【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、内視鏡カバーへのカバ
ー用内視鏡の挿入性を向上させるカバー式内視鏡に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cover type endoscope for improving the insertability of a cover endoscope into an endoscope cover.
【０００２】[0002]
【従来の技術】従来より、内視鏡検査の際、内視鏡によ
る感染症などを防止するため、内視鏡を検査前に十分に
洗浄消毒を施す必要があった。2. Description of the Related Art Conventionally, it has been necessary to sufficiently clean and disinfect an endoscope prior to the inspection in order to prevent an infection caused by the endoscope during an endoscopic inspection.
【０００３】しかし、一度患者の体腔内に挿入して使用
した内視鏡を洗浄消毒ことは時間のかかる煩わしい作業
であった。そこで近年、内視鏡検査の際、検査後に洗浄
消毒を施して再使用する内視鏡に替えて、内視鏡にカバ
ーを装着したカバー式内視鏡を体腔内に挿入して検査
し、検査終了後に内視鏡を覆っていたカバーを廃棄・交
換するようにした使い捨てのカバーを備えたカバー式内
視鏡が提案されている。However, cleaning and disinfecting an endoscope once used by inserting it into a body cavity of a patient is a time-consuming and troublesome operation. Therefore, in recent years, at the time of endoscopy, in place of an endoscope that is cleaned and disinfected after inspection and reused, a cover type endoscope with a cover attached to the endoscope is inserted into the body cavity and inspected, A cover-type endoscope provided with a disposable cover in which the cover covering the endoscope is discarded or replaced after the end of the examination has been proposed.
【０００４】このカバー式内視鏡は、体腔内と連通して
被検者の体液等に触れて汚染される可能性のある部分を
内視鏡カバー側に形成し、体腔内の体液などに触れる必
要の無い観察光学系や照明光学系を内視鏡側に設けたも
のである。[0004] In this cover type endoscope, a portion which may be contaminated by touching a body fluid of a subject by communicating with the body cavity is formed on the endoscope cover side, and the body fluid in the body cavity is formed. An observation optical system and an illumination optical system that do not need to be touched are provided on the endoscope side.
【０００５】例えは、実開平３−１３１０５号公報には
内視鏡カバーの挿入部カバー部の手元側に位置する口体
部の構造が開示されている。For example, Japanese Unexamined Utility Model Publication No. Hei 3-13105 discloses a structure of a mouth portion located close to an insertion portion cover of an endoscope cover.
【０００６】[0006]
【発明が解決しようとする課題】前記実開平３−１３１
０５号公報に示す口体部の構造では、口体部に挿通され
ているカバー用内視鏡の挿入部とチャンネルチューブと
の間にゆとりが無い（チャンネルチューブをたるませて
おく空間）ため、カバー用内視鏡の内視鏡カバーへの挿
入が難しかった。また、手元側の口体部に仕切部が設け
られていないことからチャンネルチューブが内視鏡挿入
部にまとわりつく構造であった。SUMMARY OF THE INVENTION
In the structure of the mouth part disclosed in Japanese Patent Publication No. 05, there is no space between the insertion part of the endoscope for a cover inserted into the mouth part and the channel tube (a space for sagging the channel tube). It was difficult to insert the cover endoscope into the endoscope cover. In addition, since no partition is provided in the mouth portion on the hand side, the channel tube has a structure in which the channel tube clings to the endoscope insertion portion.
【０００７】このため、内視鏡の湾曲操作時にチャンネ
ルチューブの移動するスペースが取られていないと共
に、チャンネルチューブが内視鏡挿入部に接触している
ため、手元側の口体部でチャンネルチューブが動くこと
ができずに、突っ張ったり、蛇行したりして、湾曲力量
が重く、所望の湾曲動作を得られなくなる虞れがあっ
た。また、カバー用内視鏡を内視鏡用カバーに装着する
際、手元側の口体部空間部に配設されている鉗子チャン
ネル、送気チャンネル、送水チャンネル等がカバー用内
視鏡の挿入部先端に引っかかることによって、チャンネ
ルを座屈させてしまったり、破損させたりして、送気、
送水、吸引の機能を十分に果たせなくなる虞れがあるの
で、挿入に必要以上に神経を使い手間がかかっていた。Therefore, there is no space for moving the channel tube during the bending operation of the endoscope, and the channel tube is in contact with the insertion portion of the endoscope. However, there is a possibility that the desired bending operation may not be obtained due to a large amount of bending force due to being unable to move, stretching or meandering. Further, when the cover endoscope is mounted on the endoscope cover, the forceps channel, the air supply channel, the water supply channel, etc., which are arranged in the mouth space on the hand side, insert the cover endoscope. The channel can buckle or break by catching on the tip of
Since there is a possibility that the functions of water supply and suction may not be sufficiently performed, it takes time and effort to use nerves more than necessary for insertion.
【０００８】本発明は上記事情に鑑みてなされたもので
あり、、内視鏡カバーへの内視鏡の挿入性を向上させる
と共に、送気、送水、吸引等のチャンネルチューブの機
能を損なうこと無く、内視鏡の湾曲操作時にチャンネル
チューブに余裕のある操作性の良いカバー式内視鏡を提
供することを目的としている。SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and improves the insertability of an endoscope into an endoscope cover and impairs functions of a channel tube such as air supply, water supply, and suction. It is another object of the present invention to provide a cover-type endoscope which has sufficient operability with sufficient room for a channel tube at the time of bending operation of the endoscope.
