JPS63281618A - Curved tube for endoscope - Google Patents

Curved tube for endoscope

Info

Publication number
JPS63281618A
JPS63281618A JP62118305A JP11830587A JPS63281618A JP S63281618 A JPS63281618 A JP S63281618A JP 62118305 A JP62118305 A JP 62118305A JP 11830587 A JP11830587 A JP 11830587A JP S63281618 A JPS63281618 A JP S63281618A
Authority
JP
Japan
Prior art keywords
wire
parts
coil
endoscope
nodal
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.)
Pending
Application number
JP62118305A
Other languages
Japanese (ja)
Inventor
Hideo Ito
秀雄 伊藤
Toshiyuki Takara
宝　敏幸
Mutsumi Yoshikawa
睦 吉川
Tatsuya Yamaguchi
達也 山口
Tsuguo Okazaki
次生 岡崎
Takeaki Nakamura
剛明 中村
Masaaki Hayashi
正明 林
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Olympus Corp
Original Assignee
Olympus Optical Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Olympus Optical Co Ltd filed Critical Olympus Optical Co Ltd
Priority to JP62118305A priority Critical patent/JPS63281618A/en
Publication of JPS63281618A publication Critical patent/JPS63281618A/en
Pending legal-status Critical Current

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
    • 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
    • A61B1/005—Flexible endoscopes
    • A61B1/0051—Flexible endoscopes with controlled bending of insertion part
    • A61B1/0055—Constructional details of insertion parts, e.g. vertebral elements
    • 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
    • A61B1/005—Flexible endoscopes
    • A61B1/0051—Flexible endoscopes with controlled bending of insertion part
    • A61B1/0057—Constructional details of force transmission elements, e.g. control wires

Abstract

PURPOSE:To facilitate assembling and to reduce the number of parts, by providing a large number of nodal parts, each of which is constituted by mutually closely bonding and fixing the respective runs of the wire like body of a coil excepting connection parts in the axial direction thereof, at an almost equal interval and mounting wire guides for guiding a curving operating wire to the insides of the nodal parts to constitute a curved tube. CONSTITUTION:The connection parts 3a, 3b connected to the leading end part and flexible tube part of an endoscope are provided to both ends of a coil 1 formed by spirally winding a wire like body 2 made of a metal having elasticity and one end of a curving operating wire 4 is fixed to the inside of the connection part 3a connected to the leading end part of the endoscope by soldering. A large number of nodal parts 5... are provided to the coil 1 excepting the connection parts 3, 3 in the axial direction thereof at an equal interval. Each of the nodal parts 5 is formed by mutually closely bonding and fixing the respective runs of the wire like body 2 by solder or an adhesive and the wire guides 6 for guiding the curving operating wire 4 are mounted to the inside of the nodal parts 5 at an almost 90 deg.-interval in the peripheral direction. By this constitution, the coil 1 can be used as the curved tube of the endoscope by the drawing operation of the operating wire 4.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、内視鏡に用いられる湾曲管に関する。[Detailed description of the invention] [Industrial application field] The present invention relates to a curved tube used in an endoscope.

〔従来の技術〕[Conventional technology]

一般に、内視鏡は挿入部と操作部とからなり、挿入部は
操作部側から可撓管、湾曲管および先端部を順次連結し
て構成されている。そして、操作部には湾曲操作ノブが
設けられ、この操作ノブで湾曲操作ワイヤーを牽引操作
することによって湾曲管を湾曲させるようになってる。Generally, an endoscope consists of an insertion section and an operation section, and the insertion section is constructed by sequentially connecting a flexible tube, a curved tube, and a distal end section from the operation section side. The operating section is provided with a bending operation knob, and the bending tube is bent by pulling the bending operation wire with this operation knob.

〔発明が解決しようとする問題点〕[Problem that the invention seeks to solve]

しかしながら、従来の内視鏡用湾曲管は短管状に形成さ
れた複数個の節輪をビンで回動自在に連結して構成され
ているため、組立てに手間がかかり、部品点数も多いと
いう問題があった。However, conventional curved tubes for endoscopes are constructed by rotatably connecting multiple joint rings formed in the shape of a short tube with a pin, so there are problems in that it takes time and effort to assemble and has a large number of parts. was there.

本発明は、このような問題点に着目してなされたもので
、その目的とするところは、組立てが容易で部品点数を
低減できる内視鏡用湾曲管を提供することにある。The present invention has been made in view of these problems, and its purpose is to provide a curved tube for an endoscope that is easy to assemble and can reduce the number of parts.

