JPH07184836A - Cover type endoscope - Google Patents
Cover type endoscopeInfo
- Publication number
- JPH07184836A JPH07184836A JP5331838A JP33183893A JPH07184836A JP H07184836 A JPH07184836 A JP H07184836A JP 5331838 A JP5331838 A JP 5331838A JP 33183893 A JP33183893 A JP 33183893A JP H07184836 A JPH07184836 A JP H07184836A
- Authority
- JP
- Japan
- Prior art keywords
- cover
- endoscope
- flexibility
- insertion portion
- bend
- 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
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00064—Constructional details of the endoscope body
- A61B1/00071—Insertion part of the endoscope body
- A61B1/00078—Insertion part of the endoscope body with stiffening means
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Biomedical Technology (AREA)
- Medical Informatics (AREA)
- Optics & Photonics (AREA)
- Pathology (AREA)
- Radiology & Medical Imaging (AREA)
- Biophysics (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Instruments For Viewing The Inside Of Hollow Bodies (AREA)
- Endoscopes (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、内視鏡カバーに挿入部
の断面形状が非円形であるカバー用内視鏡を挿入して使
用する際の湾曲性能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 bending performance when a cover endoscope having an insertion portion of which the cross-sectional shape is non-circular is inserted and used. .
【０００２】[0002]
【実施例】近年、内視鏡は工業分野、或は、医療分野な
どにおいて広く用いられている。医療分野で使用される
内視鏡は、患者の体腔内に挿入されたとき挿入部や先端
部などに体液などが付着するので、一度患者に使用した
内視鏡を再使用する際には内視鏡を介しての感染症を防
ぐ必要から洗浄や滅菌処理などを行っていた。EXAMPLES Recently, endoscopes have been widely used in industrial fields, medical fields, and the like. When an endoscope used in the medical field is used when it is inserted into the body cavity of a patient, body fluid adheres to the insertion part, the tip, etc. Cleaning and sterilization were performed to prevent infection through the endoscope.
【０００３】特に、内視鏡に設けられている送気・送水
・吸引などのための各種管路は、患者の体腔内で開口す
る先端開口部から挿入部内を挿通する管路を介して体外
部に連通している。このため、この先端開口部を含む管
路内を完全に洗浄、消毒しなければならず、ユーザが管
路内を完全に洗浄、消毒処理を行うには多くの時間がか
かるので内視鏡の使用効率を低下させる要因となってい
た。In particular, various conduits for air supply, water supply, suction, etc., provided in an endoscope are used for the body through a conduit that is inserted from the distal end opening opening in the body cavity of the patient into the insertion section. It communicates with the outside. Therefore, it is necessary to completely clean and disinfect the inside of the conduit including the tip opening portion, and it takes a lot of time for the user to completely clean and disinfect the inside of the conduit. It was a factor that reduced the usage efficiency.
【０００４】そこで、これらの不便を軽減するため、洗
浄・消毒済みのカバーに内視鏡を装着して、このカバー
を装着した状態の内視鏡を体腔内に挿入して検査・処置
などを行い、検査・処置終了後にカバーだけを廃棄する
ようにした、いわゆる、カバー式内視鏡が用いられてい
る。Therefore, in order to reduce these inconveniences, an endoscope is attached to a cover that has been cleaned and disinfected, and the endoscope with the cover attached is inserted into a body cavity for inspection and treatment. A so-called cover-type endoscope is used in which only the cover is discarded after performing the inspection / treatment.
【０００５】前記カバー式内視鏡は、患者の体腔内で開
口する各種管路を形成するチャンネルを設けた内視鏡カ
バーと、患者の体腔内で開口させる必要の無い観察手段
及び照明手段を設けたカバー用内視鏡とを組み合わせて
使用するものである。The cover-type endoscope includes an endoscope cover provided with channels for forming various conduits that open in the body cavity of the patient, and an observing means and an illuminating means that need not be opened in the body cavity of the patient. It is used in combination with the provided cover endoscope.
【０００６】そして、内視鏡カバーに設ける送気管路，
送水管路，吸引管路などの各種チャンネルの構成が容易
になることから、カバー用内視鏡の断面形状を略Ｄ字状
など非円形に形成する構成が広く採用されている。[0006] Then, an air supply line provided in the endoscope cover,
Since it is easy to configure various channels such as a water supply line and a suction line, a configuration in which the cross section of the cover endoscope is formed in a non-circular shape such as a substantially D shape is widely adopted.