【０００９】[0009]
【課題を解決するための手段】本発明のカバー式内視鏡
は、送気・送水・吸引管路のうち少なくとも１つ以上の
管路を形成するチャンネルチューブを有する内視鏡カバ
ーと、この内視鏡カバーに挿入して使用される軟性の挿
入部と、前記挿入部に設けられた湾曲操作可能な湾曲部
とを有するカバー用内視鏡と、を備えるカバー式内視鏡
において、前記内視鏡カバーの挿入部カバー部の手元側
に配設された口体部の内部空間部を仕切部材で分割し、
この仕切部材で分割された一方の空間部を挿入部カバー
部へのカバー用内視鏡の導入部とし、他方の空間部をチ
ャンネルチューブの配設スペースとしたことを特徴とす
る。Means for Solving the Problems] covers endoscope of the present invention, the endoscope cover having a channel tube forming at least one or more conduits of gas supply and water supply, the suction channel,the Flexible insertion used by inserting it into the endoscope cover
An insertion portion, a bending portion provided on the insertion portion and capable of bending operation
And a cover endoscope having a cover endoscope comprising: a partitioning member that divides an internal space portion of a mouth body portion disposed close to an insertion portion cover portion of the endoscope cover by a partition member. ,
One space divided by the partition member is used as an introduction portion of the cover endoscope to the insertion portion cover, and the other space is used asa space for disposing the channel tube.
You.
【００１０】[0010]
【作用】この構成によれば、内視鏡カバーにカバー用内
視鏡を挿通する際、仕切部材で分割された口体部の一方
の空間部にカバー用内視鏡を挿通していくことによっ
て、他方の空間部に配設されたチャンネルチューブに接
触することなく、カバー用内視鏡が挿入部カバー部へス
ムースに導入される。According to this structure, when the cover endoscope is inserted into the endoscope cover, the cover endoscope is inserted into one space of the mouth part divided by the partition member. Thereby, the endoscope for a cover is smoothly introduced into the insertion portion cover without contacting the channel tube provided in the other space.
【００１１】また、仕切部材で分割された口体部の他方
の空間部には鉗子チャンネルチューブ、送気チャンネル
チューブ、送水チャンネルチューブ等をたるみを持たせ
て配設されているので、内視鏡の湾曲時にチャンネルチ
ューブが移動するので湾曲動作がスムースに行われる。Further, since the forceps channel tube, the air supply channel tube, the water supply channel tube and the like are provided with slack in the other space portion of the mouth portion divided by the partition member, the endoscope is provided. Since the channel tube moves at the time of bending, the bending operation is performed smoothly.
【００１２】[0012]
【実施例】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１２は本発明の一実施例に係り、図１はカ
バー式内視鏡装置の概略構成を示す図、図２はカバー用
内視鏡を示す図、図３は挿入部の断面形状を示す断面
図、図４は口体部本体の構成を示す断面図、図５は口体
部本体の断面図、図６は口体部本体の構成を説明する
図、図７は操作部接続部本体の斜視図、図８は操作部接
続部本体のフランジ部の断面図、図９はシール部材の正
面図、図１０はシール部材の断面図、図１１は操作部接
続部の構成を示す断面図、図１２は口体部の概略構成を
示す断面図である。An embodiment of the present invention will be described with reference to the drawings.
1 to 12 relate to an embodiment of the present invention. FIG. 1 is a view showing a schematic configuration of a cover type endoscope apparatus, FIG. 2 is a view showing a cover endoscope, and FIG. FIG. 4 is a cross-sectional view illustrating the configuration of the mouth body, FIG. 5 is a cross-sectional view of the mouth body, FIG. 6 is a diagram illustrating the structure of the mouth body, and FIG. 8 is a sectional view of a flange portion of the operation portion connection portion main body, FIG. 9 is a front view of the seal member, FIG. 10 is a cross-sectional view of the seal member, and FIG. 11 is a configuration of the operation portion connection portion. FIG. 12 is a cross-sectional view showing a schematic configuration of a mouth part.
【００１３】図１に示すようにカバー式内視鏡装置１
は、カバー式内視鏡２を有する装置であり、内視鏡カバ
ー（以下カバーと略記）３と、このカバー３に挿入され
るカバー用内視鏡４とから構成されている。As shown in FIG. 1, a cover type endoscope apparatus 1 is shown.
Is an apparatus having a cover-type endoscope 2, and is composed of an endoscope cover (hereinafter abbreviated as a cover) 3 and a cover endoscope 4 inserted into the cover 3.
【００１４】前記内視鏡装置１にはカバー式内視鏡２が
接続される各種周辺機器等を内設したカート５と、カバ
ー式内視鏡２を保持するカバー保持具６とが備えられて
いる。The endoscope apparatus 1 is provided with a cart 5 in which various peripheral devices and the like to which the cover type endoscope 2 is connected are installed, and a cover holder 6 for holding the cover type endoscope 2. ing.
【００１５】前記カート５には例えば、光源装置７，ビ
デオプロセッサ８、流体制御装置９、カバー３にカバー
用内視鏡４を装着する際に使用する内視鏡カバー拡張器
（以下、拡張器と略記する）１０等が収納されている。
また、前記カート５の上面部には、ビデオプロセッサ８
からの映像信号を受けて内視鏡画像を表示するモニタ１
１が載置されている。The cart 5 includes, for example, a light source device 7, a video processor 8, a fluid control device 9, and an endoscope cover expander (hereinafter referred to as an expander) used when the cover endoscope 4 is mounted on the cover 3. 10) are stored.
A video processor 8 is provided on the upper surface of the cart 5.
Monitor 1 that receives an image signal from the camera and displays an endoscope image
1 is placed.
