JP4960220B2 - センサ構造体を有する融除装置 - Google Patents
センサ構造体を有する融除装置 Download PDFInfo
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Description
本出願は、2004年4月19日に出願された米国仮特許出願第60/563,581号の出願日の利得を主張するものであり、この開示は、参照することによってここに含まれるものとする。
本発明は、心臓融除用の装置及び方法、並びにこのような装置及び方法に有用なセンサ構造体に関する。
Claims (33)
- 心臓治療用の装置において、
(a)近位端及び遠位端と管腔とを有するカテーテルと、
(b)前記カテーテルの前記遠位端又はそこに隣接して取り付けられた1つ以上のバルーンを備える拡張式融除装置であって、前記融除装置は、折畳み状態と拡張状態とを有し、前記バルーン融除装置は、前記融除装置が前記拡張状態にあるとき、前記融除装置の近傍の心臓組織を融除するように作動され、前記カテーテルと前記融除装置は、前記拡張状態において、前記1つ以上のバルーンの前記遠位側に開口するポートと、前記ポートと前記カテーテルの前記近位端との間に延在する連続的通路とを画成し、前記カテーテルは、前記心臓に対する前記拡張式融除装置の方向付けが選択的に変更可能であるように、操舵可能であるような拡張式融除装置と、
(c)近位端と遠位端、主部、フープ領域、および前記主部を前記フープ領域に連結する単一の脚部を有する細長のセンサプローブであって、前記脚部が前記主部から外方に延在し、そして前記主部の遠位端から近位側に延在し、前記センサプローブは、前記センサプローブの前記遠位端に隣接して配置された1つ以上の電極を備え、前記通路と前記融除装置は、前記センサプローブの前記遠位端が前記ポートを通って前記融除装置から外に突出する状態で、前記センサプローブが前記通路内に離脱可能に配置され得るように、構成かつ配置されるようなセンサプローブと、を備え、
前記フープ領域が単一のフープ部分から形成されていることを特徴とする装置。 - 前記拡張式融除装置は、エネルギーを前記ポートを丸く取り囲むループ状領域内に導くように、構成かつ配置されていることを特徴とする、請求項1に記載の装置。
- 前記拡張式融除装置は、超音波放射体を備え、前記1つ以上のバルーンは、前記拡張式融除装置が前記拡張状態にあるとき、超音波エネルギーを前記放射体から前記ループ状領域内に導くのに適するようにされた拡張式エネルギー案内構造体を形成していることを特徴とする、請求項2に記載の装置。
- 前記1つ以上のバルーンは、共通壁を画成する構造バルーンと反射バルーンとを含み、前記構造バルーンが液体で膨張し、前記反射バルーンが気体で膨張することによって、前記拡張式構造体が前記拡張状態にあるとき、前記バルーンは、前記共通壁において超音波エネルギーに対して反射性の界面を形成していることを特徴とする、請求項3に記載の装置。
- 前記拡張式融除装置は、前後軸を画成し、前記ループ状領域は、前記融除装置の前記前後軸と実質的に同軸の軸を有し、前記エネルギー案内構造体は、前記超音波エネルギーを前方成分を有する方向において前記領域内に導くように、配置されていることを特徴とする、請求項3に記載の装置。
- 前記ポートは、前記前後軸上に配置され、前記センサプローブのフープ領域は、前記1つ以上の電極を保持し、前記センサプローブは、前記フープ領域が前記ポートから突出したときに前記フープ領域が前記前後軸及び前記フープ状領域と同軸のフープを形成する傾向にあるように、構成かつ配置されていることを特徴とする、請求項3に記載の装置。
- 前記拡張式融除装置の前記バルーンの1つは、遠位壁を備え、前記ループ状領域は、前記拡張状態において前記遠位壁を覆い、前記ポートは、前記遠位壁に配置されていることを特徴とする、請求項2に記載の装置。
- 前記センサプローブのフープ領域は、前記1つ以上の電極を保持し、前記センサプローブは、前記フープ領域が前記ポートから突出するときに前記フープ領域がフープを形成する傾向にあるように、構成かつ配置されていることを特徴とする、請求項7に記載の装置。
- 前記フープは、前記ループ状領域と実質的に同軸であることを特徴とする、請求項8に記載の装置。
