JP2002224023A - Method of manufacturing for channel tube for endoscope - Google Patents
Method of manufacturing for channel tube for endoscopeInfo
- Publication number
- JP2002224023A JP2002224023A JP2001027584A JP2001027584A JP2002224023A JP 2002224023 A JP2002224023 A JP 2002224023A JP 2001027584 A JP2001027584 A JP 2001027584A JP 2001027584 A JP2001027584 A JP 2001027584A JP 2002224023 A JP2002224023 A JP 2002224023A
- Authority
- JP
- Japan
- Prior art keywords
- tube
- flexible tube
- reinforcing member
- endoscope
- manufacturing
- 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.)
- Withdrawn
Links
Landscapes
- Rigid Pipes And Flexible Pipes (AREA)
- Endoscopes (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は内視鏡用チャンネ
ルチューブの製造方法に関する。The present invention relates to a method for manufacturing a channel tube for an endoscope.
【０００２】[0002]
【従来の技術】処置具挿通チャンネルチューブや送気送
水チューブ等（以下、「内視鏡用チャンネルチューブ」
という）は、一般に四フッ化エチレン樹脂チューブ等の
ような可撓性チューブによって形成されており、小さな
曲率半径で曲げられたときの腰折れ防止を図る必要があ
る部分には、螺旋管や網状管等のような金属製の補強部
材が巻き付けられている。2. Description of the Related Art A treatment instrument insertion channel tube, an air supply / water supply tube, and the like (hereinafter, "endoscope channel tube")
) Is generally formed of a flexible tube such as a tetrafluoroethylene resin tube, and a portion where it is necessary to prevent buckling when bent with a small radius of curvature includes a spiral tube or a mesh tube. A metal reinforcing member such as the above is wound.
【０００３】[0003]
【発明が解決しようとする課題】しかし、そのような補
強部材は使用中に巻き付けピッチの間隔がずれてしまう
場合があり、部分的に隙間が広がった部分に曲げ応力が
集中することにより、かえって可撓性チューブが折れ易
くなる場合がある。However, in such a reinforcing member, the interval of the winding pitch may be shifted during use, and the bending stress is concentrated on the portion where the gap is widened, so that the reinforcing member is rather concentrated. The flexible tube may be easily broken.
【０００４】また、可撓性チューブの外周面に螺旋溝を
形成して補強用の螺旋管をその螺旋溝に巻き付ける構成
をとることにより、補強部材のピッチのずれを防止した
ものもある。Further, there is a structure in which a spiral groove is formed on the outer peripheral surface of a flexible tube and a reinforcing spiral tube is wound around the spiral groove, thereby preventing the pitch of the reinforcing member from shifting.
【０００５】しかしそのようなものでも、可撓性チュー
ブが小さな曲率半径で曲げられた時に断面形状が偏平状
になることにより、補強部材が可撓性チューブの表面か
ら離れて補強効果が低下し、可撓性チューブが座屈して
しまう場合がある。However, even in such a case, when the flexible tube is bent with a small radius of curvature, the cross-sectional shape becomes flat, so that the reinforcing member is separated from the surface of the flexible tube and the reinforcing effect is reduced. In some cases, the flexible tube may buckle.
【０００６】そこで、可撓性チューブに補強部材が巻き
付けられた状態のものを加熱して、可撓性チューブを軟
化又は溶融することにより可撓性チューブと補強部材と
の結合状態の強化を図ったものもある。[0006] Accordingly, the state in which the reinforcing member is wound around the flexible tube is heated to soften or melt the flexible tube, thereby strengthening the connection between the flexible tube and the reinforcing member. There are some.
【０００７】しかし、そのようにすると、可撓性チュー
ブ全体が加熱されて軟化、溶融してしまうので、チュー
ブ形状に歪みが出て蛇行等が発生し、かえって品質が低
下してしまう。However, in this case, the entire flexible tube is heated and softened and melted, so that the shape of the tube is distorted, meandering or the like is generated, and the quality is rather deteriorated.
