JP2011502655A5 - - Google Patents

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JP2011502655A5
JP2011502655A5 JP2010533336A JP2010533336A JP2011502655A5 JP 2011502655 A5 JP2011502655 A5 JP 2011502655A5 JP 2010533336 A JP2010533336 A JP 2010533336A JP 2010533336 A JP2010533336 A JP 2010533336A JP 2011502655 A5 JP2011502655 A5 JP 2011502655A5
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本開示の上述の特徴および目的は、添付の図面と関連させて理解される以下の説明を参照してより明白となり、同様な参照数字は、同様な要素を指示する。
例えば、本発明は以下の項目を提供する。
(項目1)
急性脳卒中再疎通システムであって、該急性脳卒中再疎通システムは、
改良型神経学的医療用デバイスの脳脈管構造へのアクセスおよび脳脈管構造の中への配置に有効なガイドワイヤーを有するカテーテルベースのシステムと、
少なくとも1つの改良型神経学的医療用デバイスであって、該神経学的医療用デバイスは、近位端と遠位先端とを有する近位のステンレス鋼プッシャと、遠位のニチノールデバイスと、1つの小片のニチノールデバイスからなる群から選択された、神経学的医療用デバイスと
を組み合わせて備え、該少なくとも1つの改良型神経学的医療用デバイスは、該ガイドワイヤーの追跡可能性を改善するために該プッシャの中に組み込まれたポリマーライナーをさらに備え、それによって、該ポリマーライナーは、該ガイドワイヤーを導き、該ニチノールデバイスの中でのもつれを防ぐために該プッシャの該遠位先端を越えて延びる、急性脳卒中再疎通システム。
(項目2)
上記少なくとも1つの改良型神経学的デバイスは、上記ガイドワイヤーの追跡可能性を改善するために上記プッシャの中に組み込まれたポリマーライナーをさらに備え、それによって、該ポリマーライナーは、該ガイドワイヤーを導き、上記ニチノールデバイスの中でのもつれを防ぐために該プッシャの上記遠位先端を越えて延びる、項目1に記載の急性脳卒中再疎通システム。
(項目3)
ポリマーライニングは、該ポリマーライニングと流体連通している薬剤送達デバイスを通して送られるとき、注入可能な溶解剤が半径方向に、かつ少なくとも1つの被験体の塞栓の中に遠位に出ることを可能にする複数の開口部をさらに含む、項目2に記載の急性脳卒中再疎通システム。
(項目4)
上記少なくとも1つの改良型神経学的医療用デバイスは、上記近位のステンレス鋼プッシャであり、近位端および遠位先端と、遠位のニチノールデバイスとを有し、上記ポリマーライナーは、該遠位のニチノールデバイスの中でもつれを防ぐように上記ガイドワイヤーを方向づけるために、該プッシャの該遠位先端を越えて該遠位のニチノールデバイスの長さよりも大きい長さまで延びる、項目3に記載の急性脳卒中再疎通システム。
(項目5)
再捕捉可能性、柔軟性および追跡は、上記少なくとも1つの改良型神経学的医療用デバイスの複数の支柱によって可能になり、該少なくとも1つの改良型神経学的医療用デバイスは、屈曲/拡張が治療された血管を通して誘導することを可能にする、項目4に記載の急性脳卒中再疎通システム。
(項目6)
上記少なくとも1つの改良型神経学的医療用デバイスは、均一な複数のセルを備えている、項目5に記載の急性脳卒中再疎通システム。
(項目7)
上記少なくとも1つの改良型神経学的医療用デバイスは、可変のセルの大きさを備えている、項目5に記載の急性脳卒中再疎通システム。
(項目8)
上記可変のセルの大きさは、該セルの中にメッシュで捕らえられた血塊の露出された表面領域に影響を与える、項目7に記載の急性脳卒中再疎通システム。
(項目9)
画像化のために放射線不透過性をさらに含む、項目6に記載の急性脳卒中再疎通システム。
