external body. A fluid circulating means having a passage is provided, liquid is supplied to the distal end side of the endoscope main body through a part of the flow passage of the fluid circulating means, and the distal end side of the endoscope main body is sucked. An air supply unit for blowing gas is provided on the distal end side of the endoscope main body through another means and the other flow path of the fluid circulation unit.

【００１６】[0016]

【作用】内視鏡本体に外装される外装体の流体流通手段
の独立した一部の流路から内視鏡本体の先端部側に流体
を供給し、かつ吸引することにより、内視鏡本体の先端
部側の異物を除去して洗浄するとともに、流体流通手段
の独立した他の流路から乾燥した気体を吹き付けて内視
鏡本体の先端部側の曇りを除去するようにしたものであ
る。The endoscope main body is constructed by supplying and sucking fluid to the distal end side of the endoscope main body from some independent flow paths of the fluid circulating means of the exterior body that is externally mounted on the endoscope main body. The foreign matter on the tip side of the endoscope is removed and cleaned, and a dry gas is blown from another channel independent of the fluid circulation means to remove the fog on the tip side of the endoscope body. .

【００１７】[0017]

【実施例】以下、本発明の第１の実施例を図１乃至図６
（Ｄ）を参照して説明する。図１は内視鏡装置１の要部
の概略構成を示すものである。この内視鏡装置１には内
視鏡本体２と、この内視鏡本体２に外装される外装体３
とが設けられている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIGS.
This will be described with reference to (D). FIG. 1 shows a schematic configuration of a main part of the endoscope apparatus 1. The endoscope device 1 includes an endoscope body 2 and an exterior body 3 that is exteriorly mounted on the endoscope body 2.
And are provided.

【００１８】ここで、内視鏡本体２には図２に示すよう
に体内に挿入される挿入部４と、この挿入部４の基端部
に連結された手元側の操作部５とが設けられている。そ
して、この操作部５には接眼部６およびライトガイドコ
ネクタ３４が設けられている。Here, as shown in FIG. 2, the endoscope body 2 is provided with an insertion portion 4 to be inserted into the body and an operation portion 5 on the proximal side connected to the base end portion of the insertion portion 4. Has been. The operation section 5 is provided with an eyepiece section 6 and a light guide connector 34.

【００１９】また、外装体３には内視鏡本体２の挿入部
４に装着される挿入部装着部１１と、この内視鏡本体２
の操作部５に装着される操作部装着部１２とが設けられ
ている。さらに、挿入部装着部１１には内視鏡本体２の
挿入部４を覆う内管１３と、この内管１３を覆う外管１
４とが設けられている。The exterior body 3 has an insertion portion mounting portion 11 to be mounted on the insertion portion 4 of the endoscope main body 2 and the endoscope main body 2
The operation unit attachment unit 12 attached to the operation unit 5 is provided. Further, the insertion portion mounting portion 11 includes an inner tube 13 that covers the insertion portion 4 of the endoscope body 2 and an outer tube 1 that covers the inner tube 13.
And 4 are provided.

【００２０】ここで、内管１３は内視鏡本体２の挿入部
全長とほぼ同じ長さに設定され、その内径は内視鏡１の
外径よりも若干大きく設定されている。また、外管１４
は内管１３とほぼ同じ長さに設定され、その内径は内管
１３の外径よりも若干大きく設定されている。そして、
内視鏡本体２の挿入部４と内管１３との間には図３に示
すように適度な隙間があり、その隙間によって第１の流
路１５が形成されるとともに、内管１３と外管１４との
間には同様に適度な隙間があり、その隙間によって第２
の流路１６が形成されている。なお、これらの第１の流
路１５および第２の流路１６によって内視鏡本体２の操
作部５側と挿入部４の先端部側との間を連通する流体流
通手段を構成する独立した複数の流路が形成されてい
る。Here, the inner tube 13 is set to have substantially the same length as the entire length of the insertion portion of the endoscope body 2, and its inner diameter is set to be slightly larger than the outer diameter of the endoscope 1. Also, the outer tube 14
Is set to have substantially the same length as the inner pipe 13, and its inner diameter is set to be slightly larger than the outer diameter of the inner pipe 13. And
As shown in FIG. 3, there is a proper gap between the insertion portion 4 of the endoscope body 2 and the inner pipe 13, and the first flow path 15 is formed by the gap, and the inner pipe 13 and the outer pipe 13 are There is also a suitable gap between the pipe 14 and the second gap,
The channel 16 is formed. In addition, the first flow path 15 and the second flow path 16 independently constitute a fluid flow means for communicating between the operation section 5 side of the endoscope body 2 and the distal end side of the insertion section 4. A plurality of flow paths are formed.

【００２１】さらに、内管１３の先端部には内側に略直
角に折曲げられた略リング状の内フランジ１７が形成さ
れている。同様に、外管１４の先端部には内側に略直角
に折曲げられた略リング状の外フランジ１８が形成され
ている。Further, a substantially ring-shaped inner flange 17 is formed at the tip of the inner tube 13 and is bent inward at a substantially right angle. Similarly, a substantially ring-shaped outer flange 18 bent inward at a substantially right angle is formed at the tip of the outer tube 14.

【００２２】また、内フランジ１７の内面（後端面）に
は少なくとも１つの窪み１９、本実施例では４つの窪み
１９が設けられている。そして、内視鏡本体２の挿入部
４の先端面と内フランジ１７の内面との間を密着させる
ことにより、これらの窪み１９によって第１の流路１５
に連通する噴射口用または吸引口用の開口部１９ａが形
成されている。Further, the inner surface (rear end surface) of the inner flange 17 is provided with at least one recess 19, and in this embodiment, four recesses 19. Then, the distal end surface of the insertion portion 4 of the endoscope main body 2 and the inner surface of the inner flange 17 are brought into close contact with each other, and thus the first flow path 15 is formed by these recesses 19.
An opening 19a for an injection port or a suction port that communicates with is formed.

【００２３】さらに、内フランジ１７の外面（先端面）
と外フランジ１８の内面（後端面）との間に適度な隙間
が開くように内管１３および外管１４の長さが選択さ
れ、その隙間によって第２の流路１６に連通する送気口
２０が形成されている。Further, the outer surface (tip surface) of the inner flange 17
The lengths of the inner tube 13 and the outer tube 14 are selected so that an appropriate gap is opened between the inner surface (rear end surface) of the outer flange 18 and the outer flange 18, and the air supply port communicating with the second flow path 16 by the gap. 20 are formed.

【００２４】また、外装体３の操作部装着部１２には内
管１３の基端部外周面に連結された略リング状の内管連
結部２１と、外管１４の基端部外周面に連結された略リ
ング状の外管連結部２２とが設けられている。Further, in the operation portion mounting portion 12 of the outer casing 3, a substantially ring-shaped inner pipe connecting portion 21 connected to the outer peripheral surface of the base end portion of the inner pipe 13 and an outer peripheral surface of the base end portion of the outer pipe 14 are provided. A substantially ring-shaped outer pipe connecting portion 22 that is connected is provided.

【００２５】ここで、内管連結部２１の後端部には内視
鏡本体２の操作部５と挿入部４との間に配置された段差
部５ａが挿入される連結穴２１ａが形成されている。そ
して、この連結穴２１ａの内周面には内視鏡本体２との
気密を保つシール部材２３が固定されている。このシー
ル部材２３は例えばシリコンなどの弾性材料で略円環状
に成形されている。さらに、このシール部材２３の内周
面の一部には略半円状の凸部が全周に亙り突設されてい
る。そして、このシール部材２３の外周部位は連結穴２
１ａの内周面に接着もしくはインサート成形等で気密に
取付けられている。Here, a connection hole 21a is formed at the rear end of the inner tube connection portion 21 for inserting the step portion 5a arranged between the operation portion 5 of the endoscope body 2 and the insertion portion 4. ing. A seal member 23 that keeps airtightness with the endoscope body 2 is fixed to the inner peripheral surface of the connecting hole 21a. The seal member 23 is formed of an elastic material such as silicon into a substantially annular shape. Further, a substantially semicircular convex portion is provided on a part of the inner peripheral surface of the seal member 23 so as to project over the entire circumference. The outer peripheral portion of the seal member 23 is connected to the connecting hole 2
It is airtightly attached to the inner peripheral surface of 1a by adhesion or insert molding.

【００２６】また、内管連結部２１には図２中で上部側
に配置された送気口２５と、同図中で下部側に並設され
た送液口２６、吸引口２７とが形成されている。ここ
で、送気口２５の外端部には送気口金２８の一端部、送
液口２６の外端部には送液口金２９の一端部、吸引口２
７の外端部には吸引口金３０の一端部がそれぞれ取付け
られている。なお、送気口２５は図２中で後方側斜め上
向きに形成され、送気口金２８は後方側斜め上向きに向
けた状態で配置されているとともに、送液口２６、吸引
口２７は同図中で後方側斜め下向きに形成され、送液口
金２９および吸引口金３０は後方側斜め上向きに向けた
状態で配置されている。In the inner pipe connecting portion 21, an air supply port 25 arranged on the upper side in FIG. 2 and a liquid supply port 26 and a suction port 27 arranged in parallel on the lower side in FIG. 2 are formed. Has been done. Here, the outer end of the air supply port 25 has one end of the air supply mouthpiece 28, the outer end of the liquid supply opening 26 has one end of the liquid supply mouthpiece 29, and the suction port 2
One end of a suction mouthpiece 30 is attached to the outer end of each of 7. In addition, the air supply port 25 is formed obliquely rearward and upward in FIG. 2, the air supply mouthpiece 28 is arranged in a state of being obliquely upward rearward, and the liquid supply port 26 and the suction port 27 are shown in FIG. It is formed obliquely downward to the rear side, and the liquid supply mouthpiece 29 and the suction mouthpiece 30 are arranged so as to face obliquely upward to the rear side.

【００２７】さらに、内管連結部２１の内周面側には切
り欠き部３１が形成されており、この切り欠き部３１を
介して送液口２６の内端部および吸引口２７の内端部と
第１の流路１５との間が連通されている。Further, a notch 31 is formed on the inner peripheral surface side of the inner pipe connecting portion 21, and the inner end of the liquid feed port 26 and the inner end of the suction port 27 are formed through the notch 31. The part and the first flow path 15 are communicated with each other.

【００２８】また、外管連結部２２の後端面には内管連
結部２１との気密を保つシール部材２４が固定されてい
る。このシール部材２４は例えばシリコンなどの弾性材
料で略円環状に成形されている。さらに、このシール部
材２４の一側面の一部には略半円状の凸部が全周に亙り
突設されている。そして、このシール部材２４の他側面
は外管連結部２２の後端面に接着もしくはインサート成
形等で気密に取付けられている。A seal member 24 for keeping airtightness with the inner pipe connecting portion 21 is fixed to the rear end surface of the outer pipe connecting portion 22. The seal member 24 is formed of an elastic material such as silicon into a substantially annular shape. Further, a substantially semicircular convex portion is provided on a part of one side surface of the seal member 24 so as to project over the entire circumference. The other side surface of the seal member 24 is airtightly attached to the rear end surface of the outer pipe connecting portion 22 by adhesion or insert molding.

【００２９】また、外管連結部２２の内周面側には内管
連結部２１の送気口２５の内端部と第２の流路１６との
間を連通する連通路３２が形成されている。さらに、外
管連結部２２の外周面には固定バンド３３を取付ける茸
状の固定バンド取付け部２２ａと、略Ｌ字形のフック２
２ｂとが設けられている。Further, a communication passage 32 is formed on the inner peripheral surface side of the outer pipe connecting portion 22 so as to connect the inner end of the air supply port 25 of the inner pipe connecting portion 21 and the second flow passage 16. ing. Further, on the outer peripheral surface of the outer pipe connecting portion 22, a mushroom-shaped fixing band attaching portion 22a for attaching the fixing band 33 and a hook 2 having a substantially L-shape.
2b are provided.

