JPH10276972A - Mouth connecting part of endoscope tube and its production method - Google Patents
Mouth connecting part of endoscope tube and its production methodInfo
- Publication number
- JPH10276972A JPH10276972A JP9087825A JP8782597A JPH10276972A JP H10276972 A JPH10276972 A JP H10276972A JP 9087825 A JP9087825 A JP 9087825A JP 8782597 A JP8782597 A JP 8782597A JP H10276972 A JPH10276972 A JP H10276972A
- Authority
- JP
- Japan
- Prior art keywords
- flexible tube
- base
- tube
- endoscope
- connection pipe
- 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
Landscapes
- Endoscopes (AREA)
- Instruments For Viewing The Inside Of Hollow Bodies (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、内視鏡の処置具
挿通チャンネルに挿脱される可撓性チューブの基端側に
口金が結合された内視鏡用チューブの口金接続部及びそ
の製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a base connecting portion of an endoscope tube in which a base is connected to a base end of a flexible tube which is inserted into and removed from a treatment tool insertion channel of an endoscope, and a manufacturing method thereof. About the method.
【０００２】[0002]
【従来の技術】従来の内視鏡用チューブの口金接続部
は、例えば口金に設けられた硬質接続パイプの表面に凹
凸部を形成し、その外側から可撓性チューブの端部を加
熱収縮させて凹凸部に食い込ませて結合したり（特公平
３−２９４０７号）、硬質接続パイプの表面に可撓性チ
ューブを被嵌し、さらにその外側に金属製の筒状体を被
嵌して、その筒状体をカシメ変形させて可撓性チューブ
を外側から締めつけ固定していた。2. Description of the Related Art Conventionally, a base connecting portion of a tube for an endoscope is formed, for example, by forming an uneven portion on a surface of a hard connecting pipe provided in the base, and heat-shrinking an end of the flexible tube from the outside thereof. (See Japanese Patent Publication No. 3-29407), a flexible tube is fitted on the surface of a hard connection pipe, and a metal tubular body is fitted on the outside of the flexible tube. The tubular body was caulked and deformed, and the flexible tube was tightened and fixed from the outside.
【０００３】[0003]
【発明が解決しようとする課題】しかし、特公平３−２
９４０７号に記載されたもののように、硬質接続パイプ
の表面に凹凸部を形成したとはいえ、可撓性チューブが
外側から機械的に押さえられていない構造では、可撓性
チューブが軸線方向に押し引きされることによって、硬
質接続パイプとの結合部で可撓性チューブが膨らんで結
合力が弱まってしまう。[Problems to be solved by the invention]
As described in Japanese Patent No. 9407, although the unevenness is formed on the surface of the rigid connection pipe, in the structure in which the flexible tube is not mechanically pressed from the outside, the flexible tube does not move in the axial direction. By being pushed and pulled, the flexible tube swells at the joint with the hard connection pipe, and the joining force is weakened.
【０００４】また、結合部の外側から筒状体を被嵌して
カシメ変形させたものは、可撓性チューブが外側から機
械的に押さえられているので結合強度は充分であるが、
チューブの寸法のばらつきに合わせて専用の特殊なカシ
メ機を幾つも準備しておく必要があって生産性が悪いだ
けでなく、カシメ加工によって潰された筒状体の一部分
が鋭く外側に飛び出し、操作者の手に引っかかって危な
いことがある。[0004] In addition, in the case where the cylindrical body is fitted from the outside of the connecting portion and crimped, the connecting strength is sufficient because the flexible tube is mechanically pressed from the outside.
It is necessary to prepare a number of special caulking machines dedicated to the variation in the dimensions of the tube, not only is productivity low, but also a part of the cylindrical body crushed by caulking jumps out sharply, There is a danger of getting caught in the operator's hand.
【０００５】そこで本発明は、可撓性チューブと口金と
を簡単で安全な構造によってしっかりと結合させること
ができる内視鏡用チューブの口金接続部及びその製造方
法を提供することを目的とする。SUMMARY OF THE INVENTION It is an object of the present invention to provide a base connector for an endoscope tube which can securely connect a flexible tube and a base with a simple and safe structure, and a method of manufacturing the same. .
