JPH0337032A - Flexible tube for endoscope - Google Patents
Flexible tube for endoscopeInfo
- Publication number
- JPH0337032A JPH0337032A JP1173551A JP17355189A JPH0337032A JP H0337032 A JPH0337032 A JP H0337032A JP 1173551 A JP1173551 A JP 1173551A JP 17355189 A JP17355189 A JP 17355189A JP H0337032 A JPH0337032 A JP H0337032A
- Authority
- JP
- Japan
- Prior art keywords
- tube
- base
- outer periphery
- end section
- cap
- 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
- 238000001839 endoscopy Methods 0.000 claims 1
- 239000000853 adhesive Substances 0.000 abstract description 6
- 230000001070 adhesive effect Effects 0.000 abstract description 6
- 239000011347 resin Substances 0.000 abstract description 3
- 229920005989 resin Polymers 0.000 abstract description 3
- 238000004804 winding Methods 0.000 abstract description 3
- 230000002093 peripheral effect Effects 0.000 abstract description 2
- 230000013011 mating Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 6
- 238000005476 soldering Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
Landscapes
- Instruments For Viewing The Inside Of Hollow Bodies (AREA)
- Endoscopes (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は帯状板よりなる螺旋管に外皮チューブを被覆し
てなりその端部に口金を接続固定するようにした内視鏡
用可撓管に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a flexible tube for an endoscope, which is a spiral tube made of a band-shaped plate and covered with an outer skin tube, and a cap is connected and fixed to the end of the spiral tube. Regarding.
［従来の技術］
従来、内視鏡の操作部と光源装置側を接続する部分の可
撓管は、第６図で示すように金属製帯板よりなる螺旋管
１に、樹脂材からなる外皮チューブ２を被覆してなり、
その両端には口金３が固定されている。この場合、螺旋
管１と口金３との固定には、半田付けや接着が用いられ
ている。すなわち、口金３の接続用筒部４を螺旋管１の
端部に被嵌してこの部分を半田５でろう付けする。さら
に、口金３の接続用筒部４の外周には係止用突条部６を
形成してなり、この係止用突条部６を覆うように外皮チ
ューブ２の端部を被嵌するとともに、その外皮チューブ
２の端部外周を糸７で締結するようになっている。[Prior Art] Conventionally, the flexible tube that connects the operating section of an endoscope and the light source device side is a helical tube 1 made of a metal band plate and an outer skin made of a resin material, as shown in Fig. 6. The tube 2 is covered with
A cap 3 is fixed to both ends of the cap. In this case, soldering or adhesion is used to fix the spiral tube 1 and the cap 3. That is, the connecting cylinder part 4 of the cap 3 is fitted onto the end of the spiral tube 1, and this part is brazed with solder 5. Further, a locking protrusion 6 is formed on the outer periphery of the connection cylinder 4 of the cap 3, and the end of the outer skin tube 2 is fitted so as to cover the locking protrusion 6. The outer periphery of the end of the outer skin tube 2 is fastened with a thread 7.
［発明が解決しようとする課題］
しかしながら、従来の構成において、螺旋管１と口金３
を半田付けにより固定するものでは、その半田付は部分
を事前に洗浄する必要がある。[Problems to be Solved by the Invention] However, in the conventional configuration, the spiral tube 1 and the cap 3
If the parts are fixed by soldering, it is necessary to clean the parts before soldering.
また、半田付は後には、フラックスを落とすための洗浄
が必要である。Also, cleaning is required to remove flux after soldering.
また、半田付けの代わりに接着によるものでは、事前の
洗浄が必要であるとともに、接着作業後、その接着材が
と硬化するまで長い時間がかかり、その間、取扱いに注
意を要するものであった。Furthermore, when adhesion is used instead of soldering, cleaning is required beforehand, and it takes a long time for the adhesive to harden after the adhesion process, and care must be taken during this time.
このように、従来の接続固定方式では、その螺旋管１と
口金３との固定に時間がかかり、さらに。As described above, in the conventional connection and fixing method, it takes time to fix the spiral tube 1 and the cap 3.
