JP2008507349A - バルーンによる拡張が可能で変形回復性能を有するステント装置 - Google Patents
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- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
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Abstract
Description
Claims (47)
- 筒状部材を構成するように配置され、該筒状部材が収縮時の直径から拡張時の直径まで拡張できるように摺動可能に相互に接続されている、少なくとも2つの実質的に変形しない要素を有し、
前記変形しない要素は、変形回復性能を与えるように形状記憶材料から作られている、
バルーンによる拡張が可能で変形回復性能を有するステント。 - 前記変形しない要素は、治療箇所での展開後、前記筒状部材を前記拡張時の直径に維持するロック機構をさらに有している、請求項1に記載のバルーンによる拡張が可能で変形回復性能を有するステント。
- 前記変形しない要素は、治療箇所での展開時に、膨張可能なバルーンの半径方向の拡張によって解除されるまで、前記筒状部材を前記収縮時の直径に維持する拘束機構をさらに有している、請求項1に記載のバルーンによる拡張が可能で変形回復性能を有するステント。
- 前記ロック機構は、前記変形しない要素の少なくともいずれかに沿って配置された複数の歯を有し、該複数の歯は、一方向だけに摺動できるように、隣接する該変形しない要素の係合部材と係合するようにされている、請求項2に記載のバルーンによる拡張が可能で変形回復性能を有するステント。
- 前記複数の歯は、前記筒状部材の拡張時に前記係合部材が該複数の歯の上を通過できるように、少なくとも1つの可撓性部材に沿って配置されている、請求項4に記載のバルーンによる拡張が可能で変形回復性能を有するステント。
- 前記歯は、前記筒状部材の拡張時に前記係合部材が前記歯の上を通過できるようにたわむことができる、請求項4に記載のバルーンによる拡張が可能で変形回復性能を有するステント。
- 前記複数の歯は、前記筒状部材を選択可能な拡張時の直径に維持することができる、請求項4に記載のバルーンによる拡張が可能で変形回復性能を有するステント。
- 前記拘束機構は、前記変形しない要素の少なくとも一方に沿って配置された少なくとも1つの押さえつけタブを有し、該押さえつけタブは、隣接する該変形しない要素上に配置された捕捉部の中に解放可能に保持されるようにされている、請求項3に記載のバルーンによる拡張が可能で変形回復性能を有するステント。
- 前記拘束機構は、前記変形しない要素の少なくとも一方に沿って配置された少なくとも1つのフックを有し、該フックは、前記治療箇所への送達時には、隣接する該変形しない要素のループ形状の部材の中に解放可能に保持されるようにされている、請求項3に記載のバルーンによる拡張が可能で変形回復性能を有するステント。
- 前記筒状部材は治療箇所で血管壁に治療剤を送達するようにされている、請求項1に記載のバルーンによる拡張が可能で変形回復性能を有するステント。
- 前記治療剤は抗増殖剤である、請求項10に記載のバルーンによる拡張が可能で変形回復性能を有するステント。
- 治療箇所への送達時に前記筒状部材を包囲するように大きさが設定されている後退可能なシースをさらに有している、請求項1に記載のバルーンによる拡張が可能で変形回復性能を有するステント。
- 請求項1に記載のバルーンによる拡張が可能で変形回復性能を有するステントと、
遠位端部に配置された膨張可能なバルーンを備えたカテーテルと、
を有し、
前記ステントは、治療箇所への送達時には前記膨張可能なバルーンの外側表面に沿って設けられている、ステント送達システム。 - 形状記憶物質から作られ、収縮時の直径から拡張時の直径まで拡張可能にされた筒状部材を実現するように円筒形状に巻かれるようにされた、実質的に平坦なシートと、
前記筒状部材を、治療箇所での展開後、前記拡張時の直径に維持するように前記筒状部材に沿って設けられたロック機構と、
前記治療箇所での展開時に、膨張可能なバルーンの半径方向への拡張によって解放されるまで、前記筒状部材を前記収縮時の直径に維持するように前記筒状部材に沿って設けられた拘束機構と、