【０００８】そこで本発明は、可撓性チューブと補強部
材との結合状態を効果的に強化して、耐久性の優れた内
視鏡用チャンネルチューブを得ることができる内視鏡用
チャンネルチューブの製造方法を提供することを目的と
する。Accordingly, the present invention provides an endoscope channel tube capable of effectively strengthening the connection between a flexible tube and a reinforcing member to obtain an endoscope channel tube having excellent durability. It is intended to provide a manufacturing method.
【０００９】[0009]
【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ャンネルチューブの製造方法
は、可撓性チューブの内周面又は外周面に沿って金属製
の補強部材が配置された内視鏡用チャンネルチューブの
製造方法において、可撓性チューブが加熱により軟化又
は溶融する合成樹脂材によって形成されていて、補強部
材を可撓性チューブの内周面又は外周面に沿って配置さ
れた状態で発熱させることにより、補強部材に対する可
撓性チューブの接触部分が局部的に軟化又は溶融して、
可撓性チューブと補強部材との結合状態が強まるように
したものである。In order to achieve the above object, a method of manufacturing a channel tube for an endoscope according to the present invention comprises a reinforcing member made of metal along an inner peripheral surface or an outer peripheral surface of a flexible tube. Wherein the flexible tube is formed of a synthetic resin material that is softened or melted by heating, and a reinforcing member is provided on the inner or outer peripheral surface of the flexible tube. By generating heat while being arranged along, the contact portion of the flexible tube to the reinforcing member is locally softened or melted,
The connection between the flexible tube and the reinforcing member is strengthened.
【００１０】なお、可撓性チューブの内周面又は外周面
に沿って補強部材が配置された状態のものを高周波磁場
内に置くことにより、補強部材が電磁誘導により発熱す
るとよい。[0010] By placing a flexible tube having a reinforcing member disposed along the inner or outer peripheral surface in a high-frequency magnetic field, the reinforcing member may generate heat by electromagnetic induction.
【００１１】そして、補強部材の発熱で可撓性チューブ
が軟化又は溶融することにより、補強部材が可撓性チュ
ーブの壁面にめり込む状態になると、可撓性チューブと
補強部材との結合力が強まる。[0011] Then, when the flexible tube is softened or melted by the heat generated by the reinforcing member, and the reinforcing member is sunk into the wall surface of the flexible tube, the bonding force between the flexible tube and the reinforcing member is increased. .
【００１２】なお、可撓性チューブが内外二層になって
いて、その層間に補強部材が配置されていてもよく、補
強部材が螺旋管、コイルスプリング又は網状管であって
もよい。The flexible tube may have two layers, inner and outer, and a reinforcing member may be disposed between the layers. The reinforcing member may be a spiral tube, a coil spring, or a mesh tube.
【００１３】[0013]
【発明の実施の形態】図面を参照して本発明の実施例を
説明する。図２は、本発明の第１の実施例の内視鏡用チ
ャンネルチューブの製造方法に用いられる素材である可
撓性チューブ１１とその補強部材となる螺旋管２０とが
組み合わされた状態を示している。Embodiments of the present invention will be described with reference to the drawings. FIG. 2 shows a state in which a flexible tube 11 which is a material used in a method of manufacturing an endoscope channel tube according to a first embodiment of the present invention and a spiral tube 20 which is a reinforcing member thereof are combined. ing.
【００１４】可撓性チューブ１１の材料としては、熱よ
って軟化するＰＴＦＥ（ポリテトラフルオロエチレ
ン）、又は熱によって溶解する熱可塑性のＦＥＰ（四フ
ッ化エチレン−六フッ化プロピレン共重合体）、ＰＦＡ
（四フッ化エチレン−パ−フルオロアルキルビニルエー
テル共重合体）、ポリエチレン又はポリウレタン、或い
はその他の材料を用いることができる。The material of the flexible tube 11 is PTFE (polytetrafluoroethylene) which is softened by heat, thermoplastic FEP (ethylene tetrafluoride-propylene hexafluoride copolymer) which is dissolved by heat, PFA
(Ethylene tetrafluoride-perfluoroalkyl vinyl ether copolymer), polyethylene or polyurethane, or other materials can be used.
