JP7547102B2 - 自己拡張型血管内医療用装置 - Google Patents
自己拡張型血管内医療用装置 Download PDFInfo
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Description
(1) 自己拡張型血管内医療用装置であって、
多構成要素アセンブリであって、
複数の支柱を備える自己拡張型外側ケージ構成要素と、
内部にチャネルを形成する前記自己拡張型外側ケージ構成要素内に配設された単一セル波形構成要素であって、前記単一セル波形構成要素の近位端が、近位接合部で前記自己拡張型外側ケージ構成要素に接続されている、単一セル波形構成要素と、を備える、多構成要素アセンブリ、を備える、自己拡張型血管内医療用装置。
(2) 前記自己拡張型外側ケージ構成要素が、複数の非対称に配置された支柱によって形成されている、実施態様1に記載の自己拡張型血管内医療用装置。
(3) 前記単一セル波形構成要素が、複数の接続されたセルを形成するメッシュであり、前記複数の接続されたセルは、寸法が異なり、振幅が変化する波形を形成する、実施態様1に記載の自己拡張型血管内医療用装置。
(4) 前記単一セル波形構成要素は、寸法が均一であり、振幅が変化する波形を形成する複数の接続されたセルを形成するメッシュである、実施態様1に記載の自己拡張型血管内医療用装置。
(5) 前記自己拡張型外側ケージ構成要素及び単一セル波形構成要素の各々は、直径が異なり、単一の切断管又は切断パターンから形成可能であり、前記単一の切断管又は切断パターンが、前記自己拡張型外側ケージ構成要素の一次支柱を形成するように、一次直径に拡張可能であり、一方、前記単一の切断管又は切断パターンが、前記単一セル波形構成要素の二次支柱を形成するように、前記一次直径よりも小さい二次直径に拡張可能である、実施態様1に記載の自己拡張型血管内医療用装置。
(7) 前記遠位破片保護部材が、複数の相互接続された支柱又は相互に絡み合ったストランドの塊を備えるメッシュである、実施態様6に記載の自己拡張型血管内医療用装置。
(8) 前記自己拡張可能な外側ケージの前記遠位端が、前記遠位破片保護部材に取り付けられており、一方、前記単一セル波形構成要素の前記遠位端が、前記遠位破片保護部材に接続されていない、実施態様6に記載の自己拡張型血管内医療用装置。
(9) 前記単一セル波形構成要素の前記遠位端が、前記遠位破片保護部材に取り付けられており、一方で、前記自己拡張可能な外側ケージの前記遠位端が、前記遠位破片保護部材に接続されていない、実施態様6に記載の自己拡張型血管内医療用装置。
(10) 前記単一セル波形構成要素が、前記単一セル波形構成要素を通って長手方向に延在する中心軸を中心にねじれたパターンで複数の接続されたセルを形成するメッシュである、実施態様6に記載の自己拡張型血管内医療用装置。
多構成要素アセンブリであって、
複数の支柱を備える、自己拡張型外側ケージ構成要素と、
内部に円筒形チャネルを形成する前記自己拡張型外側ケージ構成要素内に配設された内側構成要素であって、前記内側構成要素の近位端が、近位接合部で前記自己拡張型外側ケージ構成要素に接続されている、内側構成要素と、を備える、多構成要素アセンブリを備え、
前記自己拡張型外側ケージ構成要素及び前記内側構成要素によって形成される前記円筒形チャネルの円形断面の各々は、直径が異なり、単一の切断管又は切断パターンから形成可能であり、前記単一の切断管又は切断パターンが、前記自己拡張型外側ケージ構成要素を形成する一次支柱の拡張可能な直径に等しい一次直径を有し、一方、前記単一の切断管又は切断パターンが、前記内側構成要素によって形成された前記円筒形チャネルの前記円形断面を形成するように、前記一次直径よりも小さい二次直径にヒートセット可能である、自己拡張型血管内医療用装置。
(12) 自己拡張型血管内医療用装置であって、
多構成要素アセンブリであって、
複数の支柱を備える、自己拡張型外側ケージ構成要素と、
前記自己拡張型外側ケージ構成要素内に配設された波形構成要素と、
拡張された遠位テーパ状端部メッシュセクションと、を備える、多構成要素アセンブリを備え、
