JPS59197233A - Endoscope - Google Patents

Endoscope

Info

Publication number
JPS59197233A
JPS59197233A JP58072519A JP7251983A JPS59197233A JP S59197233 A JPS59197233 A JP S59197233A JP 58072519 A JP58072519 A JP 58072519A JP 7251983 A JP7251983 A JP 7251983A JP S59197233 A JPS59197233 A JP S59197233A
Authority
JP
Japan
Prior art keywords
tightening
tool
outer skin
tube
endoscope
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
JP58072519A
Other languages
Japanese (ja)
Inventor
高木 武司
善財 充
明浩 大久保
小俣 勝美
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 Corp
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 Corp, Olympus Optical Co Ltd filed Critical Olympus Corp
Priority to JP58072519A priority Critical patent/JPS59197233A/en
Publication of JPS59197233A publication Critical patent/JPS59197233A/en
Pending legal-status Critical Current

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  • Instruments For Viewing The Inside Of Hollow Bodies (AREA)
  • Endoscopes (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。
(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【発明の詳細な説明】 本発明は湾曲管の外皮チューブを固定する構造を改良し
た内視鏡に関する。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an endoscope with an improved structure for fixing a curved outer skin tube.

一般に、内視鏡挿入部における湾曲管部分は他の可撓管
部分とは異なり、強制的に大きく梗種の方向に湾曲させ
られるため、その外皮材にはゴム製のチューブが用いら
れる。そして、この外皮チー−ブの両端縁はそれぞれ気
否的に固定されなければならない。
Generally, unlike other flexible tube sections, the curved tube section of the endoscope insertion section is forcibly bent largely in the direction of the infarction, so a rubber tube is used as the outer covering material. Both ends of the outer skin tube must be securely fixed.

従来の固定方法はその外皮チー−プの両端部外周に糸を
密に巻き付けて締め付けるとともに、その糸のほつれを
防止するため接着剤全塗布して固めていた。
The conventional method of fixing was to tightly wrap a thread around the outer periphery of both ends of the outer skin and tighten it, and to prevent the thread from fraying, adhesive was applied completely to harden it.

しかし、この従来の方法ではその作業工数の増大、作業
のばらつきが起き、または工程日数が多くかかるなどの
欠点があった。さらに、内視鏡を使用することにょシ上
記締付は用糸や接着剤が消毒薬液などで次第に劣化し、
糸巻部にほつれなどが生じる欠点もあった。
However, this conventional method has drawbacks such as an increase in the number of man-hours, variations in work, and a long process time. Furthermore, when using an endoscope, the threads and adhesives used in the tightening described above may gradually deteriorate due to disinfectant solution, etc.
There was also the drawback that fraying occurred at the thread winding section.

本発明は上記事情に着目してなされたもので、その目的
とするところは簡単な組立て方法により湾曲管の外皮チ
ューブを気密的に確実に固定できるとともに、その耐久
性にすぐれた内視鏡を提供することにある・ 以下、本発明の一実施例を第1図ないし第5図にもとづ
いて説明する。
The present invention has been made in view of the above-mentioned circumstances, and its purpose is to provide an endoscope that can securely and airtightly fix the outer skin tube of a curved tube using a simple assembly method, and has excellent durability. An embodiment of the present invention will be described below with reference to FIGS. 1 to 5.

第1図は医療用の内視鏡1を示す。この内視鏡1は操作
部2、挿入部3およびライトガイドコード4からなり、
上記操作部2には接眼部5および湾曲操作ノブ6が設け
られている。
FIG. 1 shows a medical endoscope 1. FIG. This endoscope 1 consists of an operating section 2, an insertion section 3, and a light guide cord 4.
The operation section 2 is provided with an eyepiece section 5 and a bending operation knob 6.