【０００７】[0007]
【発明が解決しようとする課題】しかしながら、内視鏡
カバーに挿入されるカバー用内視鏡挿入部の断面形状が
非円形であるカバー式内視鏡では、従来からある挿入部
の断面形状が略円形である内視鏡があらゆる湾曲方向に
対して一定の可撓性を示したのに比較して湾曲方向によ
って湾曲特性が異なるため、湾曲操作の際、曲げ易い方
向と曲げ難い方向とができ、挿入操作に支障をきたす虞
れがある。However, in the cover type endoscope in which the cross-sectional shape of the endoscope insertion portion for the cover to be inserted into the endoscope cover is non-circular, the cross-sectional shape of the conventional insertion portion is Since the endoscope having a substantially circular shape has a certain flexibility in all bending directions, the bending characteristics are different depending on the bending direction. This may result in trouble in the insertion operation.
【０００８】本発明は上記事情に鑑みてなされたもので
あり、内視鏡カバーに装着されたカバー用内視鏡を湾曲
操作する際、湾曲部の湾曲操作性に曲げ易い方向、或
は、曲げ難い方向などの違いが生じない操作性に優れた
カバー式内視鏡を提供することを目的としている。The present invention has been made in view of the above circumstances, and when bending the cover endoscope mounted on the endoscope cover, the bending operability of the bending portion is easy to bend, or It is an object of the present invention to provide a cover-type endoscope which is excellent in operability and does not cause a difference in a direction that is difficult to bend.
【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、挿入部の断面形状が非円形であることによって単体
での左右方向の可撓性と上下方向の可撓性とが異なるカ
バー用内視鏡と、このカバー用内視鏡の少なくとも断面
形状が非円形である挿入部を被覆する柔軟な内視鏡カバ
ーとを組み合わせるカバー式内視鏡において、前記挿入
部の断面形状が非円形であるカバー用内視鏡、或は、非
円形である挿入部を被覆する内視鏡カバーの少なくとも
どちらか一方に可撓性調整手段を設け、カバー式内視鏡
挿入部の左右方向の可撓性と上下方向の可撓性との差が
減少している。In the cover-type endoscope of the present invention, the flexibility in the left-right direction and the flexibility in the up-down direction of the single body are different because the cross-sectional shape of the insertion portion is non-circular. In a cover-type endoscope in which a cover endoscope and a flexible endoscope cover that covers at least the non-circular insertion portion of the cover endoscope have a cross-sectional shape of the insertion portion, At least one of the non-circular cover endoscope and the endoscope cover that covers the non-circular insertion portion is provided with a flexibility adjusting means, and the cover-type endoscope insertion portion has a left-right direction. The difference between the flexibility and the vertical flexibility is reduced.
【００１０】[0010]
【作用】この構成によれば、単体での左右方向の可撓性
と上下方向の可撓性とが異なるカバー用内視鏡を可撓性
調整手段を設けた内視鏡カバーに装着するか、または、
単体での左右方向の可撓性と上下方向の可撓性とが異な
るカバー用内視鏡に可撓性調整手段を設けることによっ
て、内視鏡カバー装着時のカバー用内視鏡の左右方向の
可撓性と上下方向の可撓性との差を減少させて、カバー
式内視鏡の上下方向及び左右方向の湾曲動作をほぼ同様
にする。According to this structure, whether the cover endoscope having the flexibility in the left-right direction and the flexibility in the up-and-down direction which are independent as a single unit is mounted on the endoscope cover provided with the flexibility adjusting means. , Or
By providing flexibility adjustment means to the cover endoscope, which has different flexibility in the left-right direction and flexibility in the up-down direction as a single unit, the left-right direction of the cover endoscope when the endoscope cover is attached. And the flexibility in the up-down direction are reduced to make the bending operation of the cover endoscope in the up-down direction and the left-right direction substantially the same.
【００１１】[0011]
【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５は本発明の第１実施例に係り、図１は内
視鏡システムの概略構成を説明する斜視図、図２はカバ
ー用内視鏡の外観を説明する斜視図、図３はカバー用内
視鏡挿入部の動作を説明する斜視図、図４は内視鏡カバ
ーの外観を説明する斜視図、図５は内視鏡カバーに可撓
性調整手段を配設した状態を示す図である。Embodiments of the present invention will be described with reference to the drawings.