【００３０】ここで、固定バンド３３は例えばシリコン
などの弾性材料によって板状または紐状に成形されてい
る。さらに、この固定バンド３３には図４に示すように
中央部に適当な長さだけくびれた細幅部が形成されてい
る。また、この固定バンド３３の一端部にはバンド固定
孔３３ａが形成されているとともに、他端部には複数の
バンド着脱孔３３ｂが形成され、さらにこの他端の末端
付近にはすべり止め３３ｃが突設されている。Here, the fixing band 33 is formed in a plate shape or a string shape from an elastic material such as silicon. Further, as shown in FIG. 4, the fixing band 33 is formed with a narrow width portion which is constricted in the central portion by an appropriate length. A band fixing hole 33a is formed at one end of the fixing band 33, a plurality of band attaching / detaching holes 33b is formed at the other end, and a slip stopper 33c is formed near the end of the other end. It is projected.

【００３１】そして、この固定バンド３３のバンド固定
孔３３ａが外管連結部２２の固定バンド取付け部２２ａ
に嵌め込まれて取付けられた状態で、この固定バンド３
３の中央部の細幅部が内視鏡本体２の操作部５のライト
ガイドコネクタ３４に巻き付けられたのち、この固定バ
ンド３３の他端部のいずれか１つのバンド着脱孔３３ｂ
が各種内視鏡に合わせて選択され、外管連結部２２のフ
ック２２ｂに引っ掛けて係止されることにより、外装体
３が内視鏡本体２に固定されるようになっている。The band fixing hole 33a of the fixing band 33 is fixed to the fixing band attaching portion 22a of the outer pipe connecting portion 22.
With the fixed band 3 attached to the
After the narrow portion of the central portion of 3 is wound around the light guide connector 34 of the operation portion 5 of the endoscope body 2, one of the other end portions of the fixing band 33 has a band attaching / detaching hole 33b.
Is selected according to various endoscopes, and the outer casing 3 is fixed to the endoscope body 2 by being hooked on the hook 22b of the outer tube connecting portion 22 and locked.

【００３２】また、送液口金２９には第１の送液チュー
ブ３５ａの一端部が連結され、吸引口金３０には第１の
吸引チューブ３５ｂの一端部が連結されている。これら
の第１の送液チューブ３５ａおよび第１の吸引チューブ
３５ｂの途中には内視鏡本体２の操作部５に着脱自在に
取付けられた弁装置３６Ｖが介設されている。Further, one end of the first liquid supply tube 35a is connected to the liquid supply mouthpiece 29, and one end of the first suction tube 35b is connected to the suction mouthpiece 30. A valve device 36V that is detachably attached to the operation portion 5 of the endoscope body 2 is interposed in the middle of the first liquid supply tube 35a and the first suction tube 35b.

【００３３】さらに、第１の送液チューブ３５ａの他端
部はコネクタ３６ａの一端部、第１の吸引チューブ３５
ｂの他端部はコネクタ３６ｂの一端部にそれぞれ接続さ
れている。Further, the other end of the first liquid feeding tube 35a is connected to one end of the connector 36a and the first suction tube 35.
The other end of b is connected to one end of the connector 36b.

【００３４】また、コネクタ３６ａの他端部には第２の
送液チューブ３７ａの一端部が接続されている。この第
２の送液チューブ３７ａの他端部は送液コネクタ３８を
介して送水源３９に接続されている。Further, one end of the second liquid supply tube 37a is connected to the other end of the connector 36a. The other end of the second liquid supply tube 37a is connected to a water supply source 39 via a liquid supply connector 38.

【００３５】さらに、コネクタ３６ｂの他端部には第２
の吸引チューブ３７ｂの一端部が接続されている。この
第２の吸引チューブ３７ｂの他端部は吸引コネクタ４０
を介して吸引源４２側の連結チューブ４１に接続されて
いる。なお、送気口金２８には送気源４４より延びる送
気チューブ４３が接続されている。Further, the second end is provided at the other end of the connector 36b.
One end of the suction tube 37b is connected. The other end of the second suction tube 37b has a suction connector 40.
Is connected to the connection tube 41 on the suction source 42 side. An air supply tube 43 extending from an air supply source 44 is connected to the air supply base 28.

【００３６】そして、内視鏡本体２の挿入部４と内管１
３との間の第１の流路１５によって送液用流路および吸
引用流路が形成され、内視鏡本体２の先端部側に流体を
供給し、かつ内視鏡本体２の先端部側を吸引して内視鏡
本体２の先端部側の異物を除去する異物除去手段が形成
されるとともに、同様に、内管１３と外管１４との間の
第２の流路１６によって第１の流路１５と独立した送気
用流路が形成され、内視鏡本体２の先端部側に気体を吹
き付けて内視鏡本体２の先端部側の曇りを防止する曇り
防止手段が形成されている。Then, the insertion portion 4 of the endoscope body 2 and the inner tube 1
The first flow path 15 between the first and second flow paths forms a liquid supply flow path and a suction flow path, supplies the fluid to the distal end side of the endoscope main body 2, and also supplies the distal end of the endoscope main body 2. Foreign matter removing means for sucking the side to remove the foreign matter on the distal end side of the endoscope main body 2 is formed, and similarly, the second flow path 16 between the inner tube 13 and the outer tube 14 forms the first foreign matter removing means. A flow passage for air supply independent of the first flow passage 15 is formed, and a fog preventing means for blowing gas to the tip end side of the endoscope body 2 to prevent fog on the tip end side of the endoscope body 2 is formed. Has been done.

【００３７】また、弁装置３６Ｖには図５に示すように
弁装置本体５１の側面には内視鏡本体２の一部（例えば
接眼部６）に着脱可能に連結される略Ｃ字状の連結部５
２が設けられている。このＣ字状の連結部５２の内径は
内視鏡本体２の操作部５の外径と略同径に設定されてい
る。この場合、Ｃ字状の連結部５２の開口部（着脱口）
５２ａの幅寸法は内視鏡本体２の接眼部６の外径寸法よ
りも小さく絞られた状態に設定されている。As shown in FIG. 5, the valve device 36V has a substantially C-shape which is detachably connected to a part of the endoscope main body 2 (for example, the eyepiece 6) on the side surface of the valve device main body 51. Connection part 5
Two are provided. The inner diameter of the C-shaped connecting portion 52 is set to be substantially the same as the outer diameter of the operating portion 5 of the endoscope body 2. In this case, the opening (removal port) of the C-shaped connecting portion 52
The width dimension of 52a is set smaller than the outer diameter dimension of the eyepiece 6 of the endoscope body 2.

【００３８】なお、Ｃ字状の連結部５２は開口部５２ａ
からこの連結部５２内に内視鏡本体２の操作部５を出し
入れできる程度に弾性変形可能に形成されている。そし
て、内視鏡本体２の接眼部６を開口部５２ａから連結部
５２内に挿入した状態で、開口部５２ａの両側部間で接
眼部６を弾性的に挾持する状態で弁装置３６Ｖが内視鏡
本体２の接眼部６に着脱可能に連結されるようになって
いる。The C-shaped connecting portion 52 has an opening 52a.
The elastic body is elastically deformable to such an extent that the operating portion 5 of the endoscope main body 2 can be put into and taken out of the connecting portion 52. Then, in a state where the eyepiece 6 of the endoscope body 2 is inserted into the connecting portion 52 from the opening 52a, the valve device 36V is elastically sandwiched between the both sides of the opening 52a. Is detachably connected to the eyepiece 6 of the endoscope body 2.

【００３９】また、弁装置３６Ｖの弁装置本体５１には
送液チューブ３５ａおよび吸引チューブ３５ｂを挿通す
る図５中で上下一対の挿通孔５３，５４が形成されてい
る。さらに、弁装置本体５１の側面には上下の挿通孔５
３，５４に送液チューブ３５ａおよび吸引チューブ３５
ｂを出し入れする横溝５３ａ，５４ａがそれぞれ形成さ
れている。各横溝５３ａ，５４ａの溝幅は送液チューブ
３５ａおよび吸引チューブ３５ｂの外径寸法よりも小さ
い幅寸法に設定されている。Further, in the valve device main body 51 of the valve device 36V, a pair of upper and lower insertion holes 53 and 54 in FIG. 5 for inserting the liquid feeding tube 35a and the suction tube 35b are formed. Furthermore, the upper and lower insertion holes 5 are provided on the side surface of the valve device main body 51.
3, 54, the liquid feeding tube 35a and the suction tube 35
Lateral grooves 53a and 54a for inserting and removing b are formed respectively. The groove width of each of the lateral grooves 53a and 54a is set to a width dimension smaller than the outer diameter dimension of the liquid feeding tube 35a and the suction tube 35b.

【００４０】さらに、弁装置本体５１には図６（Ａ）に
示すように送液チューブ３５ａおよび吸引チューブ３５
ｂの挿通孔５３，５４と直交する方向に向けて穿設され
た左右の縦穴５５ａ，５５ｂが形成されている。ここ
で、一方の縦穴５５ａには送液チューブ３５ａを開閉操
作する操作ボタン６１、他方の縦穴５５ｂには吸引チュ
ーブ３５ｂを開閉操作する操作ボタン６２がそれぞれ図
６（Ａ）中で、上下方向にスライド可能に装着されてい
る。Further, in the valve device main body 51, as shown in FIG. 6A, a liquid feeding tube 35a and a suction tube 35.
Left and right vertical holes 55a and 55b are formed in a direction orthogonal to the insertion holes 53 and 54 of b. Here, an operation button 61 for opening / closing the liquid feeding tube 35a is provided in one vertical hole 55a, and an operation button 62 for opening / closing the suction tube 35b is provided in the other vertical hole 55b in the vertical direction in FIG. 6 (A). It is mounted so that it can slide.

【００４１】また、弁装置本体５１内には縦穴５５ａ，
５５ｂを上下に仕切る第１の隔壁５６が形成されてい
る。この第１の隔壁５６の上部には操作ボタン６１，６
２の頭部６３および各操作ボタン６１，６２を弁装置本
体５１の外部側に押出す方向に付勢する圧縮コイルばね
６５を収容する縦穴５５ａ，５５ｂの大径部６０ａ，６
０ｂが形成されている。なお、圧縮コイルばね６５に代
えてゴムなどの弾性部材を使用してもよい。Further, in the valve device main body 51, vertical holes 55a,
A first partition wall 56 that divides 55b into upper and lower parts is formed. Operation buttons 61, 6 are provided on the upper part of the first partition wall 56.
The large diameter portions 60a, 6 of the vertical holes 55a, 55b for accommodating the compression coil spring 65 for urging the head 63 of No. 2 and the operation buttons 61, 62 to the outside of the valve device main body 51.
0b is formed. An elastic member such as rubber may be used instead of the compression coil spring 65.

【００４２】さらに、操作ボタン６１，６２には図６
（Ｃ）に示すように頭部６３の下面一側部に操作アーム
６４が突設されている。なお、操作ボタン６１，６２は
送液チューブ３５ａおよび吸引チューブ３５ｂの取付け
位置に対応して操作アーム６４の長さがそれぞれ設定さ
れている。すなわち、送液チューブ３５ａの操作ボタン
６１の操作アーム６４の長さは吸引チューブ３５ｂの操
作ボタン６２の操作アーム６４の長さよりも長くなる状
態に設定されている。Further, the operation buttons 61 and 62 are shown in FIG.
As shown in (C), an operation arm 64 is projectingly provided on one side of the lower surface of the head 63. The lengths of the operation arms 64 of the operation buttons 61 and 62 are set corresponding to the attachment positions of the liquid feeding tube 35a and the suction tube 35b. That is, the length of the operation arm 64 of the operation button 61 of the liquid feeding tube 35a is set to be longer than the length of the operation arm 64 of the operation button 62 of the suction tube 35b.

【００４３】また、操作アーム６４の下端部には縦穴５
５ａ，５５ｂと直交する方向に屈曲された屈曲部６７が
設けられている。この屈曲部６７は縦穴５５ａ，５５ｂ
の直径から若干はみ出す長さに形成されており、その部
分がスライド部６８となっている。さらに、屈曲部６７
の先端部には上方側に向かうにしたがって細くなる凸部
６９が形成されている。A vertical hole 5 is provided at the lower end of the operating arm 64.
A bent portion 67 that is bent in a direction orthogonal to 5a and 55b is provided. The bent portion 67 has vertical holes 55a and 55b.
Is formed to have a length slightly protruding from the diameter of, and that portion serves as a slide portion 68. Further, the bent portion 67
A convex portion 69 is formed at the tip of the convex portion 69, which becomes thinner toward the upper side.