〔問題点を解決するための手段〕[Means for solving problems]

かかる目的を達成するために本発明は、弾性を有する線
状体を螺旋状に巻回してコイルを形成し、該コイルの両
端部に内視鏡の可撓管および先端部と連結する連結部を
設けると共に、上記連結部を除くコイルの軸方向に前記
線状体を互いに密着固定してなる複数の節部をほぼ等間
隔に設け、かつ上記節部の内側に湾曲操作ワイヤーを案
内するワイヤーガイドを取着してなることを特徴とする
特のである。In order to achieve such an object, the present invention provides a coil by spirally winding an elastic linear body, and a connecting portion connected to both ends of the coil with a flexible tube and a distal end portion of an endoscope. and a plurality of joints formed by closely fixing the linear bodies to each other in the axial direction of the coil except for the connecting parts, and a wire that guides the bending operation wire inside the joints. It is special in that it comes with a guide attached.

〔作　用〕[For production]

上記の構成によると、従来のように複数個の節輪を連結
しなくても湾曲管を容易に組立てることができ、しかも
部品点数を低減することができる。According to the above configuration, the curved pipe can be easily assembled without connecting a plurality of node rings as in the conventional case, and the number of parts can be reduced.

〔実　施　例〕〔Example〕

以下、本発明の実施例を図面を用いて説明する。 Embodiments of the present invention will be described below with reference to the drawings.

第１図〜第３図は本発明の一実施例を示すもので、１は
金属等の弾性を有する線状体２を螺旋状に巻回して形成
されたコイルである。このコイル１の両端部には内視鏡
の先端部および可撓管部に連結する連結部３ａ、３ｂが
設けられ、内視鏡の先端部に連結する連結部３ａの内側
には湾曲操作ワイヤー４の一端がロー付は等により固着
されている。なお、連結部３ａ、３ｂは上記線状体２を
半日または接着剤等により互いに密着固定して形成され
ている。また、上記連結部３，３を除くコイル１の軸方
向には複数の節部５・・・がほぼ等間隔に設けられてい
る。この節部５は線状体２を半田または接着剤等により
互いに密着固定して形成されており、各節部５の内側に
は湾曲操作ワイヤー４を案内するワイヤーガイド６が周
方向にほぼ９０度の間隔で取付けられている。1 to 3 show one embodiment of the present invention, and 1 is a coil formed by spirally winding an elastic linear body 2 made of metal or the like. Connecting parts 3a and 3b connected to the distal end of the endoscope and the flexible tube are provided at both ends of the coil 1, and a bending operation wire is provided inside the connecting part 3a connected to the distal end of the endoscope. One end of 4 is fixed by brazing or the like. Note that the connecting portions 3a and 3b are formed by closely fixing the linear bodies 2 to each other by half-width or adhesive. Further, a plurality of node portions 5 . . . are provided at approximately equal intervals in the axial direction of the coil 1, excluding the connecting portions 3, 3. The joints 5 are formed by closely fixing the linear bodies 2 to each other with solder or adhesive, and inside each joint 5, a wire guide 6 for guiding the bending operation wire 4 is provided at approximately 90 degrees in the circumferential direction. installed at intervals of

上記の構成によると、コイル１は操作ワイヤー４を牽引
操作することによって第３図の如（上下および左右に湾
曲するので、内視鏡の湾曲管として使用することができ
る。従って、本実施例では従来のように複数個の節輪を
連結しなくても湾曲管を容易に組立てることができ、し
かも部品点数を低減することができる。According to the above structure, the coil 1 can be bent vertically and horizontally as shown in FIG. 3 by pulling the operating wire 4, so it can be used as a curved tube of an endoscope. Now, the curved pipe can be easily assembled without connecting a plurality of joint rings as in the conventional method, and the number of parts can be reduced.

〔発明の効果〕〔Effect of the invention〕

以上説明したように本発明によれば、弾性を有する線状
体を螺旋状に巻回してコイルを形成し、該コイルの両端
部に内視鏡の可撓管および先端部に連結する連結部を設
けると共に、上記連結部を除くコイルの軸方向に前記線
状体を互いに密着固定してなる複数の節部をほぼ等間隔
に設け、かつ上記節部の内側に湾曲操作ワイヤーを案内
するワイヤーガイドを取着して湾曲管を構成するように
したので、組立てが容易で部品点数を低減することがで
きる内視鏡用湾曲管を提供できる。As explained above, according to the present invention, an elastic linear body is spirally wound to form a coil, and connecting portions at both ends of the coil are connected to the flexible tube and the distal end portion of the endoscope. and a plurality of joints formed by closely fixing the linear bodies to each other in the axial direction of the coil except for the connecting parts, and a wire that guides the bending operation wire inside the joints. Since the guide is attached to form the curved tube, it is possible to provide a curved tube for an endoscope that is easy to assemble and can reduce the number of parts.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図〜第３図は本発明の一実施例を示し、第１図は湾
曲管の全体図、第２図はその断面図、第３図は湾曲管を
湾曲させた状態を示す断面図である。 １・・・コイル、２・・・線状体、３ａ、３ｂ・・・連
結部、４・・・湾曲操作ワイヤー、５・・・節部、６・
・・ワイヤーガイド。 出願人代理人　弁理士　坪井　　淳 ゛４ 第２図1 to 3 show one embodiment of the present invention, FIG. 1 is an overall view of a curved tube, FIG. 2 is a cross-sectional view thereof, and FIG. 3 is a cross-sectional view showing the curved tube in a curved state. It is. DESCRIPTION OF SYMBOLS 1... Coil, 2... Linear body, 3a, 3b... Connecting part, 4... Curving operation wire, 5... Knot part, 6...
・Wire guide. Applicant's agent Patent attorney Jun Tsuboi 4 Figure 2

