JPS6146923A - Flexible tube for endoscope - Google Patents
Flexible tube for endoscopeInfo
- Publication number
- JPS6146923A JPS6146923A JP59167981A JP16798184A JPS6146923A JP S6146923 A JPS6146923 A JP S6146923A JP 59167981 A JP59167981 A JP 59167981A JP 16798184 A JP16798184 A JP 16798184A JP S6146923 A JPS6146923 A JP S6146923A
- Authority
- JP
- Japan
- Prior art keywords
- flexible tube
- adhesive agent
- braid
- flex
- 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
Links
Landscapes
- Instruments For Viewing The Inside Of Hollow Bodies (AREA)
- Endoscopes (AREA)
Abstract
Description
【発明の詳細な説明】
〔技術分野〕
この発明は医療および工業上用いられる内視鏡用可撓管
に関する。DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a flexible tube for an endoscope used medically and industrially.
」
回したフレックスと、このフレックスの外周に被嵌した
ブレードと、このブレードの外周に被覆した樹脂製の外
皮とからなり、かつ上記ブレードと外皮との間には接着
剤を塗布介在させるとともにブレードの網目を通して接
着剤？侵入させて７レツクスとも接着しである。つまり
、上記三者が接着剤によって一体に結合させられている
。It consists of a turned flex, a blade fitted around the outer periphery of the flex, and a resin outer skin coated on the outer periphery of the blade, and an adhesive is applied between the blade and the outer skin, and the blade is Glue through the mesh? I let it invade and glued all 7 rexes together. In other words, the above three components are integrally bonded together using an adhesive.
しかし、内視鏡用可撓管は非常に頻繁に曲げが繰り返え
されるので、ブレードと外皮が剥れてしまうことがあっ
た。このようにブレードと外皮が剥れてしまうと、しわ
が生じたり−ねじりに対して十分力が伝わらなかったり
する不都合が生ずる。However, since the flexible tube for an endoscope is repeatedly bent very frequently, the blade and the outer skin may peel off. If the blade and the outer skin peel off in this way, there will be problems such as wrinkles and insufficient transmission of force against twisting.
この発明は上記事情ｒｃｙＩＩ目してなされたもので、
その目的とするところは屈曲させても外皮にしわができ
ず、かつ湾曲柔軟性を損わず曲げ、″Ｌ、”（４ｉｉｔ
Ａｆ！ｔ″）帽゛Ｐ’３ｉ鮎！！’１７ｖｆｆｌ＊する
ことにある。This invention was made in view of the above circumstances,
The purpose of this is to bend the outer skin without wrinkles even when it is bent, and to bend it without losing its flexibility.
Af! t'') Hat゛P'3i Ayu!!'17vffl*.
この発明は、ブレードと外皮との間の接着剤にトルエン
ジインシフネートを七ノ１−とするポリニスデル系ウレ
タンの腰着剤を用いた内視鏡用可撓管である。This invention is a flexible tube for an endoscope using a polynisder-based urethane adhesive containing toluene diinsifinate as the adhesive between the blade and the outer skin.
〔実施例ｊ
以下、この発明の一実施例を図面にもとづいて説明する
。[Embodiment j] Hereinafter, one embodiment of the present invention will be described based on the drawings.
第１図は医療用の内視鏡ｌ？示すものである。Figure 1 shows a medical endoscope. It shows.
この内視鏡ｌは操作部２と体腔内に挿入すべき挿入部３
とライトガイドコード４とから構成されている。上記挿
入部３は後述する可撓管５の先端に湾曲管６を介して先
端構成部材γを連結してなり、上記湾曲管６は操作部２
の操作ノブを操作することにより操作ワイヤ８が押し引
きされ湾曲させられ先端構成部材７の向きを変更できる
ようになっている。また、操作部２には汲訳部９の他、
図示しない送気送水切換え釦、吸引操作釦および鉗子挿
入口部などが設けられている。また、上記内視鏡１内圧
はそれぞれ図示しないイメージガイド、ライトガイド、
送気送水チューブ、′Ｍ子チャンネルなどの内蔵物が挿
入されている。This endoscope l includes an operating section 2 and an insertion section 3 to be inserted into the body cavity.
and a light guide cord 4. The insertion section 3 is formed by connecting a distal end component γ to the distal end of a flexible tube 5, which will be described later, via a curved tube 6.