(項目10)
上記放射線不透過性は、本質的にプラチナおよび金からなるグループから選択された少なくとも1つのマーカー材料をさらに含む、項目9に記載の急性脳卒中再疎通システム。
(項目11)
上記複数のマーカーは、嵌合し該複数のマーカーを取り巻くように設計された予めレーザー切断された複数の開口の中に押し込められる、項目10に記載の急性脳卒中再疎通システム。
(項目12)
改良型神経学的医療用デバイスであって、該改良型神経学的医療用デバイスは、
半径方向フィルター/血管再生の組み合わせデバイスおよびバスケットのようなアセンブリーを脳脈管構造の中の所望の位置に送達するのに有効なカテーテルシステムと、
少なくとも3つのそれぞれのモードで機能する該カテーテルシステムに取り外し可能に繋留された自己拡張型半径方向フィルター/血管再生デバイスおよびバスケットアセンブリーと
を組み合わせて備え、該半径方向フィルター/血管再生デバイスおよびバスケットのようなアセンブリーは、該カテーテルに取り付けられ、半径方向フィルター/血管再生デバイスおよびバスケットアセンブリーは、1モードについて少なくとも2つの状態、すなわち引き込まれた状態および拡張された状態を含み、
該半径方向フィルター/血管再生デバイスおよびバスケットのようなアセンブリーは、各モードにおいて拡張された状態での展開の後に、引き込まれた状態に引き込まれる、改良型神経学的医療用デバイス。
(項目13)
上記血管再生デバイスは、ニチノールおよびスプリングテンパーステンレス鋼のうちの少なくとも1つから作られる、項目12に記載の改良型神経学的医療用デバイス。
(項目14)
薬剤が塞栓の部位まで送達されるように流体連通している注入カテーテルおよび薬剤送達システムをさらに備えている、項目13に記載の改良型神経学的医療用デバイス。

Claims (27)

  1. 患者の脳脈管構造の閉塞された脈管に回復された血流を提供するように構成された急性脳卒中再疎通システムであって、
    該システムは、
    脳脈管構造のアクセスおよび脳脈管構造の中への配置に有効なガイドワイヤーと組み合わせて動作するように適合されたカテーテルベースの装置であって、該カテーテルベースの装置は、近位セグメントと遠位セグメントとを備え、該近位セグメントは、該遠位セグメントを収容するように構成された外部カテーテルを規定する、カテーテルベースの装置
    を備え、
    該遠位セグメントは、近位プッシャと遠位血管再生デバイスとを備え、該近位プッシャは、展開中に該外部カテーテルを通って移動するのに適した長さおよび直径であり、
    該近位プッシャは該脳脈管構造の蛇行した脈管を通して誘導するように可撓性を提供するように構成されたワイヤまたはハイポチューブであり、
    該血管再生デバイスの近位端は、該近位プッシャにテザー付けされ、
    該血管再生デバイスの位端は開放し、
    該遠位血管再生デバイスは、少なくとも2つの状態、すなわち、拡張された状態と、該外部カテーテル内のシースに納められた場合の収縮状態を採用可能である自己拡張収縮可能デバイスを備え、
    使用中、該カテーテルベースの装置は、該外部カテーテルが、患者の該脳脈管構造内に位置する塞栓の遠位に位置するように位置決定され得、
    該外部カテーテルのシースから外されたときに、該遠位セグメントが該外部カテーテル内のある位置まで前進されることにより、該遠位血管再生デバイスが展開され、該塞栓の位置で自己拡張して、該塞栓に衝撃を与え、該塞栓を該閉塞された脈管の管壁に対して圧縮して、該閉塞された脈管の濯流および該塞栓の自然な溶解を可能にし、展開の後で、該遠位セグメントは、該外部カテーテル内のシースに再び納まり、該遠位血管再生デバイスの収縮を引き起こすことによって、該カテーテルベースの装置の該患者の体内からの除去を容易にすることが可能である、システム。
  2. 前記カテーテルベースの装置は、複数の開口部を備え、該複数の開口部は、注入可能な溶解剤が、該装置の管腔を通って伝達される場合に、前脈管構造の少なくとも前記塞栓の中に半径方向かつ遠位に出ることを可能にする、請求項1に記載の急性脳卒中再疎通システム。