接続作業工程が複雑で手間がかかるものとなり、コスト
アップの原因ともなっていた。The connection work process became complicated and time-consuming, which led to an increase in costs.
本発明は上記課題に着目してなされたもので、その目的
とするところは、内視鏡に用いられる可撓管において、
特に、螺旋管への口金の固定方法の改善により、工程を
簡略化し、その手間がかからず、作業時間を短縮して、
コストダウンを図り得る内視鏡用６Ｉ撓管を提供するこ
とにある。The present invention has been made in view of the above-mentioned problems, and its purpose is to provide flexible tubes for use in endoscopes.
In particular, by improving the method of fixing the cap to the spiral tube, the process can be simplified, requiring less effort, and reducing work time.
An object of the present invention is to provide a 6I flexible tube for an endoscope that can reduce costs.
［課題を解決する手段および作用］
上記課題を解決するために本発明は帯状板よりなる螺旋
管に外皮チューブを被覆してなる内視鏡用可撓管におい
て、上記螺旋管の端部に接続する筒状の口金の側壁に、
螺旋管の帯板が通る大きさの孔を貫通して設け、その孔
を通じて上記螺旋管の端部における帯状板を口金の内側
から外側へ通し、その螺旋管の端部を上記口金の外周に
巻き付けて固定したものである。[Means for Solving the Problems and Effects] In order to solve the above problems, the present invention provides a flexible tube for an endoscope in which a helical tube made of a strip plate is covered with an outer skin tube, which is connected to an end of the helical tube. On the side wall of the cylindrical cap,
A hole large enough for the band plate of the spiral tube to pass through is provided through the hole, the band plate at the end of the spiral tube is passed from the inside to the outside of the cap through the hole, and the end of the spiral tube is attached to the outer periphery of the cap. It is wrapped and fixed.
口金の側壁の孔より螺旋管の端部における帯状板を、そ
の口金の内側から外側に引き出し、口金の外側に巻き付
けて固定したから、螺旋管への口金の固定が簡単で、そ
の組立て作業時間を短縮できる。The strip plate at the end of the spiral tube is pulled out from the inside of the cap to the outside through the hole in the side wall of the cap, and is wrapped and fixed around the outside of the cap, making it easy to fix the cap to the spiral tube and reducing assembly time. can be shortened.
［実施例］
第１図ないし第３図は本発明の第１の実施例を示すもの
である。第１図および第２図は、内視鏡用可撓管１０に
おける螺旋管１１と口金１２の固定部を示している。口
金１２の片側には筒状の接続用端部１３が形成され、接
続用端部１３の側壁には、口金１２の内部と通じる孔１
４が形成さ７れている。可撓管１０における螺旋管１１
の端部は一旦、接続用端部１３の内側に嵌め込まれ、そ
れより端部側の部分を上記孔１４を通じて外側へ導出し
、第１図で示されるようにそのままの螺旋方向に接続用
端部１３の外周に巻き付けである。[Embodiment] FIGS. 1 to 3 show a first embodiment of the present invention. FIGS. 1 and 2 show a fixed portion of a helical tube 11 and a base 12 in a flexible tube 10 for an endoscope. A cylindrical connection end 13 is formed on one side of the cap 12, and a hole 1 communicating with the inside of the cap 12 is formed in the side wall of the connection end 13.
4 is formed and 7 is formed. Spiral tube 11 in flexible tube 10
The end of the connecting end 13 is once fitted inside the connecting end 13, and the end portion thereof is led out through the hole 14, and the connecting end is inserted in the same spiral direction as shown in FIG. It is wrapped around the outer periphery of the section 13.
また、この巻き付は部分よりも口金１２の先端側外周に
はその周方向に沿う突条の係止用突起１５が形成されて
いる。なお、接続用端部１３の内径は上記螺旋管１１の
外径より大きい。In addition, a locking protrusion 15 in the form of a protrusion is formed along the circumferential direction on the outer periphery of the tip end side of the base 12 rather than the winding part. Note that the inner diameter of the connecting end 13 is larger than the outer diameter of the spiral tube 11.
