JP6071244B2 - ステント及びステントグラフト - Google Patents
ステント及びステントグラフト Download PDFInfo
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- JP6071244B2 JP6071244B2 JP2012104347A JP2012104347A JP6071244B2 JP 6071244 B2 JP6071244 B2 JP 6071244B2 JP 2012104347 A JP2012104347 A JP 2012104347A JP 2012104347 A JP2012104347 A JP 2012104347A JP 6071244 B2 JP6071244 B2 JP 6071244B2
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- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Veterinary Medicine (AREA)
- Vascular Medicine (AREA)
- Public Health (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Gastroenterology & Hepatology (AREA)
- Pulmonology (AREA)
- Optics & Photonics (AREA)
- Physics & Mathematics (AREA)
- Prostheses (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Description
本願は、2011年4月28日に出願された“1以上のトリガーワイヤと共に使用するためのステント構造”という名称の米国仮特許出願第61/480,107号に基づく優先権を主張しており且つ2011年12月12日に出願された“1以上のトリガーワイヤと共に使用するためのステント構造”という名称の米国仮特許出願第61/509,590号に基づく優先権も主張している。これらの出願の開示内容の両方はこれに言及することにより、それらの全体が参考として本明細書に組み込まれている。
22a 第一の近位端、 22b 第二の近位端、
24 遠位端、 30 端部領域、
31 穴、 39 頂点、
40 近位の頂端の端部領域、 41 隙間、
42 棘状部、 50 移行領域、
51 隙間、 52 棘状部、
57 ストラット部、 58 ストラット部、
60 端部領域、 61 穴、
62a 遠位の頂端、 62b 遠位の頂端、
67 第一のストラット部、 68 第二のストラット部、
69 頂端、 80 押し込み部材、
81 押し込み部材の主本体部、 84 トリガーワイヤ、
120 ステント、 122 近位端、
122a 近位の頂端、 122b 近位の頂端、
124 遠位端、 130 端部領域、
131 第一の穴、 139 近位の頂点、
140 端部領域、 141 隙間、
142 棘状部、 145 第二の穴、
147 第一の領域、 148 第二の領域、
149 凹状部分、 150 遠位の移行領域、
151 隙間、 152 棘状部、
157 ストラット部、 158 ストラット部、
160 ステントの遠位の端部領域、 161 縫合用の穴、
162a 遠位の頂端、 162b 遠位の頂端、
169 遠位の頂点、 184 トリガーワイヤ、
190 画像形成用の穴、 220 ステント、
220’ ステント、 250 移行領域、
250’ 移行領域、 251 隙間、
252 棘状部、 270 ステントの近位領域、
290 画像形成用の穴、 291 画像形成部材、
292 第一の縫合用の穴、 298 切欠き領域、
300 グラフト材、 304 グラフト材の近位の端縁、
320,320’ ステント、 322a,322a’ 近位の頂端、
322b,322b’ 近位の頂端、
330,330’ 端部領域、 331,331’ 第一の穴、
333 凹状部分、 340,340’ 端部領域、
342 棘状部、 344 突出領域、
345,345’ 第二の穴、 400,400’ ステントグラフト、
410 第一のステント、 412 近位の頂端、
414 遠位の頂端、 417 ストラット部、
418 ストラット部、 420,420’ 第二のステント、
422a 近位の頂端、 422b,422b’ 近位の頂端、
430 端部領域、 431 第一の穴、
441 隙間、 442 棘状部、
445 第二の穴、 447 第一の領域、
448 第二の領域、 449 凹状部分、
450 移行領域、 451 隙間、
452 棘状部、 457 ストラット部、
458 ストラット部、 460 遠位の頂端、
461 縫合用の穴、 475 縫合糸、
490 画像形成用の穴、 491 画像形成部材、マーカー
492 グラフト
Claims (9)
- 医療処置において使用するためのステントであって、
該ステントの近位端に設けられている一連の近位の頂端と、
該ステントの遠位端に設けられている一連の遠位の頂端と、
前記一連の近位の頂端と前記一連の遠位の頂端との間に設けられている少なくとも1つの画像形成要素と、
該画像形成要素の遠位側の位置において該ステントの表面に設けられ且つ該ステントの一部分をグラフト材に結合する縫合糸を受け入れるようになされている第一の縫合用の穴と、を備えており、
前記一連の遠位の頂端と前記第一の縫合用の穴とを備えている該ステントの遠位領域が、前記グラフト材と重なり、
前記一連の近位の頂端を有している該ステントの近位領域が前記グラフト材を越えて近位方向に配置され、
前記近位の頂端の各々と前記遠位の頂端の各々との間に配置されている複数のストラット部であって、互いに隣接しているストラット部が前記近位の頂端と前記遠位の頂端との間の移行領域で結合されて、当該ステントが圧縮状態から配備状態へ拡張することを可能とする複数のストラット部を更に備えており、
前記画像形成要素と前記第一の縫合用の穴とが、各々、前記移行領域に形成されている、ことを特徴とするステント。 - 前記画像形成要素が、前記グラフト材の近位端縁の終端と一致する位置に配置されている、ことを特徴とする請求項1に記載のステント。
- 前記グラフト材と重なる該ステントの前記遠位領域が、該ステントの長手方向の長さの約20パーセント〜約45パーセントを構成しており、前記グラフト材を越えて近位方向に配置される前記近位領域が、前記ステントの長手方向長さの約55パーセント〜約80パーセントを構成している、ことを特徴とする請求項1に記載のステント。
- 前記遠位の頂端の各々が、前記遠位の頂端を前記グラフト材に結合する縫合糸を受け入れるようになされている第二の縫合用の穴を備えている端部領域を備えている、ことを特徴とする請求項1に記載のステント。
- 前記画像形成用の穴の近位側の位置において前記移行領域の表面に一体的に形成されている少なくとも1つの棘状部を更に備えている、ことを特徴とする請求項1に記載のステント。
- 前記画像形成要素の近位側の位置において前記移行領域内に設けられた縮径部を構成する切欠き領域を更に備えており、該切欠き領域は、該ステントの近位領域が径方向へ広がり易くするようになされている、ことを特徴とする請求項1に記載のステント。
- 前記一連の近位の頂端が交互に配置された第一の近位の頂端と第二の近位の頂端とからなり、前記第一の近位の頂端の各々が第一の穴を備えている端部領域を備えており、前記第二の近位の頂端の各々が第二の穴を備えており、
前記第一の近位の頂端のうちの少なくとも1つが、該ステントの給送中に、前記第一及び第二の穴に通されて配置される単一のトリガーワイヤによって、隣接する第二の近位の頂端と共に一斉に拘束される、ことを特徴とする請求項1に記載のステント。 - 前記第一の近位の頂端に形成されている前記第一の穴が、給送状態において、前記第二の近位の頂端に形成されている第二の穴に長手方向及び周方向で重なっている、ことを特徴とする請求項7に記載のステント。
- 前記第一の近位の頂端の前記第一の穴の遠位側の位置に形成されている凹状部分を更に備えており、前記第二の近位の頂端は、前記第一の近位の頂端に向かって引っ張られて前記第一の近位の頂端の前記凹状部分内で入れ子状となる構造とされており、前記第一及び第二の穴は、該ステントの給送中に、単一のトリガーワイヤが前記第一及び第二の穴に通されて配置されたときに、互いに実質的に長手方向で整合された状態に配置される、ことを特徴とする請求項7に記載のステント。
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