1 to 5 relate to a first embodiment of the present invention, FIG. 1 is a perspective view illustrating a schematic configuration of an endoscope system, FIG. 2 is a perspective view illustrating an appearance of a cover endoscope, and FIG. FIG. 4 is a perspective view for explaining the operation of the cover endoscope insertion portion, FIG. 4 is a perspective view for explaining the outer appearance of the endoscope cover, and FIG. 5 is a state in which the flexibility adjusting means is arranged on the endoscope cover. FIG.
【００１２】図１に示すように内視鏡装置１は、カバー
式内視鏡２を有する装置であり、このカバー式内視鏡２
には内視鏡カバー（以下カバーと略記）３と、このカバ
ー３に装着されるカバー用内視鏡４とが備えられてい
る。As shown in FIG. 1, an endoscope apparatus 1 is an apparatus having a cover type endoscope 2, and this cover type endoscope 2 is used.
1 includes an endoscope cover (hereinafter abbreviated as a cover) 3 and a cover endoscope 4 attached to the cover 3.
【００１３】前記内視鏡装置１にはカバー式内視鏡２
と、このカバー式内視鏡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とから構成されている。The endoscope system 1 includes a cover type endoscope 2
And 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 that holds the cover-type endoscope 2.
【００１４】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１１
が載置されている。The cart 5 has, for example, a light source device 7, a video processor 8, a fluid control device 9, and an endoscope cover extension device (hereinafter referred to as an extension device) used when the cover endoscope 4 is attached to the cover 3. 10 and the like are stored. A monitor 11 is provided on the upper surface of the cart 5 for receiving an image signal from the video processor 8 and displaying an endoscopic image.
Is placed.
【００１５】カバー用内視鏡４は、細長の内視鏡挿入部
１４の手元側基端部に太径の把持部を兼ねた操作部１２
が連設され、操作部１２の側部からユニバーサルコード
１３が延出しており、このユニバーサルコード１３の端
部にコネクタ１９が設けられている。The cover endoscope 4 has an operation portion 12 which doubles as a large-diameter grip portion at the proximal end portion of the elongated endoscope insertion portion 14 on the proximal side.
Are connected in series, the universal cord 13 extends from the side of the operation unit 12, and the connector 19 is provided at the end of the universal cord 13.
【００１６】光源装置７は、前記コネクタ１９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
光を供給するようになっている。また、ビデオプロセッ
サ８は、前記コネクタ１９の側部から延出する信号ケー
ブル２１を介してカバー用内視鏡４と着脱自在に接続さ
れ、カバー用内視鏡４に内蔵された撮像手段の駆動、及
び撮像手段から出力される信号に対する信号処理を行
い、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 through the connector 19 and supplies illumination light to the endoscope. Further, the video processor 8 is detachably connected to the cover endoscope 4 via a signal cable 21 extending from a side portion of the connector 19, and drives an image pickup means built in the cover endoscope 4. , And the signal output from the image pickup means is converted into a standard video signal and output to the monitor 11.
【００１７】拡張器１０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３内に空気を
送り込んで拡張するためのものであり、この拡張により
カバー３は、カバー用内視鏡４の装着あるいは抜去が容
易にできるようになっている。このカバー用内視鏡４に
カバー３を装着あるいは取り外す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を挿入あるいは抜去する
ようになっている。The expander 10 is connected to an expansion tube 34, and is for expanding air by sending air into the cover 3 through the expansion tube 34, and the cover 3 is expanded by this expansion. 4 can be easily attached or removed. When the cover 3 is attached to or detached from the cover endoscope 4, the cover holder 6
The cover holding tool 6 holds the base end side of the cover 3 to insert or remove the cover endoscope 4.
【００１８】カバー３は、軟性の挿入部カバー部２２
と、薄肉で柔軟な例えば、塩化ビニル等の高分子材料で
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２４を備えて構成されており、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１３をそれぞれ覆うようになっている。The cover 3 has a flexible insertion portion cover portion 22.
And a flexible and thin operation portion cover portion 23 and a universal cord cover portion 24, which are made of a polymer material such as vinyl chloride, for example, and the endoscope insertion portion of the cover endoscope 4 is provided. 14, the operation unit 12, and the universal cord 13 are respectively covered.
【００１９】流体制御装置９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，
吸引をこれらの電磁弁で制御す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は、そ
れぞれに挿入部カバー部２２から延出している送気管路
２６、送水管路２７、吸引管路２８が接続されている。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, and supplies air, water,
The suction is controlled by these solenoid valves. The air supply control valve 35, the water supply control valve 36, and the suction control valve 37 are connected to an air supply pipe line 26, a water supply pipe line 27, and a suction pipe line 28 extending from the insertion section cover part 22, respectively.
