JP3372273B2 - Endoscope device - Google Patents
Endoscope deviceInfo
- Publication number
- JP3372273B2 JP3372273B2 JP26381292A JP26381292A JP3372273B2 JP 3372273 B2 JP3372273 B2 JP 3372273B2 JP 26381292 A JP26381292 A JP 26381292A JP 26381292 A JP26381292 A JP 26381292A JP 3372273 B2 JP3372273 B2 JP 3372273B2
- Authority
- JP
- Japan
- Prior art keywords
- endoscope
- connecting portion
- bending
- guide
- connector
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Description
【発明の詳細な説明】
【０００１】
【産業上の利用分野】本発明は、内視鏡挿入部の先端側
に設けられている例えば湾曲部などの可動部を内視鏡の
外部に配設した電動モータなどで駆動する内視鏡装置に
関する。
【０００２】
【従来の技術】従来、体腔内に細長の挿入部を挿入する
ことにより、体腔内の臓器を観察したり、必要に応じ、
処置具チャンネル内に処置具を挿通して、各種治療及び
処置のできる内視鏡が広く利用されている。また、医療
分野に限らず工業分野においても、ボイラ，タービン，
エンジン，化学プラントなどの内部の傷や腐蝕を観察し
たり検査するための工業用内視鏡が広く利用されてい
る。
【０００３】近年、前記内視鏡挿入部の先端側に設けら
れている、例えば、湾曲部に操作ワイヤを接続し、この
操作ワイヤを電動モータによって牽引することによって
上下／左右に自在に湾曲させるように構成した内視鏡装
置が用いられている。前記内視鏡の湾曲部は、内視鏡の
操作部に設けた湾曲スイッチの操作に対応して駆動する
電動モータの駆動力によって操作ワイヤを牽引して湾曲
部を上下、或いは、左右方向に湾曲させて所望の湾曲角
を設定して内視鏡先端部に設けた被写体像の入射する観
察窓を観察部位に対設させるようにしている。
【０００４】そして、特開平３−２８０９１９号公報に
は湾曲部などを湾曲させるためのモータを内視鏡操作部
の外部に設け、この内視鏡操作部の外部に設けたモータ
と内視鏡とを着脱自在にした内視鏡装置が提案されてい
る。前記内視鏡装置は、モータを操作部の外部に設ける
ことによって内視鏡操作部を軽量化することができるの
で内視鏡操作部を片手で把持しながら湾曲スイッチを容
易に操作することができると共に、モータから内視鏡が
着脱自在なことによって内視鏡の洗滌及び消毒作業を確
実、且つ、容易に行なえるようになった。
【０００５】
【発明が解決しようとする課題】しかしながら、前記特
開平３−２８０９１９号公報に提案されている内視鏡装
置ではモータと内視鏡とを連結する際、このモータの出
力軸（第２の連結部）と内視鏡の連結部（第１の連結
部）とを同軸に接続することが難しく、特に、上下用モ
ータ及び左右用モータの二つの出力軸（第２の連結部）
を有する湾曲制御装置と内視鏡の上下用動力伝達部連結
部及び左右用動力伝達部連結部（第１の連結部）とを同
軸に接続することは極めて困難であった。
【０００６】本発明は上記事情に鑑みてなされたもの
で、内視鏡に備えられている可動部に接続する動力伝達
部に設けた第１の連結部と、内視鏡の外部に設けた動力
源に設けた第２の連結部とを着脱自在であって同軸に連
結する内視鏡装置を提供することを目的としている。
【０００７】
【課題を解決するための手段】本発明による内視鏡装置
は、内視鏡に備えられた可動部に一端が接続され前記内
視鏡の内部を延出する動力伝達部と、この動力伝達部の
他端に設けられる第１の連結部と、前記第１の連結部に
設けられ、その端部が先細に形成された案内部と、この
案内部と嵌合し、先端側から後方側に向かって傾斜する
傾斜面を形成する被案内部と、一端が前記被案内部と、
他端が前記内視鏡の外部に配設した動力源の駆動軸と連
結する第２の連結部と、前記第２の連結部と前記動力源
との間に配設され、前記第１の連結部と第２の連結部と
を連結する際に前記案内部が相対的に前記被案内部の傾
斜面に案内された結果、前記第1及び第２の連結部の相
対的な移動量を吸収するカップリング手段と、を具備し
たことを特徴とする。
【０００８】
【０００９】
【実施例】以下、図面を参照して本発明の実施例を説明
する。図１ないし図９は本発明の一実施例に係り、図１
は内視鏡装置の概略構成を示す説明図、図２は動力伝達
部及び動力源の概略構成を示す断面図、図３は図２のＡ
−Ａ断面図、図４は動力伝達部の第１の連結部の側面
図、図５はコネクタ内部の概略構成を示す説明図、図６
は動力伝達部の第１の連結部及び動力源の第２の連結部
の側面図、図７は動力伝達部の第１の連結部及び動力部
の第２の連結部の正面図、図８はコネクタの概略を示す
説明図、図９は鉗子起立装置用ワイヤの断面図である。
【００１０】図１に示すように、内視鏡装置１は、例え
ば、体腔内に挿入する内視鏡挿入部２の先端側に可動部
となる湾曲部３を配設した湾曲可能な内視鏡４と、この
内視鏡４の湾曲部３を制御する湾曲制御装置５と、前記
内視鏡４の観察部位を照射するための光源装置６と、体
腔内を目視観察するために画像制御装置７に接続される
モニタ８と、体腔内に送水、或いは、体液を吸引する流
体制御装置９などから構成している。
【００１１】前記内視鏡４は、被検体に挿通する内視鏡
挿入部２の先端側より硬性の先端部４１，湾曲自在な湾
曲部３，可撓性を有する可撓部４２を順次連接する一
方、この内視鏡挿入部２の後端に操作部４３を連設して
いる。そして、前記操作部４３の後端には湾曲スイッチ
４４が設けられ、この湾曲スイッチ４４を操作すること
によって湾曲制御装置５の動力源であるモータが駆動し
て湾曲部３から延出されている動力伝達部を介して湾曲
部３を所定量湾曲させて内視鏡先端部４１の図示しない
観察窓を観察部に対設させるようになっている。
【００１２】なお、前記内視鏡４の先端部４１には、図