【０００６】[0006]
【課題を解決するための手段】上記の目的を達成するた
め、本発明の内視鏡用チューブの口金接続部は、内視鏡
の処置具挿通チャンネルに挿脱される可撓性チューブの
基端側に口金が結合された内視鏡用チューブの口金接続
部において、上記口金に、上記可撓性チューブの内径よ
り大きい外径を有する硬質接続パイプ部を設けて、その
硬質接続パイプ部を上記可撓性チューブの端部内にきつ
く嵌め込み、上記硬質接続パイプ部が嵌め込まれた部分
の上記可撓性チューブの外周部分に、硬質材料からなる
筒状体を被嵌したことを特徴とする。In order to achieve the above-mentioned object, a base connection portion of an endoscope tube according to the present invention is provided with a flexible tube inserted into and removed from a treatment instrument insertion channel of the endoscope. At the base connection portion of the endoscope tube having the base connected to the base, the base is provided with a hard connection pipe having an outer diameter larger than the inner diameter of the flexible tube, and the hard connection pipe is provided. A tubular body made of a hard material is fitted tightly into the end of the flexible tube, and the outer periphery of the flexible tube at the portion where the hard connection pipe is fitted is fitted.
【０００７】なお、上記筒状体の内径が、上記硬質接続
パイプ部が嵌め込まれた部分の上記可撓性チューブの外
径より小さい径であってもよい。また、上記硬質接続パ
イプ部の少なくとも一部分の断面形状が非円形であって
もよく、上記硬質接続パイプ部の少なくとも一部分の断
面形状が楕円形であってもよい。[0007] The inner diameter of the tubular body may be smaller than the outer diameter of the flexible tube in the portion where the hard connection pipe is fitted. Further, the cross-sectional shape of at least a part of the hard connection pipe may be non-circular, and the cross-section of at least a part of the hard connection pipe may be elliptical.
【０００８】また、本発明の内視鏡用チューブの口金接
続部の製造方法は、内視鏡の処置具挿通チャンネルに挿
脱される可撓性チューブの基端側に口金を結合する内視
鏡用チューブの口金接続部の製造方法において、上記可
撓性チューブの端部に、上記口金に設けられた上記可撓
性チューブの内径より大きい外径を有する硬質接続パイ
プ部を圧入し、上記可撓性チューブの自然状態の外径よ
り大きい内径の硬質材料からなる筒状体を、上記可撓性
チューブ側から上記口金の方に移動させて、上記硬質接
続パイプ部が圧入された部分の上記可撓性チューブの外
周部分に上記筒状体を被嵌したことを特徴とする。Further, according to the method of the present invention for manufacturing a base connection portion of a tube for an endoscope, the base is connected to a base end of a flexible tube inserted into and removed from a treatment instrument insertion channel of the endoscope. In the method of manufacturing a base connection part of a mirror tube, a rigid connection pipe part having an outer diameter larger than the inner diameter of the flexible tube provided in the base is press-fitted into an end of the flexible tube; A cylindrical body made of a hard material having an inner diameter larger than the outer diameter of the flexible tube in a natural state is moved from the flexible tube side toward the base, and the rigid connection pipe portion is press-fitted. The tubular body is fitted on an outer peripheral portion of the flexible tube.
【０００９】なお、上記筒状体の内径が、上記硬質接続
パイプ部が嵌め込まれた部分の上記可撓性チューブの外
径より小さい径であってもよい。[0009] The inner diameter of the tubular body may be smaller than the outer diameter of the flexible tube in the portion where the hard connection pipe is fitted.
【００１０】[0010]
【発明の実施の形態】図面を参照して本発明の実施の形
態を説明する。図１は、本発明の第１の実施の形態の内
視鏡用送吸液チューブを示している。Embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows a liquid supply / suction tube for an endoscope according to a first embodiment of the present invention.
【００１１】この内視鏡用送吸液チューブは、内視鏡の
処置具挿通チャンネル内に挿脱して使用され、体腔内に
薬液等を送り込んだり体腔内に溜まった汚液等を排出す
るのに用いられる。[0011] The liquid supply / suction tube for an endoscope is used by being inserted into and removed from a treatment tool insertion channel of the endoscope, and is used to feed a chemical solution or the like into a body cavity or discharge a contaminated liquid accumulated in the body cavity. Used for
【００１２】図１に示される１は、処置具挿通チャンネ
ルに挿通される可撓性チューブであり、例えばＰＴＦ
Ｅ、ＰＦＡ、ＦＥＰ又はポリオレフィンなどのように柔
軟性のある合成樹脂材料によって形成される。Reference numeral 1 shown in FIG. 1 denotes a flexible tube that is inserted into the treatment instrument insertion channel.