前記拡張された遠位テーパ状端部メッシュセクションが、前記波形構成要素に直接取り付けられており、前記拡張された遠位テーパ状端部メッシュセクションと前記自己拡張型外側ケージ構成要素との間に直接的な物理的接続がない、自己拡張型血管内医療用装置。
(13) 前記自己拡張型外側ケージ構成要素が、一次直径を有し、前記波形構成要素が、前記一次直径よりも小さい二次直径を有する円形断面の波形を形成する、実施態様12に記載の自己拡張型血管内医療用装置。
(14) 前記一次直径が、約0.36mm~約2.0mmであり、前記二次直径が、約0.15mmである、実施態様13に記載の自己拡張型血管内医療用装置。
(15) 自己拡張型血管内医療用装置であって、
複数の支柱を備える、自己拡張型外側ケージ構成要素を備え、前記複数の支柱の各々が、前記拡張可能な外側ケージの外径の一部を形成する湾曲した外側表面と、前記自己拡張型外側ケージの内径の一部を形成する湾曲した内側表面と、を有する、楔形径方向断面を有し、前記湾曲した外側表面の一部分が、除去されている、自己拡張型血管内医療用装置。
(17) 前記湾曲した外側表面の除去された前記一部分が、少なくとも1つの角度付けられた角部面取り切断部である、実施態様15に記載の自己拡張型血管内医療用装置。
(18) 自己拡張型血管内医療用装置であって、
複数の支柱を備える、所望のパターンに切断された、反転した凹状シート又はプレートを備え、前記反転した切断管の前記複数の支柱の各々が、凹状の内側径方向表面で最も広く、かつ凹状の外側径方向表面に達するまでテーパ状に小さくなる、楔形径方向断面を有する、自己拡張型血管内医療用装置。
(19) 自己拡張型血管内医療用装置の自己拡張型外側ケージ構成要素を製造するための方法であって、
凹状シート又はプレートに所望のパターンを切断する工程と、
切断された前記凹状シート又はプレートを反転させる工程と、
反転された前記切断された凹状シート又はプレートを、前記反転された切断された凹状シート又はプレートの対向する自由縁部を互いに向かって引き寄せて、所定の直径のマンドレルの周囲に形状設定して、複数の支柱を備える径方向ステントを形成する工程と、を含み、前記複数の支柱の各々が、凹状の内側径方向表面で最も広く、凹状の外側径方向表面に達するまでテーパ状に小さくなる楔形径方向断面を有する、方法。
(20) 前記複数の支柱の各々の前記楔形径方向断面が、前記楔形径方向断面の前記凹状の内側径方向表面における内径に沿った曲線の第1の測定された長さを表す最長弧長と、前記楔形径方向断面の前記凹状の外側径方向表面における外径に沿った、別の曲線の第2の測定された長さを表す最短弧長と、を有する、実施態様19に記載の方法。
(22) 弧長が、(i)外径に沿った前記楔形径方向断面の前記凹状の外側径方向表面に沿った最小接触表面積と、(ii)内径に沿った前記楔形径方向断面の前記凹状の内側径方向表面に沿った最大接触表面積と、を有する、実施態様19に記載の方法。
Claims (15)
- 自己拡張型血管内医療用装置であって、
多構成要素アセンブリであって、
複数の支柱を備える自己拡張型外側ケージ構成要素と、
直線状に延在するチャネルを内部に形成し、前記自己拡張型外側ケージ構成要素内に配設された、波形構成要素であって、前記波形構成要素は、複数のセルを画定する単一構成要素であり、前記波形構成要素の近位端が、近位接合部で前記自己拡張型外側ケージ構成要素に接続されている、波形構成要素と、を備える、多構成要素アセンブリ、を備え、
前記複数のセル間の接続点は、前記波形構成要素が形成する波形の各波のピーク及び谷に位置付けられる、自己拡張型血管内医療用装置。 - 前記自己拡張型外側ケージ構成要素が、複数の非対称に配置された前記支柱によって形成されている、請求項1に記載の自己拡張型血管内医療用装置。
- 前記複数のセルは、互いに寸法が異なり、前記波形構成要素は、振幅が変化する前記波形を形成する、請求項1に記載の自己拡張型血管内医療用装置。
- 前記複数のセルは、互いに寸法が均一であり、前記波形構成要素は、振幅が変化する前記波形を形成する、請求項1に記載の自己拡張型血管内医療用装置。