示しない観察部を照明する配光レンズ、観察部を観察す
るための対物レンズや処置具・チューブなどを挿通する
ための処置具挿通用チャンネルなどが設けられている。
そして、前記対物レンズの結像位置には固体撮像素子が
配設され、この固体撮像素子の後端からは信号線が延出
されている。また、前記配光レンズの後端にはライトガ
イドが臨まれている。さらに、前記湾曲部３の湾曲駒に
は上下方向及び左右方向に湾曲部を湾曲させるための上
下用操作ワイヤ及び左右用操作ワイヤがそれぞれ所定の
位置に接続されている。
【００１３】前記固体撮像素子から延出する信号線は、
挿入部２，操作部４３，ユニバーサルコード４５、コネ
クタ３０の内部を挿通して電気ケーブル３１を介して画
像制御装置７に電気的に接続されるようになっている。
同様に、前記ライトガイドは、挿入部２，操作部４３，
ユニバーサルコード４５、コネクタ３０の内部を挿通し
て電気ケーブル３２を介して光源装置６に電気的に接続
されるようになっている。また、前記上下用操作ワイヤ
及び左右用操作ワイヤは、湾曲部３，可撓部４２，操作
部４３，ユニバーサルコード４５、コネクタ３０内部に
配設した後述する第１の連結部と湾曲制御装置５の第２
の連結部とを連結して湾曲部３を自在に湾曲動作させる
ことができるようになっている。さらに、内視鏡４の処
置具挿通用チャンネルに送液用チューブ３３などを流体
制御装置９を介して挿通することによって観察部位に送
液したり、観察部位の液体を吸引することができるよう
になっている。
【００１４】なお、前記湾曲制御装置５に接続されるコ
ネクタ３０の先端部３０ａには、この先端部３０ａを湾
曲制御装置５に接続したとき前記コネクタ３０が所定の
位置に位置決めされるようにＯリングなどの弾性を有す
る位置決め部材３０ｂが配設されている。
【００１５】図２に示すようにユニバーサルコード４５
の先端部に設けられているコネクタ３０の内部には、上
下用操作ワイヤ及び左右用操作ワイヤを牽引するための
動力伝達部１９に上下用及び左右用の第１の連結部１０
がこのコネクタ先端部３０ａから突出しないように設け
られている。
【００１６】一方、前記湾曲部３を湾曲させるための湾
曲制御装置５には、前記上下用操作ワイヤ及び左右用操
作ワイヤを牽引するための動力源としての上下用モータ
５１及び左右用モータ５２とこのモータ５１、５２の駆
動力を第１の連結部１０を介してそれぞれの操作ワイヤ
に伝達するための第２の連結部２０が第１の連結部１０
に対応し湾曲制御装置５から突出しない位置に設けられ
ている。
【００１７】すなわち、前記上下用モータ５１の駆動軸
にはこの上下用モータ５１の回転伝達を制御する電磁ク
ラッチ５３、駆動軸の偏心を吸収するための第１のユニ
バーサルカプリング５４、ベース台５５に図示しないベ
アリングなどを介して固定された位置決め回転軸５６、
この位置決め回転軸５６の偏心を吸収するための第２の
ユニバーサルカプリング６１そして先端部に第２の連結
部２０を順次配設して上下用モータ５１の駆動力が第２
の連結部２０に伝達されるようになっている。
【００１８】また、左右用モータ５２の駆動軸には前記
上下用モータ５１の駆動軸と同様に電磁クラッチ５３及
び第１のユニバーサルカプリング５４が順次配設され、
ベース台５５には並列に配設された一組の位置決め回転
軸５６及び５７がタイミングベルト５８を介して配設さ
れている。そして、前記左右用モータ５２の回転を位置
決め回転軸５７からタイミングベルト５８に伝達して位
置決め回転軸５６、第２のユニバーサルカプリング６１
を介して第２の連結部２０に伝達するように配設してい
る。
【００１９】なお、図３に示すように左右用モータ５２
の駆動力を位置決め回転軸５７から位置決め回転軸５６
に伝達するタイミングベルト５８がたるまないようにす
るためにアイドラ５９をタイミングベルト５８の中途に
配設している。
【００２０】また、図２及び図４に示すように前記コネ
クタ３０の内部に設けられている第１の連結部１０の回
転軸３４には動力伝達部１９としての第１のベベルギア
３５が固定されており、この第１のベベルギア３５と噛
合する第２のベベルギア３６が前記回転軸３４と直交す
るように配設されている回転軸３７に固定されている。
そして、この回転軸３７にはスプロケット３８が一体的
に配設され、このスプロケット３８にチェーン３９が噛
合している。そして、図５に示すようにスプロケット３
８に噛合しているチェーン３９の両端部には内視鏡湾曲
部に接続される操作ワイヤが接続されるようになってい
る。
【００２１】さらに、図２、或いは、図６及び図７に示
すように第１の連結部１０、或いは、第２の連結部２０
の先端部には一対の案内部１１及び被案内部２１を設け
ている。図６及び図７に示すように、例えば、第１の連
結部１０に設けた案内部１１は、中心部に軸方向の盲穴
１２を有する円筒にスリット１３が十字形状となるよう
に形成されている。前記スリット１３を嵌合溝として設
けたことによって形成された４つの凸部１４の先端部１
５は先端側から後方側に向かって傾斜する略四角錐状の
傾斜面を形成している。また、第２の連結部２０に設け
た被案内部２１は、略円錐形状に形成した先端部２２を
有する円筒に前記スリット１３に嵌合する嵌合部２３を
有する先端側を先細に形成した突起部２４を設けてい
る。
【００２２】上述のように形成された第１の連結部１０
及び第２の連結部２０を有する内視鏡装置１の作用を説
明する。まず、術者は、前記内視鏡装置１を使用すると
き、内視鏡２のユニバーサルコード４５の端部に配設さ
れているコネクタ３０に送水用チューブ３３及び電気ケ
ーブル３１、３２などを接続してコネクタ３０の先端部
３０ａを湾曲制御装置５に接続する。
【００２３】次に、装置の電源をオンにして内視鏡４の
湾曲部３を湾曲操作しながら体腔内を照明して内視鏡４
を所望の位置に挿入して観察及び検査・処置を行う。そ
して、内視鏡使用後、速やかにコネクタ３０を湾曲制御
装置５から取り外して内視鏡４の滅菌処理を行う。
【００２４】このように、コネクタ３０を湾曲制御装置
接続部５ａに接続する際に、コネクタ３０の内部に配設
した第１の連結部１０に設けた案内部１１となる凸部１
４の先端部１５を四角錐状に形成すると共に、湾曲制御
装置５の内部に配設した第２の連結部２０の被案内部２
１となる突起部２４の先端を先細に形成したことによっ