It is formed of a flexible synthetic resin material such as E, PFA, FEP or polyolefin.
【００１３】２は、注射筒を受けるように形成された金
属製の口金であり、いわゆるルアーロックタイプの注射
針口金と同様の形状のものを用いることができる。口金
２には、金属製のパイプからなる硬質接続パイプ３が圧
入固着されている。この硬質接続パイプ３は、例えば口
金２と一体的に製造された注射針を途中で切断して使用
してもよい。Reference numeral 2 denotes a metal base formed to receive the injection cylinder, and may be of the same shape as a so-called luer lock type injection needle base. A hard connection pipe 3 made of a metal pipe is press-fitted and fixed to the base 2. The rigid connection pipe 3 may be used by cutting an injection needle manufactured integrally with the base 2, for example, on the way.
【００１４】硬質接続パイプ３の外径寸法Ｂは、可撓性
チューブ１の内径寸法Ａより大きく形成されている（Ｂ
＞Ａ）。そして、硬質接続パイプ３が可撓性チューブ１
の端部内に可撓性チューブ１を押し広げた状態できつく
嵌入されている。The outer diameter B of the rigid connection pipe 3 is formed larger than the inner diameter A of the flexible tube 1 (B
> A). And the rigid connection pipe 3 is a flexible tube 1
The flexible tube 1 is tightly fitted into the end of the flexible tube 1 in an expanded state.
【００１５】そして、その硬質接続パイプ３が嵌入され
た部分の可撓性チューブ１の端部の外周部分には、金属
製又は硬質のプラスチック製の円筒状部材である接続部
押さえ筒４が被嵌されている。[0015] On the outer peripheral portion of the end portion of the flexible tube 1 where the hard connection pipe 3 is fitted, a connection portion holding cylinder 4 which is a cylindrical member made of metal or hard plastic is covered. It is fitted.
【００１６】この接続部押さえ筒４の内径寸法Ｃは、硬
質接続パイプ３が差し込まれた部分の可撓性チューブ１
の外径寸法Ｄよりも小さく形成されている。その差（Ｄ
−Ｃ）は、可撓性チューブ１の外径寸法が１ｍｍないし
２ｍｍ程度の場合、０．０５ｍｍないし０．３ｍｍ程度
であることが好ましい。The inner diameter dimension C of the connecting part holding cylinder 4 is such that the flexible tube 1 in the portion where the hard connecting pipe 3 is inserted is inserted.
Is formed smaller than the outer diameter dimension D. The difference (D
-C) is preferably about 0.05 mm to 0.3 mm when the outer diameter of the flexible tube 1 is about 1 mm to 2 mm.
【００１７】このような構成により、可撓性チューブ１
の端部は、硬質接続パイプ３と接続部押さえ筒４との間
にきつく締め付けられて圧着固定されている。したがっ
て、可撓性チューブ１と口金２との間に軸線方向に押し
引きする力が加わっても、可撓性チューブ１が膨らんだ
りせず、結合強度が弱まらない。また、結合部の外周面
は滑らかな円形形状なので操作者の手にひっかかるよう
なこともない。With such a configuration, the flexible tube 1
Is tightly clamped between the rigid connection pipe 3 and the connection holding tube 4 to be fixed by crimping. Therefore, even if a force for pushing and pulling in the axial direction is applied between the flexible tube 1 and the base 2, the flexible tube 1 does not expand and the bonding strength is not weakened. Further, since the outer peripheral surface of the connecting portion has a smooth circular shape, it does not catch on the operator's hand.
【００１８】図２、図３及び図４は、上述の第１の実施
の形態の内視鏡用送吸液チューブを製造する製造工程を
順に示している。ここでは先ず、図２に示されるように
口金２に固着された硬質接続パイプ３と可撓性チューブ
１とを同じ軸線上に並べる。FIGS. 2, 3 and 4 sequentially show the steps of manufacturing the endoscope liquid supply / suction tube of the first embodiment. Here, first, as shown in FIG. 2, the rigid connection pipe 3 fixed to the base 2 and the flexible tube 1 are arranged on the same axis.