【００１６】前記カバー用内視鏡４は、細長のカバー挿
入部１４と、この挿入部１４の手元側基端部に連設され
た太径の把持部を兼ねた操作部１２と、この操作部１２
の側部から延出するユニバーサルコード１３とから構成
されており、このユニバーサルコード１３の端部にコネ
クタ１５が設けられている。The cover endoscope 4 includes an elongated cover insertion portion 14, an operation portion 12, which is provided at a proximal end of the insertion portion 14 on the proximal side of the insertion portion and serves as a large-diameter grip portion, and an operation portion 12. Part 12
And a universal cord 13 extending from the side of the universal cord 13. A connector 15 is provided at an end of the universal cord 13.
【００１７】光源装置７は、前記コネクタ１５を介して
カバー用内視鏡４と着脱自在に接続され、内視鏡に照明
光を供給するためのものである。ビデオプロセッサ８
は、前記コネクタ１５の側部から延出する信号ケーブル
１６を介してカバー用内視鏡４に着脱自在に接続され、
カバー用内視鏡４に内蔵されている撮像手段の駆動並び
に撮像手段から出力される信号を標準的な映像信号に変
換してモニタ１１へ出力するようになっている。The light source device 7 is detachably connected to the cover endoscope 4 via the connector 15 and supplies illumination light to the endoscope. Video processor 8
Is detachably connected to the cover endoscope 4 via a signal cable 16 extending from a side portion of the connector 15,
The drive of the image pickup unit incorporated in the cover endoscope 4 and the conversion of the signal output from the image pickup unit into a standard video signal are output to the monitor 11.
【００１８】拡張器１０には拡張チューブ３４が接続さ
れ、この拡張チューブ３４を介してカバー内に空気を送
り込んでカバー３を拡張して、カバー用内視鏡４のカバ
ー３への挿抜を容易に行えるようにしている。なお、カ
バー用内視鏡４をカバー３に挿抜する際にはカバー保持
具６を用い、例えば、カバー保持具６によってカバー３
の基端側を保持してカバー用内視鏡４を挿抜するように
なっている。An expansion tube 34 is connected to the dilator 10, and air is sent into the cover via the expansion tube 34 to expand the cover 3 so that the cover endoscope 4 can be easily inserted into and removed from the cover 3. To be able to do it. When the cover endoscope 4 is inserted into and removed from the cover 3, the cover holder 6 is used.
, And the cover endoscope 4 is inserted and withdrawn.
【００１９】カバー３は、先端側構成部材である先端構
成部１９と手元側構成部材である口体部２０及び操作部
接続部２１とを連通した軟性の挿入部カバー部２２と、
薄肉の例えば塩化ビニルなどの高分子材料で形成された
操作部カバー部２３及びユニバーサルコードカバー部２
４とを備えて構成されている。なお、前記カバー３を構
成する挿入部カバー部２２，操作部カバー部２３及びユ
ニバーサルコードカバー部２４は、カバー用内視鏡４の
内視鏡挿入部１４，操作部１２，ユニバーサルコード１
３をそれぞれ覆うようになっている。The cover 3 includes a soft insertion portion cover portion 22 which connects a distal end portion 19 which is a distal side component member, a mouth portion 20 which is a proximal side component member, and an operation portion connection portion 21;
The operation unit cover 23 and the universal code cover 2 formed of a thin polymer material such as vinyl chloride.
4 is provided. The insertion section cover 22, the operation section cover 23, and the universal code cover 24 constituting the cover 3 are formed by the endoscope insertion section 14, the operation section 12, and the universal cord 1 of the endoscope 4 for a cover.
3 respectively.
【００２０】流体制御装置９には送気制御弁３５，送水
制御弁３６，吸引制御弁３７が設けられ、送気，送水，
吸引をこれらの弁で制御できるようになっている。送気
制御弁３５，送水制御弁３６，吸引制御弁３７には、そ
れぞれ挿入部カバー部２２から延出している送気管路２
６，送水管路２７，吸引管路２８を形成するチューブが
接続されている。なお、吸引制御弁３７には吸引チュー
ブ３８も接続され、その端部を図示しない吸引器に接続
して、内視鏡先端部より体液等を吸引するようになって
いる。また、送水制御弁３６には送水チューブ３９も接
続されており、その先端部には送水タンク３３を接続し
ている。さらに、流体制御装置９からは２本の送気チュ
ーブ４０が延出されており、送気制御弁３５と送水タン
ク３３とに接続されている。The fluid control device 9 is provided with an air supply control valve 35, a water supply control valve 36, and a suction control valve 37.
Suction can be controlled by these valves. Each of the air supply control valve 35, the water supply control valve 36, and the suction control valve 37 has an air supply line 2 extending from the insertion portion cover 22.
6, tubes forming a water supply conduit 27 and a suction conduit 28 are connected. A suction tube 38 is also connected to the suction control valve 37, and an end of the suction tube 38 is connected to a suction device (not shown) so that a body fluid or the like is sucked from the distal end portion of the endoscope. A water supply tube 39 is also connected to the water supply control valve 36, and a water supply tank 33 is connected to a distal end thereof. Further, two air supply tubes 40 extend from the fluid control device 9, and are connected to the air supply control valve 35 and the water supply tank 33.
【００２１】図２に示すようにカバー３に挿入されるカ
バー用内視鏡４の内視鏡挿入部１４は、先端側より例え
ば、断面形状を図３に示すような略Ｄ字状に形成した先
端部４１、湾曲部４２、可撓管部４３が連設されてお
り、この可撓管部４３の後方には略Ｄ字型の断面形状か
ら円形断面形状に移行する移行部４４、円形断面を有す
る手元側部４５が連設されている。As shown in FIG. 2, an endoscope insertion portion 14 of the cover endoscope 4 inserted into the cover 3 is formed, for example, in a substantially D-shaped cross section as shown in FIG. A distal end portion 41, a curved portion 42, and a flexible tube portion 43 are provided in series, and a transition portion 44 that transitions from a substantially D-shaped cross-sectional shape to a circular cross-sectional shape is provided behind the flexible tube portion 43. A hand side portion 45 having a cross section is continuously provided.