て第１の連結部１０と第２の連結部２０の中心軸とがた
とえ偏心した状態で接続されようとしても被案内部２１
の先細の突起部２４が案内部１１の先端部１５の傾斜面
に沿って嵌合溝であるスリット１３に嵌合部２３が合致
するように挿入されて同軸に接続することができる。
【００２５】また、第１の連結部１０、或いは、第２の
連結部２０に一組の案内部１１及び被案内部２１を設け
たことによって湾曲制御装置５へのコネクタ３０の着脱
が容易になる一方、第１の連結部１０をコネクタ３０内
部に配設すると共に、第２の連結部２０を湾曲制御装置
５の内部に配設したので指などが連結部にふれることが
なくなるので安全性が向上する。
【００２６】さらに、コネクタ先端部３０ａに配設した
接続部材３０ｂが湾曲制御装置接続部５ａに形成した溝
部５ｂに嵌合してコネクタ３０を所定の位置に位置決め
して固定することができる。
【００２７】なお、図８に示すようにコネクタ３０に電
気ケーブル３１、３２及び送水チューブ３３を一体的に
接続するジョイント部材８１にすることによってコネク
タ３０と湾曲制御装置５、光源装置６、画像制御装置７
などとの接続を一度に行うことができる。
【００２８】また、図９に示すように前記動力源の駆動
力を鉗子起上用に用いるときの鉗子起常用ワイヤ９１を
芳香族アラミド繊維などの寄り線９２を使用してテフロ
ン９３で被覆することによってテフロン９３が寄り線９
２の繊維と繊維との間に浸透して密着性が向上すること
によって体腔内で起上操作したときの汚物の付着を抑制
することができる。
【００２９】さらに、前記図５に示すようにスプロケッ
ト３８に噛合するチェーン３９は、中央案内板７１とガ
イド板７２との間を移動するようになっている。そこ
で、前記中央案内板７１とガイド板７２との間を移動す
るチェーン３９の両端部にガイド板側に突出した凸部７
３を有するチェーンエンド部材７４を配設することによ
って、このチェーンエンド部材７４の凸部７３がガイド
板用支柱７５に当接することによってチェーン３９のス
トッパの役目をする。
【００３０】
【発明の効果】以上説明したように本発明によれば、内
視鏡に備えられている可動部に接続する動力伝達部に設
けた第１の連結部と、内視鏡の外部に設けた動力源に設
けた第２の連結部とを着脱自在であって同軸に連結する
内視鏡装置を提供することができる。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a movable portion such as a curved portion provided on the distal end side of an endoscope insertion portion, which is provided outside the endoscope. The present invention relates to an endoscope device driven by an electric motor or the like. [0002] Conventionally, by inserting an elongated insertion portion into a body cavity, an organ in the body cavity can be observed, and if necessary,
Endoscopes capable of performing various treatments and treatments by inserting a treatment tool into a treatment tool channel are widely used. In addition, not only in the medical field but also in the industrial field, boilers, turbines,
Industrial endoscopes for observing and inspecting internal scratches and corrosion of engines and chemical plants are widely used. In recent years, for example, an operation wire is connected to a bending portion provided on the distal end side of the endoscope insertion portion, and this operation wire is freely bent up and down / left and right by being pulled by an electric motor. An endoscope apparatus configured as described above is used. The bending portion of the endoscope pulls an operation wire by a driving force of an electric motor that is driven in accordance with an operation of a bending switch provided in an operation portion of the endoscope to vertically move the bending portion, or in the left-right direction. A desired bending angle is set by bending, and an observation window, which is provided at the distal end portion of the endoscope and through which a subject image is incident, is provided so as to face the observation region. [0004] Japanese Patent Application Laid-Open No. 3-280919 discloses a motor