【００１９】次いで、図３に示されるように、可撓性チ
ューブ１の端部に硬質接続パイプ３を差し込む。する
と、可撓性チューブ１の端部が硬質接続パイプ３によっ
て押し広げられ、硬質接続パイプ３が可撓性チューブ１
の端部内にきつく嵌入された状態になる。Next, as shown in FIG. 3, a rigid connection pipe 3 is inserted into the end of the flexible tube 1. Then, the end of the flexible tube 1 is pushed open by the rigid connection pipe 3, and the rigid connection pipe 3 is
Is tightly fitted into the end of the.
【００２０】この時に硬質接続パイプ３が可撓性チュー
ブ１を傷つけないようにするために、硬質接続パイプ３
の先端の外側稜線部分３ａは、エッジがないようにＲ面
取りされている。At this time, in order to prevent the rigid connection pipe 3 from damaging the flexible tube 1, the rigid connection pipe 3
Is chamfered so that there is no edge.
【００２１】それから図４に示されるように、接続部押
さえ筒４を、可撓性チューブ１の先端側から口金４の方
に移動させて、硬質接続パイプ３と可撓性チューブ１と
の結合部に被せる。Then, as shown in FIG. 4, the connecting part holding cylinder 4 is moved from the distal end side of the flexible tube 1 toward the base 4 to join the rigid connecting pipe 3 and the flexible tube 1 together. Cover the part.
【００２２】この時に接続部押さえ筒４が可撓性チュー
ブ１を傷つけないようにするために、接続部押さえ筒４
の口元の内周側稜線部分４ａは、エッジがないように面
取りされている。At this time, in order to prevent the connection part holding cylinder 4 from damaging the flexible tube 1, the connection part holding cylinder 4
Is chamfered so that there is no edge.
【００２３】このようにして、硬質接続パイプ３と可撓
性チューブ１との結合部に接続部押さえ筒４を被嵌させ
ると、図１に示される組み上がり状態になり、可撓性チ
ューブ１の端部が、硬質接続パイプ３と接続部押さえ筒
４との間にきつく圧着されて固定された状態になる。As described above, when the connecting portion holding cylinder 4 is fitted to the connecting portion between the hard connecting pipe 3 and the flexible tube 1, the assembled state shown in FIG. Is tightly crimped between the rigid connection pipe 3 and the connection holding tube 4 to be fixed.
【００２４】図５は、図１に示されるＪ−Ｊ断面すなわ
ち、可撓性チューブ１内に硬質接続パイプ３が差し込ま
れた部分の断面を示している。このように、硬質接続パ
イプ３の断面形状は円形である。FIG. 5 shows a cross section taken along the line JJ shown in FIG. 1, that is, a cross section of a portion where the hard connection pipe 3 is inserted into the flexible tube 1. Thus, the cross-sectional shape of the hard connection pipe 3 is circular.
【００２５】しかし、可撓性チューブ１は製造上のばら
つき等によって肉厚が多少薄かったり厚かったりする場
合があり、肉厚が薄い場合には、接続部押さえ筒４によ
る締め付け力が弱くなってしまう場合がある。However, the flexible tube 1 may be slightly thinner or thicker due to manufacturing variations or the like. If the thickness is thinner, the tightening force of the connection part holding cylinder 4 is weakened. In some cases.
【００２６】そのような場合には、図６に示される第２
の実施の形態のように、硬質接続パイプ３の断面形状を
楕円形等に形成するとよい。このようにすることによ
り、楕円形の長軸方向において、可撓性チューブ１が接
続部押さえ筒４との間にきつく挟み込まれるので、強い
結合力を得ることができる。In such a case, the second type shown in FIG.
As in the above embodiment, the cross-sectional shape of the hard connection pipe 3 may be formed in an elliptical shape or the like. By doing so, in the major axis direction of the elliptical shape, the flexible tube 1 is tightly sandwiched between the connection portion holding cylinder 4 and a strong coupling force can be obtained.
【００２７】なお、硬質接続パイプ３や接続部押さえ筒
４の肉厚を薄く形成して弾力性を持たせ、結合部におい
て各部品が多少弾性変形をして、部品どうしが均等に圧
着されるようにしてもよい。The rigid connecting pipe 3 and the connecting part holding cylinder 4 are formed to be thin to provide elasticity, and each part is slightly elastically deformed at the joint part, so that the parts are evenly pressed together. You may do so.