【００４４】また、第１の隔壁５６には図６（Ｂ）に示
すように左右の異形穴５７，５８が形成されている。こ
こで、左側の異形穴５７には送液チューブ３５ａの操作
ボタン６１の操作アーム６４を挿通するアーム挿通部５
７ａと、この操作アーム６４の屈曲部６７を挿通する屈
曲部挿通部５７ｂとが設けられている。同様に、右側の
異形穴５８には吸引チューブ３５ｂの操作ボタン６２の
操作アーム６４を挿通するアーム挿通部５８ａと、この
操作アーム６４の屈曲部６７を挿通する屈曲部挿通部５
８ｂとが設けられている。Further, as shown in FIG. 6B, the first partition wall 56 is formed with left and right irregularly shaped holes 57 and 58. Here, the arm insertion portion 5 for inserting the operation arm 64 of the operation button 61 of the liquid feeding tube 35a into the odd-shaped hole 57 on the left side.
7a and a bent portion insertion portion 57b for inserting the bent portion 67 of the operation arm 64 are provided. Similarly, in the deformed hole 58 on the right side, the arm insertion portion 58a for inserting the operation arm 64 of the operation button 62 of the suction tube 35b and the bending portion insertion portion 5 for inserting the bending portion 67 of the operation arm 64 are inserted.
And 8b are provided.

【００４５】なお、左右の異形穴５７，５８の形状は操
作ボタン６１，６２の各操作アーム６４の横断面形状と
ほぼ一致する形状に形成されている。ここで、操作ボタ
ン６１，６２の各操作アーム６４の横断面形状は送液チ
ューブ３５ａの操作ボタン６１と吸引チューブ３５ｂの
操作ボタン６２とでは互いに異なる形状に設定されてい
る。そのため、左右の異形穴５７，５８にはそれぞれの
アーム挿通部５８ａと同形状の操作ボタン６１，６２で
なければ通らないようになっている。The left and right irregularly shaped holes 57 and 58 are formed to have a shape that substantially matches the cross-sectional shape of each operation arm 64 of the operation buttons 61 and 62. Here, the cross-sectional shape of each operation arm 64 of the operation buttons 61 and 62 is set to be different between the operation button 61 of the liquid feeding tube 35a and the operation button 62 of the suction tube 35b. Therefore, only the operation buttons 61 and 62 of the same shape as the arm insertion portion 58a can be inserted into the left and right deformed holes 57 and 58.

【００４６】さらに、上下の挿通孔５３，５４間の第２
の隔壁５９には第１の隔壁５６の右側の異形穴５８と同
一形状の異形穴５８、すなわち、吸引チューブ３５ｂの
操作ボタン６２の操作アーム６４を挿通するアーム挿通
部５８ａと、この操作アーム６４の屈曲部６７を挿通す
る屈曲部挿通部５８ｂとを備えた異形穴５８が形成され
ている。Further, the second between the upper and lower insertion holes 53, 54
In the partition wall 59 of the first partition wall 56, the deformed hole 58 having the same shape as the deformed hole 58 on the right side of the first partition wall 56, that is, the arm insertion portion 58a through which the operation arm 64 of the operation button 62 of the suction tube 35b is inserted, and the operation arm 64. A deformed hole 58 having a bent portion insertion portion 58b for inserting the bent portion 67 is formed.

【００４７】また、操作ボタン６１，６２には頭部６３
の下面における操作アーム６４との連結部以外の部分に
圧縮コイルばね６５の上端部が取付けられるばね取付け
部６６が突設されている。この圧縮コイルばね６５の下
端部は第１の隔壁５６の上面に当接されている。The operation buttons 61 and 62 have a head 63.
A spring attachment portion 66 to which the upper end of the compression coil spring 65 is attached is provided in a protruding manner on a portion other than the connection portion with the operation arm 64 on the lower surface of the. The lower end of the compression coil spring 65 is in contact with the upper surface of the first partition wall 56.

【００４８】そして、操作ボタン６１，６２は常時は圧
縮コイルばね６５のばね力によって図６（Ａ）中に実線
で示すように弁装置本体５１の外部側に押出す方向に付
勢された状態で保持されており、この状態で送液チュー
ブ３５ａの操作ボタン６１の屈曲部６７によって送液チ
ューブ３５ａが閉塞される状態に押圧操作され、同様に
吸引チューブ３５ｂの操作ボタン６２の屈曲部６７によ
って吸引チューブ３５ｂが閉塞される状態に押圧操作さ
れるようになっている。The operation buttons 61 and 62 are normally urged by the spring force of the compression coil spring 65 in the direction of pushing to the outside of the valve device main body 51 as shown by the solid line in FIG. 6 (A). In this state, the bending portion 67 of the operation button 61 of the liquid feeding tube 35a presses the liquid feeding tube 35a to the closed state, and similarly, the bending portion 67 of the operation button 62 of the suction tube 35b holds the liquid feeding tube 35a. The suction tube 35b is pressed so as to be closed.

【００４９】また、図６（Ａ）中に仮想線で示すように
送液チューブ３５ａの操作ボタン６１が圧縮コイルばね
６５のばね力に抗して弁装置本体５１の内部側に押し込
み操作された場合には送液チューブ３５ａの操作ボタン
６１の屈曲部６７が送液チューブ３５ａから離間する方
向に押し下げられ、送液チューブ３５ａが開操作される
ようになっている。同様に、吸引チューブ３５ｂの操作
ボタン６２が圧縮コイルばね６５のばね力に抗して弁装
置本体５１の内部側に押し込み操作された場合には吸引
チューブ３５ｂの操作ボタン６２の屈曲部６７が吸引チ
ューブ３５ｂから離間する方向に押し下げられ、吸引チ
ューブ３５ｂが開操作されるようになっている。Further, as shown by the phantom line in FIG. 6A, the operation button 61 of the liquid feeding tube 35a is pushed into the inside of the valve device main body 51 against the spring force of the compression coil spring 65. In this case, the bent portion 67 of the operation button 61 of the liquid feeding tube 35a is pushed down in the direction away from the liquid feeding tube 35a, and the liquid feeding tube 35a is opened. Similarly, when the operation button 62 of the suction tube 35b is pushed into the inside of the valve device main body 51 against the spring force of the compression coil spring 65, the bent portion 67 of the operation button 62 of the suction tube 35b sucks. The suction tube 35b is pushed down in a direction away from the tube 35b to open the suction tube 35b.

【００５０】また、弁装置本体５１内の縦穴５５ａ，５
５ｂの一側部には図６（Ｄ）に示すように各操作ボタン
６１，６２のスライド部６８をガイドするガイド溝７０
が縦方向に設けられている。このガイド溝７０には第１
の隔壁５６よりも上側で屈曲された屈曲部７１が形成さ
れている。この屈曲部７１の上面は中央に近いほど下方
に傾いている。なお、送気チューブ４３にも第１の送液
チューブ３５ａおよび第１の吸引チューブ３５ｂの弁装
置３６Ｖと略同様な構成の弁装置を設けても良い。Further, the vertical holes 55a, 5 in the valve device main body 51
As shown in FIG. 6D, a guide groove 70 for guiding the slide portion 68 of each of the operation buttons 61 and 62 is provided on one side of 5b.
Are provided in the vertical direction. The guide groove 70 has a first
A bent portion 71 that is bent above the partition wall 56 is formed. The upper surface of the bent portion 71 is inclined downward as it approaches the center. The air supply tube 43 may also be provided with a valve device having substantially the same configuration as the valve device 36V of the first liquid supply tube 35a and the first suction tube 35b.

【００５１】次に、上記構成の作用について説明する。
まず、内視鏡装置１の使用時には外装体３の内管１３に
内視鏡本体２を挿入する。続いて、それらを外管１４に
挿入した後、外管１４の外管連結部２２の固定バンド取
付け部２２ａにあらかじめ嵌め込まれて取付けられてい
る固定バンド３３を伸ばしながら、内視鏡本体２の操作
部５のライトガイドコネクタ３４に巻き付けられたの
ち、各種内視鏡に合わせて選択された固定バンド３３の
他端部のいずれか１つのバンド着脱孔３３ｂを外管連結
部２２のフック２２ｂに引っ掛けて係止させることによ
り、外装体３が内視鏡本体２に固定される。Next, the operation of the above configuration will be described.
First, when the endoscope device 1 is used, the endoscope main body 2 is inserted into the inner tube 13 of the exterior body 3. Subsequently, after inserting them into the outer tube 14, the fixing band 33 which is fitted and attached in advance to the fixing band attaching portion 22a of the outer tube connecting portion 22 of the outer tube 14 is extended while the endoscope body 2 of the endoscope body 2 is being extended. After being wound around the light guide connector 34 of the operation portion 5, one of the other band attachment / detachment holes 33b of the fixed band 33 selected according to various endoscopes is attached to the hook 22b of the outer pipe connecting portion 22. The exterior body 3 is fixed to the endoscope body 2 by being hooked and locked.

【００５２】このとき、内視鏡本体２の挿入部４の先端
面と内フランジ１７の内面との間は密着され、内フラン
ジ１７の内面の窪み１９によって第１の流路１５に連通
する噴射口用または吸引口用の開口部１９ａが形成され
ている。さらに、内フランジ１７の外面と外フランジ１
８の内面との間の隙間によって第２の流路１６に連通す
る送気口２０が形成されている。At this time, the tip end surface of the insertion portion 4 of the endoscope main body 2 and the inner surface of the inner flange 17 are in close contact with each other, and the depression 19 formed in the inner surface of the inner flange 17 allows the jetting to communicate with the first flow path 15. An opening 19a for the mouth or the suction port is formed. Furthermore, the outer surface of the inner flange 17 and the outer flange 1
An air supply port 20 that communicates with the second flow path 16 is formed by a gap between the inner surface of 8 and the second flow path 16.

【００５３】続いて、各チューブ類はそれぞれ各口金に
接続され、弁装置３６Ｖは連結部５２が内視鏡本体２の
接眼部６にはめ込まれた状態にセットされる。さらに、
弁装置３６Ｖの操作ボタン６１，６２が押し込み操作さ
れた状態でこの弁装置３６Ｖの側面の横溝５３ａ，５４
ａから送液チューブ３５ａおよび吸引チューブ３５ｂが
挿通孔５３，５４内に嵌め込まれる。Subsequently, the tubes are connected to the respective caps, and the valve device 36V is set such that the connecting portion 52 is fitted in the eyepiece portion 6 of the endoscope body 2. further,
The lateral grooves 53a, 54 on the side surface of the valve device 36V in a state where the operation buttons 61, 62 of the valve device 36V are pushed in and operated.
The liquid feeding tube 35a and the suction tube 35b are fitted into the insertion holes 53 and 54 from a.

【００５４】また、弁装置３６Ｖの挿通孔５３，５４内
に送液チューブ３５ａおよび吸引チューブ３５ｂが嵌め
込まれた状態で、操作ボタン６１，６２の押し込み操作
を止めると、圧縮コイルばね６５のばね力によって操作
ボタン６１，６２が弁装置本体５１の外部側に押出され
る。そのため、送液チューブ３５ａの操作ボタン６１の
屈曲部６７によって送液チューブ３５ａが第１の隔壁５
６に押し付けられ、送液チューブ３５ａが圧潰されて閉
塞される。同様に吸引チューブ３５ｂの操作ボタン６２
の屈曲部６７によって吸引チューブ３５ｂが第２の隔壁
５９に押し付けられ、吸引チューブ３５ｂが圧潰されて
閉塞される。When the pushing operation of the operation buttons 61 and 62 is stopped while the liquid feeding tube 35a and the suction tube 35b are fitted in the insertion holes 53 and 54 of the valve device 36V, the spring force of the compression coil spring 65 is reduced. Thus, the operation buttons 61 and 62 are pushed out to the outside of the valve device main body 51. Therefore, due to the bent portion 67 of the operation button 61 of the liquid feed tube 35a, the liquid feed tube 35a is moved to the first partition wall 5.
6, the liquid feeding tube 35a is crushed and closed. Similarly, the operation button 62 of the suction tube 35b
The suction tube 35b is pressed against the second partition wall 59 by the bent portion 67, and the suction tube 35b is crushed and closed.