Claims (1)

【特許請求の範囲】[Claims] 弾性を有する線状体を螺旋状に巻回してコイルを形成し
、該コイルの両端部に内視鏡の可撓管および先端部に連
結する連結部を設けると共に、上記連結部を除くコイル
の軸方向に前記線状体を互いに密着固定してなる複数の
節部をほぼ等間隔に設け、かつ上記節部の内側に湾曲操
作ワイヤーを案内するワイヤーガイドを取着してなるこ
とを特徴とする内視鏡用湾曲管。A coil is formed by winding an elastic linear body in a helical manner, and connecting portions are provided at both ends of the coil to connect to the flexible tube and tip of the endoscope. A plurality of joints formed by closely fixing the linear bodies to each other in the axial direction are provided at approximately equal intervals, and a wire guide for guiding the bending operation wire is attached to the inside of the joints. A curved tube for endoscopes.
JP62118305A 1987-05-15 1987-05-15 Curved tube for endoscope Pending JPS63281618A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62118305A JPS63281618A (en) 1987-05-15 1987-05-15 Curved tube for endoscope

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62118305A JPS63281618A (en) 1987-05-15 1987-05-15 Curved tube for endoscope

Publications (1)

Publication Number Publication Date
JPS63281618A true JPS63281618A (en) 1988-11-18

Family

ID=14733394

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62118305A Pending JPS63281618A (en) 1987-05-15 1987-05-15 Curved tube for endoscope

Country Status (1)

Country Link
JP (1) JPS63281618A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5005558A (en) * 1988-05-16 1991-04-09 Kabushiki Kaisha Toshiba Endoscope
WO1992003964A1 (en) * 1990-09-12 1992-03-19 Adair Edwin Lloyd Deflectable sheath for optical catheter
WO2003059429A3 (en) * 2002-01-09 2003-12-31 Medtronic Inc Steerable catheter o.t.l
WO2007015334A1 (en) 2005-08-01 2007-02-08 Olympus Medical Systems Corp. Endoscope and endoscope insertion section
JP2007061218A (en) * 2005-08-29 2007-03-15 Olympus Medical Systems Corp Endoscope
JP2014023712A (en) * 2012-07-26 2014-02-06 Olympus Corp Insertion apparatus
US20140155697A1 (en) * 2011-11-04 2014-06-05 Olympus Corporation Flexible tubular portion of endoscope and endoscope having this flexible tubular portion

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5005558A (en) * 1988-05-16 1991-04-09 Kabushiki Kaisha Toshiba Endoscope
WO1992003964A1 (en) * 1990-09-12 1992-03-19 Adair Edwin Lloyd Deflectable sheath for optical catheter
WO2003059429A3 (en) * 2002-01-09 2003-12-31 Medtronic Inc Steerable catheter o.t.l
US6907298B2 (en) 2002-01-09 2005-06-14 Medtronic, Inc. Method and apparatus for imparting curves in implantable elongated medical instruments
WO2007015334A1 (en) 2005-08-01 2007-02-08 Olympus Medical Systems Corp. Endoscope and endoscope insertion section
EP1911388A1 (en) * 2005-08-01 2008-04-16 Olympus Medical Systems Corp. Endoscope and endoscope insertion section
EP1911388A4 (en) * 2005-08-01 2012-07-25 Olympus Medical Systems Corp Endoscope and endoscope insertion section
JP2007061218A (en) * 2005-08-29 2007-03-15 Olympus Medical Systems Corp Endoscope
JP4754905B2 (en) * 2005-08-29 2011-08-24 オリンパスメディカルシステムズ株式会社 Endoscope
US20140155697A1 (en) * 2011-11-04 2014-06-05 Olympus Corporation Flexible tubular portion of endoscope and endoscope having this flexible tubular portion
US9820633B2 (en) * 2011-11-04 2017-11-21 Olympus Corporation Flexible tubular portion of endoscope and endoscope having this flexible tubular portion
JP2014023712A (en) * 2012-07-26 2014-02-06 Olympus Corp Insertion apparatus

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