さらに、第２図で示すように螺旋管１１の外周を覆う樹
脂製の外皮チューブ１６はその口金１２の接続用端部１
３の外周に係止用突起１５を越える部分まで達して密に
被嵌されている。そして、係止用突起１５を越えた終端
部はこれに対応する固定部外周１７に接着剤等により固
定されている。Furthermore, as shown in FIG.
It is tightly fitted to the outer periphery of 3, reaching beyond the locking protrusion 15. The terminal end beyond the locking protrusion 15 is fixed to the corresponding outer periphery 17 of the fixing part with an adhesive or the like.
また、このように固定される外皮チューブ１６の終端部
の外周は、その外径より小さい内径をした止めリング１
８（第３図を参照）が嵌め込まれである。この止めリン
グ１８は弾性金属線等の材質によりコイル状に形成され
ている。Further, the outer periphery of the terminal end of the outer skin tube 16 fixed in this way is covered with a retaining ring 1 having an inner diameter smaller than the outer diameter.
8 (see Figure 3) is fitted. This retaining ring 18 is formed into a coil shape from a material such as an elastic metal wire.
なお、螺旋管１１の内部にはワイヤ１９が挿通してあり
、このワイヤ１９の一端は、口金１２の端部に形成した
ワイヤ取付は用穴２０に１８０”折り曲げて挿入固定し
である。このワイヤ１９は可撓管１０が引っ張られたと
きに全体が伸びることを防止するものである。Note that a wire 19 is inserted into the inside of the spiral tube 11, and one end of this wire 19 is bent 180'' into a wire attachment hole 20 formed at the end of the base 12 and inserted and fixed. The wire 19 prevents the flexible tube 10 from stretching as a whole when it is pulled.
しかして、上記螺旋管１１を口金１２の接続用端部１３
に取付は場合、第１図で示すように、孔１４を通じて内
側から外側へ導出するとともに、その径が拡がったこと
による弾性力と口金１２との摩擦力によりその接続用端
部１３にしっかり係着固定される。Thus, the spiral tube 11 is connected to the connecting end 13 of the base 12.
1, it is led out from the inside to the outside through the hole 14, and is firmly connected to the connecting end 13 by the elastic force due to its enlarged diameter and the frictional force with the cap 12. It is fixed in place.
この後、外皮チューブ１６の端部を口金１２の接続用端
部１３の外周に係止用突起１５を越える部分まで嵌合す
る。このとき、螺旋管１１の巻付は端部は完全に覆われ
る。そして、固定部外周１７に接着剤等により固定する
。また、このように固定される外皮チューブ１６の終端
部の外周において、止めリング１８を弾性的に拡げて固
定部外周１７に対応する周面上に移動させ、その外皮チ
ューブ１６を押し潰すようにして固定する。Thereafter, the end of the outer skin tube 16 is fitted to the outer periphery of the connection end 13 of the base 12 up to a portion beyond the locking protrusion 15 . At this time, the ends of the spiral tube 11 are completely covered. Then, it is fixed to the outer periphery 17 of the fixing part with an adhesive or the like. Further, on the outer periphery of the terminal end of the outer skin tube 16 fixed in this way, the retaining ring 18 is elastically expanded and moved onto the peripheral surface corresponding to the fixed part outer periphery 17, so that the outer skin tube 16 is crushed. and fix it.
このような構成とすれば、螺旋管１１を口金１２に巻き
付ける作業は簡単である。また、止めリング１８により
外皮チューブ１６と口金１２は接着硬化するまで固定し
ておけるので、その組み立て工程が簡単になるとともに
、その時間短縮が図れ、コストダウンになる。With such a configuration, the work of winding the spiral tube 11 around the base 12 is easy. Furthermore, since the retaining ring 18 allows the outer skin tube 16 and the cap 12 to be fixed until the adhesive hardens, the assembly process is simplified, and the time and cost can be reduced.