【００２８】図７及び図８は、本発明の第３の実施の形
態の内視鏡用送吸液チューブを示しており、円形断面に
形成された硬質接続パイプ３の途中の部分３ａの断面形
状を部分的に変形させたものである。FIGS. 7 and 8 show a liquid supply / suction tube for an endoscope according to a third embodiment of the present invention, in which a cross section of an intermediate portion 3a of a rigid connection pipe 3 formed in a circular cross section is shown. The shape is partially deformed.
【００２９】硬質接続パイプ３の途中の部分３ａのＫ−
Ｋ断面の形状は、図６に示される第２の実施の形態の場
合と同様の楕円形等にしてもよく、図９に示されるよう
に円形断面を一方向から潰した長円形状等に形成しても
よい。The K- of the portion 3a in the middle of the hard connection pipe 3
The shape of the K cross section may be an ellipse or the like similar to the case of the second embodiment shown in FIG. 6, or may be an ellipse or the like obtained by crushing a circular cross section from one direction as shown in FIG. It may be formed.
【００３０】このように形成することにより、硬質接続
パイプ３の途中の部分３ａは、一方向においては図７に
示されるように部分的に径が太くなり、それと垂直の方
向においては、図８に示されるように部分的に径が細く
なる。By forming in this manner, the middle portion 3a of the hard connection pipe 3 has a partially large diameter as shown in FIG. 7 in one direction, and FIG. 8 in a direction perpendicular thereto. As shown in FIG.
【００３１】その結果、図７に示されるように硬質接続
パイプ３の途中の部分３ａが太くなった側では、硬質接
続パイプ３と接続部押さえ筒４との間に可撓性チューブ
１がきつく挟み込まれて抜け止め効果が増大する。As a result, as shown in FIG. 7, the flexible tube 1 is tight between the hard connection pipe 3 and the connection holding tube 4 on the side where the middle portion 3a of the hard connection pipe 3 becomes thicker. It is trapped and the retaining effect increases.
【００３２】また、図８に示されるように硬質接続パイ
プ３の途中の部分３ａが細くなった側では、その部分に
可撓性チューブ１がもぐり込んで、やはり抜け止め効果
が向上する。Further, as shown in FIG. 8, on the side where the middle portion 3a of the hard connection pipe 3 becomes thinner, the flexible tube 1 penetrates into that portion, which also improves the retaining effect.
【００３３】なお、このように硬質接続パイプ３の途中
の部分３ａを所定の量変形加工するには、例えば所定の
外径寸法のドリルなどを硬質接続パイプ３内に通してお
き、硬質接続パイプ３を部分的に外側からバイス等によ
って潰せば、バラツキのない一定の変形加工をすること
ができる。In order to deform the intermediate portion 3a of the rigid connection pipe 3 by a predetermined amount in this manner, for example, a drill having a predetermined outer diameter is passed through the hard connection pipe 3 and the rigid connection pipe 3 is formed. If part 3 is partially crushed from the outside with a vice or the like, constant deformation processing without variation can be performed.
【００３４】なお、本発明は上記実施の形態に限定され
るものではなく、例えば硬質接続パイプ３の途中の部分
３ａの断面形状は、図１０に示されるように、円形断面
の外周面に一つ又は複数の突起３ｂを突設したようなも
のであっても差し支えない。The present invention is not limited to the above-described embodiment. For example, as shown in FIG. One or a plurality of protrusions 3b may be provided.
【００３５】[0035]
【発明の効果】本発明によれば、口金に、可撓性チュー
ブの内径より大きい外径を有する硬質接続パイプ部を設
けて、その硬質接続パイプ部を可撓性チューブの端部内
にきつく嵌め込み、硬質接続パイプ部が嵌め込まれた部
分の可撓性チューブの外周部分にそれより細い内径寸法
の硬質材料からなる筒状体を被嵌することにより、可撓
性チューブと口金とを安全な状態に容易にしっかりと結
合させることができる。According to the present invention, the base is provided with a rigid connection pipe having an outer diameter larger than the inner diameter of the flexible tube, and the rigid connection pipe is tightly fitted into the end of the flexible tube. The flexible tube and the base are placed in a safe state by fitting a cylindrical body made of a hard material having a smaller inner diameter to the outer peripheral portion of the flexible tube where the hard connection pipe portion is fitted. Can be easily and firmly combined.