By operating the operating knob, the operating wire 8 is pushed and pulled to curve it so that the direction of the tip component 7 can be changed. In addition to the translation section 9, the operation section 2 also includes a translation section 9.
An air/water supply switching button, a suction operation button, a forceps insertion port, etc. (not shown) are provided. In addition, the internal pressure of the endoscope 1 is determined by an image guide, a light guide (not shown),
Built-in items such as air and water tubes and 'M child channels are inserted.
一万、上記挿入部３＆Ｃおける可撓管５は第２図で示す
ように溝底されている。すなわち、帯状の金属板を螺旋
状九巻回した潰れ防止用のフレックス１４と、このフレ
ックス１４の外周側に被覆した管状のブレード１５と、
このブレード１５の外１ｉ！（被覆した樹脂製チューブ
からなる外皮１６と？有している。上記ブレード１５は
繊維状材としてのたとえばＳＵＳ、ＰＢなどからなる金
属ワイヤ？編成して管状に形改してなり、これＫより可
撓ＩＦ５の捩れ？防止するようになっている。また可撓
’１５の両端にはリング状の中間口金１０と後部口金１
１とが７レツクス１４およびブレード１５に半田付げす
ることにより取付けられている。The flexible tube 5 in the insertion portion 3&C has a grooved bottom as shown in FIG. That is, a crush-preventing flex 14 formed by nine spiral turns of a band-shaped metal plate, a tubular blade 15 coated on the outer circumferential side of this flex 14,
Outside 1i of this blade 15! (It has an outer skin 16 made of a coated resin tube.The blade 15 is formed by knitting a metal wire made of a fibrous material such as SUS or PB and reshaping it into a tubular shape. It is designed to prevent twisting of the flexible IF 5.Furthermore, a ring-shaped intermediate cap 10 and a rear cap 1 are provided at both ends of the flexible IF 5.
1 is attached to the 7 rex 14 and blade 15 by soldering.
号
さら（、上記フレックス１４の板材の外局面には離形剤
１７が付着させられている。そして、このフレックス１
４の外ＷＲＫブレード１５が被せられている。従って、
上記離形剤１７はフレックス１４とブレード１５との間
に介在することに成ろう
また、ブレード１５と外皮１６はトルエンンイソンアネ
ートＳ’七／マーとするポリニスチル系ウレタンの接着
剤１８で一体的ｒｃ固溜されている。A release agent 17 is attached to the outer surface of the plate material of the flex 14.
The outer WRK blade 15 of No. 4 is covered. Therefore,
The mold release agent 17 will be interposed between the flex 14 and the blade 15, and the blade 15 and the outer skin 16 are bonded together with an adhesive 18 of polynistyl urethane containing toluene ionison anate S'7/mer. Target RC is accumulated.
以上の構成の内視鏡用可撓管の製造方法について以下に
述べる。A method for manufacturing the flexible tube for an endoscope having the above configuration will be described below.
まず、フレックス１４の内側に合成ゴム例えばンリコン
ゴムでできた中実の芯チユーブな通す。この芯チユーブ
はフレックス１４等が作業中につぶれないようにするた
め及びフレックス内面に接着剤、外皮成形材の侵入？防
止するためで、フレックス１４の内径とほぼ等しい外径
ン有する。First, a solid core tube made of synthetic rubber, such as lincon rubber, is passed through the inside of the flex 14. This core tube is used to prevent the Flex 14 etc. from being crushed during work, and to prevent adhesive and outer skin molding material from entering the inside of the Flex. It has an outer diameter approximately equal to the inner diameter of the flex 14.