  3. 前記遠位セグメントは、前記装置の屈曲/拡張が、湾曲した脈管を通る誘導を可能にする支柱を備える、請求項1または2に記載の急性脳卒中再疎通システム。
  4. 前記血管再生デバイスは、均一なセルの大きさを備えている、請求項1〜3のいずれかに記載の急性脳卒中再疎通システム。
  5. 前記血管再生デバイスは、可変のセルの大きさを備えている、請求項1〜3のいずれかに記載の急性脳卒中再疎通システム。
  6. 画像化のための放射線不透過性をさらに含む、請求項1〜5のいずれかに記載の急性脳卒中再疎通システム。
  7. 前記放射線不透過性は、本質的にプラチナおよび金からなるグループから選択された少なくとも1つのマーカー材料をさらに含む、請求項6に記載の急性脳卒中再疎通システム。
  8. 前記少なくとも1つのマーカー材料少なくとも1つのマーカーを嵌合して取り巻くように設計された予めレーザー切断された複数の開口の中に押し込められる、請求項7に記載の急性脳卒中再疎通システム。
  9. 前記血管再生デバイスは、ニチノールおよびスプリングテンパーステンレス鋼のうちの少なくとも1つから作られる、請求項1〜8のいずれかに記載の急性脳卒中再疎通システム。
  10. 前記遠位血管再生デバイスは、展開の際に、該遠位血管再生デバイスが、該遠位血管再生デバイスが位置する脈管の管壁まで直径を拡張することと、該位置において連続的な半径方向の圧力を提供することとが可能であるように構成され、その結果、前記塞栓が溶解するにつれ、前記血流が増加し続ける、請求項1〜9のいずれかに記載の急性脳卒中再疎通システム。
  11. 前記遠位血管再生デバイスは、展開の際に、該遠位血管再生デバイスが、前記脈管の直径の少なくとも約50%である流れに対する中間チャネルを生成することが可能であるように構成される、請求項10に記載の急性脳卒中再疎通システム。
  12. 前記遠位血管再生デバイスの前記近位端は、複数のテザーラインによって前記近位プッシャにテザー付けされる、請求項1〜11のいずれかに記載の急性脳卒中再疎通システム。
  13. 前記カテーテルベースの装置の長さは、143cm〜175cmである、請求項1〜12のいずれかに記載の急性脳卒中再疎通システム。
  14. 前記近位セグメントは、2.5フレンチ〜4フレンチの間の直径を有し、前記遠位セグメントは、0.305mm〜0.737mmの間の直径を有する、請求項1〜13のいずれかに記載の急性脳卒中再疎通システム。
  15. 前記遠位血管再生デバイスは、前記塞栓の小さな破片を下流に通過させながら、大きな破片を半径方向に濾過するように構成される、請求項1〜14のいずれかに記載の急性脳卒中再疎通システム。
  16. 前記遠位血管再生デバイスは、オプションで前記近位プッシャから取り外し可能である、請求項1〜15のいずれかに記載の急性脳卒中再疎通システム。
  17. 患者の脳脈管構造の閉塞された脈管に回復された血流を提供するように構成された急性脳卒中再疎通システムであって、
    該システムは、
    外部カテーテルと、
    近位プッシャと遠位血管再生デバイスとを備えた神経学的医療用デバイスと
    を備え、
    該近位プッシャは該脳脈管構造の蛇行した脈管を通して誘導するように可撓性を提供するように構成されたワイヤまたはハイポチューブであり、
    該血管再生デバイスの近位端は、該近位プッシャにテザー付けされ、
    該血管再生デバイスの近位端は開放し、
    該遠位血管再生デバイスは、少なくとも2つの状態、すなわち、拡張された状態と、該外部カテーテル内のシースに納められた場合の収縮状態を採用可能である自己拡張収縮可能デバイスを備え、
    使用中、該外部カテーテルは、該外部カテーテルが、患者の該脳脈管構造内に位置する塞栓の遠位に位置するように位置決定され、