なお、上記実施例ではワイヤ１つにより全体の伸び止め
防止作用があるので、外皮チューブ１６が軟らかく伸び
やすい樹脂を使用したものであっても、可撓管１０全体
をしなやかにでき、これを用いる内視鏡の操作がしやす
くなる。In addition, in the above embodiment, since one wire has the effect of preventing the whole from stretching, even if the outer skin tube 16 is made of a soft and easily stretchable resin, the entire flexible tube 10 can be made flexible. It becomes easier to operate the endoscope.
第４図および第５図は本発明の第２の実施例を示すもの
である。上記第１の実施例のものと累なる点を中心に述
べる。4 and 5 show a second embodiment of the present invention. The following description will focus on the points that are similar to those of the first embodiment.
すなわち、口金１２における接続用端部１３の外周に、
上記孔１４とは異なる第２の孔２１を設け、この第２の
孔２１を通じて上記ワイヤ１つを先端側の螺旋管１１と
外皮チューブ１６の間に挿通し、第２の孔２１から口金
１゛２の内側に導き入れるようにしている。That is, on the outer periphery of the connection end 13 of the base 12,
A second hole 21 different from the hole 14 is provided, one wire is inserted between the helical tube 11 on the distal end side and the outer skin tube 16 through the second hole 21, and the wire is inserted into the base 1 from the second hole 21. I try to bring it inside ``2''.
また、ワイヤ１つの先端は口金１２の端部に形成した切
欠き部２２に直角に折り曲げて差し込まれている。第５
図で示すように、この切欠き部２２には、めねじ部２３
を形成してあり、すり割り付き平先止めねじ２４をねじ
込み、ワイヤ１９を切欠き部２２の底部２２ａと平先止
めねじ２４の先端とで挾み込んで固定するようにしてい
る。Further, the tip of one wire is bent at a right angle and inserted into a notch 22 formed at the end of the base 12. Fifth
As shown in the figure, this notch 22 has a female threaded portion 23.
A slotted flat end set screw 24 is screwed in, and the wire 19 is inserted and fixed between the bottom 22a of the notch 22 and the tip of the flat end set screw 24.
外皮チューブ１６は、上記止めリング１８の代わりにナ
イロンテグス、絹糸等の糸２５で縛っである。The outer skin tube 16 is tied with thread 25 such as nylon thread or silk thread instead of the above-mentioned retaining ring 18.
この実施例の構成にあっては、螺旋管１１の内部にワイ
ヤ１つが入り込まないので、そのワイヤ１９が暴れて内
蔵物を傷付けるようなことなく、内視鏡の耐久性が上が
る。また、ワイヤ１９の固定が確実でかつ安定する。In the configuration of this embodiment, since a single wire does not enter the inside of the helical tube 11, the wire 19 does not become loose and damage internal components, and the durability of the endoscope is increased. Furthermore, the wire 19 is securely and stably fixed.
なお、本発明は上記実施例のものに限定されるものでは
ない。例えば孔１４の形状は丸形に限らず、四角形等で
あってもよい。また、螺旋管１１と口金１２は、その孔
１４以外の部分で接着剤を塗り、口金１２と外皮チュー
ブ１６との接着と同時に硬化させてもよい。Note that the present invention is not limited to the above embodiments. For example, the shape of the hole 14 is not limited to a round shape, but may be a square shape or the like. Further, the helical tube 11 and the cap 12 may be coated with an adhesive on the parts other than the holes 14, and cured at the same time as the cap 12 and the outer skin tube 16 are bonded together.
［発明の効果］
以上説明したように本発明によれば、螺旋管の口金への
固定が簡単になり、組立時間が短縮され、コストダウン
が図れる。[Effects of the Invention] As described above, according to the present invention, it is possible to easily fix the helical tube to the base, shorten the assembly time, and reduce costs.
第１図ないし第３図は本発明の第１の実施例を示し、第
１図は螺旋管と口金との固定部の側面図、第２図は可撓
管と口金との固定部の側断面間第３図は止めリングの斜
視図である。第４図および第５図は本発明の第２の実施
例を示し、第４図は可撓管と口金との固定部の側断面図
、第５図は口金の斜視図である。第６図は従来の可撓管
と口金との固定部の側断面図である。
１０・・・可撓管、１１・・・螺旋管、１２・・・口金
、１３・・・接続用端部、１４・・・孔、１６・・・外
皮チューブ。1 to 3 show a first embodiment of the present invention, FIG. 1 is a side view of the fixed part between the helical tube and the cap, and FIG. 2 is a side view of the fixed part between the flexible tube and the cap. FIG. 3 is a perspective view of the retaining ring. 4 and 5 show a second embodiment of the present invention, in which FIG. 4 is a side sectional view of a fixing portion between the flexible tube and the cap, and FIG. 5 is a perspective view of the cap. FIG. 6 is a side sectional view of a conventional fixing portion between a flexible tube and a cap. DESCRIPTION OF SYMBOLS 10... Flexible tube, 11... Spiral tube, 12... Cap, 13... Connection end, 14... Hole, 16... Outer tube.
Claims (1)
視鏡用可撓管において、上記螺旋管の端部に接続する筒
状の口金の側壁に、螺旋管の帯板が通る大きさの孔を貫
通して設け、その孔を通じて上記螺旋管の端部における
帯状板を口金の内側から外側へ通し、その螺旋管の端部
を上記口金の外周に巻き付けて固定したことを特徴とす
る内視鏡用可撓管。In a flexible tube for an endoscope, which is formed by covering a helical tube made of a band-shaped plate with an outer skin tube, the side wall of the cylindrical cap connected to the end of the helical tube has a size that allows the band plate of the helical tube to pass through. A hole is provided through the hole, a strip plate at the end of the spiral tube is passed from the inside to the outside of the cap through the hole, and the end of the spiral tube is fixed by being wrapped around the outer periphery of the cap. Flexible tube for endoscopy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1173551A JP2544809B2 (en) | 1989-07-05 | 1989-07-05 | Flexible tube for endoscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1173551A JP2544809B2 (en) | 1989-07-05 | 1989-07-05 | Flexible tube for endoscope |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0337032A true JPH0337032A (en) | 1991-02-18 |
| JP2544809B2 JP2544809B2 (en) | 1996-10-16 |
Family
ID=15962635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1173551A Expired - Lifetime JP2544809B2 (en) | 1989-07-05 | 1989-07-05 | Flexible tube for endoscope |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2544809B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19916047B4 (en) * | 1998-04-10 | 2008-02-28 | Pentax Corp. | Construction for an endoscopic treatment instrument for connecting a flexible sheath to a connecting element |
| WO2025154747A1 (en) * | 2024-01-17 | 2025-07-24 | オリンパスメディカルシステムズ株式会社 | Flexible tube for insertion apparatus, insertion apparatus, and method for manufacturing flexible tube for insertion apparatus |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5596469B2 (en) * | 2010-08-23 | 2014-09-24 | オリンパス株式会社 | A band-shaped member and a fixing method for fixing the outer skin to the curved portion by the band-shaped member |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56118601U (en) * | 1980-02-09 | 1981-09-10 | ||
| JPS63122418A (en) * | 1986-11-13 | 1988-05-26 | オリンパス光学工業株式会社 | Endoscope |
-
1989
- 1989-07-05 JP JP1173551A patent/JP2544809B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56118601U (en) * | 1980-02-09 | 1981-09-10 | ||
| JPS63122418A (en) * | 1986-11-13 | 1988-05-26 | オリンパス光学工業株式会社 | Endoscope |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19916047B4 (en) * | 1998-04-10 | 2008-02-28 | Pentax Corp. | Construction for an endoscopic treatment instrument for connecting a flexible sheath to a connecting element |
| WO2025154747A1 (en) * | 2024-01-17 | 2025-07-24 | オリンパスメディカルシステムズ株式会社 | Flexible tube for insertion apparatus, insertion apparatus, and method for manufacturing flexible tube for insertion apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2544809B2 (en) | 1996-10-16 |
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