- 前記フープは、前記ポートの遠位側に配置されていることを特徴とする、請求項8に記載の装置。
- 前記フープは、前記遠位壁を密接に覆っていることを特徴とする、請求項8に記載の装置。
- 前記遠位壁は、主部と前記主部から遠位側に突出する先端部とを備え、前記ポートは、前記先端部に配置され、前記フープは、前記フープが前記ポートの近位側に配置されるように、前記主部を緊密に覆っていることを特徴とする、請求項11に記載の装置。
- 前記カテーテルは、前記カテーテルの前記遠位端に隣接して前記融除装置の近位側に位置する屈曲可能な部分を備えていることを特徴とする、請求項1に記載の装置。
- 1つ以上の引っ張りワイヤをさらに備え、前記引張りワイヤの各々は、前記屈曲可能な部分の遠位側で前記カテーテルに接続されるか又は前記融除装置に接続された遠位端を有し、前記1つ以上の引張りワイヤは、前記屈曲可能な部分が前記1つ以上の前記引張りワイヤを引っ張ることによって選択的に屈曲可能となるように、前記カテーテルに摺動可能に取り付けられることを特徴とする、請求項13に記載の装置。
- 前記センサプローブは、管状の金属製シャフト部と前記シャフト部の前記遠位端に接続された遠位部とを備え、前記遠位部は、1つ以上の電極を保持するフープ領域を備え、前記センサプローブは、前記1つ以上の電極に電気的に接続された1つ以上の導体をさらに備え、前記導体の一部は前記シャフト部内に延在していることを特徴とする、請求項1に記載の装置。
- 前記遠位部は、ワイヤコアと前記ワイヤコアを覆うポリマー製カバーとを備え、前記カバーが前記1つ以上の電極の少なくともいくつかを前記コアから絶縁するように、前記電極が前記ポリマー製カバーを覆っていることを特徴とする、請求項15に記載の装置。
- 展開されていない状態と展開された状態とを有するプローブ本体と、前記プローブ本体に沿って配置された1つ以上の機能要素とを備えるプローブであって、前記プローブ本体は、前記展開されていない状態において細長く延びかつ柔軟であるようなプローブにおいて、前記展開状態における前記プローブ本体は、
(a)遠位端まで遠位方向に延在する主部と、
(b)前記主部の前記遠位端から前記遠位方向と反対の近位方向に延在する単一の脚部であって、前記主部から離れた外端を有する脚部と、
(c)前記脚部の前記外端から前記主部の周りに延在するフープ領域であって、1つ以上の前記機能要素を備えるフープ領域と、を備え、
前記フープ領域が単一のフープ部分から形成されていることを特徴とするプローブ。 - 近位端及び遠位端とを有する導入構造体と、前記導入構造体の前記遠位端と隣接するポートと、前記近位端に隣接する個所から前記ポートまで延在する通路とをさらに備える請求項17に記載のプローブであって、前記プローブ本体は、前記展開されていない状態において、前記通路内を摺動可能であり、前記プローブ本体の前記主部は、前記展開状態において、前記ポートから突出するようになっていることを特徴とする、プローブ。
- 前記プローブ本体の前記フープ領域は、前記プローブ本体が前記展開状態にあるとき、前記導入構造体の周りに延在していることを特徴とする、請求項18に記載のプローブ。
- 前記導入構造体は、近位端及び遠方位端を有するカテーテルと、前記カテーテルの前記遠位端に取り付けられた拡張式融除装置とを備え、前記融除装置は、折畳み状態と拡張状態とを有し、前記融除装置は、前記融除装置が前記拡張状態にあるとき、前記融除装置の近傍の組織にエネルギーを加えるべく作動されるようになっていることを特徴とする、請求項18に記載のプローブ。
- 前記融除装置は、前記ポートを包囲するループ状領域にエネルギーを加えるのに適するようになっていることを特徴とする、請求項20に記載のプローブ。
- 前記融除装置は、超音波放射体と、前記拡張式融除装置が前記拡張状態にあるときに超音波エネルギーを前記放射体から前記ループ状領域内に導くのに適するように構成された拡張式エネルギー案内構造体とを備えていることを特徴とする、請求項21に記載のプローブ。
- 前記拡張式融除装置は、前後軸を画成し、前記ループ状領域は、前記融除装置の前記前後軸と実質的に同軸の軸を有し、前記エネルギー案内構造体は、前記超音波を前方成分を有する方向において前記領域内に導くように配置されていることを特徴とする、請求項22に記載のプローブ。