上記挿入部3は可撓管7を基端側としてこの可撓管7の
先端に湾曲管8゛を介して硬性の先端部材9を連結して
なり、上記湾曲管8は操作部2の湾曲操作ノブ6を操作
することにより図示しない操作ワイヤ等を介して遠隔的
に湾曲させられるようになっている。
The insertion section 3 has a flexible tube 7 as its proximal end, and a hard distal end member 9 is connected to the distal end of the flexible tube 7 via a curved tube 8. By operating the operating knob 6, it can be bent remotely via an operating wire (not shown) or the like.

さらに、上記湾曲管8は第2図で示すように構成される
。すなわち、この芯材10はそろばん玉形状のパイプか
らなる複数の湾曲用こま1ノ・・・を挿入部3の軸方向
に配列するとともにその湾曲用こま11・・・同士を互
いに枢着してなる。芯材10の外周には金属素線を−ん
で筒状に形成したグレード12が被嵌されている。さら
に、このブレード12の外周にはゴム製の外皮チー−プ
13が被嵌されている。この外皮チ:、−−ブ13の先
端縁部13aは第3図で示すように先端部材9の後端外
周に被嵌されている。
Furthermore, the curved tube 8 is constructed as shown in FIG. That is, this core material 10 has a plurality of bending pieces 1 made of abacus bead-shaped pipes arranged in the axial direction of the insertion portion 3, and the bending pieces 11 are pivotally connected to each other. Become. A grade 12 formed into a cylindrical shape using metal wires is fitted onto the outer periphery of the core material 10. Furthermore, a rubber outer skin chip 13 is fitted around the outer periphery of the blade 12. The tip edge 13a of the outer skin tip 13 is fitted over the outer periphery of the rear end of the tip member 9, as shown in FIG.

また、その先端縁部13aを被嵌する先端部材9の後端
外周にはその周方向に沿って溝14が形成されていて、
この溝14に対して上記先端縁部13aを嵌め込むよう
にしである。また、外皮チー−プ13の後端縁部13b
は第4図で示すように可撓管7との連結用管15の外周
に被嵌されている。
Further, a groove 14 is formed along the circumferential direction on the outer periphery of the rear end of the tip member 9 into which the tip edge 13a is fitted.
The tip edge 13a is fitted into this groove 14. In addition, the rear end edge 13b of the outer skin cheek 13
is fitted over the outer periphery of the connecting tube 15 with the flexible tube 7, as shown in FIG.

そして、上記外皮チー−ブ13の先後両端縁部13a、
13bの外周にはそれぞれリング状の締付は具16.1
7が被嵌a tLでおり、この各締付は具16.17に
よって各端縁部13a。
And both front and rear end edges 13a of the outer skin cheese 13,
Each ring-shaped tightening tool 16.1 is attached to the outer circumference of 13b.
7 is fitted at L, and each end portion 13a is tightened by means of tools 16 and 17.

13bfそれぞれの部分に締付は固定するようになって
いる。ところで、締付は具16.17は形状記憶合金に
よって短かい舌状に形成されている。ここで使用する形
状記憶合金としては種々のものが考えられるが、たとえ
ばTi−Ni系合金が用いられている。そして、この締
付は共16.17はある変態温度(Tz)以下で人為的
に約8%程度大径になるように見掛は土星性変形し、上
記変態温度(Tz)以上に加熱することによって事前の
形状寸法まで復帰(収縮)するものを用いる。また、上
記変態温度(Tz )としては作業上約50℃のものが
望ましい。もっとも、その温度は一70℃〜+70℃の
範囲で種種選択可能である。
The tightening is fixed to each part of 13bf. By the way, the tightening tools 16 and 17 are formed into short tongue shapes made of shape memory alloy. Various shape memory alloys can be considered as the shape memory alloy used here, and for example, a Ti-Ni alloy is used. Then, this tightening causes apparent Saturnian deformation to artificially increase the diameter by about 8% below a certain transformation temperature (Tz), and then heats it above the above transformation temperature (Tz). A material that can return (shrink) to its original shape and dimensions is used. Further, the transformation temperature (Tz) is desirably about 50° C. for operational reasons. However, the temperature can be selected from a range of -70°C to +70°C.