【００２０】また、吸引制御弁３６には吸引チューブ３
８が接続され、その端部には図示しない吸引器が接続さ
れ、内視鏡先端部より不用な体液等の吸引を行うように
なっている。送水制御弁３６には送水チューブ３９が接
続されており、その先端部には送水タンク３３が接続さ
れている。さらに、流体制御装置９からは２本の送気チ
ューブ４０が延出しており、送気制御弁３５と送水タン
ク３３とに接続されている。The suction control valve 36 has a suction tube 3
8 is connected, and an aspirator (not shown) is connected to the end portion of the endoscope 8 so that unnecessary body fluid or the like is sucked from the distal end portion of the endoscope. A water supply tube 39 is connected to the water supply control valve 36, and a water supply tank 33 is connected to the tip of the water supply tube 39. 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に示すように前記カバー用内視鏡４の
挿入部１４には軸方向に沿って平面部１６が形成され、
断面形状が略Ｄ字形状を呈している。この挿入部１４を
構成するＤ字形状の可撓管１５は、円形断面形状の螺旋
管の外表面に網状管及び樹脂を被覆して構成したものを
Ｄ字形状にプレス成形したものであり、先端側には同断
面形状の湾曲部及び先端構成部が連接されている。As shown in FIG. 2, a flat surface portion 16 is formed in the insertion portion 14 of the cover endoscope 4 along the axial direction.
The cross-sectional shape is substantially D-shaped. The D-shaped flexible tube 15 forming the insertion portion 14 is a D-shaped press formed by forming a mesh tube and resin on the outer surface of a spiral tube having a circular cross section. A curved portion having the same cross-sectional shape and a tip forming portion are connected to the tip side.
【００２２】図３に示すようにカバー用内視鏡４の可撓
管１５は、断面形状をＤ字形状に形成したことによって
単体で挿入部を上下方向（図中矢印Ａ）に湾曲させる場
合と左右方向（図中矢印Ｂ）に湾曲させる場合とでは異
なる可撓性を示す。すなわち、カバー用内視鏡４の可撓
管１５は、上下方向に湾曲させる場合、高い可撓性（曲
がり易く）を示し、左右方向に湾曲させる場合、低い可
撓性（曲がり難い）を示す。As shown in FIG. 3, when the flexible tube 15 of the cover endoscope 4 has a D-shaped cross section, the insertion portion is bent in the vertical direction (arrow A in the figure) by itself. Shows flexibility different from the case of bending in the left and right direction (arrow B in the figure). That is, the flexible tube 15 of the cover endoscope 4 exhibits high flexibility (easy to bend) when bent in the up-down direction, and low flexibility (hard to bend) when bent in the left-right direction. .
【００２３】図４に示すようにカバー用内視鏡４が挿入
される内視鏡カバー３のカバー先端部材３１にはカバー
用内視鏡４の光学面が対設するレンズカバー４２と処置
具が挿通される処置具挿通用チャンネル開口部４３及び
レンズカバー４２に向かって設けられた送気送水ノズル
４４が備わり、カバー先端部材３１から手元側の口体部
３０にかけての挿入部カバー部内には後述する処置具挿
通用チャンネルチューブ，送気チューブ及び送水チュー
ブが挿通されている。なお、前記口体部３０には処置具
挿通用チャンネルチューブに連通する鉗子口３２が設け
られている。As shown in FIG. 4, the cover tip member 31 of the endoscope cover 3 into which the cover endoscope 4 is inserted has a lens cover 42 on which the optical surface of the cover endoscope 4 faces and a treatment tool. There is a treatment tool insertion channel opening 43 through which an insert is inserted and an air / water supply nozzle 44 provided toward the lens cover 42, and in the insertion part cover part from the cover tip member 31 to the mouth part 30 on the proximal side. A treatment instrument insertion channel tube, an air supply tube, and a water supply tube, which will be described later, are inserted. It should be noted that the mouth portion 30 is provided with a forceps port 32 communicating with the treatment instrument insertion channel tube.