【００５５】また、内視鏡本体２による内視鏡観察中、
挿入部４の先端部が汚れ、内視鏡観察の視野が妨げられ
た場合には弁装置３６Ｖが次の手順で操作される。すな
わち、まず送液チューブ３５ａの操作ボタン６１が圧縮
コイルばね６５のばね力に抗して弁装置本体５１の内部
側に押し込み操作される。この場合には図６（Ａ）中に
仮想線で示すように送液チューブ３５ａの操作ボタン６
１の屈曲部６７が送液チューブ３５ａから離間する方向
に押し下げられ、送液チューブ３５ａが開操作される。During observation of the endoscope by the endoscope body 2,
When the distal end portion of the insertion portion 4 is soiled and obstructs the field of view for endoscopic observation, the valve device 36V is operated in the following procedure. That is, first, the operation button 61 of the liquid supply tube 35 a is pushed into the inside of the valve device main body 51 against the spring force of the compression coil spring 65. In this case, as shown by the phantom line in FIG.
The bent portion 67 of No. 1 is pushed down in the direction away from the liquid feeding tube 35a, and the liquid feeding tube 35a is opened.

【００５６】そのため、送水源３９より送られる水は送
液口金２９から内管連結部２１の送液口２６、切り欠き
部３１を経て第１の流路１５に供給され、この第１の流
路１５内を通り、内フランジ１７の内面の窪み１９の噴
射口用開口部１９ａから内視鏡本体２の挿入部４の先端
面に噴射される。Therefore, the water sent from the water supply source 39 is supplied from the liquid supply mouthpiece 29 to the first flow path 15 through the liquid supply port 26 of the inner pipe connecting portion 21 and the cutout portion 31, and the first flow It passes through the passage 15 and is jetted to the tip surface of the insertion portion 4 of the endoscope main body 2 from the jet opening 19a of the depression 19 on the inner surface of the inner flange 17.

【００５７】さらに、噴射口用開口部１９ａから噴射さ
れる水によって汚れが洗い流されたのち、送液チューブ
３５ａの操作ボタン６１が元の位置に戻されるととも
に、吸引チューブ３５ｂの操作ボタン６２が圧縮コイル
ばね６５のばね力に抗して弁装置本体５１の内部側に押
し込み操作される。この場合には吸引チューブ３５ｂの
操作ボタン６２の屈曲部６７が吸引チューブ３５ｂから
離間する方向に押し下げられ、吸引チューブ３５ｂが開
操作される。Further, after the dirt is washed away by the water jetted from the jet opening 19a, the operation button 61 of the liquid feeding tube 35a is returned to its original position and the operation button 62 of the suction tube 35b is compressed. It is pushed into the inside of the valve device body 51 against the spring force of the coil spring 65. In this case, the bent portion 67 of the operation button 62 of the suction tube 35b is pushed down in the direction away from the suction tube 35b, and the suction tube 35b is opened.

【００５８】そのため、この場合には内視鏡本体２の挿
入部４の先端面で洗い流された異物や、残った水滴等が
吸引源４２側からの吸引力により、吸引口用の開口部１
９ａから第１の流路１５内に吸引されたのち、内管連結
部２１の切り欠き部３１から吸引口２７、吸引口金３
０、吸引チューブ３５ｂ、３７ｂ、連結チューブ４１を
経て吸引源４２に吸引される。Therefore, in this case, the foreign matter washed away at the distal end surface of the insertion portion 4 of the endoscope body 2 and the remaining water drops are attracted from the suction source 42 side by the suction force, and the opening 1 for the suction port is formed.
After being sucked into the first flow path 15 from 9a, the notch 31 of the inner pipe connecting portion 21 to the suction port 27 and the suction cap 3
0, the suction tubes 35b and 37b, and the connection tube 41 to be sucked by the suction source 42.

【００５９】また、内視鏡本体２の挿入部４の先端カバ
ーガラス等が結露し、内視鏡本体２の視野が妨げられた
場合には送気源４４が駆動される。そのため、この場合
には送気源４４より送られる気体は送気口金２８から内
管連結部２１の送気口２５、外管連結部２２の連通路３
２を経て第２の流路１６に供給され、この第２の流路１
６内を通り、内フランジ１７の外面と外フランジ１８の
内面との間の送気口２０から内視鏡本体２の挿入部４の
先端面に吹き付けられる。その結果、内視鏡本体２の挿
入部４の先端面の曇りが除去される。なお、送気につい
ては、連続的に送気してもよく、或いは本実施例のよう
に任意に送気する構成にしても良い。When the tip cover glass of the insertion portion 4 of the endoscope body 2 is condensed and the field of view of the endoscope body 2 is obstructed, the air supply source 44 is driven. Therefore, in this case, the gas sent from the air supply source 44 is supplied from the air supply mouthpiece 28 to the air supply port 25 of the inner pipe connecting portion 21 and the communication passage 3 of the outer pipe connecting portion 22.
2 is supplied to the second flow path 16 and the second flow path 1
It is blown to the tip surface of the insertion portion 4 of the endoscope body 2 through the air supply port 20 between the outer surface of the inner flange 17 and the inner surface of the outer flange 18. As a result, the fog on the distal end surface of the insertion portion 4 of the endoscope body 2 is removed. Regarding the air supply, the air may be supplied continuously or may be arbitrarily supplied as in the present embodiment.

【００６０】また、弁装置３６Ｖを分解する場合には左
右の操作ボタン６１，６２を押しながら送液チューブ３
５ａおよび吸引チューブ３５ｂを挿通孔５３，５４内か
ら横溝５３ａ，５４ａを通して取外す。When disassembling the valve device 36V, the liquid feeding tube 3 is pressed while pressing the left and right operation buttons 61 and 62.
5a and the suction tube 35b are removed from the insertion holes 53, 54 through the lateral grooves 53a, 54a.

【００６１】続いて、各操作ボタン６１，６２のスライ
ド部６８を弁装置本体５１内のガイド溝７０の形状に沿
って動かすように各操作ボタン６１，６２を適宜、操作
させながらこのスライド部６８をガイド溝７０内を通過
させ、弁装置本体５１から各操作ボタン６１，６２を抜
き取る。なお、圧縮コイルばね６５の上端部は各操作ボ
タン６１，６２の頭部６３の下面のばね取付け部６６に
嵌め込めれているだけであり、簡単に抜き取ることがで
きる。Subsequently, the slide portions 68 of the operation buttons 61 and 62 are appropriately operated so that the slide portions 68 of the operation buttons 61 and 62 are moved along the shape of the guide groove 70 in the valve device main body 51. Through the guide groove 70, and the operation buttons 61 and 62 are removed from the valve device main body 51. The upper end of the compression coil spring 65 is simply fitted into the spring mounting portion 66 on the lower surface of the head 63 of each operation button 61, 62, and can be easily removed.

【００６２】そこで、上記構成のものにあっては次の効
果を奏する。すなわち、内視鏡本体２に外装体３を装着
し、この外装体３の内管１３と内視鏡本体２の挿入部４
との間の隙間に第１の流路１５、更に内管１３と外管１
４との隙間に第１の流路１５とは独立した第２の流路１
６を形成し、内視鏡本体２の挿入部４の先端面が血液等
で汚れた時には、第１の流路１５から内視鏡本体２の挿
入部４の先端面に流体を噴射したり、吸引して挿入部４
の先端面を洗浄することができる。Therefore, the following effects are obtained with the above-mentioned structure. That is, the exterior body 3 is attached to the endoscope body 2, and the inner tube 13 of the exterior body 3 and the insertion portion 4 of the endoscope body 2 are attached.
In the gap between the first flow path 15, the inner pipe 13 and the outer pipe 1
The second flow channel 1 independent of the first flow channel 15
6 is formed, and when the distal end surface of the insertion portion 4 of the endoscope body 2 is contaminated with blood or the like, a fluid is jetted from the first flow path 15 to the distal end surface of the insertion portion 4 of the endoscope body 2. , Suction and insert part 4
The tip surface of can be cleaned.

【００６３】さらに、第２の流路１６を通して内視鏡本
体２の挿入部４の先端部側に乾燥した気体を供給し、内
フランジ１７の外面と外フランジ１８の内面との間の送
気口２０から挿入部４の先端面に乾燥した気体を吹き付
けるようにしたので、内視鏡本体２の挿入部４の先端面
の曇りを簡単に除去することができる。Further, dry gas is supplied to the distal end side of the insertion portion 4 of the endoscope main body 2 through the second flow path 16 to supply air between the outer surface of the inner flange 17 and the inner surface of the outer flange 18. Since the dry gas is blown from the mouth 20 to the tip surface of the insertion portion 4, it is possible to easily remove the fogging on the tip surface of the insertion portion 4 of the endoscope body 2.

【００６４】そのため、内視鏡本体２を患者の体から抜
くことなく、常にクリアな内視鏡視野を確保することが
できるので、内視鏡による手術時間の短縮を図ることが
できる。Therefore, a clear endoscope field of view can be always secured without pulling out the endoscope main body 2 from the patient's body, and the operation time by the endoscope can be shortened.

【００６５】また、内視鏡本体２にこの内視鏡本体２と
は別体の外装体３を取付けるだけでよいので、内視鏡装
置１全体の構造を単純化することができ、安価な内視鏡
装置１を製造することができる。Further, since it is only necessary to attach the exterior body 3 separate from the endoscope body 2 to the endoscope body 2, the structure of the entire endoscope apparatus 1 can be simplified and the cost is low. The endoscope device 1 can be manufactured.

【００６６】さらに、第２の流路１６を通して内視鏡本
体２の挿入部４の先端部側に乾燥した気体を連続的に送
気し、内フランジ１７の外面と外フランジ１８の内面と
の間の送気口２０から挿入部４の先端面に乾燥した気体
を常に吹き付ける構成にした場合には内視鏡本体２の挿
入部４の先端面に結露することを防止ができ、挿入部４
の先端面の曇りを確実に防ぐことができる。Further, the dry gas is continuously fed to the distal end side of the insertion portion 4 of the endoscope main body 2 through the second flow path 16 so that the outer surface of the inner flange 17 and the inner surface of the outer flange 18 are separated from each other. When the dry gas is constantly blown from the air supply port 20 between the insertion portion 4 and the distal end surface of the insertion portion 4, it is possible to prevent dew condensation on the distal end surface of the insertion portion 4 of the endoscope body 2, and the insertion portion 4
It is possible to reliably prevent fogging of the tip surface of the.

【００６７】また、内視鏡本体２への外装体３の組付
け、固定作業時には外管１４を固定バンド３３で内視鏡
本体２に固定するだけで、同時に内管１３も内視鏡本体
２側に固定することができるので、内管１３を内視鏡本
体２側に固定する作業を省略することができ、内視鏡本
体２への外装体３の組付け、固定作業を容易に行うこと
ができる。Further, at the time of assembling and fixing the exterior body 3 to the endoscope main body 2, only by fixing the outer tube 14 to the endoscope main body 2 with the fixing band 33, at the same time, the inner tube 13 is also fixed to the endoscope main body. Since it can be fixed to the second side, the work of fixing the inner tube 13 to the side of the endoscope body 2 can be omitted, and the assembling and fixing work of the exterior body 3 to the endoscope body 2 can be facilitated. It can be carried out.

【００６８】また、固定バンド３３は弾性材料で出来て
いるので、内視鏡本体２および外装体３の各構成部品の
加工誤差や、組立時の長さ方向のばらつきを吸収して確
実に外装体３を内視鏡本体２に固定できる。Further, since the fixing band 33 is made of an elastic material, it is possible to reliably absorb the processing error of each component of the endoscope body 2 and the exterior body 3 and the variation in the length direction at the time of assembling to ensure the exterior. The body 3 can be fixed to the endoscope body 2.

【００６９】さらに、固定バンド３３に複数のバンド着
脱孔３３ｂを形成したので、各種内視鏡に合わせて適正
な位置のバンド着脱孔３３ｂを選択することにより、内
視鏡本体２のライトガイドコネクタ２３の位置が違う内
視鏡でも簡単に使用可能となる。Furthermore, since a plurality of band attaching / detaching holes 33b are formed in the fixing band 33, the band attaching / detaching holes 33b at the proper positions are selected according to various endoscopes, so that the light guide connector of the endoscope body 2 can be selected. It can be easily used even with an endoscope in which the position of 23 is different.