- 前記ポートは、前記前後軸に隣接して配置され、前記プローブ本体の前記主部は、前記融除装置の前記前後軸と実質的に平行に延在し、前記プローブ本体の前記フープ領域は、前記エネルギー案内構造体が前記拡張状態にあってかつ前記プローブが前記展開状態にあるとき、前記前後軸の周りに延在していることを特徴とする、請求項23に記載のプローブ。
- 前記エネルギー案内構造体は、前記拡張状態において、遠位壁を備え、前記ループ状領域は、前記遠位壁を覆い、前記プローブ本体の前記フープ領域は、前記エネルギー案内構造体が前記展開状態にあってかつ前記プローブが前記展開状態にあるとき、前記遠位壁を覆っていることを特徴とする、請求項24に記載のプローブ。
- 前記エネルギー案内構造体は、前記エネルギー案内構造体が前記拡張状態にあるときに前記遠位壁から前方に延在する突起を備え、前記軸は前記突起を貫通し、前記ポートは前記突起に配置され、前記プローブ本体の前記フープ領域は、前記プローブが前記展開状態にあるとき、前記突起を丸く取り囲むようになっていることを特徴とする、請求項25に記載のプローブ。
- 前記ポートは、前記遠位壁を貫通していることを特徴とする、請求項25に記載のプローブ。
- 前記プローブは、前記通路内に離脱可能に嵌入されていることを特徴とする、請求項18に記載のプローブ。
- 前記プローブ本体は弾性があり、前記プローブ本体の前記ポートから外に突出する部分は、前記プローブ本体が前記導入構造体に対して遠位側に前進するとき、それ自体の弾性によって変形し、前記脚部と前記フープ領域とを形成するのに適するようになっていることを特徴とする、請求項18に記載のプローブ。
- 請求項17に記載のプローブであって、前記フープ領域が、金属製ワイヤコアと前記ワイヤコアを覆うポリマー製カバーとを備え、1つ以上の電極が前記ポリマー製カバーを覆い、拘束されていない形状の前記フープ領域は、前記遠位部の少なくとも一部からなる前記1つ以上の電極を有するフープを含むようなフープ領域と、
(d)前記シャフト部内に延在する1つ以上の電気的導体であって、前記電極に電気的に接続される電気的導体と、
を備えていることを特徴とするプローブ。 - 前記シャフト部と前記遠位部は、約1.25mm以下の断面寸法を有していることを特徴とする、請求項30に記載のプローブ。
- 前記1つ以上の電極は、複数の電極であることを特徴とする、請求項31に記載のプローブ。
- 前記遠位部は、前記シャフト部よりも実質的に柔軟であることを特徴とする、請求項30に記載のプローブ。
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2005
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US9561043B2 (en) | 2017-02-07 |
US20130178884A1 (en) | 2013-07-11 |
KR101193709B1 (ko) | 2012-10-23 |
US20080249518A1 (en) | 2008-10-09 |
US8216216B2 (en) | 2012-07-10 |
US8721633B2 (en) | 2014-05-13 |
US8398623B2 (en) | 2013-03-19 |
US20120277740A1 (en) | 2012-11-01 |
EP1737371B1 (en) | 2011-06-08 |
KR20070004097A (ko) | 2007-01-05 |
ATE511891T1 (de) | 2011-06-15 |
EP1737371A1 (en) | 2007-01-03 |
WO2005102199A1 (en) | 2005-11-03 |
US20140249556A1 (en) | 2014-09-04 |
CN1942145A (zh) | 2007-04-04 |
JP2007533410A (ja) | 2007-11-22 |
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