を有する、バルーンによる拡張が可能で変形回復性能を有するステント。 - 前記ロック機構は、第1の端部に沿った複数の歯と、第2の端部に沿った係合部材と、を有し、該係合部材は該歯と摺動可能に係合するようにされている、請求項14に記載のバルーンによる拡張が可能で変形回復性能を有するステント。
- 前記拘束機構は、第1の端部に沿った押さえつけタブと、第2の端部に沿った凹部と、を有し、該凹部は該押さえつけタブを捕捉するようにされている、請求項14に記載のバルーンによる拡張が可能で変形回復性能を有するステント。
- 前記筒状部材は前記治療箇所で血管壁に治療剤を送達するようにされている、請求項14に記載のバルーンによる拡張が可能で変形回復性能を有するステント。
- ピボット運動可能に互いに接続され、形状記憶材料から作られている一連のリンクを備えた筒状部材であって、該ピボット運動可能に接続されたリンクは該筒状部材を収縮時の直径から拡張時の直径まで調整できるようにされている筒状部材と、
治療箇所での展開後に、前記筒状部材を前記拡張時の直径に維持するようにされたロック機構と、
前記治療箇所での展開時に、膨張可能なバルーンの半径方向への拡張によって解放されるまで、前記筒状部材を前記収縮時の直径に維持するようにされた拘束機構と、
を有する、バルーンによる拡張が可能で変形回復性能を有するステント。 - 前記筒状部材は前記治療箇所で血管壁に治療剤を送達するようにされている、請求項18に記載のバルーンによる拡張が可能で変形回復性能を有するステント。
- 摺動可能に相互に接続され、生体適合性のある材料から作られている一連の要素を有し、収縮時の直径から拡張時の直径まで拡張するようにされた筒状部材と、
治療箇所で展開後に、前記筒状部材を前記拡張時の直径に維持する、前記相互に接続された要素に沿って配置されたロック機構と、
前記治療箇所での展開時に、膨張可能なバルーンの半径方向への拡張によって解放されるまで、前記筒状部材を前記収縮時の直径に維持する、前記相互に接続された要素に沿って配置された拘束機構と、
を有する、拡張可能なステント。 - 前記生体適合性のある材料は血管壁に送達する治療剤を含んでいる、請求項20に記載の拡張可能なステント。
- 拡張可能なステントであって、
各々が実質的に筒状部材を構成し、収縮状態から拡張状態まで調整可能な第1および第2の拡張可能なモジュールと、
前記第1および第2の拡張可能なモジュールを1つに結合する、可撓性を有する結合部と、
前記第1および第2の拡張可能なモジュールの少なくとも一方に沿って設けられ、治療箇所への送達時に前記ステントを前記収縮状態に維持する拘束機構と、
を有し、
前記拡張可能なモジュールの各々は実質的に独立して拡張可能である、拡張可能なステント。 - 前記拡張可能なモジュールの少なくとも一方は形状記憶材料から作られている、請求項22に記載の拡張可能なステント。
- 前記拡張可能なモジュールの少なくとも一方は、前記ステントが前記収縮状態から前記拡張状態へ拡張できるように摺動可能に相互に接続された、実質的に変形しない複数の要素を有している、請求項22に記載の拡張可能なステント。
- 前記複数の要素の摺動可能な相互接続によって該要素の一方向だけの動きが可能となり、それによって、展開後に前記ステントを前記拡張状態に維持するロック機構が実現される、請求項24に記載の拡張可能なステント。
- 前記各要素は斜めを向いた複数の歯とロックタブとをさらに有し、第1の要素の該ロックタブは、前記ロック機構を実現するように、第2の要素の該複数の歯の中に保持されている、請求項25に記載の拡張可能なステント。
- 前記各要素は押さえつけタブと少なくとも1つの捕捉部とをさらに有し、第1の要素の該押さえつけタブは、前記ロック機構を実現するように、第2の要素の該捕捉部の中に保持されている、請求項24に記載の拡張可能なステント。
- 前記押さえつけタブは、展開時に十分な半径方向の力を受けて該押さえつけタブが前記捕捉部から解放されるように変形可能である、請求項27に記載の拡張可能なステント。
- 前記捕捉部は、展開時に十分な半径方向の力を受けて前記押さえつけタブが該捕捉部から解放されるように変形可能である、請求項27に記載の拡張可能なステント。
- 前記各要素は、少なくとも1つのフックと、少なくとも1つのループと、をさらに有し、第1の要素の該フックは、前記ロック機構を実現するように、第2の要素の該ループの中に解放可能に保持されている、請求項24に記載の拡張可能なステント。
- 前記フックは、展開時に十分な半径方向の力を受けて前記ループから解放可能なように十分に変形可能にされている、請求項30に記載の拡張可能なステント。
- 前記各要素は前記ステントの周囲に沿って延びる第1および第2の可撓性部材をさらに有し、前記斜めを向いた複数の歯は該第1および第2の可撓性部材に沿って設けられている、請求項26に記載の拡張可能なステント。
- 前記ロックタブは、前記斜めを向いた歯と係合するように、前記第1および第2の可撓性部材の間の間隙に摺動可能に保持されている、請求項32に記載の拡張可能なステント。
- 前記ロックタブは、該ロックタブが前記可撓性部材の間を摺動して通過できるように、前記拡張可能なモジュールの拡張時に前記可撓性部材をたわませて互いに離すようにされている、請求項32に記載の拡張可能なステント。
- 生体適合性のある材料から作られ、第1の端部と第2の端部とを有し、収縮時の直径から拡張時の直径へ拡張するようにされ、該第1の端部と該第2の端部との間に配置された中央領域を有している筒状部材と、
治療箇所での展開後、前記筒状部材を前記拡張時の直径に維持するロック機構と、
前記治療箇所での展開時に、膨張可能なバルーンの半径方向への拡張によって解放されるまで、前記筒状部材を前記収縮時の直径に維持する拘束機構と、
を有し、
前記筒状部材の前記中央領域の少なくとも一部に、実質的に不浸透性の壁が形成されている、
血管を支持する拡張可能なステント。 - 前記不浸透性の壁は前記ステントの長さに沿って少なくとも2mm延びている、請求項35に記載の拡張可能なステント。
- 血液が分枝血管内に流れ込めるように、前記不浸透性壁を貫通して形成された開口をさらに有している、請求項35に記載の拡張可能なステント。
- バルーンによる拡張が可能で変形回復性能を有するステントであって、
前記ステントの長手軸に沿って延びる半径方向要素の第1の列と、
前記ステントの長手軸に沿って延びる半径方向要素の第2の列と、
を有し、
前記第1の列内の前記半径方向要素は、一連の拡張可能なモジュールを実現するように、前記第2の列内の前記半径方向要素に摺動可能に相互に接続され、該モジュールの各々は異なる直径に拡張可能である、
バルーンによる拡張が可能で変形回復性能を有するステント。 - 治療箇所での展開時に、膨張可能なバルーンの半径方向の拡張によって解除されるまで、前記拡張可能なモジュールを収縮時の直径に維持する拘束機構をさらに有している、請求項38に記載のバルーンによる拡張が可能で変形回復性能を有するステント。
- 前記第1および第2の列の各々の前記半径方向要素の少なくともいくつかは、可撓性を有する結合部材によって結合されている、請求項38に記載のバルーンによる拡張が可能で変形回復性能を有するステント。
- 前記第1および第2の列の各々の前記半径方向要素は、可撓性を有する結合部材によって、互い違いの配置で1つに結合されている、請求項38に記載のバルーンによる拡張が可能で変形回復性能を有するステント。
- バルーンによる拡張が可能で変形回復性能を有するステントであって、
前記ステントの長手軸に沿って延びる可撓性を有する第1の部材と、
前記ステントの長手軸に沿って延びる可撓性を有する第2の部材と、
を有し、
前記可撓性を有する第1および第2の部材は、筒状部材の少なくとも一部分を構成し、該筒状部材が収縮状態から拡張状態に拡張可能なように、複数の点に沿って摺動可能に相互に接続されている、
バルーンによる拡張が可能で変形回復性能を有するステント。 - 請求項13のステント送達装置を治療箇所に位置させるステップと、
前記ステントを前記収縮時の直径から前記拡張時の直径に拡張させるように前記膨張可能なバルーンを膨張させるステップと、
を有する、治療箇所で血管を治療する方法。 - 形状記憶材料から作られ摺動可能に相互に接続された一連の要素を各々が備えた第1および第2の拡張可能なモジュールであって、該相互に接続された要素は該モジュールを収縮時の直径から拡張時の直径に調整できるようにされている、第1および第2の拡張可能なモジュールと、
前記第1および第2の拡張可能なモジュールの各々に配置され、前記拡張可能なモジュールを前記拡張時の直径に維持するように、前記相互に接続された要素が一方向だけに摺動できるようにされたロック機構と、
前記第1および第2の拡張可能なモジュールの各々に配置され、治療箇所での展開時に、膨張可能バルーンの半径方向の拡張によって解放されるまで、前記拡張可能なモジュールを前記収縮時の直径に維持するようにされた拘束機構と、
前記第1および第2の拡張可能なモジュールを1つに結合する、可撓性を有する結合部と、
を有し、
前記拡張可能なモジュールの各々は実質的に独立して拡張可能である、
バルーンによる拡張が可能で変形回復性能を有するステント。 - バルーンによる拡張が可能なステントであって、
筒状部材を実現するように円筒形状に巻かれた少なくとも2つの実質的に平坦な要素であって、該平坦な要素の各々は前記筒状部材の円周の一部分を構成し、該要素の実質的な塑性変形無しに、該筒状部材が収縮時の直径から拡張時の直径に拡張できるように摺動可能に相互に接続された少なくとも2つの要素と、
前記筒状部材の周りに配置され、治療箇所での前記ステントの展開時に拡張するようにされた拡張可能なシースと、
を有する、バルーンによる拡張が可能なステント。 - 前記要素は、前記筒状部材に変形回復性能を与えるように、形状記憶材料から作られている、請求項45に記載のバルーンによる拡張が可能なステント。
- 前記拡張可能なシースは治療箇所で血管グラフトとして使用されるようにされている、請求項46に記載のバルーンによる拡張が可能なステント。
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US10/897,235 US7763065B2 (en) | 2004-07-21 | 2004-07-21 | Balloon expandable crush-recoverable stent device |
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WO2011021654A1 (ja) * | 2009-08-20 | 2011-02-24 | 学校法人久留米大学 | ステント |
JPWO2011021654A1 (ja) * | 2009-08-20 | 2013-01-24 | 学校法人 久留米大学 | ステント |
JP2011251117A (ja) * | 2010-05-07 | 2011-12-15 | Yamaguchi Univ | ポリマーステント |
JP2016519972A (ja) * | 2013-05-23 | 2016-07-11 | エス.ティー.エス メディカル リミテッドS.T.S. Medical Ltd. | 形状変化構体 |
US10953141B2 (en) | 2013-05-23 | 2021-03-23 | S.T.S. Medical Ltd. | Shape change structure |
US10966849B2 (en) | 2017-03-08 | 2021-04-06 | Yamaguchi University | Indwelling medical device having bistable structure in lumen organ |
Also Published As
Publication number | Publication date |
---|---|
EP1768613A1 (en) | 2007-04-04 |
US8512394B2 (en) | 2013-08-20 |
US7763065B2 (en) | 2010-07-27 |
CN1988858A (zh) | 2007-06-27 |
RU2388433C2 (ru) | 2010-05-10 |
AU2005269686A1 (en) | 2006-02-09 |
CA2573886A1 (en) | 2006-02-09 |
WO2006014699A1 (en) | 2006-02-09 |
US20060020324A1 (en) | 2006-01-26 |
CA2573886C (en) | 2014-09-23 |
US20100292773A1 (en) | 2010-11-18 |
RU2007105205A (ru) | 2008-08-27 |
AU2005269686B2 (en) | 2009-06-11 |
CN1988858B (zh) | 2011-02-16 |
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