芯チューブシフレックス１４に通すには、その弾性を石
川し、芯チユーブの両端？引張ることにより径？小さく
しておいて、フレックス１４を通す。To pass it through the core tube Siflex 14, remove its elasticity and insert it at both ends of the core tube. Diameter by pulling? Keep it small and pass flex 14 through it.
次に、この芯チユーブに取付けられたフレックス１４′
ｌＸ−離形剤１７が満たされた槽中にディップする。Next, the flex 14' attached to this core tube
Dip into a bath filled with lX-mold release agent 17.
その後フレックス１４？デイツプ槽より引き上げ、溶剤
であるフレオンケ蒸発させ乾燥する。Then Flex 14? It is taken out of the dip tank and the solvent Freonke is evaporated and dried.
７し′ツクス１４の離形剤１７が十分に乾燥した後、そ
の外周にブレード１５を装着するうブレード１５の装着
は、上記芯チユーブに装肩されたフレックス１４に直接
金属ワイヤーケ編み込んで行く。After the mold release agent 17 of the flexure 14 has sufficiently dried, the blade 15 is attached to its outer periphery.The blade 15 is attached by directly weaving a metal wire cable into the flex 14 shouldered on the core tube.
ブレード１５が編み込まれたもの？、接着剤１８が満た
された容器中に通すと同時にこの容器の出口でブレード
１５の外径とほぼ等しい内径？有する孔中な通し余分な
接着剤１８？かき落と丁。これによって、接層剤１８は
、７’Ｌ／−ド１５の網目中に行きわたり、しかも余計
に付着することなく均一に塗布される。The one with braid 15 woven into it? , an inner diameter approximately equal to the outer diameter of the blade 15 at the outlet of this container at the same time as it passes into a container filled with adhesive 18? Do you have excess glue 18 through the hole? Scraping and cutting. As a result, the adhesive 18 is spread throughout the mesh of the 7'L/- dot 15 and is evenly applied without any unnecessary adhesion.
この接着剤１８はその溶剤である酢酸エチルを蒸発させ
るために９０゛Ｃの雰囲気中［５分おかれ、その後、５
０′０の雰囲気中に一昼夜おかれる。これは、自然乾燥
でも良（、高温で数分乾燥の後次の工程に移行しても良
い。This adhesive 18 was placed in an atmosphere of 90°C for 5 minutes to evaporate its solvent, ethyl acetate;
It is kept in an atmosphere of 0'0 all day and night. This can be done by natural drying (or you can move on to the next step after drying at a high temperature for a few minutes).
接着剤五８が乾燥した後、ブレード１５の外側に外皮１
６が被覆される。これは、外皮となるウレタン樹脂その
他、塩化ビニール、ナイロン、ポリニスデル、デフジン
等の合成樹脂？溶かした押出機の中？上記ブレード１５
を通じ、ブレード１５の周囲に溶けたウレタン樹脂等を
均一の厚さに押し出し、付着せしめ、直後忙冷却するこ
とにより行なう。これによって、押し出されたウレタン
樹脂吟は接着剤１８を溶かし。After the adhesive 58 dries, apply the outer skin 1 to the outside of the blade 15.
6 is coated. Is this the urethane resin that makes up the outer skin, as well as synthetic resins such as vinyl chloride, nylon, polynisdel, and defugin? Inside the melted extruder? Said blade 15
This is done by extruding melted urethane resin or the like around the blade 15 to a uniform thickness, causing it to adhere, and immediately cooling it down. As a result, the extruded urethane resin melts the adhesive 18.
押し出し圧力によって接肩剤１８？ブレード１５の網目
中九行きわたらせるととも釦その接着剤国
１８と強髄に接合し、その結果、ブレード１５と外皮１
６は接着剤１８を介して確実に結合される。Shoulder agent 18 due to extrusion pressure? As the mesh of the blade 15 spreads through the middle nine, the button is bonded to the glue country 18 and the cauline, so that the blade 15 and the outer skin 1
6 are securely connected via adhesive 18.