【００２４】ここで、内視鏡カバー３の挿入部カバー部
２２の構成を説明する。図５（ａ）に示すように挿入部
カバー部２２の内部空間には処置具挿通用チャンネルチ
ューブ５１，送気チューブ５２及び送水チューブ５３が
配設されると共に、残りの空間部の所定位置に挿入部の
断面形状が略Ｄ字形状のカバー用内視鏡４が挿通される
ようになっている。Here, the structure of the insertion portion cover portion 22 of the endoscope cover 3 will be described. As shown in FIG. 5A, a treatment instrument insertion channel tube 51, an air supply tube 52, and a water supply tube 53 are arranged in the internal space of the insertion section cover 22, and at a predetermined position of the remaining space. The cover endoscope 4 having a substantially D-shaped cross section is inserted.
【００２５】そして、前記挿入部カバー部２２のカバー
用内視鏡４の挿入部１４の比較的高い可撓性を示す曲げ
方向（図において上下方向）に対設する挿入部カバー２
２内には内視鏡の可撓性に方向性を持たせるために可撓
性調整手段として可撓性の比較的低い樹脂線材５４が軸
方向に埋込まれている。このため、この内視鏡カバー３
は、単体のとき、左右方向に高い可撓性（曲がり易く）
を示し、上下方向に低い可撓性（曲がり難い）を示す構
成となっている。Then, the insertion section cover 2 is provided opposite to the insertion section 14 of the cover endoscope 4 of the insertion section cover section 22 in the bending direction (vertical direction in the figure) showing relatively high flexibility.
A resin wire rod 54 having a relatively low flexibility is embedded in the axial direction 2 as a flexibility adjusting means in order to give the endoscope a directionality. Therefore, this endoscope cover 3
Is highly flexible in the left-right direction when used alone (easy to bend)
Is shown, and has a configuration showing low flexibility (hard to bend) in the vertical direction.
【００２６】従って、カバー式内視鏡２は、上述のよう
に単体で上下方向に高い可撓性を示し、左右方向に低い
可撓性を示すように構成されているカバー用内視鏡４
を、単体で左右方向に高い可撓性示し、上下方向に低い
可撓性を示す構成の内視鏡カバー３に装着して構成され
るようになる。Therefore, as described above, the cover-type endoscope 2 alone has a high flexibility in the up-down direction and a low flexibility in the left-right direction.
Is attached to the endoscope cover 3 configured to have high flexibility in the left-right direction and low flexibility in the up-down direction by itself.
【００２７】すなわち、具体的には例えば、可撓性に方
向性のあるカバー用内視鏡４の単体での上下方向の可撓
性と左右方向の可撓性との間の可撓性値が◎ 上下方向：左右方向＝Ａ：Ｂ の関係であれば、◎ 内視鏡カバー３の挿入部カバー部２２の単体での上下方
向の可撓性と左右方向の可撓性との間の可撓性値を◎ 上下方向：左右方向＝Ｂ：Ａ◎ の関係となるように可撓性調整手段である樹脂線材５４
を軸方向に埋め込んで前記カバー用内視鏡４の方向性に
相反する関係となるように内視鏡カバー単体に方向性を
持たせている。なお、挿入部カバー部に埋設する可撓性
調整手段である樹脂線材の位置及び本数は実施例に限定
されるものではなく、複数本埋設したり長さ・埋設位置
を調整するなど適宜対応できる構成となっている。That is, specifically, for example, the flexibility value between the flexibility in the vertical direction and the flexibility in the horizontal direction of the cover endoscope 4 having a directional flexibility is independent. ◎ Vertical direction: horizontal direction = A: B relationship, ◎ between the vertical flexibility and the horizontal flexibility of the insertion section cover portion 22 of the endoscope cover 3 alone. The resin wire 54 which is the flexibility adjusting means has a flexibility value of ∘: up / down direction: left / right direction = B: A∘.
Is embedded in the axial direction so that the endoscope cover itself has directivity so as to be in a relationship that is contrary to the directivity of the cover endoscope 4. The position and the number of the resin wire rods, which are the flexibility adjusting means embedded in the insertion portion cover portion, are not limited to those in the embodiment, and a plurality of resin wire rods may be embedded or the length and the embedding position may be adjusted as appropriate. It is composed.
【００２８】このように、挿入部の上下方向の可撓性と
左右方向の可撓性とが異なるカバー用内視鏡と可撓性調
整手段を設けた内視鏡カバーとを組み合わせてカバー式
内視鏡を構成することによって、使用状態において可撓
性に方向性が生じず、操作性が大幅に向上する。As described above, the cover type in which the endoscope for cover and the endoscope cover provided with the flexibility adjusting means have different flexibility in the vertical direction and the lateral flexibility of the insertion portion are combined. By configuring the endoscope, the directional property does not occur in flexibility in the use state, and the operability is significantly improved.