【００１５】螺旋管２０は、例えばステンレス鋼帯材を
一定の径でピッチ方向に隙間をあけて螺旋状に巻いて形
成されており、可撓性チューブ１１の外径よりやや細い
内径を有する素材が用いられている。The spiral tube 20 is formed, for example, by spirally winding a stainless steel strip at a constant diameter with a gap in the pitch direction, and has a material having an inner diameter slightly smaller than the outer diameter of the flexible tube 11. Is used.
【００１６】したがって、螺旋管２０は広がり方向に弾
性変形された状態で可撓性チューブ１１に装着され、装
着後は、螺旋管２０がその弾性によって可撓性チューブ
１１を締め付ける状態になっている。Accordingly, the spiral tube 20 is mounted on the flexible tube 11 in a state of being elastically deformed in the spreading direction, and after the mounting, the spiral tube 20 is in a state of tightening the flexible tube 11 by its elasticity. .
【００１７】このように可撓性チューブ１１の外周面に
螺旋管２０が装着されたものを、図１に示されるよう
に、高周波電流が流される通電コイル５０中に配置す
る。すると、導電性のある螺旋管２０が電磁誘導によっ
て発熱する。The flexible tube 11 having the spiral tube 20 mounted on the outer peripheral surface thereof is disposed in an energizing coil 50 through which a high-frequency current flows, as shown in FIG. Then, the conductive spiral tube 20 generates heat by electromagnetic induction.
【００１８】その結果、螺旋管２０と接触している可撓
性チューブ１１の外周面部分がその熱で局部的に軟化又
は溶解されて、締め付け力を有する螺旋管２０が可撓性
チューブ１１の外周面にめり込む状態になり、可撓性チ
ューブ１１と螺旋管２０との結合力が著しく高まる。As a result, the outer peripheral surface portion of the flexible tube 11 that is in contact with the spiral tube 20 is locally softened or melted by the heat, and the spiral tube 20 having a tightening force is formed by the flexible tube 11. As a result, the connecting force between the flexible tube 11 and the spiral tube 20 is significantly increased.
【００１９】そして、螺旋管２０によって加熱されて軟
化又は溶融するのは可撓性チューブ１１の外周面に近い
部分だけであり、可撓性チューブ１１の内周面寄りの部
分は変形しないので、可撓性チューブ１１が蛇行したり
せず安定した品質の内視鏡用チャンネルチューブを得る
ことができる。Only the portion near the outer peripheral surface of the flexible tube 11 is heated or softened or melted by the helical tube 20, and the portion near the inner peripheral surface of the flexible tube 11 is not deformed. A stable quality endoscope channel tube can be obtained without the flexible tube 11 meandering.
【００２０】図３は、本発明の第２の実施例の内視鏡用
チャンネルチューブの製造工程を示しており、螺旋管２
０を可撓性チューブ１１の内側に配置したものである。
その他は、上述の第１の実施例と同様である。FIG. 3 shows a manufacturing process of an endoscope channel tube according to a second embodiment of the present invention.
0 is disposed inside the flexible tube 11.
The rest is the same as the first embodiment described above.
【００２１】この実施例の場合、螺旋管２０として可撓
性チューブ１１の内径よりやや太い外径を有する素材が
用いられて、螺旋管２０がその弾性によって可撓性チュ
ーブ１１を押し広げようとする状態で通電コイル５０に
高周波電流が通電される。In this embodiment, a material having an outer diameter slightly larger than the inner diameter of the flexible tube 11 is used as the helical tube 20, and the helical tube 20 tries to expand the flexible tube 11 by its elasticity. In this state, a high-frequency current is applied to the energizing coil 50.
【００２２】すると、電磁誘導により発熱した螺旋管２
０と接触している可撓性チューブ１１の内周面部分が局
部的に軟化又は溶解されて、螺旋管２０が可撓性チュー
ブ１１の内周面にめり込む状態になり、第１の実施例と
同様の作用効果が得られる。Then, the spiral tube 2 heated by electromagnetic induction
The inner surface of the flexible tube 11 that is in contact with the tube 0 is locally softened or melted, and the helical tube 20 enters the inner surface of the flexible tube 11. The same operation and effect as described above can be obtained.