しかして、この英施例の内視鏡用可撓管は。However, the flexible tube for an endoscope in this English example.
トルエンジイソシ７ネートケ七ノフーとするポリエステ
ル系ウレタンの硬着剤を使用したので。I used a polyester-based urethane adhesive made of toluene diisocyanate.
可撓管の曲げに対してブレードと外皮が剥離することは
なく耐久性が高い。１８０″剥離度試云
験では１５０〜２００１／、の強度ケ＄し、従来のもの
の約３倍の強さが得られた。また、上記可撓管６？湾曲
させたとき、湾曲内側ではフレックス１４が縮み、その
ピッチが小さくなる一刀、湾曲外側ではフレックス１４
が伸びそのピッチは大きくなるが、ブレード１５は離形
剤１７の作用により接層されず単独に動き、無理な力を
受けない。したがって、篩曲内側ではブレード１５の余
った長さがその周辺で吸収され、盛り上ることがなく、
このため外皮１６にはしわの発生が少ない。また、ｐｉ
Ｉ曲外側ではブレード１５Ｖ’Ｃ抑止されることなくフ
レックス１４が伸び自由に大きく円滑に伸びる。The blade and the outer skin do not separate when the flexible tube is bent, resulting in high durability. In the 180" peel test, the strength was 150~2001/, which is about three times stronger than the conventional one. Also, when the flexible tube 6? is bent, the inner side of the curve is flexed. 14 shrinks and its pitch becomes smaller, flex 14 on the outside of the curve.
Although the blade 15 is elongated and its pitch becomes larger, the blade 15 is not brought into contact with the mold release agent 17 and moves independently, so that it is not subjected to excessive force. Therefore, on the inside of the phloem curve, the excess length of the blade 15 is absorbed around it, and it does not swell up.
Therefore, the outer skin 16 has fewer wrinkles. Also, pi
On the outside of the I-curve, the flex 14 extends freely and smoothly without being inhibited by the blade 15V'C.
以上説明したように本発明によれば、曲げ罠。 As explained above, according to the present invention, there is a bending trap.
対して高い耐久性が得られるとともに可撓管を円、ｉｌ
Ｉさせた場合、その湾曲内側におい℃外皮にしわが寄ら
ず挿入性？阻害しないとともに亀裂も生じるおそれがな
い内視鏡用可撓管ケ安価に提供することができろ。In addition to providing high durability against
Is it possible to insert it without wrinkles on the outer skin on the inside of the curve? It would be possible to provide a flexible tube for an endoscope at a low cost that does not cause obstruction and does not cause cracks.
第１図は本発明の一実株例ケ示す内視鏡の平面図、第２
図は同じ（その内視鏡にお（プろ可撓管の部分断回図、
第３図は町棉管の要部のみを示す断面図である＠
５・・・ＴｆＵ撓ｆ、１４・・・フレックス、１５・・
・ブレード、１７・・・離形剤
第１図
第２図
第３ ＦｊＪFIG. 1 is a plan view of an endoscope showing an example of the present invention, and FIG.
The diagrams are the same (partially cutaway diagram of the flexible tube on the endoscope).
Fig. 3 is a cross-sectional view showing only the main parts of the town cotton pipe.