【００２９】また、同図の（ｂ）に示すように前記挿入
部カバー部２２ａをマルチルーメンチューブで形成する
際にも同様の構成とすることによって同様の作用及び効
果を得ることができる。同部材には同符号を付して説明
を省略する。なお、符号５５はカバー用内視鏡挿通用開
口であり、符号５６は処置具挿通用チャンネル用開口、
符号５７は送気チューブ用開口、符号５８は送水チュー
ブ用開口である。Further, as shown in (b) of the figure, when the insertion portion cover portion 22a is formed of a multi-lumen tube, the same operation and effect can be obtained by using the same configuration. The same members are given the same reference numerals and the description thereof is omitted. Reference numeral 55 is an opening for inserting the cover endoscope, reference numeral 56 is an opening for a treatment instrument insertion channel,
Reference numeral 57 is an air supply tube opening, and reference numeral 58 is a water supply tube opening.
【００３０】さらに、同図の（ｃ）に示すようにチュー
ブを押し出し成形で形成する際、硬度高めの樹脂５９を
所定の位置に配置させて形成してもよい。又、挿入部カ
バー部２２ａをマルチルーチンチューブで形成する際、
図６（ａ），（ｂ），（ｃ）に示すようにマルチルーメ
ンチューブの肉厚を場所により薄肉部６１や厚肉部６２
を形成することによって可撓性に方向性を形成するよう
にしてもよい。Further, as shown in (c) of the figure, when the tube is formed by extrusion molding, the resin 59 having a higher hardness may be arranged at a predetermined position. Also, when forming the insertion portion cover portion 22a with a multi-routine tube,
As shown in FIGS. 6A, 6B, and 6C, the wall thickness of the multi-lumen tube may vary depending on the location, such as a thin wall portion 61 or a thick wall portion 62.
The directionality may be flexibly formed by forming the.
【００３１】図７及び図８は本発明の第２実施例に係
り、図７はカバー用内視鏡挿入部の概略構成を示す説明
図、図８はカバー用内視鏡に可撓性調整部材を配設した
状態を示す図である。図７に示すように断面形状がＤ字
形状のカバー用内視鏡挿入部１４の可撓管１５は、Ｄ字
形状を呈する螺旋管７１に網状管７２及び樹脂で形成し
た外皮７３を被覆して構成されている。FIGS. 7 and 8 relate to the second embodiment of the present invention, FIG. 7 is an explanatory view showing a schematic structure of an endoscope insertion portion for a cover, and FIG. 8 is a flexibility adjustment for the endoscope for a cover. It is a figure which shows the state which has arrange | positioned the member. As shown in FIG. 7, the flexible tube 15 of the cover endoscope insertion portion 14 having a D-shaped cross section covers a D-shaped spiral tube 71 with a mesh tube 72 and an outer cover 73 formed of resin. Is configured.
【００３２】そして、図８に示すように螺旋管７１及び
網状管７２を前記図５（ｃ）に示したように硬度の異な
る二種類の樹脂で形成した外皮７３ａで被覆することに
より、内視鏡カバー３と同様にカバー用内視鏡単体での
挿入部１４の可撓性に方向性を無くしている。Then, as shown in FIG. 8, the spiral tube 71 and the mesh tube 72 are covered with an outer skin 73a formed of two kinds of resins having different hardness as shown in FIG. Like the mirror cover 3, the insertion portion 14 of the cover endoscope alone has no directionality.
【００３３】このように、カバー用内視鏡挿入部を構成
する螺旋管及び網状管を被覆する外皮を硬度の異なる二
種類の樹脂で形成してカバー用内視鏡挿入部の可撓性に
方向性を無くすことによって、使い捨てである内視鏡カ
バーに可撓性調整部材を配設する必要が無くなるので安
価な構成のカバー式内視鏡を提供することができる。As described above, the outer skin for covering the spiral tube and the reticulated tube constituting the endoscope insertion portion for the cover is made of two kinds of resins having different hardness to make the endoscope insertion portion for the cover flexible. By eliminating the directivity, it is not necessary to dispose the flexible adjusting member on the disposable endoscope cover, and thus it is possible to provide a cover-type endoscope having an inexpensive structure.