【００２２】ここで、カバー３の手元側構成部である口
体部２０について説明する。口体部２０は、口体部本体
２０ａと操作部接続部２１とから構成されている。ま
ず、図４ないし図６を参照して手元側構成部の口体部本
体２０ａを説明する。Here, the mouth portion 20 which is a component on the hand side of the cover 3 will be described. The mouth portion 20 includes a mouth portion main body 20a and an operation portion connection portion 21. First, the mouth body 20a of the proximal component will be described with reference to FIGS.
【００２３】図４及び図５に示すように口体部本体２０
ａは、管状部材であり、挿入部カバー部２２が外嵌する
先端側を細径に形成し、後述する操作部接続部２１を内
嵌する段部８１を有する手元側を太径に形成している。As shown in FIG. 4 and FIG.
a is a tubular member, the distal end side of the outer fitting of the insertion portion cover portion 22 is formed to have a small diameter, and the hand side having the step portion 81 to which the operating portion connecting portion 21 described later is formed to have a large diameter. ing.
【００２４】前記口体部本体２０ａの内部空間には、細
径部側から太径部途中まで延出する仕切部材５１が配設
されている。この仕切部材５１は、図５に示すように前
記挿入部１４の断面形状よりやや大きい略Ｄ字状の断面
形状の内視鏡挿通空間部８２を形成しており、先端側に
接続されている挿入部カバー部２２への内視鏡導入部と
なっている。そして、この内視鏡挿通空間部８２の挿入
口８２ａは、内視鏡の挿入性を向上させため、手元側に
向かって徐々に開口するテーパ状に形成させている。A partition member 51 extending from the small-diameter portion to the middle of the large-diameter portion is provided in the internal space of the mouth body 20a. As shown in FIG. 5, the partition member 51 forms an endoscope insertion space portion 82 having a substantially D-shaped cross-sectional shape slightly larger than the cross-sectional shape of the insertion portion 14, and is connected to the distal end side. An endoscope introduction part into the insertion part cover part 22. The insertion port 82a of the endoscope insertion space 82 is formed in a tapered shape that gradually opens toward the hand side in order to improve the insertability of the endoscope.
【００２５】また、前記内視鏡挿通空間部８２の周囲の
空間部を送気・送水・吸引管路を形成するチャンネルチ
ューブが配設されるスペースであるチャンネル配設空間
部８３としている。The space around the endoscope insertion space 82 is defined as a channel installation space 83 which is a space in which a channel tube forming an air supply / water supply / suction conduit is provided.
【００２６】なお、口体部本体２０ａの外周面には拡張
チューブ口５２，送気用透孔５３ａ，送水用透孔５４
ａ，鉗子用透孔５５ａが形成されている。The outer peripheral surface of the mouth body 20a has an expansion tube port 52, an air supply through hole 53a, and a water supply through hole 54.
a, Forceps through-hole 55a is formed.
【００２７】図６に示すように前記口体部本体２０ａの
細径部には挿入部カバー部２２が接続されるようになっ
ている。また、前記送気用透孔５３ａには送気口金５３
を介して挿入部カバー部２２から延出する送気チャンネ
ルチューブ５７と送気チューブ４０とが連通され、前記
送水用透孔５４ａには送水口金５４を介して挿入部カバ
ー部２２から延出する送水チャンネルチューブ５８と送
水チューブ３９とが連通されるようになっている。さら
に、鉗子用透孔５５ａには鉗子口金５５を介して鉗子チ
ャンネルチューブ５６と分岐体６１を形成した鉗子口６
２とが連通されるようになっており、この鉗子口６２に
は途中で分岐し、吸引口金５９を介して連通する吸引チ
ューブ３８が配設されるようになっている。As shown in FIG. 6, an insertion portion cover 22 is connected to the small diameter portion of the mouth body 20a. Further, the air supply base 53 is provided in the air supply through hole 53a.
The air supply channel tube 57 and the air supply tube 40 extending from the insertion portion cover portion 22 through the opening portion are communicated with each other, and extend from the insertion portion cover portion 22 through the water supply mouthpiece 54 to the water supply through hole 54a. The water supply channel tube 58 and the water supply tube 39 are communicated with each other. Further, the forceps channel 6 having the forceps channel tube 56 and the branch body 61 formed in the forceps through hole 55a through the forceps mouthpiece 55.
The suction tube 38 is connected to the forceps port 62, and a suction tube 38 that branches off in the middle and communicates with the forceps port 59 via a suction mouthpiece 59 is provided.
【００２８】なお、前記送気チャンネルチューブ５７、
送水チャンネルチューブ５８及び鉗子チャンネルチュー
ブ５６は、湾曲操作時スムースに動作させるため各チャ
ンネルチューブをチャンネル配設空間部８３で０〜３０
ｍｍの範囲でたるませて配設している。また、前記拡張
チューブ口５２には拡張チューブ３４が接続されるよう
になっており、前記挿入部カバー部２２の先端部には先
端構成部１９が接続されるようになっている。The air supply channel tube 57,
The water supply channel tube 58 and the forceps channel tube 56 are arranged such that each channel tube is 0 to 30 in the channel arrangement space 83 in order to operate smoothly during the bending operation.