また、この締付は具16.17により外皮チューブ13
を締付は固定する手順は次のように行なわれる。まず、
締付は具1に、17を大径に塑性変形させる一方、外皮
テー−ブ13の両端縁部13a、13bをそれぞれ所定
の位置に仮止めする。このとき外皮チー−プ13の両端
縁部13a、13bの内面にあらかじめ接着剤を塗布し
ておき、接着固定する。この後、上記λ・16付は具1
6 、17fそれぞれ各端縁部13a。
In addition, this tightening is performed using tools 16 and 17 on the outer skin tube 13.
The procedure for tightening and fixing is as follows. first,
The tightening is performed by plastically deforming the tool 17 to a large diameter, while temporarily fixing both end edges 13a and 13b of the outer skin tape 13 at predetermined positions. At this time, an adhesive is applied in advance to the inner surfaces of both end edges 13a and 13b of the outer skin chip 13, and the adhesive is fixed. After this, the above λ・16 is attached to the tool 1.
6, 17f, each edge portion 13a.

13bの外周に被嵌し、約50℃より高めに加熱し、そ
の締付は具16.17を収縮させる。
The tool 16, 17 is fitted onto the outer periphery of the tool 13b and heated to a temperature higher than about 50 DEG C., and its tightening causes the tool 16, 17 to contract.

これによりそれぞれの端縁部13a、13bが強く締め
付は固定される。さらに、必要に応じて固定後の締付は
具16.17の外面およびその近辺に酸化防止、温気絶
縁化のための塗料18あるいは接着剤やセラ′ミック剤
など′ff:塗布する。
As a result, the respective end edges 13a and 13b are strongly tightened and fixed. Furthermore, if necessary, for tightening after fixing, paint 18, adhesive, ceramic agent, or the like is applied to the outer surface of the fixtures 16 and 17 and its vicinity for oxidation prevention and thermal insulation.

なお、この塗布によシその周辺の外面が平らになる。Note that this application flattens the outer surface of the area around it.

第6図および第7図はそれぞれ締付は具16゜17の変
形例を示す。第6図で示すものは内面に多数の小溝19
・・・全形成してなシ、外皮テー−プ13との結合を高
めるようにしたものである。第7図で示すものは締付は
具16.17の両端にまるみ20.20をつけたもので
ある。
6 and 7 show modifications of the tightening tools 16 and 17, respectively. The one shown in Fig. 6 has many small grooves 19 on the inner surface.
. . . It is not completely formed, but is designed to enhance the bonding with the outer skin tape 13. In the case shown in FIG. 7, roundness 20.20 is provided at both ends of the tightening tool 16.17.

以上説明したように本発明は形状記憶効果を利用する締
付は具によシ湾曲管の外皮チューブを締付は固定するも
のである。このため、固定作業がきわめて容易になると
ともに、作業のばらつきもなく、短時間で確実に固定で
きる。また、糸のほつれや劣化現象もなく、l?W久住
が大巾に高まる。
As explained above, the present invention fastens and fixes the outer skin tube of a curved pipe using a fastening tool that utilizes the shape memory effect. Therefore, the fixing work is extremely easy, there is no variation in the work, and the fixing can be done reliably in a short time. In addition, there are no fraying or deterioration phenomena of the threads, and l? W Kusumi rises to a high pitch.

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

第1図は本発明の一実施例としての内視鏡の1111而
図、第2図は同じく挿入部の一部切欠して示すX14I
I ti図、第3図および第4図は同じく外皮テー−ブ
の固定部の断面図、第5図は同じくその締付は具の断面
図、第6図および第7図はそれぞれ異なる他の実施例に
おける締付は具の側断面図である。 1・・・内視鏡、3・・・挿入部、7・・・可撓管、8
・・・湾曲管、9・・・先端部材、13・・・外皮チュ
ーブ、15・・・連結用管、16・・・締付は具、17
・・・締付は具、18・・・塗料。 出願人代理人  弁理士 鈴 江 武 彦第1図
Fig. 1 is a 1111 diagram of an endoscope as an embodiment of the present invention, and Fig. 2 is a partially cutaway view of the insertion section.
Figures Iti, 3 and 4 are also sectional views of the fixing part of the skin tape, Figure 5 is a sectional view of the tightening tool, and Figures 6 and 7 are respectively different The tightening in the example is a side sectional view of the tool. 1... Endoscope, 3... Insertion section, 7... Flexible tube, 8
... Curved pipe, 9 ... Tip member, 13 ... Outer tube, 15 ... Connection pipe, 16 ... Tightening tool, 17
...Tighten with tools, 18...paint. Applicant's agent Patent attorney Takehiko Suzue Figure 1