【００７０】また、内管連結部２１の送気口金２８、送
液口金２９、吸引口金３０等の口金類を斜め後方に向け
て設置しているので、各口金２８，２９，３０に接続す
るチューブ類（送気チューブ４３、第１の送液チューブ
３５ａ、第１の吸引チューブ３５ｂ）の取り回しが煩雑
になる事がない。Further, since the bases such as the air supply mouthpiece 28, the liquid supply mouthpiece 29, and the suction mouthpiece 30 of the inner pipe connecting portion 21 are installed obliquely rearward, they are connected to the respective mouthpieces 28, 29, 30. The handling of the tubes (air supply tube 43, first liquid supply tube 35a, first suction tube 35b) does not become complicated.

【００７１】さらに、内管連結部２１のシール部材２３
を例えばシリコンなどの弾性材料で略円環状に成形し、
このシール部材２３の内周面の一部に略半円状の凸部を
全周に亙り突設してこのシール部材２３の外周部位を連
結穴２１ａの内周面に接着もしくはインサート成形等で
気密に取付けるとともに、外管連結部２２のシール部材
２４を例えばシリコンなどの弾性材料で略円環状に成形
し、このシール部材２４の一側面の一部に略半円状の凸
部を全周に亙り突設してこのシール部材２４の他側面を
外管連結部２２の後端面に接着もしくはインサート成形
等で気密に取付けたので、内管連結部２１のシール部材
２３および外管連結部２２のシール部材２４をＯリング
などで形成する場合のように分解清掃の必要がない。Further, the seal member 23 of the inner pipe connecting portion 21
Is molded into a substantially annular shape with an elastic material such as silicon,
A substantially semicircular convex portion is provided on a part of the inner peripheral surface of the seal member 23 so as to project over the entire circumference, and the outer peripheral portion of the seal member 23 is adhered to the inner peripheral surface of the connecting hole 21a or by insert molding or the like. The seal member 24 of the outer pipe connecting portion 22 is airtightly mounted, and is molded into a substantially annular shape by using an elastic material such as silicon, and a semicircular convex portion is formed on a part of one side surface of the seal member 24 over the entire circumference. Since the other side surface of the seal member 24 is attached to the rear end surface of the outer pipe connecting portion 22 in an airtight manner by bonding or insert molding, the seal member 23 of the inner pipe connecting portion 21 and the outer pipe connecting portion 22 are protruded. There is no need to disassemble and clean unlike the case where the seal member 24 is formed of an O ring or the like.

【００７２】また、内管連結部２１の内周面側の切り欠
き部３１を介して送液口２６の内端部および吸引口２７
の内端部と第１の流路１５との間を連通させ、内管連結
部２１の送液口金２９および吸引口金３０を後方側斜め
下向きに配置するとともに、内管連結部２１の送気口２
５の内端部を外管連結部２２の連通路３２を介して第２
の流路１６に連通させ、送気口金２８を後方側斜め上向
きに向けた状態で配置したので、各口金２８，２９，３
０を内視鏡本体２の挿入部４の軸心方向に対して直交す
る方向に連結する場合に比べて内管連結部２１をコンパ
クト化できる。Further, the inner end portion of the liquid feed port 26 and the suction port 27 are provided through the notch 31 on the inner peripheral surface side of the inner pipe connecting portion 21.
The inner end portion of the inner pipe and the first flow path 15 are communicated with each other, and the liquid feeding mouthpiece 29 and the suction mouthpiece 30 of the inner pipe connecting portion 21 are arranged obliquely rearward and downward, and the air feeding of the inner pipe connecting portion 21 is performed. Mouth 2
The inner end portion of the second pipe 5 through the communication passage 32 of the outer pipe connecting portion 22
Of the mouthpieces 28, 29, 3 since the air supply mouthpiece 28 is arranged so as to be directed obliquely upward to the rear side.
The inner tube connecting portion 21 can be made compact as compared with the case where 0 is connected in a direction orthogonal to the axial direction of the insertion portion 4 of the endoscope body 2.

【００７３】また、送気口金２８を外管連結部２２では
なく内管連結部２１に設けたため、外管連結部２２を軸
方向にコンパクト化することができ、外管１４の有効長
を長くすることができる。Further, since the air supply mouthpiece 28 is provided not on the outer pipe connecting portion 22 but on the inner pipe connecting portion 21, the outer pipe connecting portion 22 can be made compact in the axial direction, and the effective length of the outer pipe 14 is lengthened. can do.

【００７４】さらに、弁装置３６Ｖの弁装置本体５１の
側面に横溝５３ａ，５４ａを形成し、弁装置本体５１の
側面から横溝５３ａ，５４ａ内に送液チューブ３５ａお
よび吸引チューブ３５ｂを嵌め込むだけでよいので、こ
の弁装置３６Ｖを容易に分解組立できる。Further, the lateral grooves 53a and 54a are formed on the side surface of the valve device main body 51 of the valve device 36V, and the liquid feeding tube 35a and the suction tube 35b are fitted from the side surface of the valve device main body 51 into the lateral grooves 53a and 54a. Since it is good, the valve device 36V can be easily disassembled and assembled.

【００７５】また、弁装置本体５１の左右の異形穴５
７，５８の形状を操作ボタン６１，６２の各操作アーム
６４の横断面形状とほぼ一致する形状に形成し、操作ボ
タン６１，６２の各操作アーム６４の横断面形状は送液
チューブ３５ａの操作ボタン６１と吸引チューブ３５ｂ
の操作ボタン６２とでは互いに異なる形状に設定したの
で、左右の異形穴５７，５８にはそれぞれのアーム挿通
部５８ａと同形状の操作ボタン６１，６２でなければ通
らない。そのため、違う組合せでは組立たないようにす
ることができるので、送液チューブ３５ａの操作ボタン
６１と吸引チューブ３５ｂの操作ボタン６２とを弁装置
本体５１に誤装着するおそれがない。Further, the deformed holes 5 on the left and right of the valve device main body 51.
The shapes of 7, 58 are formed so as to be substantially the same as the cross-sectional shapes of the operation arms 64 of the operation buttons 61, 62, and the cross-sectional shapes of the operation arms 64 of the operation buttons 61, 62 are the operation of the liquid feeding tube 35a. Button 61 and suction tube 35b
Since the operation buttons 62 have different shapes from each other, the operation buttons 61 and 62 having the same shapes as the arm insertion portions 58a must be inserted into the left and right modified holes 57 and 58. Therefore, it is possible to prevent the assembly from being assembled in a different combination, and there is no fear that the operation button 61 of the liquid feeding tube 35a and the operation button 62 of the suction tube 35b are erroneously attached to the valve device main body 51.

【００７６】さらに、弁装置本体５１内の縦穴５５ａ，
５５ｂの一側部に各操作ボタン６１，６２のスライド部
６８をガイドするガイド溝７０を縦方向に設け、このガ
イド溝７０に第１の隔壁５６よりも上側で屈曲された屈
曲部７１を形成したので、弁装置本体５１から送液チュ
ーブ３５ａおよび吸引チューブ３５ｂを外しても、各操
作ボタン６１，６２は途中でガイド溝７０の屈曲部７１
の形状に沿って動かさなければ外れない。そのため、圧
縮コイルばね６５の復元力で不意に各操作ボタン６１，
６２が弁装置本体５１から外れてしまうおそれがない。Further, the vertical holes 55a in the valve device main body 51,
A guide groove 70 for guiding the slide portion 68 of each operation button 61, 62 is provided in one side portion 55b in the vertical direction, and a bent portion 71 bent above the first partition wall 56 is formed in the guide groove 70. Therefore, even if the liquid feeding tube 35a and the suction tube 35b are detached from the valve device main body 51, the operation buttons 61 and 62 are still in the middle of the bent portion 71 of the guide groove 70.
It cannot be removed unless it is moved along the shape of. Therefore, the restoring force of the compression coil spring 65 causes the operation buttons 61,
There is no risk that 62 will come off from the valve device main body 51.

【００７７】また、送液チューブ３５ａおよび吸引チュ
ーブ３５ｂを開閉操作する各操作ボタン６１，６２の屈
曲部６７の先端部に凸部６９を設けているので、送液チ
ューブ３５ａおよび吸引チューブ３５ｂが不意に弁装置
本体５１の横溝５３ａ，５４ａから外れてしまうおそれ
がない。Further, since the convex portion 69 is provided at the tip of the bent portion 67 of each operation button 61, 62 for opening and closing the liquid feeding tube 35a and the suction tube 35b, the liquid feeding tube 35a and the suction tube 35b are unexpectedly provided. Moreover, there is no risk of the valve device body 51 coming off from the lateral grooves 53a and 54a.

【００７８】また、図７（Ａ）は本発明の第２の実施例
を示すものである。これは、第１の実施例の内視鏡装置
１の外装体３の先端部の構成を次のように変更したもの
である。Further, FIG. 7A shows a second embodiment of the present invention. This is a modification of the configuration of the distal end portion of the exterior body 3 of the endoscope apparatus 1 of the first embodiment as follows.

【００７９】すなわち、本実施例では内フランジ１７の
内面側に形成された窪み１９の窪んだ深さとほぼ等しく
先端側に凸部８１ができるように、内フランジ１７を塑
性変形させたものである。ここで、外フランジ１８は外
管１４の先端部を内方向に向けて段差無く垂直に折曲げ
ただけの窪みや突起等の無い平らな形状に形成されてい
る。That is, in the present embodiment, the inner flange 17 is plastically deformed so that the projection 81 is formed on the tip side substantially equal to the recess depth of the recess 19 formed on the inner surface of the inner flange 17. . Here, the outer flange 18 is formed in a flat shape having no recesses or protrusions just by vertically bending the tip of the outer tube 14 inwardly without any step.

【００８０】そして、内管１３および外管１４を内視鏡
本体２に組み付ける際に、内フランジ１７の凸部８１と
外フランジ１８の内面側が当接した状態で、外管１４に
取り付けられた固定バンド３３で外管１４を後方側に向
けて引っ張ることによって、内視鏡本体２の先端面に内
フランジ１７の内面を押し付ける状態となる。このと
き、内フランジ１７の内面側の窪み１９と内視鏡本体２
の挿入部４の先端面とによって形成される空間によって
第１の流路１５に連通する噴射口用または吸引口用の開
口部１９ａが形成されると同時に、内フランジ１７の凸
部８１と外フランジ１８の内面側との当接により、内フ
ランジ１７の外面と、外フランジ１８の内面との間に形
成される隙間によって第２の流路１６に連通する送気口
８２が形成される。Then, when the inner tube 13 and the outer tube 14 are assembled to the endoscope body 2, the convex portion 81 of the inner flange 17 and the inner surface side of the outer flange 18 are attached to the outer tube 14 while being in contact with each other. By pulling the outer tube 14 toward the rear side with the fixing band 33, the inner surface of the inner flange 17 is pressed against the distal end surface of the endoscope body 2. At this time, the recess 19 on the inner surface side of the inner flange 17 and the endoscope body 2
An opening 19a for an injection port or a suction port communicating with the first flow path 15 is formed by the space formed by the distal end surface of the insertion portion 4 of the inner flange 17 and the convex portion 81 of the inner flange 17 and the outer portion. Due to the contact with the inner surface side of the flange 18, an air supply port 82 communicating with the second flow path 16 is formed by the gap formed between the outer surface of the inner flange 17 and the inner surface of the outer flange 18.

【００８１】そこで、上記構成のものにあっては外装体
３の内管１３および外管１４を内視鏡本体２に組み付け
る際に、外管１４の外フランジ１８を内管１３の内フラ
ンジ１７に突き当てることにより、内フランジ１７と外
フランジ１８との位置関係を自動的に決めることができ
るとともに、第２の流路１６に連通する送気口８２の大
きさも自動的に決めることができる。そのため、第２の
流路１６に連通する送気口８２を容易に形成することが
できるので、外装体３の内管１３および外管１４の先端
構造を簡略化することができる。また、内フランジ１７
および外フランジ１８をパイプの塑性加工で形成するこ
とができるので、部品点数の減少と、原価低減が可能で
ある。Therefore, in the above structure, when the inner tube 13 and the outer tube 14 of the outer casing 3 are assembled to the endoscope body 2, the outer flange 18 of the outer tube 14 is replaced by the inner flange 17 of the inner tube 13. By abutting against the above, the positional relationship between the inner flange 17 and the outer flange 18 can be automatically determined, and the size of the air supply port 82 communicating with the second flow path 16 can also be automatically determined. . Therefore, since the air supply port 82 communicating with the second flow path 16 can be easily formed, the tip structures of the inner pipe 13 and the outer pipe 14 of the exterior body 3 can be simplified. Also, the inner flange 17
Since the outer flange 18 and the outer flange 18 can be formed by plastic working of the pipe, the number of parts and the cost can be reduced.