・Blade, 17...Mold release agent Figure 1 Figure 2 Figure 3 FjJ
Claims (1)
剤の被覆されたフレックスの外周にかぶせられたブレー
ドと、 上記ブレードの表面に塗布されたトルエンジイソシアネ
ートをモノマーとするポリエステル系ウレタンの接着剤
と、 上記接着剤が塗布されたブレード外周に被覆された合成
樹脂の外皮と、 を有することを特徴とする内視鏡用可撓管。[Scope of Claims] A flex formed by spirally winding a strip plate; a release agent applied to the surface of the flex; a blade placed over the outer periphery of the flex coated with the release agent; An endoscope comprising: a polyester urethane adhesive containing toluene diisocyanate as a monomer applied to the surface of the blade; and a synthetic resin outer skin covering the outer periphery of the blade to which the adhesive is applied. flexible tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59167981A JPS6146923A (en) | 1984-08-11 | 1984-08-11 | Flexible tube for endoscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59167981A JPS6146923A (en) | 1984-08-11 | 1984-08-11 | Flexible tube for endoscope |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6146923A true JPS6146923A (en) | 1986-03-07 |
Family
ID=15859595
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59167981A Pending JPS6146923A (en) | 1984-08-11 | 1984-08-11 | Flexible tube for endoscope |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6146923A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2100548A1 (en) | 2008-03-12 | 2009-09-16 | FUJIFILM Corporation | Flexible tube for endoscope and method of manufacturing the same |
| EP1961368A3 (en) * | 2007-02-26 | 2010-07-28 | Machida Endoscope Co., Ltd | Wire member for controlling a flexible endoscope and method for manufacturing the same |
| JP2012183232A (en) * | 2011-03-07 | 2012-09-27 | Fujifilm Corp | Flexible tube for endoscope, and method for manufacturing the same |
| JP2012217811A (en) * | 2011-04-14 | 2012-11-12 | Fujifilm Corp | Method of manufacturing endoscope |
| US8696551B2 (en) | 2007-02-26 | 2014-04-15 | Machida Endoscope Co., Ltd. | Flexible endoscope suitable for MRI |
| EP3000834A1 (en) | 2014-09-29 | 2016-03-30 | Fujifilm Corporation | Flexible tube for an endoscope, adhesive for an endoscope, endoscope-type medical device, as well as method of producing a flexible tube for an endoscope and method of producing an endoscope-type medical device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59186537A (en) * | 1983-04-06 | 1984-10-23 | オリンパス光学工業株式会社 | Flexible tube of endoscope |
| JPS60230614A (en) * | 1984-04-30 | 1985-11-16 | Olympus Optical Co Ltd | Production of flexible pipe for endoscope |
-
1984
- 1984-08-11 JP JP59167981A patent/JPS6146923A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59186537A (en) * | 1983-04-06 | 1984-10-23 | オリンパス光学工業株式会社 | Flexible tube of endoscope |
| JPS60230614A (en) * | 1984-04-30 | 1985-11-16 | Olympus Optical Co Ltd | Production of flexible pipe for endoscope |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1961368A3 (en) * | 2007-02-26 | 2010-07-28 | Machida Endoscope Co., Ltd | Wire member for controlling a flexible endoscope and method for manufacturing the same |
| US8696551B2 (en) | 2007-02-26 | 2014-04-15 | Machida Endoscope Co., Ltd. | Flexible endoscope suitable for MRI |
| EP2100548A1 (en) | 2008-03-12 | 2009-09-16 | FUJIFILM Corporation | Flexible tube for endoscope and method of manufacturing the same |
| US8257249B2 (en) | 2008-03-12 | 2012-09-04 | Fujifilm Corporation | Flexible tube for endoscope and method of manufacturing the same |
| JP2012183232A (en) * | 2011-03-07 | 2012-09-27 | Fujifilm Corp | Flexible tube for endoscope, and method for manufacturing the same |
| JP2012217811A (en) * | 2011-04-14 | 2012-11-12 | Fujifilm Corp | Method of manufacturing endoscope |
| EP3000834A1 (en) | 2014-09-29 | 2016-03-30 | Fujifilm Corporation | Flexible tube for an endoscope, adhesive for an endoscope, endoscope-type medical device, as well as method of producing a flexible tube for an endoscope and method of producing an endoscope-type medical device |
| US10478045B2 (en) | 2014-09-29 | 2019-11-19 | Fujifilm Corporation | Flexible tube for an endoscope, adhesive for an endoscope, endoscope-type medical device, as well as method of producing a flexible tube for an endoscope and method of producing an endoscope-type medical device |
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