The slack is arranged in the range of mm. The expansion tube 34 is connected to the expansion tube opening 52, and the distal end component 19 is connected to the distal end of the insertion portion cover 22.
【００２９】次に、図７ないし図１１を参照して手元側
構成部の操作部接続部２１を説明する。操作部接続部２
１は、図７及び図８に示す操作部接続部本体２１ａと、
図９及び図１０に示すシール部材６５とから構成されて
いる。Next, referring to FIGS. 7 to 11, the operation section connecting section 21 of the near-side component will be described. Operation unit connection unit 2
1 is an operation unit connection portion main body 21a shown in FIGS. 7 and 8;
It comprises a seal member 65 shown in FIG. 9 and FIG.
【００３０】図７及び図８に示すように操作部接続部本
体２１ａは、前記口体部本体２０ａの段部８１に内嵌す
る太径部を有し、この太径部の先端にはフランジ部７１
を形成している。このフランジ部７１には前記口体部本
体２０ａに配設した仕切部材５１に形成した内視鏡挿通
空間部８２と軸を一致させた略Ｄ字状の内視鏡挿入部１
４を案内すると共に、内視鏡の回転（ふらつき）を防止
する回転防止孔７２が形成されている。As shown in FIGS. 7 and 8, the operating portion connecting portion main body 21a has a large diameter portion which is fitted into the step portion 81 of the mouth body main portion 20a. Part 71
Is formed. The flange portion 71 has a substantially D-shaped endoscope insertion portion 1 whose axis coincides with that of an endoscope insertion space portion 82 formed in a partition member 51 provided in the mouth body main body 20a.
A rotation preventing hole 72 is formed for guiding the endoscope 4 and for preventing rotation (staggering) of the endoscope.
【００３１】図９及び図１０に示すようにシール部材６
５は、先端側には前記挿入部１４のＤ字断面形状を縮小
した形状の内視鏡通過孔６７を設けた例えば、シリコン
等の弾性材料で一体成形され、薄肉シール部６６を備え
ると共に、手元側には前記操作部接続部本体２１ａのフ
ランジ７２に嵌合する固定部６８を形成している。As shown in FIG. 9 and FIG.
5 is provided with an endoscope passage hole 67 having a reduced D-shaped cross-sectional shape of the insertion section 14 on the distal end side, and is integrally formed of an elastic material such as silicon, for example, and includes a thin seal section 66. A fixing portion 68 that fits into the flange 72 of the operation portion connection portion main body 21a is formed on the hand side.
【００３２】図１１に示すように操作部接続部２１は、
操作部接続部本体２１ａのフランジ部７１とシール部材
６５とが嵌入固定されて内視鏡挿入部１４が挿通可能な
ように形成されるようになっている。そして、前記口体
部本体２０ａに操作部接続部本体２１を嵌入して図１２
に示すような口体部２０が形成される。As shown in FIG. 11, the operation section connecting section 21
The flange portion 71 of the operation portion connection portion main body 21a and the seal member 65 are fitted and fixed so that the endoscope insertion portion 14 can be inserted therethrough. Then, the operation section connection section main body 21 is fitted into the mouth body section main body 20a, and FIG.
Is formed as shown in FIG.
【００３３】なお、符号７３は逃がし孔であり、回転防
止孔７２部から手元側に行くに従って開口するように形
成され、最終的に開口部の外径は移行部４４の外形より
大径になる。Reference numeral 73 denotes an escape hole, which is formed so as to open from the anti-rotation hole 72 toward the hand, and the outer diameter of the opening eventually becomes larger than the outer diameter of the transition portion 44. .
【００３４】上述のように構成した口体部２０の作用を
説明する。まず、カバー用内視鏡４の内視鏡挿入部１４
をカバー３に装着する際、口体部２０をカバー保持具６
に固定する。このとき、口体部２０の手元側端部には操
作部接続部本体２１ａに形成した大径の逃がし孔７３が
位置する。そして、この逃がし孔７３に内視鏡挿入部１
４の先端部４１を挿入していく。The operation of the mouth portion 20 configured as described above will be described. First, the endoscope insertion section 14 of the endoscope 4 for a cover
When the cover 20 is attached to the cover 3, the mouth 20 is
Fixed to. At this time, a large-diameter escape hole 73 formed in the operation portion connection portion main body 21a is located at the proximal end of the mouth portion 20. Then, the endoscope insertion portion 1 is inserted into the escape hole 73.
Continue to insert the fourth tip41.
【００３５】すると、この先端部４１は、Ｄ字形状の回
転防止孔７２に挿通される。回転防止孔７２と挿入部１
４との間には適度なクリアランスが設けられているの
で、先端部４１はガタつくことなく、スムースに前進し
て薄肉シール部６６のスコープ通過口６７を通過して行
く。このとき、薄肉シール部６６は挿入方向へめくれ、
このめくれた薄肉シールが内視鏡挿入部外周面を軸中心
側に押圧する。このため、薄肉シール部６６と内視鏡挿
入部１４との密着状態を保持した状態で移動していくの
で、カバー内部を気密構造とする。ここで、拡張チュー
ブ口金５２に接続されている拡張チューブ３４を介し拡
張器１０より空気をカバー内に送り込んで挿入部カバー
部２２を拡張して内視鏡挿入部を挿入するようにしても
良い。Then, the tip portion41 is inserted into the D-shaped rotation preventing hole 72. Rotation prevention hole 72 and insertion part 1
Since an appropriate clearance is provided between the front end portion 4 and the front end portion 4, the front end portion41 smoothly advances and passes through the scope passage opening 67 of the thin seal portion 66 without rattling. At this time, the thin seal portion 66 is turned up in the insertion direction,
The curled thin seal presses the outer peripheral surface of the endoscope insertion portion toward the center of the shaft. For this reason, since the thin seal portion 66 and the endoscope insertion portion 14 move while being kept in close contact with each other, the inside of the cover has an airtight structure. Here, air may be sent into the cover from the dilator 10 through the dilation tube 34 connected to the dilation tube base 52 to expand the insertion part cover part 22 and insert the endoscope insertion part. .
