JP2006515778A - 医療用装置のためのアンバランスな補強部材 - Google Patents
医療用装置のためのアンバランスな補強部材 Download PDFInfo
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- 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
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- 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
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Abstract
Description
3本の0.0254mm(1ミル)のタングステン対2本の0.0381mm(1.5ミル)のHTSS;
3本の0.0318mm(1.25ミル)のタングステン対2本の0.0445mm(1.75ミル)のHTSS;
4本の0.0254mm(1ミル)のタングステン対1本の0.0508mm(2ミル)のタングステンと1本の0.0508mm(2ミル)のHTSSとからなる2本のもの;及び
ワイヤと大きさのその他の多くの例示的な組合せが、例えばトルク特性及び抗屈曲特性のような所望の特性に応じて使用され得る。加えて、個々のワイヤは製造材料に関して混合され、例えば、厚いワイヤはポリマーから形成されたものとHTSSから形成されたものとを含む。複数の実施形態に示されるように、3本の0.0254mm(1ミル)以上のタングステンと2本の0.0381mm(1.5ミル)以上のHTSSとの組合せは、所定の例示的な実施形態において良好な結果が得られることが示唆された。その他の実施形態において、種々の範囲が、例えば、約0.0064mm(0.25ミル)乃至約0.0381mm(1.5ミル)の範囲の直径であるより小さいワイヤを形成する一方で、約0.0318mm(1.25ミル)乃至約0.1016mm(4ミル)の範囲の直径であるより大きなワイヤを形成するうえにおいて望ましいであろう。別の実施形態は、約0.0127mm(0.5ミル)乃至約0.0318mm(1.25ミル)の範囲にあるより小さいワイヤを使用する一方で、約0.0381mm(1.5ミル)乃至約0.0508mm(2ミル)の範囲にあるより大きいワイヤを使用する。
Claims (29)
- 補強層を含む細長いシャフトからなる医療用装置において、前記補強層は編組を形成する複数の織り合わせられたストランドからなり、第1の組の1本以上のストランドが第1の螺旋方向に巻回されるとともに第2の組の1本以上のストランドが前記第1の螺旋方向とは異なる第2の螺旋方向に巻回され、かつ前記第1の組におけるストランドの数は前記第2の組におけるストランドの数より少ない医療用装置。
- 前記第1の組のストランドは第1のピッチにて巻回され、かつ前記第2の組のストランドは第2のピッチにて巻回され、前記第1のピッチは前記第2のピッチとは異なる請求項1に記載の医療用装置。
- 補強層を含む細長いシャフトからなる医療用装置において、前記補強層は編組を形成する複数の織り合わせられたストランドからなり、第1の組の1本以上のストランドが第1の螺旋方向に巻回されるとともに第2の組の1本以上のストランドが前記第1の螺旋方向とは異なる第2の螺旋方向に巻回され、かつ前記第1の組のストランドは第1のピッチにて巻回されるとともに前記第2の組のストランドは第2のピッチにて巻回され、前記第1のピッチは前記第2のピッチとは異なる医療用装置。
- 前記第1の組は1本のストランドを有し、かつ前記第2の組は複数のストランドを有する請求項1、2又は3に記載の医療用装置。
- 前記第2の組におけるストランドの数は、前記第1の組におけるストランドの数の2倍である請求項1、2又は3に記載の医療用装置。
- 前記第1の組は1本のストランドを有し、かつ前記第2の組は2本のストランドを有する請求項1、2又は3に記載の医療用装置。
- 前記第1の組は2本のストランドを有し、かつ前記第2の組は4本のストランドを有する請求項1、2又は3に記載の医療用装置。
- 前記第1の組における1本以上のストランドはタングステンからなり、かつ前記第2の組における1本以上のストランドはステンレス鋼からなる請求項1乃至7のいずれか一項に記載の医療用装置。
- 前記第1の組の2本のストランドのうちの一方はタングステンからなり、前記第1の組の2本のストランドのうちの他方はステンレス鋼からなり、かつ前記第2の組の4本のストランドはステンレス鋼からなる請求項7に記載の医療用装置。
- 前記第1の組の2本のストランドはタングステンからなり、前記第2の組の4本のストランドはステンレス鋼からなる請求項7に記載の医療用装置。
- 前記第1の組及び前記第2の組の各々が複数のストランドを有する請求項1、2又は3に記載の医療用装置。
- 前記第1の組内のストランドは前記第2の組内のストランドより大きい請求項1乃至11のいずれか一項に記載の医療用装置。
- 前記第1の組及び前記第2の組のストランドはリボンである請求項1乃至12のいずれか一項に記載の医療用装置。
- 前記第1の組及び前記第2の組のストランドは円形の断面を有する請求項1乃至12のいずれか一項に記載の医療用装置。
- 前記第1の組のストランドはリボンであり、かつ前記第2の組のストランドは円形の断面を有する請求項1乃至12のいずれか一項に記載の医療用装置。
- 前記細長いシャフトは内層を更に含み、かつ前記補強層は前記内層の周囲に配置されている請求項1乃至15のいずれか一項に記載の医療用装置。
- 前記細長いシャフトは、前記補強層の周囲に配置される外層を更に含む請求項1乃至16のいずれか一項に記載の医療用装置。
- 前記細長いシャフトは内層及び外層を更に含み、かつ前記補強層は前記内層と前記外層との間に配置されている請求項1乃至15のいずれか一項に記載の医療用装置。
- 前記外層は、柔らかい組織を傷つけることのないチップを定義するために、前記補強層及び前記内層を超えて先端側に延びている請求項18に記載の医療用装置。
- 請求項1乃至19のいずれか一項に記載の医療用装置の細長いシャフトを製造するための方法において、前記方法は、
第1の組の1本以上のストランドが第1の螺旋方向に巻回されるとともに第2の組の1本以上のストランドが前記第1の螺旋方向とは異なる第2の螺旋方向に巻回された状態を備えた複数の織り合わせられたストランドからなる編組を形成する工程と、前記編組を前記シャフトに組み込む工程と、
からなる方法。 - 補強層を備えた細長いシャフトからなる医療用装置において、