- 前記波形構成要素内の前記複数のセルは各々、複数の隣接する支柱によって画定されるか、形成されるか、若しくは包囲される空間、又は領域である、請求項1に記載の自己拡張型血管内医療用装置。
- 前記自己拡張型外側ケージ構成要素及び前記波形構成要素の各々は、単一の切断管から形成可能であり、前記自己拡張型外側ケージ構成要素を形成するための前記単一の切断管と前記波形構成要素を形成するための前記単一の切断管とは、互いに直径が異なり、前記自己拡張型外側ケージ構成要素を形成するための前記単一の切断管が、前記自己拡張型外側ケージ構成要素の前記支柱を形成するように、一次直径に拡張可能であり、一方、前記波形構成要素を形成するための前記単一の切断管が、前記波形構成要素内の前記支柱を形成するように、前記一次直径よりも小さい二次直径に拡張可能である、請求項5に記載の自己拡張型血管内医療用装置。
- 前記自己拡張型外側ケージ構成要素が、前記自己拡張型外側ケージ構成要素の遠位端上に配設された遠位破片保護部材を有する、請求項1に記載の自己拡張型血管内医療用装置。
- 前記遠位破片保護部材が、複数の相互接続された支柱又は相互に絡み合ったストランドの塊を備えるメッシュである、請求項7に記載の自己拡張型血管内医療用装置。
- 前記自己拡張型外側ケージ構成要素の前記遠位端が、前記遠位破片保護部材に取り付けられており、一方、前記波形構成要素の遠位端が、前記遠位破片保護部材に接続されていない、請求項7に記載の自己拡張型血管内医療用装置。
- 前記波形構成要素の遠位端が、前記遠位破片保護部材に取り付けられており、一方で、前記自己拡張型外側ケージ構成要素の前記遠位端が、前記遠位破片保護部材に接続されていない、請求項7に記載の自己拡張型血管内医療用装置。
- 前記波形構成要素が、前記波形構成要素を通って長手方向に延在する中心軸を中心にねじれたパターンを形成する、請求項7に記載の自己拡張型血管内医療用装置。
- 前記複数のセルは、直接接続された一連のセルを構成しており、前記一連のセルは各々、2つの交点で相互接続された2本の支柱によって画定されている、請求項1に記載の自己拡張型血管内医療用装置。
- 前記複数のセルは、前記接続点でのみ互いに接続されている、請求項1に記載の自己拡張型血管内医療用装置。
- 前記複数のセルは、第1のセル、第2のセル、および第3のセルを含み、前記第1のセルの近位端に前記第2のセルの遠位端が接続されて前記ピークに位置付けられた前記接続点を形成し、前記第1のセルの遠位端に前記第3のセルの近位端が接続されて前記谷に位置付けられた前記接続点を形成している、請求項1に記載の自己拡張型血管内医療用装置。
- 前記複数のセルは、第1のセルおよび第2のセルを含み、前記第1のセルの近位端に前記第2のセルの遠位端が接続されており、前記チャネルは、長手方向に延在する中心軸を画定し、前記中心軸は、前記第1のセルと前記第2のセルとを貫通して延在する、請求項1に記載の自己拡張型血管内医療用装置。
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US20240115279A1 (en) | 2024-04-11 |
US20210007757A1 (en) | 2021-01-14 |
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EP3763306B1 (en) | 2024-01-10 |
CN112206034A (zh) | 2021-01-12 |
US11266427B2 (en) | 2022-03-08 |
ES2970152T3 (es) | 2024-05-27 |
KR20210008309A (ko) | 2021-01-21 |
US11883046B2 (en) | 2024-01-30 |
JP2021013742A (ja) | 2021-02-12 |
US20220142660A1 (en) | 2022-05-12 |
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