【図１】本発明の第１の実施の形態の内視鏡用送吸液チ
ューブの口金接続部の側面断面図である。FIG. 1 is a side cross-sectional view of a mouthpiece connection part of an endoscope liquid transfer tube according to a first embodiment of the present invention.
【図２】本発明の第１の実施の形態の内視鏡用送吸液チ
ューブの口金接続部の製造工程を示す側面断面図であ
る。FIG. 2 is a side cross-sectional view showing a manufacturing process of a mouthpiece connection part of the liquid supply and suction tube for an endoscope according to the first embodiment of the present invention.
【図３】本発明の第１の実施の形態の内視鏡用送吸液チ
ューブの口金接続部の製造工程を示す側面断面図であ
る。FIG. 3 is a side cross-sectional view showing a manufacturing process of a mouthpiece connection part of the liquid supply and suction tube for an endoscope according to the first embodiment of the present invention.
【図４】本発明の第１の実施の形態の内視鏡用送吸液チ
ューブの口金接続部の製造工程を示す側面断面図であ
る。FIG. 4 is a side cross-sectional view showing a manufacturing process of a mouthpiece connection part of the liquid supply and suction tube for an endoscope according to the first embodiment of the present invention.
【図５】本発明の第１の実施の形態のＪ−Ｊ断面を示す
正面断面図である。FIG. 5 is a front sectional view showing a JJ section of the first embodiment of the present invention.
【図６】本発明の第２の実施の形態のＪ−Ｊ断面を示す
正面断面図である。FIG. 6 is a front sectional view showing a JJ section of the second embodiment of the present invention.
【図７】本発明の第３の実施の形態の内視鏡用送吸液チ
ューブの口金接続部の側面断面図である。FIG. 7 is a side cross-sectional view of a mouthpiece connection part of an endoscope liquid supply / suction tube according to a third embodiment of the present invention.
【図８】本発明の第３の実施の形態の内視鏡用送吸液チ
ューブの口金接続部の平面断面図である。FIG. 8 is a plan cross-sectional view of a mouthpiece connection part of an endoscope liquid supply / suction tube according to a third embodiment of the present invention.
【図９】本発明の第３の実施の形態の硬質接続パイプの
Ｋ−Ｋ断面を示す正面断面図である。FIG. 9 is a front sectional view showing a KK section of the rigid connection pipe according to the third embodiment of the present invention.
【図１０】本発明の第４の実施の形態の硬質接続パイプ
のＫ−Ｋ断面を示す正面断面図である。FIG. 10 is a front sectional view showing a KK section of a rigid connection pipe according to a fourth embodiment of the present invention.
１ 可撓性チューブ ２ 口金 ３ 硬質接続パイプ部 ４ 接続部押さえ筒 DESCRIPTION OF SYMBOLS 1 Flexible tube 2 Base 3 Hard connection pipe part 4 Connection part holding cylinder
Claims (6)
る可撓性チューブの基端側に口金が結合された内視鏡用
チューブの口金接続部において、 上記口金に、上記可撓性チューブの内径より大きい外径
を有する硬質接続パイプ部を設けて、その硬質接続パイ
プ部を上記可撓性チューブの端部内にきつく嵌め込み、
上記硬質接続パイプ部が嵌め込まれた部分の上記可撓性
チューブの外周部分に、硬質材料からなる筒状体を被嵌
したことを特徴とする内視鏡用チューブの口金接続部。An endoscope tube having a base connected to a base end of a flexible tube inserted into and removed from a treatment instrument insertion channel of an endoscope, wherein the base is connected to the flexible base. Providing a rigid connecting pipe portion having an outer diameter greater than the inner diameter of the flexible tube, tightly fitting the rigid connecting pipe portion into the end of the flexible tube;
A base connection portion for an endoscope tube, wherein a cylindrical body made of a hard material is fitted on an outer peripheral portion of the flexible tube at a portion where the hard connection pipe portion is fitted.
部が嵌め込まれた部分の上記可撓性チューブの外径より
小さい径である請求項１記載の内視鏡用チューブの口金
接続部。2. An endoscope tube connection according to claim 1, wherein an inner diameter of said tubular body is smaller than an outer diameter of said flexible tube in a portion where said hard connection pipe portion is fitted. Department.
の断面形状が非円形である請求項１又は２記載の内視鏡
用チューブの口金接続部。3. The base connector of an endoscope tube according to claim 1, wherein a cross-sectional shape of at least a part of the hard connection pipe is non-circular.