【００２３】図４は、本発明の第３の実施例の内視鏡用
チャンネルチューブの製造工程を示しており、可撓性チ
ューブ１１の外周面に螺旋溝を形成して、補強部材とし
て例えばステンレス鋼線製のコイルスプリング３０をそ
れに沿って巻き付け、その外面に熱可塑性樹脂製の薄い
外装チューブ１２を被覆（又は塗布）した状態で、通電
コイル５０に高周波電流を通電するようにしたものであ
る。FIG. 4 shows a process of manufacturing a channel tube for an endoscope according to a third embodiment of the present invention, in which a spiral groove is formed on the outer peripheral surface of the flexible tube 11 so as to serve as a reinforcing member. A coil spring 30 made of a stainless steel wire is wound along the coil spring 30, and a high-frequency current is applied to the energizing coil 50 in a state in which a thin outer tube 12 made of a thermoplastic resin is covered (or applied) on the outer surface thereof. is there.
【００２４】そのようにすることにより、発熱したコイ
ルスプリング３０と接触する外装チューブ１２の表面が
溶解して、可撓性チューブ１１と外装チューブ１２とが
溶着された状態になる。By doing so, the surface of the outer tube 12 in contact with the heated coil spring 30 is melted, and the flexible tube 11 and the outer tube 12 are welded.
【００２５】その結果、可撓性チューブ１１と外装チュ
ーブ１２とがコイルスプリング３０を間に挟んで一体的
に強固に結合した状態になるが、可撓性チューブ１１の
内面寄りの部分は熱変形しないので、蛇行等は発生しな
い。As a result, the flexible tube 11 and the outer tube 12 are integrally and firmly connected to each other with the coil spring 30 interposed therebetween, but a portion near the inner surface of the flexible tube 11 is thermally deformed. No meandering occurs.
【００２６】図５は、本発明の第４の実施例の内視鏡用
チャンネルチューブの製造工程を示しており、ステンレ
ス鋼細線を編組して形成された網状管４０を補強部材と
して可撓性チューブ１１と外装チューブ１２との間に挟
み込んだ状態で、通電コイル５０に高周波電流を通電す
るようにしたものである。FIG. 5 shows a process of manufacturing a channel tube for an endoscope according to a fourth embodiment of the present invention. A high-frequency current is applied to the energizing coil 50 while being sandwiched between the tube 11 and the outer tube 12.
【００２７】この場合は、可撓性チューブ１１と外装チ
ューブ１２の少なくとも一方に熱可塑性樹脂材を用いる
ことにより、可撓性チューブ１１と外装チューブ１２と
が溶着され、可撓性チューブ１１と外装チューブ１２と
が網状管４０を間に挟んで一体的に強固に結合した状態
になる。In this case, by using a thermoplastic resin material for at least one of the flexible tube 11 and the outer tube 12, the flexible tube 11 and the outer tube 12 are welded to each other. The tube 12 and the tube 12 are firmly connected integrally with the mesh tube 40 interposed therebetween.
【００２８】[0028]
【発明の効果】本発明によれば、補強部材を電磁誘導に
よって発熱させることにより、補強部材に対する可撓性
チューブの接触部分が局部的に軟化又は溶融して、可撓
性チューブと補強部材との結合状態が強化され、可撓性
チューブが軟化又は溶融するのは補強部材との接触部付
近だけなので、可撓性チューブが蛇行したりせず安定し
た品質の内視鏡用チャンネルチューブを得ることができ
る。According to the present invention, by causing the reinforcing member to generate heat by electromagnetic induction, the contact portion of the flexible tube with the reinforcing member is locally softened or melted, and the flexible tube and the reinforcing member are separated from each other. And the flexible tube is softened or melted only in the vicinity of the contact portion with the reinforcing member, so that the flexible tube does not meander and a stable quality endoscope channel tube is obtained. be able to.
【図１】本発明の第１の実施例の内視鏡用チャンネルチ
ューブの製造工程を示す側面断面図である。FIG. 1 is a side sectional view showing a manufacturing process of an endoscope channel tube according to a first embodiment of the present invention.
【図２】本発明の第１の実施例の内視鏡用チャンネルチ
ューブの製造工程を示す側面断面図である。FIG. 2 is a side sectional view showing a manufacturing process of the endoscope channel tube according to the first embodiment of the present invention.