for bending a bending portion or the like provided outside an endoscope operation section. The motor provided outside the endoscope operation section and an endoscope are provided. An endoscope device has been proposed in which the endoscope is detachable. The endoscope apparatus can reduce the weight of the endoscope operation unit by providing the motor outside the operation unit, so that the bending switch can be easily operated while holding the endoscope operation unit with one hand. In addition, the endoscope can be washed and disinfected reliably and easily by detaching the endoscope from the motor. [0005] However, in the endoscope apparatus proposed in Japanese Patent Laid-Open No. 3-280919, when the motor and the endoscope are connected, the output shaft of the motor (the It is difficult to coaxially connect the connecting portion of the endoscope and the connecting portion of the endoscope (the first connecting portion). In particular, the two output shafts of the up / down motor and the left / right motor (the second connecting portion)
It has been extremely difficult to coaxially connect the bending control device having the above and the power transmission unit connecting portion for the up and down and the left and right power transmitting unit (the first connecting portion) of the endoscope. The present invention has been made in view of the above circumstances, and has a first connecting portion provided on a power transmitting portion connected to a movable portion provided in an endoscope, and a first connecting portion provided outside the endoscope. It is an object of the present invention to provide an endoscope apparatus which is detachably and coaxially connected to a second connecting portion provided on a power source. [0007] An endoscope apparatus according to the present invention includes a power transmission section having one end connected to a movable section provided in the endoscope and extending inside the endoscope ; Of this power transmission
A first connecting portion provided at the other end, and a first connecting portion;
A guide portion whose end is tapered,
Fits with the guide and tilts from the tip to the rear
A guided portion forming an inclined surface, one end of the guided portion,
The other end is connected to the drive shaft of a power source disposed outside the endoscope.
A second connecting portion to be connected, and a second connecting portion disposed between the second connecting portion and the power source, wherein when the first connecting portion and the second connecting portion are connected to each other, the guide portions are relatively opposed to each other. Of the guided part
As a result of being guided on the slope, the phase of the first and second connecting portions is changed.