Claims (2)

【特許請求の範囲】[Claims] (1)  内視鏡挿入部の湾曲管における外皮チューブ
と、この外皮チューブの外周に被嵌され形状記憶合金か
らリング状に形成してな9復帰変形により上記外皮テー
−ズを締め付けて固定する締付は具とを具備したことを
特徴とする内視鏡。
(1) An outer skin tube in the curved tube of the endoscope insertion portion, and a ring-shaped member formed from a shape memory alloy that is fitted over the outer periphery of the outer skin tube, and tightens and fixes the above-mentioned outer skin teeth by 9 return deformations. An endoscope characterized by comprising a tightening tool.
(2)上記締付は具を復帰変形させて締付は固定した状
態においてその締付は具の外面を、酸化防止および電気
絶縁性を有する塗料で被覆したことを特徴とする特許請
求の範囲第1項に記載の内視鏡。
(2) Claims characterized in that the above-mentioned tightening causes the tool to return to deformation, and the tightening is performed in a fixed state, and the outer surface of the tool is coated with a paint having anti-oxidation and electrical insulation properties. The endoscope according to paragraph 1.
JP58072519A 1983-04-25 1983-04-25 Endoscope Pending JPS59197233A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58072519A JPS59197233A (en) 1983-04-25 1983-04-25 Endoscope

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58072519A JPS59197233A (en) 1983-04-25 1983-04-25 Endoscope

Publications (1)

Publication Number Publication Date
JPS59197233A true JPS59197233A (en) 1984-11-08

Family

ID=13491655

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58072519A Pending JPS59197233A (en) 1983-04-25 1983-04-25 Endoscope

Country Status (1)

Country Link
JP (1) JPS59197233A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61162106U (en) * 1985-03-27 1986-10-07
JPH09201326A (en) * 1996-01-25 1997-08-05 Olympus Optical Co Ltd Cover type endoscope
JP2009045134A (en) * 2007-08-15 2009-03-05 Hoya Corp Bend structure of endoscope
JP2009195456A (en) * 2008-02-21 2009-09-03 Hoya Corp Bend structure of endoscope
JP2012040307A (en) * 2010-08-23 2012-03-01 Olympus Corp Strip member and method for fixing outer surface to curved portion by using the strip member
CN105899121A (en) * 2014-08-29 2016-08-24 奥林巴斯株式会社 Insertion device
JP2017217250A (en) * 2016-06-08 2017-12-14 オリンパス株式会社 Curved envelope fixing structure and endoscope

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61162106U (en) * 1985-03-27 1986-10-07
JPH09201326A (en) * 1996-01-25 1997-08-05 Olympus Optical Co Ltd Cover type endoscope
JP2009045134A (en) * 2007-08-15 2009-03-05 Hoya Corp Bend structure of endoscope
JP2009195456A (en) * 2008-02-21 2009-09-03 Hoya Corp Bend structure of endoscope
JP2012040307A (en) * 2010-08-23 2012-03-01 Olympus Corp Strip member and method for fixing outer surface to curved portion by using the strip member
CN105899121A (en) * 2014-08-29 2016-08-24 奥林巴斯株式会社 Insertion device
US10092170B2 (en) 2014-08-29 2018-10-09 Olympus Corporation Insertion apparatus
JP2017217250A (en) * 2016-06-08 2017-12-14 オリンパス株式会社 Curved envelope fixing structure and endoscope

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