JP2021525581A - チャネル内の拘束を有するステントグラフトシステム及びその方法 - Google Patents
チャネル内の拘束を有するステントグラフトシステム及びその方法 Download PDFInfo
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Abstract
Description
この出願は、引用によって本明細書にその内容全体が組み込まれている2018年5月31日出願の米国仮特許出願第62/678,961号からの優先権を主張するものである。
2a グラフト材料の第1の層
5a、5b ステント部材
6a、6b 減径ベルト
12 解除ワイヤ
Claims (20)
- グラフト材料の第1の層と、
グラフト材料の第2の層と、
前記グラフト材料の第1の層と前記グラフト材料の第2の層の間に位置付けられたステント部材と、
前記グラフト材料の第2の層と前記グラフト材料の第1の層の間でかつ前記ステント部材の少なくとも一部分の周りでチャネルに少なくとも部分的に位置付けられた減径ベルトと、
を含むことを特徴とするステントグラフトシステム。 - 前記グラフト材料の第2の層は、該グラフト材料の第2の層と前記グラフト材料の第1の層の間に前記チャネルを提供する形状を有する、
ことを特徴とする請求項1に記載のステントグラフトシステム。 - 前記減径ベルトは、前記ステント部材が完全に拡張された時に該ステント部材の円周よりも短いが該ステント部材が圧縮状態にある時に該ステント部材の円周よりも長い長さを有する、
ことを特徴とする請求項1に記載のステントグラフトシステム。 - 前記減径ベルトは、ループを含み、該減径ベルトの各端部に該ループのうちの対応するループがある、
ことを特徴とする請求項1に記載のステントグラフトシステム。 - 前記減径ベルトの前記ループを通過する解除ワイヤ、
を更に含むことを特徴とする請求項4に記載のステントグラフトシステム。 - 前記ステント部材は、圧縮状態から復元状態まで半径方向に拡張可能であり、
前記減径ベルトは、前記ステント部材が前記圧縮状態から前記復元状態まで拡張することを可能にするように解除可能である、
ことを特徴とする請求項1に記載のステントグラフトシステム。 - 前記グラフト材料の第1の層と前記グラフト材料の第2の層の間に位置付けられた第2のステント部材と、
前記グラフト材料の第2の層と前記グラフト材料の第1の層の間でかつ前記第2のステント部材の少なくとも一部分の周りで第2のチャネルに少なくとも部分的に位置付けられた第2の減径ベルトと、
を更に含むことを特徴とする請求項1に記載のステントグラフトシステム。 - 前記グラフト材料の第2の層は、該グラフト材料の第2の層と前記グラフト材料の第1の層の間に前記第2のチャネルを提供する形状を有する、
ことを特徴とする請求項7に記載のステントグラフトシステム。 - 前記減径ベルトは、ループを含み、前記第2の減径ベルトもループを含み、
ステントグラフトシステムが、前記減径ベルトの前記ループを通過するかつ前記第2の減径ベルトの前記ループを通過する解除ワイヤを更に含む、
ことを特徴とする請求項7に記載のステントグラフトシステム。 - 前記ステント部材と前記第2のステント部材の間の前記グラフト材料の第2の層内のひだ、
を更に含むことを特徴とする請求項7に記載のステントグラフトシステム。 - ステントグラフトシステムを製造する方法であって、
複数のステント部材をグラフト材料の第1の層上に置く段階と、
少なくとも部分的に前記複数のステント部材のうちの各ステント部材の周りに複数のスペーサのうちのそれぞれのスペーサを置く段階と、
前記複数のスペーサのうちの各スペーサの少なくとも一部分をグラフト材料の第2の層を使用して封入する段階と、
前記グラフト材料の第2の層と前記グラフト材料の第1の層の間の前記複数のステント部材のうちの各ステント部材の周りにそれぞれのチャネルを残すために該グラフト材料の第2の層内のそれぞれの開口部から前記複数のスペーサの各々を除去する段階と、
を含むことを特徴とする方法。 - 前記複数のスペーサのうちの各スペーサがチューブを含む、
ことを特徴とする請求項11に記載の方法。 - 少なくとも部分的に前記複数のステント部材のうちの各ステント部材の周りで前記それぞれのチャネルに複数の減径ベルトのうちのそれぞれの減径ベルトを置く段階、
を更に含むことを特徴とする請求項11に記載の方法。 - 前記複数の減径ベルトのうちの各減径ベルトが糸を含む、
ことを特徴とする請求項13に記載の方法。 - 前記複数の減径ベルトの各々がループを含み、
方法が、前記複数のステント部材を半径方向圧縮状態に保持するために前記複数の減径ベルトのうちの各々の前記ループを通して解除ワイヤを置く段階を更に含む、
ことを特徴とする請求項13に記載の方法。 - 前記減径ベルトは、該複数の減径ベルトのうちの各減径ベルトの端部が前記グラフト材料の第2の層内のそれぞれの開口部から延びるように位置決めされる、
ことを特徴とする請求項13に記載の方法。 - 前記グラフト材料の第2の層を軸線方向に圧縮して該グラフト材料の第2の層にひだを形成する段階と、
前記グラフト材料の第2の層内の前記ひだのための折り目を固化するために熱を印加する段階と、
前記ひだが熱的に固化された後に前記グラフト材料の第2の層を引っ張って該グラフト材料の第2の層を軸線方向に復元する段階と、
を更に含むことを特徴とする請求項11に記載の方法。 - 前記熱を印加する段階は、前記グラフト材料の第2の層をオーブンで焼成して該グラフト材料の第2の層内の前記ひだのための前記折り目を固化する段階を含む、
ことを特徴とする請求項17に記載の方法。 - グラフト材料の第1の層と、グラフト材料の第2の層と、複数のステント部材と、複数の減径ベルトとを含むステントグラフトシステムを使用する方法であって、
前記グラフト材料の第2の層と前記グラフト材料の第1の層の間の対応するチャネルに少なくとも部分的に位置付けられた前記複数の減径ベルトのうちの対応する減径ベルトによって前記複数のステント部材のうちの各ステント部材が圧縮状態に保持された状態で前記ステントグラフトシステムを血管に位置決めする段階と、
前記複数の減径ベルトを解除して前記複数のステント部材が前記圧縮状態から復元状態まで拡張することを可能にする段階と、
を含むことを特徴とする方法。 - 前記複数の減径ベルトを前記解除する段階は、解除ワイヤを該複数の減径ベルトのうちの1又は2以上のループを通してかつそこから引っ張る段階を含む、
ことを特徴とする請求項19に記載の方法。
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PCT/US2019/034565 WO2019232155A1 (en) | 2018-05-31 | 2019-05-30 | Stent graft systems with restraints in channels and methods thereof |
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