JP5975486B2 - カテーテル - Google Patents
カテーテル Download PDFInfo
- Publication number
- JP5975486B2 JP5975486B2 JP2013028088A JP2013028088A JP5975486B2 JP 5975486 B2 JP5975486 B2 JP 5975486B2 JP 2013028088 A JP2013028088 A JP 2013028088A JP 2013028088 A JP2013028088 A JP 2013028088A JP 5975486 B2 JP5975486 B2 JP 5975486B2
- Authority
- JP
- Japan
- Prior art keywords
- layer
- outer layer
- catheter
- blade
- strand
- 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.)
- Active
Links
- 239000011347 resin Substances 0.000 claims description 42
- 229920005989 resin Polymers 0.000 claims description 42
- 238000005452 bending Methods 0.000 description 12
- 239000000463 material Substances 0.000 description 12
- 230000000694 effects Effects 0.000 description 8
- 235000019589 hardness Nutrition 0.000 description 7
- 208000031481 Pathologic Constriction Diseases 0.000 description 5
- 210000004204 blood vessel Anatomy 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 208000037804 stenosis Diseases 0.000 description 5
- 230000036262 stenosis Effects 0.000 description 5
- 239000004952 Polyamide Substances 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 229920002647 polyamide Polymers 0.000 description 4
- 229910001385 heavy metal Inorganic materials 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229920002635 polyurethane Polymers 0.000 description 3
- 239000004814 polyurethane Substances 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 3
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 239000000806 elastomer Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- 239000010937 tungsten Substances 0.000 description 2
- 238000009941 weaving Methods 0.000 description 2
- 238000009954 braiding Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 229920003225 polyurethane elastomer Polymers 0.000 description 1
- 239000002990 reinforced plastic Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/0043—Catheters; Hollow probes characterised by structural features
- A61M25/0045—Catheters; Hollow probes characterised by structural features multi-layered, e.g. coated
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/0043—Catheters; Hollow probes characterised by structural features
- A61M25/005—Catheters; Hollow probes characterised by structural features with embedded materials for reinforcement, e.g. wires, coils, braids
- A61M25/0053—Catheters; Hollow probes characterised by structural features with embedded materials for reinforcement, e.g. wires, coils, braids having a variable stiffness along the longitudinal axis, e.g. by varying the pitch of the coil or braid
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/0043—Catheters; Hollow probes characterised by structural features
- A61M25/005—Catheters; Hollow probes characterised by structural features with embedded materials for reinforcement, e.g. wires, coils, braids
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/0043—Catheters; Hollow probes characterised by structural features
- A61M2025/0059—Catheters; Hollow probes characterised by structural features having means for preventing the catheter, sheath or lumens from collapsing due to outer forces, e.g. compressing forces, or caused by twisting or kinking
Description
本発明の態様6のカテーテルでは、本体部と隣接部との境界が、中層の凹部に配置されている。そのため、カテーテルを湾曲させたときに、第二外層の後端(境界付近にある第二外層)が中層の凸部に引っ掛かって、アンカー効果により、更に第二外層が中層から剥離しにくくすることができる。
10 カテーテルシャフト
12 先端チップ
14 コネクタ
15 先端開口部
18 ルーメン
24、240 内層
26、260 ブレード
26a、26b 素線
28、280 外層
29 中層
30a、30b 引っ張り応力
31 凸部
32 凹部
40a 、40b 引っ張り応力
Claims (5)
- 本体部からその本体部に隣接する隣接部まで形成された樹脂からなる内層と、
前記本体部から前記隣接部まで前記内層の外周に編組されたブレードと、
前記本体部から前記隣接部まで前記ブレードの外周を被膜する中層と、
前記本体部において、前記中層の外周を被膜する樹脂からなる第一外層と、
前記隣接部において、前記中層の外周を被膜し、かつ、前記第一外層よりも柔軟な樹脂からなる第二外層と、を備えたカテーテルにおいて、
前記中層は、前記本体部から前記隣接部まで、前記ブレード上に凸部を、隣接した前記ブレードの間隙に凹部を、含んだ輪郭を有しており、
前記間隙における前記中層の厚さは、前記本体部から前記隣接部まで一定であり、
前記本体部と前記隣接部との境界を、前記中層の前記凹部に配置したことを特徴としたカテーテル。 - 前記中層は、前記第二外層よりも剛性の高い樹脂であることを特徴とした請求項1に記載のカテーテル。
- 前記中層は、前記第一外層及び前記第二外層よりも剛性の高い樹脂であることを特徴とした請求項2に記載のカテーテル。
- 前記ブレードは、第一素線と第二素線とからなり、前記第一素線の断面形状と前記第二素線の断面形状とが、共に矩形であることを特徴とした請求項1乃至請求項3の何れかに記載のカテーテル。
- 前記ブレードは、第一素線と第二素線とからなり、前記第一素線の断面形状と前記第二素線の断面形状とが、一方は丸形であり、他方が前記丸形の直径よりも長い辺を有する矩形であることを特徴とした請求項1乃至請求項3の何れかに記載のカテーテル。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013028088A JP5975486B2 (ja) | 2013-02-15 | 2013-02-15 | カテーテル |
CN201410010683.9A CN103990218A (zh) | 2013-02-15 | 2014-01-09 | 导管 |
US14/158,184 US20140236124A1 (en) | 2013-02-15 | 2014-01-17 | Catheter |
