JP2024509644A - パルス場アブレーション装置および方法 - Google Patents
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Abstract
Description
Claims (32)
- パルス場アブレーションのためのアブレーション装置であって、
近位端、遠位端、およびそれらの間に延在する管腔を有する外側細長シャフトと、近位端および遠位端を有する内側細長シャフトとを含むカテーテル、
近位端、近位部分、遠位端、および遠位部分を有する拡張可能バスケットであって、前記拡張可能バスケットの前記近位端は、前記外側細長シャフトの前記遠位端に隣接して固定され、前記拡張可能バスケットの前記遠位端は、前記内側細長シャフトの前記遠位端に隣接して固定され、前記拡張可能バスケットは、折り畳まれた構成および少なくとも1つの拡張された構成を有する、拡張可能バスケット、
前記拡張可能バスケットに形成された一組の電極、
電気パルスを発生させるのに適した、前記一組の電極に電気的に接続されたパルス発生器、
を備え、
前記拡張可能バスケットは、複数のフィラメントを含む編組メッシュから形成され、前記フィラメントは非導電性材料から作られ、前記フィラメントの少なくとも一部は管腔を含み、前記フィラメントは電極および複数の導電線をさらに含み、前記導電線の少なくとも1つは、前記フィラメントの少なくとも1つの前記管腔の内側に少なくとも部分的に配置され、前記電極の少なくとも1つに電気的に接続される、装置。 - 前記装置がパルス場アブレーション装置である、請求項1に記載の装置。
- 前記カテーテルが、パルス場アブレーション用に構成されている、請求項1に記載の装置。
- 前記パルス場アブレーション装置が、前記患者の心臓で使用するように構成されている、請求項2に記載の装置。
- 前記パルス場アブレーション装置が肺静脈隔離用に構成されている、請求項4に記載の装置。
- 前記フィラメントが、熱可塑性エラストマーまたはポリマーの少なくとも1つから作製される、請求項1に記載の装置。
- 前記フィラメントの少なくとも1つが、前記フィラメントの前記管腔に配置された機械的支持体によって補強される、請求項6に記載の装置。
- 前記機械的支持体がストラットである、請求項7に記載の装置。
- 前記フィラメントの少なくとも1つが、前記フィラメントの構造が前記フィラメントの残りの部分よりも局所的に機械的に弱い少なくとも1つの場所を含む、請求項6に記載の装置。
- 前記局所的により弱い場所がリビングヒンジを形成する、請求項9に記載の装置。
- 前記フィラメントのうちの2つ以上が、前記拡張可能バスケットの前記遠位または近位部分のうちの少なくとも1つで互いに併合され、少なくとも1つの併合構造を形成する、請求項1に記載の装置。
- 前記フィラメントの前記遠位または近位部分の前記少なくとも一方の前記併合構造が、前記フィラメントの全長の1%~30%を占める、請求項11に記載の装置。
- 前記併合構造の少なくとも一方が、前記併合構造が前記併合構造の残りの部分よりも局所的に機械的に弱い少なくとも1つの場所を含む、請求項11に記載の装置。
- 前記局所的により弱い場所がリビングヒンジを形成する、請求項13に記載の装置。
- パルス場アブレーション用のカテーテルであって、
近位端、遠位端、およびそれらの間に延在する管腔を有する外側細長シャフトと、近位端および遠位端を有する内側細長シャフト、
近位端、近位部分、および遠位端、ならびに遠位部分を有する拡張可能バスケットであって、前記拡張可能バスケットの前記近位端は、前記外側細長シャフトの前記遠位端に隣接して固定され、前記拡張可能バスケットの前記遠位端は、前記内側細長シャフトの前記遠位端に隣接して固定され、前記拡張可能バスケットは、折り畳まれた構成および少なくとも1つの拡張された構成を有する、拡張可能バスケット、
拡張可能バスケットに形成された一組の電極、
電気パルスを発生させるのに適したパルス発生器であって、前記パルス発生器が前記一組の電極に電気的に接続されている、パルス発生器、を備え、
前記拡張可能バスケットは、複数のフィラメントを含む編組メッシュから形成され、前記複数のフィラメントは非導電性材料から作られ、前記複数のフィラメントの各フィラメントの少なくとも一部は管腔を含み、前記複数のフィラメントは電極および複数の導電線をさらに含み、前記複数の導電線は、前記複数のフィラメントの前記管腔の内側に少なくとも部分的に配置され、前記電極に電気的に接続されている、カテーテル。 - 前記カテーテルは、患者の心臓で使用するように構成される、請求項15に記載のカテーテル。
- 前記カテーテルは、肺静脈隔離用に構成されている、請求項16に記載のカテーテル。
- 前記カテーテルは、高周波電気パルスを送達するように構成されている、請求項15に記載のカテーテル。
- 前記複数のフィラメントは、熱可塑性エラストマーまたはポリマーの少なくとも一方から作られる、請求項15に記載のカテーテル。
- 前記複数のフィラメントのうちの少なくとも1つのフィラメントが、前記フィラメントの前記管腔内に配置された機械的支持体によって補強されている、請求項19に記載のカテーテル。