    該外部カテーテルのシースから外されたときに、該神経学的医療用デバイスが該外部カテーテル内のある位置まで前進されることにより、該遠位血管再生デバイスが展開され、該塞栓の位置で自己拡張して、該塞栓に衝撃を与え、該塞栓を該閉塞された脈管の管壁に対して圧縮して、該閉塞された脈管の濯流および該塞栓の自然な溶解を可能にし、展開の後で、該神経学的医療用デバイスが、該外部カテーテル内のシースに再び納まり、該収縮状態への該遠位血管再生デバイスの収縮を引き起こすことによって、該神経学的医療用デバイスの該患者の体内からの除去を容易にすることが可能である、システム。
  18. 前記遠位血管再生デバイスは、塞栓の小さな破片を下流に通過させながら、大きな破片を半径方向に濾過するように構成される、請求項17に記載の急性脳卒中再疎通システム。
  19. 前記遠位血管再生デバイスは、展開の際に、該遠位血管再生デバイスが、該遠位血管再生デバイスが位置する脈管の管壁まで直径を拡張することと、該位置において連続的な半径方向の圧力を提供することとが可能であるように構成され、その結果、前記塞栓が溶解するにつれ、前記血流が増加し続ける、請求項17または18に記載の急性脳卒中再疎通システム。
  20. 前記遠位血管再生デバイスの前記近位端は、複数のテザーラインによって前記近位プッシャにテザー付けされる、請求項17〜19のいずれかに記載の急性脳卒中再疎通システム。
  21. 前記遠位血管再生デバイスは、オプションで前記近位プッシャから取り外し可能である、請求項17〜20のいずれかに記載の急性脳卒中再疎通システム。
  22. 前記遠位血管再生デバイスは、カテーテル内への収縮を容易にするパターンを有する拡張可能なメッシュ設計を含む、請求項17〜21のいずれかに記載の急性脳卒中再疎通システム。
  23. 塞栓を有する患者の脳脈管構造の閉塞された脈管に回復された血流を提供するように構成された神経学的医療用デバイスであって、
    該デバイスは、
    近位端と遠位端とを備える近位プッシャと、
    該近位プッシャの該遠位端に結合された拡張可能遠位血管再生デバイスと
    を備え、
    該近位プッシャは該脳脈管構造の蛇行した脈管を通して誘導するために可撓性を提供するように構成されたワイヤまたはハイポチューブであり、
    遠位血管再生デバイスの近位端は、複数のテザーラインを用いて該近位プッシャにテザー付けされ
    遠位血管再生デバイスの近位端は開放し、
    該遠位血管再生デバイスは、少なくとも2つの状態、すなわち、拡張された状態と、該外部カテーテル内のシースに納められた場合の収縮状態を採用可能である自己拡張収縮可能デバイスを備えている、デバイス。
  24. 前記遠位血管再生デバイスは、カテーテル内への収縮を容易にするパターンを有する拡張可能なメッシュ設計を含む、請求項23に記載の神経学的医療用デバイス。
  25. 前記遠位血管再生デバイスが、前記塞栓の位置において、該遠位血管再生デバイスの拡張された状態にあるとき、該遠位血管再生デバイスは、塞栓の小さな破片を下流に通過させながら、大きな破片を半径方向に濾過するように構成される、請求項23または24に記載の神経学的医療用デバイス。
  26. 前記遠位血管再生デバイスは、オプションで前記近位プッシャから取り外し可能である、請求項23〜25のいずれかに記載の神経学的医療用デバイス。
  27. 請求項23〜26のいずれかに記載の神経学的医療用デバイスと外部カテーテルとを備えるシステムであって、
    使用中、該外部カテーテルは、該外部カテーテルが、患者の前記脳脈管構造内に位置する塞栓の遠位に位置するように位置決定され、
    該外部カテーテルのシースから外されたときに、該神経学的医療用デバイスが該外部カテーテル内のある位置まで前進されることにより、該遠位血管再生デバイスが展開され、該塞栓の位置で自己拡張して、該塞栓に衝撃を与え、該塞栓を該閉塞された脈管の管壁に対して圧縮して、該閉塞された脈管の濯流および該塞栓の自然な溶解を可能にし、展開の後に、該神経学的医療用デバイスが、該外部カテーテル内のシースに再び納まり、前記収縮状態への該遠位血管再生デバイスの収縮を引き起こすことによって、該神経学的医療用デバイスの該患者の体内からの除去を容易にすることが可能である、システム。
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