前記補強層は第1の方向に巻回された第1の層のリボンと、前記第1の方向とは相対向する第2の方向に巻回された第2の層のリボンとからなり、前記第1の層におけるリボンは、前記第2の層におけるリボンとは異なる大きさである医療用装置。 - 前記第1の層のリボンは前記第2の層のリボンより幅広である請求項21に記載の医療用装置。
- 前記第2の層のリボンは前記第1の層のリボンより厚い請求項21又は22に記載の医療用装置。
- 前記第2の層のリボンは、前記第1の層のリボンより大きな屈曲抵抗性を提供するように適合される請求項21、22又は23に記載の医療用装置。
- 医療用装置において使用される編組された補強部材であって、前記編組された補強部材は、
第1の螺旋方向に巻回された第1の組の1本以上のストランドと、
前記第1の螺旋方向とは異なる第2の螺旋方向に巻回された第2の組の1本以上のストランドとからなり、
前記第1の組のストランドの数は前記第2の組のストランドの数と異なる補強部材。 - 前記第1の組の少なくとも1本のストランドの大きさは前記第2の組の少なくとも1本のストランドの大きさとは異なる請求項25に記載の編組された補強部材。
- 医療用装置において使用される編組された補強部材であって、前記編組された補強部材は、
第1の螺旋方向に巻回された第1の組の1本以上のストランドと、
前記第1の螺旋方向とは異なる第2の螺旋方向に巻回された第2の組の1本以上のストランドとからなり、
前記第1の組の少なくとも1本のストランドの大きさは前記第2の組の少なくとも1本のストランドの大きさとは異なる補強部材。 - 請求項25、26又は27に記載の編組された補強部材を形成するための方法において、前記方法は、
第1の組の1本以上のストランドを第1の螺旋方向に巻回する工程と、
第2の組の1本以上のストランドを第2の螺旋方向に巻回する工程と、
からなり、前記第1の組の巻回及び前記第2の組の巻回は、編組された補強部材を形成するために実施される方法。 - 編組された補強部材からなる医療用装置であって、
前記編組された補強部材は第1の方向に巻回される第1の巻回手段と、前記第1の方向とは相対向する第2の方向に巻回される第2の巻回手段とを含み、
前記第1の巻回手段は第1のトルク応答性と第1の屈曲抵抗性とを提供し、かつ
前記第2の巻回手段は第2のトルク応答性と第2の屈曲抵抗性とを提供し、
前記編組された補強部材のトルク応答性は、前記第1のトルク応答性と前記第2のトルク応答性とによりほぼ等しい量にて提供され、かつ
前記編組された補強部材の屈曲抵抗性は前記第2の屈曲抵抗性によりほぼ完全に提供される医療用装置。
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US10/346,697 US8377035B2 (en) | 2003-01-17 | 2003-01-17 | Unbalanced reinforcement members for medical device |
PCT/US2004/001203 WO2004064890A2 (en) | 2003-01-17 | 2004-01-16 | Unbalanced reinforcement members for medical device |
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- 2004-01-16 CA CA2513902A patent/CA2513902C/en not_active Expired - Fee Related
- 2004-01-16 EP EP04703003.6A patent/EP1583579B1/en not_active Expired - Lifetime
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JP2009511184A (ja) * | 2005-10-11 | 2009-03-19 | ボストン サイエンティフィック リミテッド | 医療器具コイル |
JP2011519282A (ja) * | 2007-12-11 | 2011-07-07 | テイジン・アラミド・ビー.ブイ. | 強化マイクロテープを含む血管内カテーテル |
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JP2009207533A (ja) * | 2008-02-29 | 2009-09-17 | Kaneka Corp | 医療用チューブ |
JP2012029872A (ja) * | 2010-07-30 | 2012-02-16 | Terumo Corp | カテーテル |
JP2019150090A (ja) * | 2018-02-28 | 2019-09-12 | 古河マグネットワイヤ株式会社 | チューブ成型体及びこれを用いたカテーテル |
WO2020153208A1 (ja) * | 2019-01-22 | 2020-07-30 | テルモ株式会社 | カテーテル |
JPWO2020153208A1 (ja) * | 2019-01-22 | 2021-11-25 | テルモ株式会社 | カテーテル |
JP7438142B2 (ja) | 2019-01-22 | 2024-02-26 | テルモ株式会社 | カテーテル |
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JP7320631B2 (ja) | 2019-06-15 | 2023-08-03 | マドゥロ ディスカバリー,エルエルシ― | カテーテル構造体 |
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WO2023233723A1 (ja) * | 2022-05-30 | 2023-12-07 | 朝日インテック株式会社 | カテーテル |
Also Published As
Publication number | Publication date |
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US8377035B2 (en) | 2013-02-19 |
US20040143239A1 (en) | 2004-07-22 |
JP4547374B2 (ja) | 2010-09-22 |
EP1583579B1 (en) | 2014-07-09 |
CA2513902C (en) | 2012-03-06 |
WO2004064890A3 (en) | 2004-12-29 |
CA2513902A1 (en) | 2004-08-05 |
EP1583579A2 (en) | 2005-10-12 |
WO2004064890A2 (en) | 2004-08-05 |
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