【００８２】また、図７（Ｂ）は本発明の第３の実施例
を示すものである。これは、第１の実施例の内視鏡装置
１の外装体３の先端部の構成を次のように変更したもの
である。FIG. 7B shows the third embodiment of the present invention. This is a modification of the configuration of the distal end portion of the exterior body 3 of the endoscope apparatus 1 of the first embodiment as follows.

【００８３】すなわち、本実施例では外装体３の内管１
３の内フランジ１７の内面に窪み１９を少なくとも一
つ、本実施例では４つの窪み１９を設け、同様に外管１
４の外フランジ１８の内面にも窪み９１を設けたもので
ある。That is, in this embodiment, the inner tube 1 of the exterior body 3 is
3 has at least one recess 19 on the inner surface of the inner flange 17, and four recesses 19 are provided in the present embodiment.
The inner surface of the outer flange 18 of No. 4 has a recess 91.

【００８４】そして、内管１３及び外管１４を内視鏡本
体２に組み付けた際に、内フランジ１７の内面の窪み１
９と内視鏡本体２の挿入部４の先端面とにより形成され
た空間によって第１の流路１５に連通する噴射口用また
は吸引口用の開口部１９ａが形成されると同時に、外フ
ランジ１８の内面の窪み９１と内フランジ３０の外面と
の間に形成される空間によって第２の流路１６に連通す
る送気口９２が形成される。したがって、この場合も第
２の実施例と同様の効果を得ることができる。Then, when the inner tube 13 and the outer tube 14 are assembled to the endoscope body 2, the depression 1 on the inner surface of the inner flange 17 is formed.
The space formed by 9 and the tip surface of the insertion portion 4 of the endoscope body 2 forms an opening 19a for an injection port or a suction port that communicates with the first flow path 15, and at the same time, forms an outer flange. An air supply port 92 communicating with the second flow path 16 is formed by a space formed between the recess 91 on the inner surface of 18 and the outer surface of the inner flange 30. Therefore, also in this case, the same effect as that of the second embodiment can be obtained.

【００８５】また、図７（Ｃ）は本発明の第４の実施例
を示すものである。これは、第１の実施例の内視鏡装置
１の外装体３の先端部の構成を次のように変更したもの
である。FIG. 7C shows the fourth embodiment of the present invention. This is a modification of the configuration of the distal end portion of the exterior body 3 of the endoscope apparatus 1 of the first embodiment as follows.

【００８６】すなわち、本実施例では外装体３の内管１
３の内フランジ１７の内面に窪み１９を少なくとも一
つ、本実施例では４つの窪み１９を設け、かつ内フラン
ジ１７の外面に少なくとも一つ以上の複数の突起１０１
を設ける。また、外管１４の外フランジ１８は外管１４
の先端を内方向に向けて垂直に折曲げたのみの形状とし
た。That is, in this embodiment, the inner tube 1 of the exterior body 3 is
3 is provided with at least one recess 19 on the inner surface of the inner flange 17, and four recesses 19 are provided in the present embodiment, and at least one or more protrusions 101 are provided on the outer surface of the inner flange 17.
To provide. Further, the outer flange 18 of the outer pipe 14 is
The tip of each was only bent vertically toward the inside.

【００８７】そして、内管１３及び外管１４を内視鏡本
体２に組み付けた際に、内フランジ１７の内面の窪み１
９と内視鏡本体２の挿入部４の先端面とにより形成され
た空間によって第１の流路１５に連通する噴射口用また
は吸引口用の開口部１９ａが形成されると同時に、突起
１０１と外管１４の外フランジ１８との当接によって内
フランジ１７の外面と外フランジ１８との間に形成され
る空間によって第２の流路１６に連通する送気口１０２
が形成される。したがって、この場合も第２の実施例と
同様の効果を得ることができる。Then, when the inner tube 13 and the outer tube 14 are assembled to the endoscope body 2, the depression 1 on the inner surface of the inner flange 17 is formed.
The space formed by 9 and the tip surface of the insertion portion 4 of the endoscope body 2 forms an opening 19a for an injection port or a suction port that communicates with the first flow path 15, and at the same time, the projection 101. And the outer flange 18 of the outer tube 14 are brought into contact with each other, and an air supply port 102 communicating with the second flow path 16 by a space formed between the outer surface of the inner flange 17 and the outer flange 18.
Is formed. Therefore, also in this case, the same effect as that of the second embodiment can be obtained.

【００８８】また、図７（Ｄ）は本発明の第５の実施例
を示すものである。これは、第１の実施例の内視鏡装置
１の外装体３の先端部の構成を次のように変更したもの
である。FIG. 7D shows the fifth embodiment of the present invention. This is a modification of the configuration of the distal end portion of the exterior body 3 of the endoscope apparatus 1 of the first embodiment as follows.

【００８９】すなわち、本実施例では外装体３の内管１
３の内フランジ１７の内面に窪み１９を少なくとも一
つ、本実施例では４つの窪み１９を設ける。また、外管
１４の外フランジ１８の内面には少なくとも一つ、本実
施例では４つの突起１１１を設ける。That is, in this embodiment, the inner tube 1 of the exterior body 3 is
At least one dent 19 is provided on the inner surface of the inner flange 17 of No. 3, and four dents 19 are provided in this embodiment. Further, at least one, in this embodiment, four protrusions 111 are provided on the inner surface of the outer flange 18 of the outer tube 14.

【００９０】そして、内管１３及び外管１４を内視鏡本
体２に組み付けた際に、内フランジ１７の内面の窪み１
９と内視鏡本体２の挿入部４の先端面とにより形成され
た空間によって第１の流路１５に連通する噴射口用また
は吸引口用の開口部１９ａが形成されると同時に、外フ
ランジ１８の内面の４つの突起１１１と内管１３の内フ
ランジ１７との当接によって内フランジ１７の外面と外
フランジ１８との間に形成される空間によって第２の流
路１６に連通する送気口１１２が形成される。したがっ
て、この場合も第２の実施例と同様の効果を得ることが
できる。Then, when the inner tube 13 and the outer tube 14 are assembled to the endoscope body 2, the depression 1 on the inner surface of the inner flange 17 is formed.
The space formed by 9 and the tip surface of the insertion portion 4 of the endoscope body 2 forms an opening 19a for an injection port or a suction port that communicates with the first flow path 15, and at the same time, forms an outer flange. Air supply that communicates with the second flow passage 16 by the space formed between the outer surface of the inner flange 17 and the outer flange 18 by the contact between the four protrusions 111 on the inner surface of the inner pipe 18 and the inner flange 17 of the inner tube 13. A mouth 112 is formed. Therefore, also in this case, the same effect as that of the second embodiment can be obtained.

【００９１】また、図８（Ａ）は本発明の第６の実施例
を示すものである。これは、第１の実施例の内視鏡装置
１の外装体３の先端部の構成を次のように変更したもの
である。Further, FIG. 8A shows a sixth embodiment of the present invention. This is a modification of the configuration of the distal end portion of the exterior body 3 of the endoscope apparatus 1 of the first embodiment as follows.

【００９２】すなわち、本実施例では外装体３の内管１
３と外管１４を内視鏡本体２に組み付けたときに、内視
鏡本体２の先端面と内管１３の先端の内フランジ１７と
の間の隙間によって第１の流路１５に連通する噴射口用
または吸引口用の開口部１２１を形成すると同時に、内
フランジ１７の外面と外フランジ１８との間に形成され
る空間によって第２の流路１６に連通する送気口２０を
形成したものである。したがって、この場合も第２の実
施例と同様の効果を得ることができる。That is, in this embodiment, the inner tube 1 of the exterior body 3 is
When the outer tube 3 and the outer tube 14 are assembled to the endoscope body 2, they are communicated with the first flow path 15 through a gap between the tip surface of the endoscope body 2 and the inner flange 17 at the tip of the inner tube 13. At the same time as forming the opening 121 for the injection port or the suction port, the air supply port 20 communicating with the second flow path 16 was formed by the space formed between the outer surface of the inner flange 17 and the outer flange 18. It is a thing. Therefore, also in this case, the same effect as that of the second embodiment can be obtained.

【００９３】また、図８（Ｂ）は本発明の第７の実施例
を示すものである。これは、第１の実施例の内視鏡装置
１の外装体３の先端部の構成を次のように変更したもの
である。FIG. 8B shows the seventh embodiment of the present invention. This is a modification of the configuration of the distal end portion of the exterior body 3 of the endoscope apparatus 1 of the first embodiment as follows.

【００９４】すなわち、本実施例では外装体３の内管１
３の先端部の内フランジ１７の外面に少なくとも一つ、
本実施例では４つの突起１３１を設け、この突起１３１
を外管１４の先端の外フランジ１８に当接させたもので
ある。That is, in this embodiment, the inner tube 1 of the exterior body 3 is
At least one on the outer surface of the inner flange 17 at the tip of 3,
In this embodiment, four protrusions 131 are provided, and these protrusions 131
Is brought into contact with the outer flange 18 at the tip of the outer tube 14.

【００９５】そして、内管１３と外管１４を内視鏡本体
２に組み付けたときに、内視鏡本体２の挿入部４の先端
面と内管１３の内フランジ１７との隙間によって第１の
流路１５に連通する噴射口用または吸引口用の開口部１
２１が形成されると同時に、内フランジ１７の外面の突
起１３１と外管１４の外フランジ１８との当接によって
内フランジ１７の外面と外フランジ１８との間に形成さ
れる空間によって第２の流路１６に連通する送気口１３
２が形成される。したがって、この場合も第２の実施例
と同様の効果を得ることができる。When the inner tube 13 and the outer tube 14 are assembled to the endoscope body 2, the first gap is formed by the gap between the tip surface of the insertion portion 4 of the endoscope body 2 and the inner flange 17 of the inner tube 13. 1 for an injection port or a suction port communicating with the flow path 15 of
21 is formed at the same time as the second protrusion is formed by the space formed between the outer surface of the inner flange 17 and the outer flange 18 by the contact between the projection 131 on the outer surface of the inner flange 17 and the outer flange 18 of the outer tube 14. Air supply port 13 communicating with flow path 16
2 is formed. Therefore, also in this case, the same effect as that of the second embodiment can be obtained.

【００９６】また、図８（Ｃ）は本発明の第８の実施例
を示すものである。これは、第１の実施例の内視鏡装置
１の外装体３の先端部の構成を次のように変更したもの
である。Further, FIG. 8C shows an eighth embodiment of the present invention. This is a modification of the configuration of the distal end portion of the exterior body 3 of the endoscope apparatus 1 of the first embodiment as follows.

【００９７】すなわち、本実施例では外装体３の内管１
３の先端部には格別に内フランジ１７を設けることな
く、外管１４の先端部のみに外フランジ１８を設けたも
のである。That is, in this embodiment, the inner tube 1 of the exterior body 3 is
The outer flange 18 is provided only on the tip of the outer tube 14 without providing the inner flange 17 on the tip of the outer tube 3.

【００９８】そして、内管１３と外管１４を内視鏡本体
２に組み付けたときに、内視鏡本体２の挿入部４の先端
面と内管１３の先端面が軸方向に同じ位置に配置され
る。このとき、外管１４の外フランジ１８の内面と内視
鏡本体２の挿入部４の先端面との間の隙間１４１に第１
の流路１５に連通する噴射口用または吸引口用の開口部
１４２および第２の流路１６に連通する送気口１４３が
それぞれ連通される。したがって、この場合も第２の実
施例と同様の効果を得ることができる。When the inner tube 13 and the outer tube 14 are assembled to the endoscope body 2, the tip surface of the insertion portion 4 of the endoscope body 2 and the tip surface of the inner tube 13 are at the same axial position. Will be placed. At this time, the first gap is formed in the gap 141 between the inner surface of the outer flange 18 of the outer tube 14 and the tip surface of the insertion portion 4 of the endoscope body 2.
The opening 142 for the injection port or the suction port, which communicates with the flow path 15 of FIG. 3, and the air supply port 143 which communicates with the second flow path 16, respectively. Therefore, also in this case, the same effect as that of the second embodiment can be obtained.

【００９９】また、図８（Ｄ）は本発明の第９の実施例
を示すものである。これは、第１の実施例の内視鏡装置
１の外装体３の先端部の構成を次のように変更したもの
である。Further, FIG. 8D shows a ninth embodiment of the present invention. This is a modification of the configuration of the distal end portion of the exterior body 3 of the endoscope apparatus 1 of the first embodiment as follows.

【０１００】すなわち、本実施例では外装体３の内管１
３の先端面には格別に内フランジ１７を設けることな
く、この内管１３の先端面に少なくとも一つ、本実施例
では４つの突起１５１を設け、外管１４の先端部のみに
外フランジ１８を設けたものである。That is, in this embodiment, the inner tube 1 of the exterior body 3 is
No inner flange 17 is provided on the tip surface of the inner tube 13, and at least one, four protrusions 151 are provided on the tip surface of the inner tube 13, and the outer flange 18 is provided only on the tip portion of the outer tube 14. Is provided.

【０１０１】そして、内管１３と外管１４を内視鏡本体
２に組み付けたときに、内視鏡本体２の挿入部４の先端
面と内管１３の先端面が軸方向に同じ位置に配置され
る。このとき、内管１３の突起１５１が外管１４の外フ
ランジ１８の内面に突き当てられて内視鏡本体２の挿入
部４の先端面と外管１４の外フランジ１８との間に形成
される隙間に第１の流路１５に連通する噴射口用または
吸引口用の開口部１５２および第２の流路１６に連通す
る送気口１５３がそれぞれ連通される。したがって、こ
の場合も第２の実施例と同様の効果を得ることができ
る。When the inner tube 13 and the outer tube 14 are assembled to the endoscope body 2, the tip surface of the insertion portion 4 of the endoscope body 2 and the tip surface of the inner tube 13 are at the same axial position. Will be placed. At this time, the projection 151 of the inner tube 13 is abutted against the inner surface of the outer flange 18 of the outer tube 14 and is formed between the tip surface of the insertion portion 4 of the endoscope body 2 and the outer flange 18 of the outer tube 14. An opening 152 for an injection port or a suction port that communicates with the first flow channel 15 and an air supply port 153 that communicates with the second flow channel 16 are communicated with the gap. Therefore, also in this case, the same effect as that of the second embodiment can be obtained.

【０１０２】また、図８（Ｅ）は本発明の第１０の実施
例を示すものである。これは、第１の実施例の内視鏡装
置１の外装体３の先端部の構成を次のように変更したも
のである。FIG. 8E shows the tenth embodiment of the present invention. This is a modification of the configuration of the distal end portion of the exterior body 3 of the endoscope apparatus 1 of the first embodiment as follows.

【０１０３】すなわち、本実施例では外装体３の内管１
３の先端部には格別に内フランジ１７を設けることな
く、外管１４の先端部のみに外フランジ１８を設け、か
つこの外フランジ１８の内面に少なくとも一つ、本実施
例では４つの突起１６１を設たものである。That is, in this embodiment, the inner tube 1 of the exterior body 3 is
The outer flange 18 is provided only on the tip of the outer tube 14 without providing the inner flange 17 on the tip of the outer pipe 18, and at least one protrusion is provided on the inner surface of the outer flange 18, that is, four protrusions 161 in this embodiment. Is installed.

【０１０４】そして、内管１３と外管１４を内視鏡本体
２に組み付けたときに、内視鏡本体２の挿入部４の先端
面と内管１３の先端面が軸方向に同じ位置に配置され
る。このとき、外管１４の外フランジ１８の突起１６１
と内視鏡本体２の挿入部４及び内管１３の先端面とが突
き当たっていて、外管１４の外フランジ１８と内視鏡本
体２の挿入部４の先端面との隙間１６２に第１の流路１
５に連通する噴射口用または吸引口用の開口部１６３お
よび第２の流路１６に連通する送気口１６４がそれぞれ
連通される。したがって、この場合も第２の実施例と同
様の効果を得ることができる。When the inner tube 13 and the outer tube 14 are assembled to the endoscope body 2, the tip surface of the insertion portion 4 of the endoscope body 2 and the tip surface of the inner tube 13 are at the same axial position. Will be placed. At this time, the protrusion 161 of the outer flange 18 of the outer pipe 14
The insertion portion 4 of the endoscope body 2 and the tip end surface of the inner tube 13 abut against each other, and the first gap is formed in the gap 162 between the outer flange 18 of the outer tube 14 and the tip end surface of the insertion portion 4 of the endoscope body 2. Channel 1
5, an opening 163 for an injection port or a suction port communicating with 5 and an air supply port 164 communicating with the second flow path 16 are communicated with each other. Therefore, also in this case, the same effect as that of the second embodiment can be obtained.

【０１０５】また、図９は本発明の第１１の実施例を示
すものである。これは、第１の実施例の内視鏡装置１の
内視鏡本体２が斜視型の場合に外装体３の先端部の構成
を次のように変更したものである。FIG. 9 shows the 11th embodiment of the present invention. This is a modification of the configuration of the distal end portion of the exterior body 3 when the endoscope body 2 of the endoscope apparatus 1 of the first embodiment is a perspective type, as follows.

【０１０６】すなわち、本実施例では外装体３の内フラ
ンジ１７を内視鏡本体２の挿入部４の斜視型の先端面の
形状に合わせて平行に折曲げるとともに、この内フラン
ジ１７の内面側に形成された窪み１９の窪んだ深さとほ
ぼ等しく先端側に凸部８１ができるように、内フランジ
１７を塑性変形させたものである。ここで、外フランジ
１８は外管１４の先端部を内方向に向けて段差無く内視
鏡本体２の挿入部４の斜視型の先端面の形状に合わせて
平行に折曲げただけの窪みや突起等の無い平らな形状に
形成されている。That is, in this embodiment, the inner flange 17 of the exterior body 3 is bent in parallel in conformity with the shape of the distal end surface of the insertion portion 4 of the endoscope body 2 of the perspective type, and the inner surface side of the inner flange 17 is also bent. The inner flange 17 is plastically deformed so that a convex portion 81 is formed on the tip side, which is almost equal to the depth of the depression 19 formed in 1. Here, the outer flange 18 has a dent that is formed by bending the tip of the outer tube 14 inwardly in parallel with the shape of the perspective end surface of the insertion portion 4 of the endoscope body 2 without any steps. It has a flat shape with no protrusions.

【０１０７】そして、内管１３および外管１４を内視鏡
本体２に組み付ける際に、内フランジ１７の凸部８１と
外フランジ１８の内面側が当接した状態で、外管１４に
取り付けられた固定バンド３３で外管１４を後方側に向
けて引っ張ることによって、内視鏡本体２の先端面に内
フランジ１７の内面を押し付ける状態となる。このと
き、内フランジ１７の内面側の窪み１９と内視鏡本体２
の挿入部４の先端面とによって形成される空間によって
第１の流路１５に連通する噴射口用または吸引口用の開
口部１９ａが形成されると同時に、内フランジ１７の凸
部８１と外フランジ１８の内面側との当接により、内フ
ランジ１７の外面と、外フランジ１８の内面との間に形
成される隙間によって第２の流路１６に連通する送気口
８２が形成される。したがって、この場合も第２の実施
例と同様の効果を得ることができる。Then, when the inner tube 13 and the outer tube 14 are assembled to the endoscope body 2, the projection 81 of the inner flange 17 and the inner surface side of the outer flange 18 are attached to the outer tube 14 in a state of being in contact with each other. By pulling the outer tube 14 toward the rear side with the fixing band 33, the inner surface of the inner flange 17 is pressed against the distal end surface of the endoscope body 2. At this time, the recess 19 on the inner surface side of the inner flange 17 and the endoscope body 2
An opening 19a for an injection port or a suction port communicating with the first flow path 15 is formed by the space formed by the distal end surface of the insertion portion 4 of the inner flange 17 and the convex portion 81 of the inner flange 17 and the outer portion. Due to the contact with the inner surface side of the flange 18, an air supply port 82 communicating with the second flow path 16 is formed by the gap formed between the outer surface of the inner flange 17 and the inner surface of the outer flange 18. Therefore, also in this case, the same effect as that of the second embodiment can be obtained.

【０１０８】なお、本発明は上記各実施例に限定される
ものではなく、本発明の要旨を逸脱しない範囲で種々変
形実施できることは勿論である。次に、本発明の他の特
徴的な技術事項を下記の通り付記する。The present invention is not limited to the above-mentioned embodiments, and it goes without saying that various modifications can be made without departing from the gist of the present invention. Next, other characteristic technical matters of the present invention will be additionally described as follows.

【０１０９】記 （付記項１） 内視鏡に管を装着し、内視鏡と管との隙
間を第１の流路として流体を内視鏡先端面に流したり、
吸引する内視鏡装置に於いて、前記管にさらに外管を装
着し、管と外管との隙間を前記第１の流路と独立した第
２の流路として形成し、内視鏡先端に流体を流したり、
吸引することを特徴とする内視鏡装置。(Additional Item 1) A tube is attached to the endoscope, and a fluid is caused to flow to the distal end surface of the endoscope by using a gap between the endoscope and the tube as a first flow path.
In an endoscope apparatus for sucking, an outer tube is further attached to the tube, and a gap between the tube and the outer tube is formed as a second flow path independent of the first flow path. Flowing a fluid to
An endoscope apparatus characterized by suction.

【０１１０】（付記項２） 前記第１の流路と、前記第
２の流路を、一方を送液及び吸引の管路とし、他方を送
気の管路としたことを特徴とする付記項１に記載の内視
鏡装置。(Additional Item 2) One of the first flow path and the second flow path is used as a liquid supply and suction pipe line, and the other is used as an air supply pipe line. The endoscope apparatus according to Item 1.

【０１１１】（付記項３） 前記第１の流路を送液及び
吸引の管路とし、前記第２の流路を送気の管路としたこ
とを特徴とする付記項２に記載の内視鏡装置。 （付記項４） 前記第１の流路を送気の管路とし、前記
第２の流路を送液及び吸引の管路としたことを特徴とす
る付記項２に記載の内視鏡装置。(Additional Item 3) The additional item 3 is characterized in that the first flow path is a liquid supply and suction pipe line and the second flow path is an air supply pipe line. Endoscope device. (Additional Item 4) The endoscope apparatus according to Additional Item 2, wherein the first flow path is an air supply conduit and the second flow path is a liquid supply and suction conduit. .

【０１１２】（付記項５） 前記内視鏡装置本体とこの
装置本体の外部の送水源及び吸引源との間に、弁装置を
設けたことを特徴とする付記項１に記載の内視鏡装置。 （付記項６） 前記内視鏡装置本体とこの装置本体の外
部の送気源との間に、弁装置を設けたことを特徴とする
付記項１に記載の内視鏡装置。(Additional Item 5) The endoscope according to Additional Item 1, wherein a valve device is provided between the main body of the endoscope device and a water supply source and a suction source outside the main body of the endoscope device. apparatus. (Additional Item 6) The endoscope device according to Additional Item 1, wherein a valve device is provided between the endoscope device body and an air supply source outside the device body.

【０１１３】（付記項７） 前記弁装置がチューブを潰
すことにより流体を制御する弁装置であることを特徴と
する付記項５及び６に記載の内視鏡装置。 （付記項８） 送液及び吸引をシリンジで行うことを特
徴とする付記項２に記載の内視鏡装置。(Additional Item 7) The endoscope device according to Additional Items 5 and 6, wherein the valve device is a valve device that controls a fluid by crushing a tube. (Additional Item 8) The endoscope apparatus according to Additional Item 2, wherein liquid supply and suction are performed by a syringe.

【０１１４】（付記項９） 少なくとも一方の管の先端
部を内側に折曲げたフランジ状とし、前記内視鏡の先端
と前記フランジとの隙間、もしくはフランジどうしの隙
間を流体の噴出口または吸引口としたことを特徴とする
付記項１に記載の内視鏡装置。(Additional Item 9) At least one of the pipes has a tip end portion bent inward to form a flange shape, and a gap between the tip end of the endoscope and the flange or a gap between the flanges is used as a fluid ejection port or a suction port. The endoscope device according to Additional Item 1, wherein the endoscope device is a mouth.