【００３４】また、図９に示すようにカバー用内視鏡挿
入部１４の断面形状は、Ｄ字形状に限定されるものでは
なく、対面する位置に平面部７５を設け、内視鏡カバー
３に設けられる複数の管路６５，６６，６７をカバー用
内視鏡挿通用透孔５５を挟んで配設する構成など種々の
形態に対応することができる。なお、同部材には同符号
を付して説明を省略する。Further, as shown in FIG. 9, the cross-sectional shape of the cover endoscope insertion portion 14 is not limited to the D-shape, but the flat surface portion 75 is provided at the facing position, and the endoscope cover 3 is provided. It is possible to deal with various forms such as a configuration in which a plurality of conduits 65, 66, 67 provided in the above are arranged with the through-hole 55 for inserting the cover endoscope inserted therebetween. The same members are designated by the same reference numerals and the description thereof will be omitted.
【００３５】なお、本発明においては硬度の異なる樹脂
を部分的に配設するに限らず周方向に無段階的に変化さ
せるよう徐々に異種の樹脂を混合させて被覆するように
してもよい。In the present invention, the resins having different hardness are not limited to being partially provided, but different kinds of resins may be gradually mixed and coated so as to be continuously changed in the circumferential direction.
【００３６】また、同様の作用・効果を得るために被覆
される樹脂性の外皮を均一に形成する代わりに、螺旋管
と網状管とを多重に形成して、ロウ付けもしくは半田付
けを行う位置の間隔などを調整することによって可撓性
に方向性をもたせてもよい。In addition, instead of uniformly forming a resinous outer cover to obtain the same action and effect, a spiral tube and a mesh tube are multiply formed, and brazing or soldering is performed. The directionality may be given to the flexibility by adjusting the distance between the two.
【００３７】[0037]
【発明の効果】以上説明したように本発明によれば、内
視鏡カバーに装着されたカバー用内視鏡を湾曲操作する
際、湾曲部の湾曲操作性に曲げ易い方向、或は、曲げ難
い方向などの違いが生じない操作性に優れたカバー式内
視鏡を提供すること。As described above, according to the present invention, when the cover endoscope mounted on the endoscope cover is bent, the bending operability of the bending portion is easy to bend or the bending operation is difficult. (EN) Provided is a cover-type endoscope which is excellent in operability and does not cause a difference in a difficult direction.
【図１】図１ないし図５は本発明の第１実施例に係り、
図１は内視鏡システムの概略構成を説明する斜視図1 to 5 relate to a first embodiment of the present invention,
FIG. 1 is a perspective view illustrating a schematic configuration of an endoscope system.
【図２】カバー用内視鏡の外観を説明する斜視図FIG. 2 is a perspective view illustrating the appearance of a cover endoscope.
【図３】カバー用内視鏡挿入部の動作を説明する斜視図FIG. 3 is a perspective view illustrating the operation of the cover endoscope insertion portion.
【図４】内視鏡カバーの外観を説明する斜視図FIG. 4 is a perspective view illustrating the appearance of an endoscope cover.
【図５】内視鏡カバーに可撓性調整手段を配設した状態
を示す図FIG. 5 is a diagram showing a state in which a flexibility adjusting unit is provided on an endoscope cover.
【図６】内視鏡カバーに配設する可撓性調整手段の他の
例を示す図FIG. 6 is a view showing another example of the flexibility adjusting means arranged on the endoscope cover.
【図７】図７及び図８は本発明の第２実施例に係り、図
７はカバー用内視鏡挿入部の概略構成を示す説明図7 and 8 relate to a second embodiment of the present invention, and FIG. 7 is an explanatory diagram showing a schematic configuration of an endoscope insertion portion for a cover.
【図８】カバー用内視鏡に可撓性調整部材を配設した状
態を示す図FIG. 8 is a view showing a state in which a flexibility adjusting member is arranged on the endoscope for a cover.
【図９】他の断面形状のカバー用内視鏡に可撓性調整部
材を配設した状態を示す図FIG. 9 is a view showing a state in which a flexible adjusting member is provided in a cover endoscope having another cross-sectional shape.