EP14152293.8A EP2767303A1 (en) | 2013-02-15 | 2014-01-23 | Catheter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013028088A JP5975486B2 (ja) | 2013-02-15 | 2013-02-15 | カテーテル |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2016137812A Division JP6153648B2 (ja) | 2016-07-12 | 2016-07-12 | カテーテル |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2014155606A JP2014155606A (ja) | 2014-08-28 |
JP5975486B2 true JP5975486B2 (ja) | 2016-08-23 |
Family
ID=50000807
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2013028088A Active JP5975486B2 (ja) | 2013-02-15 | 2013-02-15 | カテーテル |
Country Status (4)
Country | Link |
---|---|
US (1) | US20140236124A1 (ja) |
EP (1) | EP2767303A1 (ja) |
JP (1) | JP5975486B2 (ja) |
CN (1) | CN103990218A (ja) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6462542B2 (ja) * | 2015-09-15 | 2019-01-30 | 朝日インテック株式会社 | バルーンカテーテル |
KR20200036062A (ko) | 2016-09-21 | 2020-04-06 | 아사히 인텍크 가부시키가이샤 | 카테터 및 벌룬 카테터 |
WO2018066060A1 (ja) * | 2016-10-04 | 2018-04-12 | 朝日インテック株式会社 | カテーテル及びバルーンカテーテル |
US10926060B2 (en) * | 2017-03-02 | 2021-02-23 | Covidien Lp | Flexible tip catheter |
WO2019146026A1 (ja) * | 2018-01-25 | 2019-08-01 | 朝日インテック株式会社 | カテーテル |
JP6811511B2 (ja) * | 2018-02-15 | 2021-01-13 | 朝日インテック株式会社 | カテーテル及びバルーンカテーテル |
CN110639114B (zh) * | 2018-06-27 | 2023-03-17 | 先健科技(深圳)有限公司 | 导管 |
JP6719809B2 (ja) * | 2018-07-27 | 2020-07-08 | 朝日インテック株式会社 | カテーテル及びバルーンカテーテル |
EP3865172A4 (en) * | 2018-10-11 | 2022-06-08 | Asahi Intecc Co., Ltd. | MULTI-LUMEN TUBE FOR MEDICAL PURPOSES AND PROCESS FOR ITS MANUFACTURE |
KR20210125540A (ko) * | 2019-03-15 | 2021-10-18 | 니혼라이프라인 가부시키가이샤 | 심강 내 제세동 카테터 |
EP4285978A1 (en) * | 2021-02-22 | 2023-12-06 | TERUMO Kabushiki Kaisha | Catheter |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5254107A (en) | 1991-03-06 | 1993-10-19 | Cordis Corporation | Catheter having extended braid reinforced transitional tip |
US5755704A (en) * | 1996-10-29 | 1998-05-26 | Medtronic, Inc. | Thinwall guide catheter |
US6648874B2 (en) * | 2000-02-28 | 2003-11-18 | Scimed Life Systems, Inc. | Guide catheter with lubricious inner liner |
US7306585B2 (en) * | 2004-09-30 | 2007-12-11 | Engineering Resources Group, Inc. | Guide catheter |
JP5249591B2 (ja) * | 2007-03-23 | 2013-07-31 | テルモ株式会社 | ガイドワイヤ |
US9011745B2 (en) * | 2010-06-10 | 2015-04-21 | Kaneka Corporation | Method for manufacturing a medical tube |
JP2012196275A (ja) * | 2011-03-18 | 2012-10-18 | Asahi Intecc Co Ltd | カテーテル |
JP5869235B2 (ja) * | 2011-06-02 | 2016-02-24 | 株式会社グッドマン | 医療用器具 |
-
2013
- 2013-02-15 JP JP2013028088A patent/JP5975486B2/ja active Active
-
2014
- 2014-01-09 CN CN201410010683.9A patent/CN103990218A/zh active Pending
- 2014-01-17 US US14/158,184 patent/US20140236124A1/en not_active Abandoned
- 2014-01-23 EP EP14152293.8A patent/EP2767303A1/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
CN103990218A (zh) | 2014-08-20 |
JP2014155606A (ja) | 2014-08-28 |
EP2767303A1 (en) | 2014-08-20 |
US20140236124A1 (en) | 2014-08-21 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5975486B2 (ja) | カテーテル | |
EP2923724B1 (en) | Catheter | |
KR102232734B1 (ko) | 카테터 | |
JP6426068B2 (ja) | カテーテル及びバルーンカテーテル | |
JP5757532B2 (ja) | カテーテル | |
WO2010067875A1 (ja) | 医療用チューブ | |
KR102113385B1 (ko) | 카테터 및 벌룬 카테터 | |
JP6558773B2 (ja) | カテーテル | |
JP5869235B2 (ja) | 医療用器具 | |
JP5013380B2 (ja) | 医療用チューブ、及び、これを用いたカテーテル | |
JP2015208425A (ja) | カテーテル | |
EP3556421B1 (en) | Balloon catheter | |
JP5898861B2 (ja) | 医療用器具 | |
JP6153648B2 (ja) | カテーテル | |
JP7279466B2 (ja) | カテーテル | |
JP6847274B2 (ja) | カテーテル | |
JP6868319B2 (ja) | カテーテル | |
JP2018086350A (ja) | カテーテル及びバルーンカテーテル | |
JP2012196498A (ja) | 医療用チューブ | |
JP6719809B2 (ja) | カテーテル及びバルーンカテーテル | |
JP6913664B2 (ja) | バルーンカテーテル | |
JP6882482B2 (ja) | バルーンカテーテル |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20150610 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20160426 |
|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20160428 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20160516 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20160623 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20160713 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 5975486 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
RD04 | Notification of resignation of power of attorney |
Free format text: JAPANESE INTERMEDIATE CODE: R3D04 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |