JP2008522721A - 分岐した管のための突出した分岐部を備えるステント - Google Patents
分岐した管のための突出した分岐部を備えるステント Download PDFInfo
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- JP2008522721A JP2008522721A JP2007545483A JP2007545483A JP2008522721A JP 2008522721 A JP2008522721 A JP 2008522721A JP 2007545483 A JP2007545483 A JP 2007545483A JP 2007545483 A JP2007545483 A JP 2007545483A JP 2008522721 A JP2008522721 A JP 2008522721A
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- stent
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Abstract
Description
Claims (19)
- 分岐ステントであって、
内径及び外径を有するとともに前記内径と前記外径との間に壁部を定義する管状部材と、前記壁部はあるパターンを定義する幾何学的形態を有することと、
前記管状構造体の壁部に形成されるとともに前記壁部のパターンを遮断する拡張可能な分岐構造体と、前記拡張可能な分岐構造体は前記管状部材に連結される第一のリングと、前記第一のリングに連結される第二のリングと、前記第二のリングに連結される第三のリングとを有することと、
を含む分岐ステントにおいて、
前記拡張可能な分岐構造体は先端部及び基端部を含み、少なくとも一つの部分先端リングが前記先端部にて前記第一のリングと連結され、少なくとも一つの部分先端リングが前記基端部にて前記第一のリングと連結され、かつ前記リングと前記基端部の部分リングと前記先端部の部分リングとが格子部を形成し、
前記第三のリングは中央分岐開口部を実質的に包囲するとともに同開口部を定義し、
前記拡張可能な分岐構造体は拡張していない形態から拡張した形態まで移動可能であり、前記拡張していない形態において前記拡張可能な分岐構造体は前記壁部に沿って配置され、かつ前記拡張した形態において前記拡張可能な分岐構造体は前記管状部材から外向きに延びる、分岐ステント。 - 前記管状部材は長手軸を有し、かつ前記拡張可能な分岐構造体は前記拡張した形態において前記長手軸とほぼ直交するように配置される、請求項1に記載のステント。
- 前記管状部材は前記長手軸に沿って配置された複数の波状リングを含み、前記波状リングはコネクタにより連結される、請求項1に記載のステント。
- 前記第一のリング、前記第二のリング及び前記第三のリングは前記拡張していない形態にて前記長手軸とほぼ直交するように配置される共通の軸を有する、請求項1に記載のステント。
- 前記分岐構造体は遷移構造体を含む、請求項1に記載のステント。
- 前記遷移構造体は不連続部を含む、請求項5に記載のステント。
- 前記第一のリングは前記不連続部に連結され、前記拡張可能な分岐構造体の外側にある壁部のパターンの一部に前記第一のリングを連結する、請求項6に記載のステント。
- 前記第一のリング、前記第二のリング及び前記第三のリングはコネクタにより連結される、請求項5に記載のステント。
- 前記コネクタはほぼ波状の湾曲部材である、請求項8に記載のステント。
- 前記コネクタはほぼ直線状部材である、請求項8に記載のステント。
- 第一のリング、前記第二のリング及び前記第三のリングはほぼ連続した波状の湾曲部材であり、かつ波のピークを含む、請求項3に記載のステント。
- 前記ステントは生体分解性材料からなる、請求項1に記載のステント。
- 前記ステントはある材料からなり、生体分解性の材料で被覆されている、請求項1に記載のステント。
- 前記ステントは生体分解性材料であって同材料内に薬物が埋め込まれている材料からなるか或いは同材料で被覆されており、それにより同生体分解性材料の分解時に前記薬物が制御可能に放出される、請求項1に記載のステント。
- 前記生体分解性材料は、ポリグリコール酸、ポリ乳酸、ポリグリコール酸とポリ乳酸のコポリマー、ポリオルトエステル、ポリアミノ酸及びポリ無水物のうちの少なくとも一つである、請求項12に記載のステント。
- 前記生体分解性材料は、ポリグリコール酸、ポリ乳酸、ポリグリコール酸とポリ乳酸のコポリマー、ポリオルトエステル、ポリアミノ酸及びポリ無水物のうちの少なくとも一つである、請求項13に記載のステント。
- 前記薬物は前記拡張可能な分岐構造体上の材料中にある量にて埋め込まれており、別の量にて前記管状部材の残りの部分に埋め込まれている、請求項14に記載のステント。
- 前記第一のリング、前記第二のリング及び前記第三のリングは同心円状にある、請求項1に記載のステント。
- 前記第一のリングは少なくとも一つのセルを有するコネクタにより管状部材に連結される、請求項1に記載のステント。
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US11/010,730 US8298280B2 (en) | 2003-08-21 | 2004-12-14 | Stent with protruding branch portion for bifurcated vessels |
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EP (1) | EP1824415B1 (ja) |
JP (1) | JP4913069B2 (ja) |
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US20050102023A1 (en) | 2005-05-12 |
WO2006065398A1 (en) | 2006-06-22 |
JP4913069B2 (ja) | 2012-04-11 |
EP1824415A1 (en) | 2007-08-29 |
EP1824415B1 (en) | 2011-07-13 |
ATE515991T1 (de) | 2011-07-15 |
US8298280B2 (en) | 2012-10-30 |
CA2585942A1 (en) | 2006-06-22 |
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