And a coupling means for absorbing an opposite moving amount . An embodiment of the present invention will be described below with reference to the drawings. 1 to 9 relate to one embodiment of the present invention.
Is an explanatory diagram showing a schematic configuration of an endoscope apparatus, FIG. 2 is a cross-sectional view showing a schematic configuration of a power transmission unit and a power source, and FIG.
-A cross-sectional view, FIG. 4 is a side view of the first connecting portion of the power transmission unit, FIG. 5 is an explanatory diagram showing a schematic configuration inside the connector, and FIG.
FIG. 7 is a side view of a first connection part of the power transmission unit and a second connection part of the power source. FIG. 7 is a front view of the first connection part of the power transmission unit and the second connection part of the power unit. Is an explanatory view showing an outline of a connector, and FIG. 9 is a sectional view of a wire for a forceps erecting device. As shown in FIG. 1, an endoscope apparatus 1 is provided with a bending section 3 serving as a movable section at the distal end of an endoscope insertion section 2 to be inserted into a body cavity. A mirror 4, a bending control device 5 for controlling the bending portion 3 of the endoscope 4, a light source device 6 for irradiating an observation site of the endoscope 4, and an image control device for visually observing the inside of a body cavity. It comprises a monitor 8 connected to the device 7 and a fluid control device 9 for feeding water into the body cavity or sucking body fluid. In the endoscope 4, a rigid distal end 41, a bendable bending portion 3, and a flexible portion 42 having flexibility are sequentially connected from the distal end side of the endoscope insertion portion 2 to be inserted into a subject. On the other hand, an operation section 43 is continuously provided at the rear end of the endoscope insertion section 2. A bending switch 44 is provided at the rear end of the operation unit 43. By operating the bending switch 44, a motor that is a power source of the bending control device 5 is driven to extend from the bending unit 3. The bending section 3 is bent by a predetermined amount via the power transmission section so that an observation window (not shown) of the endoscope distal end section 41 is provided to face the observation section. A distal end portion 41 of the endoscope 4 is provided with a light distribution lens for illuminating an observation section (not shown), an objective lens for observing the observation section, and a treatment instrument for inserting a treatment instrument / tube. An insertion channel and the like are provided.