【０１１５】（付記項１０） 少なくとも一つのフラン
ジの後端面の面に窪みまたは突起を設けたことを特徴と
する付記項９に記載の内視鏡装置。 （付記項１１） 少なくとも一つのフランジの先端面の
面に窪みまたは突起を設けたことを特徴とする付記項９
に記載の内視鏡装置。(Additional Item 10) The endoscope device according to Additional Item 9, wherein at least one rear surface of the flange is provided with a recess or a protrusion. (Additional Item 11) An additional item 9 characterized in that a recess or a protrusion is provided on the surface of the front end surface of at least one flange.
The endoscopic device according to 1.

【０１１６】（付記項１２） 内視鏡本体に外装される
外装体に前記内視鏡本体を覆う内管と、この内管を覆う
外管とを設け、前記内視鏡本体と前記内管との間に第１
の流路、前記内管と前記外管との間に前記第１の流路と
独立した第２の流路をそれぞれ形成し、前記第１の流路
および第２の流路のうちの一方に前記内視鏡本体の先端
部側に液体を流し、吸引する手段、他方に前記内視鏡本
体の先端部側に気体を吹き付ける送気手段を設けたこと
を特徴とする内視鏡装置。 （付記項１３） 流体を流し、吸引する方向は内視鏡本
体の対物カバーガラスのある面に向かっていることを特
徴とする付記項１に記載の内視鏡装置。(Supplementary Note 12) An outer tube that covers the endoscope body is provided with an inner tube that covers the endoscope body and an outer tube that covers the inner tube. Between the first
And a second flow path independent of the first flow path is formed between the inner pipe and the outer pipe, and one of the first flow path and the second flow path is formed. An endoscope apparatus comprising: a means for flowing and sucking a liquid to the tip end side of the endoscope body, and an air supply means for blowing gas to the tip end side of the endoscope body on the other side. (Additional Item 13) The endoscope apparatus according to Additional Item 1, wherein the direction of flowing and sucking the fluid is toward the surface of the endoscope main body on which the objective cover glass is present.

【０１１７】[0117]

【発明の効果】本発明によれば内視鏡本体に外装される
外装体を設け、この外装体に内視鏡本体の操作部側と先
端部側との間を連通する独立した複数の流路を備えた流
体流通手段を設けるとともに、この流体流通手段の一部
の流路を通して前記内視鏡本体の先端部側に液体を供給
し、かつ前記内視鏡本体の先端部側を吸引する手段およ
び前記流体流通手段の他の流路を通して前記内視鏡本体
の先端部側に気体を吹き付ける送気手段を設けたので、
内視鏡本体の先端部側が血液等で汚れた時には、流体の
吹き付けと吸引により内視鏡本体の先端面を洗浄でき、
かつ、流体とは別の管路を通して内視鏡本体の先端面に
乾燥した気体を吹き付けることにより、内視鏡本体の先
端面の曇りの除去、防止ができる。そのため、内視鏡本
体を患者の体から抜くことなく、常にクリアな内視鏡視
野を確保でき、内視鏡手術時間を短縮することができ
る。また、構造が単純なため、安価に製造することがで
きる。According to the present invention, an exterior body is provided to the exterior of the endoscope main body, and a plurality of independent flow passages for communicating between the operation portion side and the tip end side of the endoscope main body are provided on the exterior body. A fluid circulating means having a passage is provided, liquid is supplied to the distal end side of the endoscope main body through a part of the flow passage of the fluid circulating means, and the distal end side of the endoscope main body is sucked. Since the means for supplying the gas to the distal end side of the endoscope main body through the other flow path of the means and the fluid flow means,
When the tip side of the endoscope body gets dirty with blood etc., the tip surface of the endoscope body can be washed by spraying and sucking fluid.
Moreover, by spraying a dry gas onto the distal end surface of the endoscope main body through a conduit different from the fluid, it is possible to remove or prevent the fogging of the distal end surface of the endoscope main body. Therefore, a clear endoscope field of view can always be secured without pulling out the endoscope body from the patient's body, and the endoscopic surgery time can be shortened. Further, since the structure is simple, it can be manufactured at low cost.

【図面の簡単な説明】[Brief description of drawings]

【図１】 本発明の第１の実施例の内視鏡装置の要部の
概略構成図。FIG. 1 is a schematic configuration diagram of a main part of an endoscope apparatus according to a first embodiment of the present invention.

【図２】 外装体の要部の縦断面図。FIG. 2 is a vertical cross-sectional view of a main part of an exterior body.

【図３】 外装体の挿入部の先端部の縦断面図。FIG. 3 is a vertical cross-sectional view of the distal end portion of the insertion portion of the exterior body.

【図４】 外装体を内視鏡本体に固定する固定バンドの
平面図。FIG. 4 is a plan view of a fixing band that fixes the exterior body to the endoscope body.

【図５】 弁装置を示す平面図。FIG. 5 is a plan view showing a valve device.

【図６】 （Ａ）は弁装置の縦断面図、（Ｂ）は（Ａ）
のＬ1 −Ｌ1 線断面図、（Ｃ）は弁装置の操作ボタンを
示す側面図、（Ｄ）は弁装置のアームガイド溝を示す縦
断面図。6A is a vertical cross-sectional view of the valve device, and FIG. 6B is FIG.
L 1 -L 1 line sectional view, (C) is a side view showing the operating button of the valve device, (D) is a longitudinal sectional view showing the arm guide groove of the valve device.

【図７】 （Ａ）は本発明の第２の実施例の内視鏡装置
の外装体の要部の縦断面図、（Ｂ）は本発明の第３の実
施例の内視鏡装置の外装体の要部の縦断面図、（Ｃ）は
本発明の第４の実施例の内視鏡装置の外装体の要部の縦
断面図、（Ｄ）は本発明の第５の実施例の内視鏡装置の
外装体の要部の縦断面図。FIG. 7A is a vertical cross-sectional view of the main part of the exterior body of the endoscope apparatus of the second embodiment of the present invention, and FIG. 7B is the endoscope apparatus of the third embodiment of the present invention. A longitudinal sectional view of an essential part of the exterior body, (C) is a longitudinal sectional view of an essential part of the exterior body of the endoscope apparatus of the fourth embodiment of the present invention, and (D) is the fifth embodiment of the present invention. FIG. 3 is a vertical cross-sectional view of the main part of the exterior body of the endoscope apparatus of FIG.

【図８】 （Ａ）は本発明の第６の実施例の内視鏡装置
の外装体の要部の縦断面図、（Ｂ）は本発明の第７の実
施例の内視鏡装置の外装体の要部の縦断面図、（Ｃ）は
本発明の第８の実施例の内視鏡装置の外装体の要部の縦
断面図、（Ｄ）は本発明の第９の実施例の内視鏡装置の
外装体の要部の縦断面図、（Ｅ）は本発明の第１０の実
施例の内視鏡装置の外装体の要部の縦断面図。FIG. 8A is a vertical cross-sectional view of the main part of the exterior body of the endoscope apparatus according to the sixth embodiment of the present invention, and FIG. 8B shows the endoscope apparatus according to the seventh embodiment of the present invention. A longitudinal sectional view of an essential part of the exterior body, (C) is a longitudinal sectional view of an essential part of the exterior body of the endoscope apparatus according to the eighth embodiment of the present invention, and (D) is a ninth embodiment of the present invention. FIG. 16E is a vertical cross-sectional view of the main part of the exterior body of the endoscope device, and FIG. 8E is a vertical cross-sectional view of the main part of the exterior body of the endoscope device according to the tenth embodiment of the present invention.

【図９】 本発明の第１１の実施例の内視鏡装置の外装
体の要部の縦断面図。FIG. 9 is a vertical cross-sectional view of a main part of an exterior body of an endoscope device according to an eleventh embodiment of the present invention.

【符号の説明】[Explanation of symbols]

２…内視鏡本体、３…外装体、４…挿入部、５…操作
部、１５…第１の流路、１６…第２の流路。2 ... endoscope main body, 3 ... exterior body, 4 ... insertion part, 5 ... operation part, 15 ... first flow path, 16 ... second flow path.

Claims (1)

【特許請求の範囲】[Claims] 【請求項１】 内視鏡本体に外装される外装体を設け、
この外装体に前記内視鏡本体の操作部側と先端部側との
間を連通する独立した複数の流路を備えた流体流通手段
を設けるとともに、この流体流通手段の一部の流路を通
して前記内視鏡本体の先端部側に液体を供給し、かつ前
記内視鏡本体の先端部側を吸引する手段および前記流体
流通手段の他の流路を通して前記内視鏡本体の先端部側
に気体を吹き付ける送気手段を設けたことを特徴とする
内視鏡装置。1. An exterior body provided on the body of the endoscope,
The exterior body is provided with a fluid circulation means having a plurality of independent flow passages that communicate between the operation portion side and the distal end portion side of the endoscope body, and through a part of the flow passages of the fluid circulation means. A liquid is supplied to the tip end side of the endoscope body, and the tip end side of the endoscope body is passed through another channel of the means for sucking the tip end side of the endoscope body and the fluid circulating means. An endoscope apparatus comprising an air supply unit for blowing gas.
JP08320594A 1994-04-21 1994-04-21 Endoscope device Expired - Fee Related JP3465953B2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP08320594A JP3465953B2 (en) 1994-04-21 1994-04-21 Endoscope device
US08/420,489 US5697888A (en) 1994-04-21 1995-04-12 Endoscope apparatus having valve device for supplying water and gas

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP08320594A JP3465953B2 (en) 1994-04-21 1994-04-21 Endoscope device

Publications (2)

Publication Number Publication Date
JPH07289501A true JPH07289501A (en) 1995-11-07
JP3465953B2 JP3465953B2 (en) 2003-11-10

Family

ID=13795831

Family Applications (1)

Application Number Title Priority Date Filing Date
JP08320594A Expired - Fee Related JP3465953B2 (en) 1994-04-21 1994-04-21 Endoscope device

Country Status (1)

Country Link
JP (1) JP3465953B2 (en)

Cited By (7)

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US9033929B2 (en) 2008-04-28 2015-05-19 Ethicon Endo-Surgery, Inc. Fluid removal in a surgical access device
USD735852S1 (en) 2008-04-28 2015-08-04 Ethicon Endo-Surgery, Inc. Fluid remover
USD736926S1 (en) 2008-04-28 2015-08-18 Ethicon Endo-Sugery, Inc. Trocar housing
JP2016522707A (en) * 2013-04-26 2016-08-04 メドトロニック・ゾーメド・インコーポレーテッド Endoscope lens cleaning device
CN109661207A (en) * 2016-04-21 2019-04-19 贝勒医学院 Casing
US11235111B2 (en) 2008-04-28 2022-02-01 Ethicon Llc Surgical access device
US11583176B2 (en) 2019-11-05 2023-02-21 Bayou Surgical, Inc. Intraoperative endoscope cleaning system

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9033929B2 (en) 2008-04-28 2015-05-19 Ethicon Endo-Surgery, Inc. Fluid removal in a surgical access device
USD735852S1 (en) 2008-04-28 2015-08-04 Ethicon Endo-Surgery, Inc. Fluid remover
USD736926S1 (en) 2008-04-28 2015-08-18 Ethicon Endo-Sugery, Inc. Trocar housing
US9827383B2 (en) 2008-04-28 2017-11-28 Ethicon Llc Surgical access device
US11235111B2 (en) 2008-04-28 2022-02-01 Ethicon Llc Surgical access device
JP2016522707A (en) * 2013-04-26 2016-08-04 メドトロニック・ゾーメド・インコーポレーテッド Endoscope lens cleaning device
CN109661207A (en) * 2016-04-21 2019-04-19 贝勒医学院 Casing
JP2019523658A (en) * 2016-04-21 2019-08-29 ベイラー カレッジ オブ メディスンＢａｙｌｏｒ Ｃｏｌｌｅｇｅ Ｏｆ Ｍｅｄｉｃｉｎｅ Trocar
JP2022031712A (en) * 2016-04-21 2022-02-22 ベイラー カレッジ オブ メディスン Trocars
US11751759B2 (en) 2016-04-21 2023-09-12 Baylor College Of Medicine Trocars
US11583176B2 (en) 2019-11-05 2023-02-21 Bayou Surgical, Inc. Intraoperative endoscope cleaning system
US11805968B2 (en) 2019-11-05 2023-11-07 Bayou Surgical, Inc. Intraoperative endoscope cleaning system

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