の断面形状が楕円形である請求項３記載の内視鏡用チュ
ーブの口金接続部。4. The base connection part for an endoscope tube according to claim 3, wherein a cross-sectional shape of at least a part of the rigid connection pipe part is elliptical.
る可撓性チューブの基端側に口金を結合する内視鏡用チ
ューブの口金接続部の製造方法において、 上記可撓性チューブの端部に、上記口金に設けられた上
記可撓性チューブの内径より大きい外径を有する硬質接
続パイプ部を圧入し、上記可撓性チューブの自然状態の
外径より大きい内径の硬質材料からなる筒状体を、上記
可撓性チューブ側から上記口金の方に移動させて、上記
硬質接続パイプ部が圧入された部分の上記可撓性チュー
ブの外周部分に上記筒状体を被嵌したことを特徴とする
内視鏡用チューブの口金接続部の製造方法。5. A method for manufacturing a base connection portion of an endoscope tube, wherein a base is connected to a base end side of a flexible tube inserted into and removed from a treatment tool insertion channel of an endoscope. At the end of the flexible tube, press-fit a hard connection pipe portion having an outer diameter larger than the inner diameter of the flexible tube provided on the base, and from a hard material having an inner diameter larger than the natural outer diameter of the flexible tube. The tubular body was moved from the flexible tube side toward the base, and the tubular body was fitted on the outer peripheral portion of the flexible tube where the hard connection pipe portion was press-fitted. A method for producing a base connection portion of an endoscope tube, characterized by comprising:
部が嵌め込まれた部分の上記可撓性チューブの外径より
小さい径である請求項５記載の内視鏡用チューブの口金
接続部の製造方法。6. The base tube connection of an endoscope tube according to claim 5, wherein the inner diameter of the tubular body is smaller than the outer diameter of the flexible tube in a portion where the hard connection pipe portion is fitted. How to manufacture the part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP08782597A JP3505061B2 (en) | 1997-04-07 | 1997-04-07 | Endoscope tube base connection part and method of manufacturing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP08782597A JP3505061B2 (en) | 1997-04-07 | 1997-04-07 | Endoscope tube base connection part and method of manufacturing the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH10276972A true JPH10276972A (en) | 1998-10-20 |
| JP3505061B2 JP3505061B2 (en) | 2004-03-08 |
Family
ID=13925740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP08782597A Expired - Fee Related JP3505061B2 (en) | 1997-04-07 | 1997-04-07 | Endoscope tube base connection part and method of manufacturing the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3505061B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001340464A (en) * | 2000-06-05 | 2001-12-11 | Asahi Optical Co Ltd | Catheter for endoscope |
| JP2002065596A (en) * | 2000-08-25 | 2002-03-05 | Asahi Optical Co Ltd | Piping connection part for endoscope |
| JP2006110215A (en) * | 2004-10-18 | 2006-04-27 | Pentax Corp | Water supply bottle apparatus for endoscope |
| JP2007130197A (en) * | 2005-11-10 | 2007-05-31 | Pentax Corp | Structure for pipe joint of endoscope |
| WO2019106915A1 (en) * | 2017-11-30 | 2019-06-06 | オリンパス株式会社 | Insertion device |
| WO2019106916A1 (en) * | 2017-11-30 | 2019-06-06 | オリンパス株式会社 | Insertion device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001340464A (en) * | 2000-06-05 | 2001-12-11 | Asahi Optical Co Ltd | Catheter for endoscope |
| JP2002065596A (en) * | 2000-08-25 | 2002-03-05 | Asahi Optical Co Ltd | Piping connection part for endoscope |
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| WO2019106915A1 (en) * | 2017-11-30 | 2019-06-06 | オリンパス株式会社 | Insertion device |
| WO2019106916A1 (en) * | 2017-11-30 | 2019-06-06 | オリンパス株式会社 | Insertion device |
| CN111225595A (en) * | 2017-11-30 | 2020-06-02 | 奥林巴斯株式会社 | Insertion device |
| US11439294B2 (en) | 2017-11-30 | 2022-09-13 | Olympus Corporation | Insertion apparatus, endoscope, and connection structure for connecting exterior member and cylindrical member |
| CN111225595B (en) * | 2017-11-30 | 2023-01-24 | 奥林巴斯株式会社 | Insertion device, connection structure of exterior member, and endoscope |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3505061B2 (en) | 2004-03-08 |
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