A solid-state imaging device is provided at an image forming position of the objective lens, and a signal line extends from a rear end of the solid-state imaging device. A light guide faces the rear end of the light distribution lens. Further, an up / down operation wire and a left / right operation wire for bending the bending portion in the vertical and horizontal directions are connected to predetermined positions of the bending piece of the bending portion 3 respectively. A signal line extending from the solid-state image sensor includes:
The insertion section 2, the operation section 43, the universal cord 45, and the inside of the connector 30 are inserted to be electrically connected to the image control device 7 via the electric cable 31.
Similarly, the light guide includes an insertion portion 2, an operation portion 43,
The universal cord 45 and the inside of the connector 30 are inserted to be electrically connected to the light source device 6 via the electric cable 32. The up / down operation wire and the left / right operation wire include a bending portion 3, a flexible portion 42, an operation portion 43, a universal cord 45, and a first connecting portion (described later) disposed inside the connector 30 and a bending control device 5. Second
And the bending portion 3 can be freely bent. Further, by inserting a liquid feeding tube 33 or the like through the treatment tool insertion channel of the endoscope 4 via the fluid control device 9, liquid can be sent to the observation site or the liquid at the observation site can be sucked. It has become. The distal end portion 30a of the connector 30 connected to the bending control device 5 has an O such that when the distal end portion 30a is connected to the bending control device 5, the connector 30 is positioned at a predetermined position. An elastic positioning member 30b such as a ring is provided. [0015] As shown in FIG.
The power transmission unit 19 for pulling the up / down operation wire and the left / right operation wire is provided inside the connector 30 provided at the distal end of the first connection unit 10 for up / down and left / right operation.
Are provided so as not to protrude from the connector tip 30a. On the other hand, a bending control device 5 for bending the bending portion 3 includes a vertical motor 51 and a left and right motor 52 as power sources for pulling the vertical operation wires and the left and right operation wires. The second connecting portion 20 for transmitting the driving force of the motors 51 and 52 to the respective operation wires via the first connecting portion 10 is connected to the first connecting portion 10.
And is provided at a position that does not protrude from the bending control device 5. That is, an electromagnetic clutch 53 for controlling the rotation transmission of the vertical motor 51, a first universal coupling 54 for absorbing the eccentricity of the drive shaft, and a base table 55 are provided on the drive shaft of the vertical motor 51. A positioning rotary shaft 56 fixed via bearings (not shown),
The second universal coupling 61 for absorbing the eccentricity of the positioning rotation shaft 56 and the second connecting portion 20 at the tip end are sequentially disposed so that the driving force of the up / down motor 51 is reduced to the second.
Is transmitted to the connecting portion 20. An electromagnetic clutch 53 and a first universal coupling 54 are sequentially provided on the drive shaft of the left and right motors 52 similarly to the drive shaft of the up and down motor 51,
A pair of positioning rotation shafts 56 and 57 disposed in parallel on the base table 55 are disposed via a timing belt 58. Then, the rotation of the left and right motors 52 is transmitted from the positioning rotation shaft 57 to the timing belt 58 so that the positioning rotation shaft 56 and the second universal coupling 61 are rotated.
Are arranged so as to be transmitted to the second connecting portion 20 through Note that, as shown in FIG.
The driving force of the positioning rotary shaft 57 is transferred from the positioning rotary shaft 57 to the positioning rotary shaft 56.
An idler 59 is provided in the middle of the timing belt 58 to prevent the timing belt 58 transmitting to the belt from sagging. As shown in FIGS. 2 and 4, a first bevel gear 35 as a power transmission unit 19 is fixed to a rotation shaft 34 of a first connection unit 10 provided inside the connector 30. A second bevel gear 36 that meshes with the first bevel gear 35 is fixed to a rotating shaft 37 disposed so as to be orthogonal to the rotating shaft 34.
A sprocket 38 is integrally provided on the rotating shaft 37, and a chain 39 meshes with the sprocket 38. Then, as shown in FIG.
An operation wire connected to the endoscope bending section is connected to both ends of the chain 39 meshing with the chain 8. Further, as shown in FIG. 2, or FIGS. 6 and 7, the first connecting portion 10 or the second connecting portion 20 is formed.