【００３６】前記スコープ通過口６７を通過した先端部
４１は、仕切部材５１で形成された内視鏡挿通空間部８
２に挿通して行く。このとき、先端部４１は、たるませ
た状態でチャンネル配設空間部８３に配設されている送
気チャンネルチューブ５７、送水チャンネルチューブ５
８、吸引チャンネルチューブ５６などに当接することな
くスムースに前進して挿入部カバー部２２に導入されて
いく。The tip portion that has passed through the scope passage opening 67
41 is an endoscope insertion space 8 formed by the partition member 51
Go through 2 At this time, the distal end portion41 is attached to the air supply channel tube 57 and the water supply channel tube 5 provided in the channel installation space portion 83 in a slack state.
8. The fluid smoothly advances without being in contact with the suction channel tube 56 and is introduced into the insertion portion cover 22.
【００３７】このように、仕切部材を配設し、口体部の
内部空間を、内視鏡挿入部を通過させるための空間部と
各チャンネルを配設するための空間部とに分割したこと
によって、内視鏡挿入部を内視鏡カバーに挿抜させる
際、各チャンネルチューブに接触すること無く、スムー
ス、且つ、容易に作業を行うことができる。このため、
各チャンネルの座屈や破損の心配が無くなり、送気、送
水、吸引の操作を安心して確実に行うことができる。As described above, the partition member is provided, and the internal space of the mouth is divided into a space for passing the endoscope insertion portion and a space for providing each channel. Accordingly, when the endoscope insertion portion is inserted into and removed from the endoscope cover, the operation can be performed smoothly and easily without contacting each channel tube. For this reason,
There is no need to worry about buckling or breakage of each channel, and air, water, and suction operations can be reliably performed.
【００３８】また、口体部空間部のチャンネル配設空間
部を挿通する各チャンネルチューブをたるませた状態で
配設しているので、湾曲操作時に各チャンネルチューブ
が突っ張ったり、蛇行したりすることが無いので、スム
ースにスライドし、湾曲動作を確実に行なうことができ
る。Further, since each channel tube passing through the channel arrangement space portion of the mouth portion space portion is disposed in a slack state, each channel tube may be stretched or meandered during the bending operation. Because there is no sliding, it is possible to slide smoothly and perform the bending operation reliably.
【００３９】さらに、回転防止孔を口体部の案内孔を兼
ねて形成したことにより、内視鏡挿入の際の位置ずれが
無くなり、常に一定の状態でスコープ通過口を通過させ
ることができるので、薄肉シール部のスコープ通過口の
形状変化による隙間の発生を防止することができる。Further, since the anti-rotation hole is formed also as a guide hole of the mouth part, there is no displacement at the time of insertion of the endoscope, so that the endoscope can always pass through the scope passage opening in a constant state. Further, it is possible to prevent the occurrence of a gap due to a change in the shape of the scope passage opening of the thin seal portion.
【００４０】又、シール部材を一体成形にて形成したこ
とによって、組立て性が良く、確実なシール構造を有す
る部材を安価に提供することができる。Further, since the sealing member is formed by integral molding, a member having a good assembling property and a reliable sealing structure can be provided at low cost.
【００４１】更に、口体部の構成を単純な構造の部材の
組み合わせにしたことにより、口体部内部のスペースに
余裕を持たせることができると共に、原価が低減され、
安価な内視鏡カバーが提供することができる。Further, by combining the structure of the mouth portion with a member having a simple structure, the space inside the mouth portion can have a sufficient space, and the cost can be reduced.
An inexpensive endoscope cover can be provided.
【００４２】なお、拡張チューブ口金に接続される拡張
チューブを介し、吸引器によってカバー内の空気を排出
し、負圧にすることによって、挿入部カバー部を内視鏡
挿入部に密着させるようにしてもよい。The air in the cover is exhausted by an aspirator through an expansion tube connected to the expansion tube base, and the pressure is reduced to a negative pressure so that the insertion portion cover portion is brought into close contact with the endoscope insertion portion. You may.
【００４３】又、鉗子口を有する分枝部を送気チュー
ブ、送水チューブ、拡張チューブを延出する方向と別方
向に設けた為、処置具を鉗子口に挿入する際、鉗子口付
近で各チューブが邪魔になることがなく、処置具挿通時
に良好な操作性が得られる。Further, since the branch portion having the forceps port is provided in a direction different from the direction in which the air supply tube, the water supply tube, and the extension tube extend, when the treatment tool is inserted into the forceps port, each portion is located near the forceps port. The tube is not in the way and good operability can be obtained when the treatment tool is inserted.
【００４４】図１３及び図１４は本発明の第１変形例に
係り、図１３は口体部の概略構成を示す断面図、図１４
は口体部本体の構成を示す断面図である。図に示すよう
に本実施例の口体部は、前記実施例で口体部本体２０ａ
に設けた内視鏡挿通空間部８２を備えた仕切部材５１の
代わりに、仕切部材５１ａを口体部空間部に形成して溝
状の内視鏡挿通空間部８２を形成している。このため、
内視鏡挿通空間部を通過する内視鏡の摩擦抵抗が減少し
て挿入性が向上する。その他の構成及び作用・効果は前
記実施例と同様であり、同部材には同符号を付して説明
を省略する。FIGS. 13 and 14 relate to a first modification of the present invention. FIG. 13 is a sectional view showing a schematic configuration of a mouth portion.