- 前記機械的支持体がストラットである、請求項20に記載のカテーテル。
- 前記複数のフィラメントのうち少なくとも1つのフィラメントは、前記フィラメントの構造が前記フィラメントの残部よりも局所的に機械的に弱い場所を少なくとも1つ含む、請求項19に記載のカテーテル。
- 前記局所的により弱い場所がリビングヒンジを形成する、請求項22に記載のカテーテル。
- 前記複数のフィラメントのうちの2つ以上のフィラメントが、前記拡張可能バスケットの前記遠位または近位部分のうちの少なくとも一方で互いに併合され、少なくとも1つの併合構造を形成する、請求項15に記載のカテーテル。
- 前記拡張可能バスケットの前記遠位または近位部分の前記少なくとも一方の前記併合構造の少なくとも一方が、前記2つ以上のフィラメントの全長の1%~30%を占める、請求項24に記載のカテーテル。
- 前記併合構造の少なくとも一方が、前記併合構造が前記併合構造の残りの部分よりも局所的に機械的に弱い少なくとも1つの場所を含む、請求項24に記載のカテーテル。
- 前記局所的により弱い場所がリビングヒンジを形成する、請求項26に記載のカテーテル。
- アブレーションの方法であって、
近位端、遠位端、およびそれらの間に延在する管腔を有する外側細長シャフトと、近位端および遠位端を有する内側細長シャフトとを含む、カテーテル、近位端、近位部分、遠位端、および遠位部分を有する拡張可能バスケットであって、前記拡張可能バスケットの前記近位端は、前記外側細長シャフトの前記遠位端に隣接して固定され、前記拡張可能バスケットの前記遠位端は、前記内側細長シャフトの前記遠位端に隣接して固定され、前記拡張可能バスケットは、折り畳まれた構成および少なくとも1つの拡張された構成を有する、拡張可能バスケット、前記拡張可能バスケットに形成された一組の電極、電気パルスを発生させるのに適したパルス発生器であって、前記パルス発生器は、前記一組の電極に電気的に接続されている、パルス発生器を備え、前記拡張可能バスケットは複数のフィラメントを含む編組メッシュから形成され、前記フィラメントは非導電性材料から作られ、前記複数のフィラメントの前記各フィラメントの少なくとも一部は管腔を含み、前記複数のフィラメントは電極および複数の導電線をさらに含み、前記導電線は、前記複数のフィラメントの前記管腔の内側に少なくとも部分的に配置され、前記電極に電気的に接続されている、パルス場アブレーション装置を設けるステップと、
治療部位に隣接して前記カテーテルのバスケットアセンブリを送達するステップと、
前記拡張可能バスケットを折り畳まれた構成から少なくとも1つの拡張した構成に展開するステップと、
拡張された拡張可能バスケットの前記バスケットアセンブリを、前記治療部位の標的組織に隣接して配置するステップと、
前記治療部位の前記標的組織をアブレーションするステップと、
を含む、方法。 - 前記治療部位が心臓の左心房にある、請求項28に記載の方法。
- 前記治療部位が肺静脈口を含む、請求項29に記載の方法。
- 前記治療部位の前記標的組織の前記アブレーションが、パルス電磁界によって引き起こされるパルス場アブレーションの方法を使用する、請求項28に記載の方法。
- 前記バスケットアセンブリに配置された前記一組の電極の少なくとも一部を前記治療部位に隣接させる、請求項28に記載の方法。
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CN114305660B (zh) | 2021-12-31 | 2024-06-11 | 杭州德诺电生理医疗科技有限公司 | 脉冲消融导管及脉冲消融装置 |
CN114404035A (zh) | 2022-01-21 | 2022-04-29 | 杭州德诺电生理医疗科技有限公司 | 消融装置 |
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US11786300B2 (en) | 2023-10-17 |
US20240081902A1 (en) | 2024-03-14 |
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US20230000550A1 (en) | 2023-01-05 |
KR20230165840A (ko) | 2023-12-05 |
CA3214189A1 (en) | 2022-10-13 |
BR112023020624A2 (pt) | 2023-12-05 |
AU2022254861A1 (en) | 2023-11-09 |
IL307390A (en) | 2023-11-01 |
WO2022214870A1 (en) | 2022-10-13 |
AU2022254861B2 (en) | 2024-01-18 |
US11832785B2 (en) | 2023-12-05 |
EP4319673A1 (en) | 2024-02-14 |
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