Are provided with a pair of guide portions 11 and guided portions 21 at the distal end portion. As shown in FIGS. 6 and 7, for example, the guide portion 11 provided in the first connecting portion 10 is formed such that the slit 13 has a cross shape in a cylinder having a blind hole 12 in the center in the axial direction. ing. Tip portions 1 of four projections 14 formed by providing slits 13 as fitting grooves
Reference numeral 5 forms a substantially quadrangular pyramid-shaped inclined surface that is inclined from the front end toward the rear. The guided portion 21 provided on the second connecting portion 20 is formed such that a distal end side having a fitting portion 23 fitted in the slit 13 is tapered in a cylinder having a tip portion 22 formed in a substantially conical shape. A projection 24 is provided. The first connecting portion 10 formed as described above
The operation of the endoscope device 1 having the second connecting portion 20 will be described. First, when using the endoscope apparatus 1, the surgeon connects the water supply tube 33 and the electric cables 31 and 32 to the connector 30 provided at the end of the universal cord 45 of the endoscope 2. Then, the distal end portion 30 a of the connector 30 is connected to the bending control device 5. Next, the inside of the body cavity is illuminated while the power of the apparatus is turned on and the bending section 3 of the endoscope 4 is operated to bend.
Is inserted into a desired position for observation, inspection and treatment. Then, after using the endoscope, the connector 30 is promptly removed from the bending control device 5 and the endoscope 4 is sterilized. As described above, when the connector 30 is connected to the bending control device connecting portion 5a, the convex portion 1 serving as the guide portion 11 provided on the first connecting portion 10 provided inside the connector 30.
4 is formed in the shape of a quadrangular pyramid, and the guided portion 2 of the second connecting portion 20 disposed inside the bending control device 5.
By forming the tip of the projection 24 which is 1 to be tapered, even if the first connecting portion 10 and the central axis of the second connecting portion 20 are connected in an eccentric state, the guided portion 21 is formed.
The tapered projection 24 is inserted along the inclined surface of the distal end portion 15 of the guide portion 11 so that the fitting portion 23 matches the slit 13 which is a fitting groove, and can be connected coaxially. Further, by providing a pair of guide portions 11 and guided portions 21 on the first connecting portion 10 or the second connecting portion 20, the connector 30 can be easily attached to and detached from the bending control device 5. On the other hand, since the first connecting portion 10 is provided inside the connector 30 and the second connecting portion 20 is provided inside the bending control device 5, a finger or the like does not touch the connecting portion, so that safety is improved. Is improved. Further, the connecting member 30b provided on the connector tip portion 30a is fitted into the groove 5b formed on the bending control device connecting portion 5a so that the connector 30 can be positioned and fixed at a predetermined position. As shown in FIG. 8, a joint member 81 for integrally connecting the electric cables 31, 32 and the water supply tube 33 to the connector 30 allows the connector 30, the bending control device 5, the light source device 6, the image control Device 7
Can be connected at once. As shown in FIG. 9, when the driving force of the power source is used for raising the forceps, the wire 91 for raising the forceps is covered with Teflon 93 by using a deviating line 92 such as an aromatic aramid fiber. As a result, Teflon 93 shifts to 9
The permeation between the fibers 2 and the fibers improves the adhesion, and thus the adhesion of dirt when the user performs the raising operation in the body cavity can be suppressed. Further, as shown in FIG. 5, the chain 39 meshing with the sprocket 38 moves between the central guide plate 71 and the guide plate 72. Therefore, the protrusions 7 protruding toward the guide plate are provided at both ends of the chain 39 moving between the central guide plate 71 and the guide plate 72.
By arranging the chain end member 74 having 3, the projection 73 of the chain end member 74 abuts on the guide plate support 75, thereby serving as a stopper for the chain 39. As described above, according to the present invention, the first connecting portion provided on the power transmitting portion connected to the movable portion provided in the endoscope, and the outside of the endoscope. It is possible to provide an endoscope apparatus which is detachably and coaxially connected to a second connecting portion provided to a power source provided to the power source.