FIG. 3 is a cross-sectional view illustrating a configuration of a mouth body main body. As shown in the figure, the mouth portion of the present embodiment is the same as the mouth portion body 20a in the above embodiment.
Instead of the partition member 51 provided with the endoscope insertion space 82 provided in the above, a groove-shaped endoscope insertion space 82 is formed by forming a partition member 51a in the mouth body space. For this reason,
The frictional resistance of the endoscope passing through the endoscope insertion space decreases, and the insertability is improved. Other configurations, operations and effects are the same as those of the above-described embodiment, and the same members are denoted by the same reference numerals and description thereof will be omitted.
【００４５】図１５及び図１６は本発明の第２変形例に
係り、図１５は口体部の概略構成を示す断面図、図１４
は口体部本体の構成を示す断面図である。図に示すよう
に本実施例の口体部は、前記実施例で口体部本体２０ａ
に設けた内視鏡挿通空間部８２を備えた仕切部材５１及
び溝状の内視鏡挿通空間部８２を形成する仕切部材５１
ａの代わりに、板状の仕切部材５１ｂを配設して口体部
空間部を上下の空間部に分離している。このため、仕切
部材の形状が単純となるのでコストを低減することがで
きる。その他の構成及び作用・効果は前記実施例と同様
であり、同部材には同符号を付して説明を省略する。FIGS. 15 and 16 relate to a second modification of the present invention. FIG. 15 is a cross-sectional view showing a schematic structure of a mouth portion, and FIGS.
FIG. 3 is a cross-sectional view illustrating a configuration of a mouth body main body. As shown in the figure, the mouth portion of the present embodiment is the same as the mouth portion body 20a in the above embodiment.
A partition member 51 having an endoscope insertion space 82 provided in the partition member 51 and a partition member 51 forming a groove-shaped endoscope insertion space 82
Instead of a, a plate-shaped partition member 51b is provided to separate the mouth body space into upper and lower spaces. For this reason, since the shape of the partition member becomes simple, the cost can be reduced. Other configurations, operations and effects are the same as those of the above-described embodiment, and the same members are denoted by the same reference numerals and description thereof will be omitted.
【００４６】ところで、カバー式内視鏡において観察視
野方向が側視であり、内視鏡カバー先端部に処置具起上
装置を有するものがある。以下、上述のように構成した
口体部を有するカバー式内視鏡に処置具起上装置を配設
するときの構成を説明する。図１７に示すように処置具
を起上させる起上台８８を先端構成部１９に配設すると
共に、この起上台８８を操作する起上ワイヤ７１を挿通
したワイヤガイド８５を設けている。By the way, there is a cover-type endoscope in which the observation visual field direction is a side view and a treatment instrument raising device is provided at the end of the endoscope cover. Hereinafter, a configuration in which the treatment instrument raising device is disposed in the cover-type endoscope having the mouth portion configured as described above will be described. As shown in FIG. 17, a raising table 88 for raising the treatment tool is provided in the distal end portion 19, and a wire guide 85 through which a raising wire 71 for operating the raising table 88 is provided.
【００４７】このため、鉗子チャンネル５６内を挿通し
てきた処置具は、起上台８８に接続されている起上ワイ
ヤ７１を押し引きすることによって起上台を起上、倒置
させるようになっている。前記起上ワイヤ７１は、鉗子
チャンネル５６に沿って配設された軟性のチューブやコ
イルパイプによって形成されたワイヤガイド８５内を挿
通して、後端部をカバー式内視鏡の図示しない操作部近
傍に設けた処置具起上レバーに接続している。このと
き、ワイヤガイド８５は、一端、口体部２０内で鉗子チ
ャンネル５６と同様、０〜３０ｍｍ程度のたるみを持た
せて、仕切部材で分離されたチャンネル配設用空間部を
挿通して、後端を操作部接続部に固定している。このた
め、湾曲操作時に、ワイヤガイド８５が口体部２０の内
部及び挿入部カバー部２２で挿入方向に移動することが
できるので、たるみ量の分だけ、挿入部カバー部内で長
さを変化させられる。For this reason, the treatment instrument inserted through the forceps channel 56 pushes and pulls the raising wire 71 connected to the raising table88 to raise and lower the raising table. The raising wire 71 is inserted through a wire guide 85 formed by a flexible tube or a coil pipe disposed along the forceps channel 56, and a rear end portion of the operating portion (not shown) of the cover-type endoscope is inserted. It is connected to a treatment instrument raising lever provided in the vicinity. At this time, the wire guide85 has one end having a slack of about 0 to 30 mm like the forceps channel 56 in the mouth body portion 20, and is inserted through the channel arrangement space separated by the partition member. The rear end is fixed to the operation part connection part. For this reason, during the bending operation, the wire guide85 can move in the insertion direction inside the mouth body portion 20 and the insertion portion cover portion 22, so that the length is changed in the insertion portion cover portion by the amount of the slack. Can be
【００４８】このように、ワイヤガイドのスムーズな移
動を可能にするたるみを空間部に設けたので湾曲操作時
に所望の湾曲操作が確実に行える。As described above, the slack that allows the wire guide to move smoothly is provided in the space, so that a desired bending operation can be reliably performed during the bending operation.