【図３】本発明の第２の実施例の内視鏡用チャンネルチ
ューブの製造工程を示す側面断面図である。FIG. 3 is a side sectional view showing a manufacturing process of an endoscope channel tube according to a second embodiment of the present invention.
【図４】本発明の第３の実施例の内視鏡用チャンネルチ
ューブの製造工程を示す側面断面図である。FIG. 4 is a side sectional view showing a manufacturing process of an endoscope channel tube according to a third embodiment of the present invention.
【図５】本発明の第４の実施例の内視鏡用チャンネルチ
ューブの製造工程を示す側面断面図である。FIG. 5 is a side sectional view showing a manufacturing process of an endoscope channel tube according to a fourth embodiment of the present invention.
１１ 可撓性チューブ １２ 外装チューブ ２０ 螺旋管（補強部材） ３０ コイルスプリング（補強部材） ４０ 網状管（補強部材） ５０ 通電コイル DESCRIPTION OF SYMBOLS 11 Flexible tube 12 Outer tube 20 Spiral tube (reinforcing member) 30 Coil spring (reinforcing member) 40 Reticulated tube (reinforcing member) 50 Current-carrying coil
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｂ２９Ｌ 23:00 Ｂ２９Ｌ 23:00 31:00 31:00 Ｆターム(参考） 3H111 AA02 BA15 CC08 CC12 CC13 DB21 EA12 EA17 4C061 FF42 FF43 JJ03 JJ06 4F211 AA04 AA16 AA17 AA31 AD03 AD12 AD24 AG03 AG08 AG10 AH63 AK11 SA11 SC01 SD04 SH06 SP30 ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 7 Identification FI FI Theme Court ゛ (Reference) B29L 23:00 B29L 23:00 31:00 31:00 F-term (Reference) 3H111 AA02 BA15 CC08 CC12 CC13 DB21 EA12 EA17 4C061 FF42 FF43 JJ03 JJ06 4F211 AA04 AA16 AA17 AA31 AD03 AD12 AD24 AG03 AG08 AG10 AH63 AK11 SA11 SC01 SD04 SH06 SP30
Claims (5)
て金属製の補強部材が配置された内視鏡用チャンネルチ
ューブの製造方法において、 上記可撓性チューブが加熱により軟化又は溶融する合成
樹脂材によって形成されていて、上記補強部材を上記可
撓性チューブの内周面又は外周面に沿って配置された状
態で発熱させることにより、上記補強部材に対する上記
可撓性チューブの接触部分が局部的に軟化又は溶融し
て、上記可撓性チューブと上記補強部材との結合状態が
強まるようにしたことを特徴とする内視鏡用チャンネル
チューブの製造方法。1. A method of manufacturing an endoscope channel tube in which a metal reinforcing member is disposed along an inner peripheral surface or an outer peripheral surface of a flexible tube, wherein the flexible tube is softened or melted by heating. By contacting the flexible tube with the reinforcing member by generating heat in a state where the reinforcing member is arranged along the inner peripheral surface or the outer peripheral surface of the flexible tube. A method of manufacturing a channel tube for an endoscope, characterized in that a portion is locally softened or melted to strengthen the connection between the flexible tube and the reinforcing member.
沿って上記補強部材が配置された状態のものを高周波磁
場内に置くことにより、上記補強部材が電磁誘導により
発熱する請求項１記載の内視鏡用チャンネルチューブの
製造方法。2. A flexible tube in which the reinforcing member is arranged along the inner or outer peripheral surface of the flexible tube is placed in a high-frequency magnetic field, so that the reinforcing member generates heat by electromagnetic induction. 2. The method for producing the channel tube for an endoscope according to 1.
が軟化又は溶融することにより、上記補強部材が上記可
撓性チューブの壁面にめり込む状態になる請求項１又は
２記載の内視鏡用チャンネルチューブの製造方法。3. The endoscope according to claim 1, wherein the heat generated by the reinforcing member softens or melts the flexible tube, so that the reinforcing member is sunk into the wall surface of the flexible tube. For manufacturing channel tubes for
て、その層間に上記補強部材が配置されている請求項
１、２又は３記載の内視鏡用チャンネルチューブの製造
方法。4. The method for manufacturing an endoscope channel tube according to claim 1, wherein said flexible tube has two layers, inner and outer, and said reinforcing member is disposed between said layers.