２…カバー式内視鏡 ３…内視鏡カバー ４…カバー用内視鏡 ５４…樹脂線材（可撓性調整手段） 2 ... Cover-type endoscope 3 ... Endoscope cover 4 ... Cover endoscope 54 ... Resin wire (flexibility adjusting means)
Claims (1)
よって単体での左右方向の可撓性と上下方向の可撓性と
が異なるカバー用内視鏡と、このカバー用内視鏡の少な
くとも断面形状が非円形である挿入部を被覆する柔軟な
内視鏡カバーとを組み合わせるカバー式内視鏡におい
て、 前記挿入部の断面形状が非円形であるカバー用内視鏡、
或は、非円形である挿入部を被覆する内視鏡カバーの少
なくともどちらか一方に可撓性調整手段を設け、カバー
式内視鏡挿入部の左右方向の可撓性と上下方向の可撓性
との差を減少させることを特徴とするカバー式内視鏡。1. An endoscope for a cover, which has a non-circular cross-sectional shape of an insertion portion, which has different flexibility in the left-right direction and in the vertical direction, and a cover endoscope. In a cover-type endoscope in which at least a cross-sectional shape covers a non-circular insertion portion and a flexible endoscope cover, a cover endoscope in which the cross-sectional shape of the insertion portion is non-circular,
Alternatively, a flexibility adjusting means is provided on at least one of the endoscope covers that cover the non-circular insertion portion, and the cover-type endoscope insertion portion is flexible in the left-right direction and flexible in the up-down direction. A cover-type endoscope, which is characterized by reducing the difference with sex.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33183893A JP3342140B2 (en) | 1993-12-27 | 1993-12-27 | Cover-type endoscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33183893A JP3342140B2 (en) | 1993-12-27 | 1993-12-27 | Cover-type endoscope |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07184836A true JPH07184836A (en) | 1995-07-25 |
| JP3342140B2 JP3342140B2 (en) | 2002-11-05 |
Family
ID=18248222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP33183893A Expired - Fee Related JP3342140B2 (en) | 1993-12-27 | 1993-12-27 | Cover-type endoscope |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3342140B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010089923A1 (en) * | 2009-02-09 | 2010-08-12 | オリンパスメディカルシステムズ株式会社 | Medical tube |
| JP4841695B2 (en) * | 2009-06-22 | 2011-12-21 | オリンパスメディカルシステムズ株式会社 | Endoscope cleaning sheath |
| JP2014091017A (en) * | 2012-11-07 | 2014-05-19 | Hoya Corp | Flexible part structure of endoscope |
| JP2018528798A (en) * | 2015-08-13 | 2018-10-04 | コーニンクレッカ フィリップス エヌ ヴェＫｏｎｉｎｋｌｉｊｋｅ Ｐｈｉｌｉｐｓ Ｎ．Ｖ． | Catheter with optical sensing |
| WO2022074477A1 (en) * | 2020-10-07 | 2022-04-14 | Hoya Corporation | Endoscope comprising a flexible insertion tube and a bending portion |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20210186308A1 (en) | 2019-12-20 | 2021-06-24 | Gyrus Acmi, Inc. D/B/A Olympus Surgical Technologies America | Endoscope with detachable handle module |
| US12004708B2 (en) | 2020-04-30 | 2024-06-11 | Gyrus Acmi, Inc. | Insertion sheath for modular disposable endoscope components |
-
1993
- 1993-12-27 JP JP33183893A patent/JP3342140B2/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010089923A1 (en) * | 2009-02-09 | 2010-08-12 | オリンパスメディカルシステムズ株式会社 | Medical tube |
| US8894567B2 (en) | 2009-02-09 | 2014-11-25 | Olympus Medical Systems Corp. | Medical tube |
| JP4841695B2 (en) * | 2009-06-22 | 2011-12-21 | オリンパスメディカルシステムズ株式会社 | Endoscope cleaning sheath |
| US8663090B2 (en) | 2009-06-22 | 2014-03-04 | Olympus Medical Systems Corp. | Endoscope cleaning sheath |
| JP2014091017A (en) * | 2012-11-07 | 2014-05-19 | Hoya Corp | Flexible part structure of endoscope |
| JP2018528798A (en) * | 2015-08-13 | 2018-10-04 | コーニンクレッカ フィリップス エヌ ヴェＫｏｎｉｎｋｌｉｊｋｅ Ｐｈｉｌｉｐｓ Ｎ．Ｖ． | Catheter with optical sensing |
| US11045082B2 (en) | 2015-08-13 | 2021-06-29 | Koninklijke Philips N.V. | Catheter with optical sensing |
| WO2022074477A1 (en) * | 2020-10-07 | 2022-04-14 | Hoya Corporation | Endoscope comprising a flexible insertion tube and a bending portion |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3342140B2 (en) | 2002-11-05 |
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