【００４９】尚、本発明は内視鏡カバー拡張器を使用し
ないものに適用しても良い。また、内視鏡挿入部の断面
形状は略Ｄ字形状に限定されるものではなく、凹形でも
楕円形でも良い。さらに、各チャンネル口金を配設する
位置は、口体部のどの位置に設けても良い。又、各チャ
ンネルにたるみを持たせるかわりに伸縮可能なチャンネ
ルを使用しても良い。更に、仕切部材は口体部と一体で
なく別体であっても良い。It should be noted that the present invention may be applied to a device that does not use an endoscope cover expander. Further, the cross-sectional shape of the endoscope insertion portion is not limited to a substantially D-shape, and may be a concave shape or an elliptical shape. Furthermore, the position where each channel base is disposed may be provided at any position in the mouth part. Also, instead of giving each channel slack, an expandable channel may be used. Further, the partition member may be separate from the mouth body, instead of being integrated with the mouth body.
【００５０】[0050]
【発明の効果】本発明のカバー式内視鏡は、内視鏡カバ
ーへの内視鏡の挿入性を向上させると共に、送気、送
水、吸引等のチャンネルチューブの機能を損なうこと無
く、内視鏡の湾曲操作時にチャンネルチューブに余裕の
ある操作性を実現することができる。The cover type endoscope of the present invention improves the insertability of the endoscope into the endoscope cover, and does not impair the functions of the channel tube such as air supply, water supply and suction. When the bending operation of the endoscope is performed, it is possible to realize operability in which the channel tube has room.
【図１】図１ないし図１２は本発明の一実施例に係り、
図１はカバー式内視鏡装置の概略構成を示す図FIGS. 1 to 12 relate to an embodiment of the present invention;
FIG. 1 is a diagram showing a schematic configuration of a cover type endoscope apparatus.
【図２】カバー用内視鏡を示す図FIG. 2 shows an endoscope for a cover.
【図３】挿入部の断面形状を示す断面図FIG. 3 is a sectional view showing a sectional shape of an insertion portion.
【図４】口体部本体の構成を示す断面図FIG. 4 is a cross-sectional view showing a configuration of a mouth body main body.
【図５】口体部本体の断面図FIG. 5 is a cross-sectional view of the mouth body main body.
【図６】口体部本体の構成を説明する図FIG. 6 is a diagram illustrating a configuration of a mouth body main body.
【図７】操作部接続部本体の斜視図FIG. 7 is a perspective view of an operation unit connection unit main body.
【図８】操作部接続部本体のフランジ部の断面図FIG. 8 is a cross-sectional view of a flange portion of the operation portion connection portion main body.
【図９】シール部材の正面図FIG. 9 is a front view of a seal member.
【図１０】シール部材の断面図FIG. 10 is a sectional view of a seal member.
【図１１】操作部接続部の構成を示す断面図FIG. 11 is a cross-sectional view illustrating a configuration of an operation unit connection unit.
【図１２】口体部の概略構成を示す断面図FIG. 12 is a sectional view showing a schematic configuration of a mouth part.
【図１３】図１３及び図１４は本発明の第１変形例に係
り、図１３は口体部の概略構成を示す断面図13 and 14 relate to a first modification of the present invention, and FIG. 13 is a sectional view showing a schematic configuration of a mouth part.
【図１４】口体部本体の構成を示す断面図FIG. 14 is a cross-sectional view showing the configuration of the mouth body main body.
【図１５】図１５及び図１６は本発明の第２変形例に係
り、図１５は口体部の概略構成を示す断面図15 and 16 relate to a second modification of the present invention, and FIG. 15 is a sectional view showing a schematic configuration of a mouth part.
【図１６】口体部本体の構成を示す断面図FIG. 16 is a cross-sectional view showing a configuration of a mouth body main body.
【図１７】鉗子起上台を備えた内視鏡カバーの先端部の
概略構成を示す図FIG. 17 is a diagram showing a schematic configuration of a distal end portion of an endoscope cover provided with a forceps raising stand.
【図１８】ワイヤガイドの口体部挿通状態を示す図FIG. 18 is a diagram showing a state in which a mouth portion of a wire guide is inserted.
２０…口体部 ５１…仕切部材 ８２…内視鏡挿通空間部 ８３…チャンネル配設空間部 Reference Signs List 20 mouth part 51 partition member 82 endoscope insertion space part 83 channel arrangement space part
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26520593AJP3290006B2 (en) | 1993-10-22 | 1993-10-22 | Cover-type endoscope |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26520593AJP3290006B2 (en) | 1993-10-22 | 1993-10-22 | Cover-type endoscope |
| Publication Number | Publication Date |
|---|---|
| JPH07116105A JPH07116105A (en) | 1995-05-09 |
| JP3290006B2true JP3290006B2 (en) | 2002-06-10 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26520593AExpired - Fee RelatedJP3290006B2 (en) | 1993-10-22 | 1993-10-22 | Cover-type endoscope |
| Country | Link |
|---|---|
| JP (1) | JP3290006B2 (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US12004717B2 (en) | 2019-12-20 | 2024-06-11 | Gyrus Acmi, Inc. | Endoscope with detachable camera module |
| US12004708B2 (en) | 2020-04-30 | 2024-06-11 | Gyrus Acmi, Inc. | Insertion sheath for modular disposable endoscope components |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009183546A (en)* | 2008-02-07 | 2009-08-20 | Olympus Corp | Separable endoscope |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US12004717B2 (en) | 2019-12-20 | 2024-06-11 | Gyrus Acmi, Inc. | Endoscope with detachable camera module |
| US12004708B2 (en) | 2020-04-30 | 2024-06-11 | Gyrus Acmi, Inc. | Insertion sheath for modular disposable endoscope components |
| Publication number | Publication date |
|---|---|
| JPH07116105A (en) | 1995-05-09 |
| Publication | Publication Date | Title |
|---|---|---|
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