又は網状管である請求項１ないし４のいずれかの項に記
載の内視鏡用チャンネルチューブの製造方法。5. The method for manufacturing a channel tube for an endoscope according to claim 1, wherein the reinforcing member is a spiral tube, a coil spring, or a mesh tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001027584A JP2002224023A (en) | 2001-02-05 | 2001-02-05 | Method of manufacturing for channel tube for endoscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001027584A JP2002224023A (en) | 2001-02-05 | 2001-02-05 | Method of manufacturing for channel tube for endoscope |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2002224023A true JP2002224023A (en) | 2002-08-13 |
Family
ID=18892215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001027584A Withdrawn JP2002224023A (en) | 2001-02-05 | 2001-02-05 | Method of manufacturing for channel tube for endoscope |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2002224023A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7317337B2 (en) | 2005-06-29 | 2008-01-08 | Hynix Semiconductor Inc. | Output driver in semiconductor device |
| JP2010268906A (en) * | 2009-05-20 | 2010-12-02 | Fujifilm Corp | Endoscope |
| JP2013533065A (en) * | 2010-08-13 | 2013-08-22 | キャスアールエックス リミテッド | Catheter sheath and manufacturing method |
| JP2013255577A (en) * | 2012-06-11 | 2013-12-26 | Olympus Medical Systems Corp | Tube for endoscope and method for manufacturing the same |
| KR101577066B1 (en) | 2013-12-15 | 2015-12-14 | 권주송 | A heat treatment apparatus using induction heating for inner tube of a gas pipe |
| US9924960B2 (en) | 2015-07-01 | 2018-03-27 | Olympus Corporation | Endoscope treatment tool |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0595892A (en) * | 1991-10-04 | 1993-04-20 | Junkosha Co Ltd | Medical tube and its manufacture |
| JPH09290461A (en) * | 1996-04-26 | 1997-11-11 | Kawasumi Lab Inc | Method for connecting tube member with each other and connected body of tube member |
| JPH1142204A (en) * | 1997-07-24 | 1999-02-16 | Olympus Optical Co Ltd | Manufacture of flexible tube for endoscope |
| JPH11253388A (en) * | 1998-03-10 | 1999-09-21 | Olympus Optical Co Ltd | Endoscope |
-
2001
- 2001-02-05 JP JP2001027584A patent/JP2002224023A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0595892A (en) * | 1991-10-04 | 1993-04-20 | Junkosha Co Ltd | Medical tube and its manufacture |
| JPH09290461A (en) * | 1996-04-26 | 1997-11-11 | Kawasumi Lab Inc | Method for connecting tube member with each other and connected body of tube member |
| JPH1142204A (en) * | 1997-07-24 | 1999-02-16 | Olympus Optical Co Ltd | Manufacture of flexible tube for endoscope |
| JPH11253388A (en) * | 1998-03-10 | 1999-09-21 | Olympus Optical Co Ltd | Endoscope |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7317337B2 (en) | 2005-06-29 | 2008-01-08 | Hynix Semiconductor Inc. | Output driver in semiconductor device |
| JP2010268906A (en) * | 2009-05-20 | 2010-12-02 | Fujifilm Corp | Endoscope |
| JP2013533065A (en) * | 2010-08-13 | 2013-08-22 | キャスアールエックス リミテッド | Catheter sheath and manufacturing method |
| US9700696B2 (en) | 2010-08-13 | 2017-07-11 | Cathrx, Ltd | Method of manufacturing a catheter sheath |
| US10279144B2 (en) | 2010-08-13 | 2019-05-07 | Cathrx Ltd | Method of manufacturing a catheter sheath |
| JP2013255577A (en) * | 2012-06-11 | 2013-12-26 | Olympus Medical Systems Corp | Tube for endoscope and method for manufacturing the same |
| KR101577066B1 (en) | 2013-12-15 | 2015-12-14 | 권주송 | A heat treatment apparatus using induction heating for inner tube of a gas pipe |
| US9924960B2 (en) | 2015-07-01 | 2018-03-27 | Olympus Corporation | Endoscope treatment tool |
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