【図面の簡単な説明】
【図１】図１ないし図９は本発明の一実施例に係り、図
１は内視鏡装置の概略構成を示す説明図
【図２】動力伝達部及び動力源の概略構成を示す断面図
【図３】図２のＡ−Ａ断面図
【図４】動力伝達部の第１の連結部の側面図
【図５】コネクタ内部の概略構成を示す説明図
【図６】動力伝達部の第１の連結部及び動力源の第２の
連結部の側面図
【図７】動力伝達部の第１の連結部及び動力源の第２の
連結部の正面図
【図８】コネクタの概略を示す説明図
【図９】鉗子起立装置用ワイヤの断面図
【符号の説明】
１…内視鏡装置
１０…第１の連結部
１１…案内部
１９…動力伝達部
２０…第２の連結部
２１…被案内部
５１…動力源（上下用モータ）BRIEF DESCRIPTION OF THE DRAWINGS FIGS. 1 to 9 relate to an embodiment of the present invention, and FIG. 1 is an explanatory view showing a schematic configuration of an endoscope apparatus. FIG. 2 is a power transmission section and a power source. FIG. 3 is a sectional view taken along line AA of FIG. 2; FIG. 4 is a side view of a first connecting portion of a power transmission unit; FIG. 5 is an explanatory view showing a schematic structure inside a connector; 6 is a side view of a first connecting portion of the power transmitting portion and a second connecting portion of the power source. FIG. 7 is a front view of the first connecting portion of the power transmitting portion and the second connecting portion of the power source. 8 is an explanatory view schematically showing a connector. FIG. 9 is a cross-sectional view of a wire for a forceps erecting device. [Description of References] 1. Endoscope device 10 First connecting portion 11 Guide portion 19 Power transmitting portion 20 Second connecting portion 21 Guided portion 51 Power source (vertical motor)
フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) A61B 1/00 - 1/32 G02B 23/24 - 23/26 F16D 1/10 Continuation of the front page (58) Field surveyed (Int. Cl. 7 , DB name) A61B 1/00-1/32 G02B 23/24-23/26 F16D 1/10
Claims (1)
され前記内視鏡の内部を延出する動力伝達部と、この動
力伝達部の他端に設けられる第１の連結部と、前記第１
の連結部に設けられ、その端部が先細に形成された案内
部と、この案内部と嵌合し、先端側から後方側に向かっ
て傾斜する傾斜面を形成する被案内部と、一端が前記被
案内部と、他端が前記内視鏡の外部に配設した動力源の
駆動軸と連結する第２の連結部と、前記第２の連結部と
前記動力源との間に配設され、前記第１の連結部と第２
の連結部とを連結する際に前記案内部が相対的に前記被
案内部の傾斜面に案内された結果、前記第1及び第２の
連結部の相対的な移動量を吸収するカップリング手段と
を具備したことを特徴とする内視鏡装置。(57) [Claim 1] One end is connected to a movable portion provided in an endoscope.
A power transmission section extending the inside of the endoscope is, the dynamic
A first connecting portion provided at the other end of the force transmission portion, the first
The guide is provided at the connecting part of which the end is tapered.
Part and this guide part, and from the tip side to the back side
A guided portion forming an inclined surface that is inclined by
The guide section and the other end of the power source disposed outside the endoscope.
A second connecting portion connected to a drive shaft, and a second connecting portion provided between the second connecting portion and the power source;
The guide portion is relatively the object when connecting the connecting portion of the
An endoscope apparatus comprising: coupling means for absorbing a relative movement amount of the first and second connecting portions as a result of being guided on the inclined surface of the guiding portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26381292A JP3372273B2 (en) | 1992-10-01 | 1992-10-01 | Endoscope device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26381292A JP3372273B2 (en) | 1992-10-01 | 1992-10-01 | Endoscope device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06114001A JPH06114001A (en) | 1994-04-26 |
| JP3372273B2 true JP3372273B2 (en) | 2003-01-27 |
Family
ID=17394587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26381292A Expired - Fee Related JP3372273B2 (en) | 1992-10-01 | 1992-10-01 | Endoscope device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3372273B2 (en) |
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Also Published As
| Publication number | Publication date |
|---|---|
| JPH06114001A (en) | 1994-04-26 |
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