JP2013518693A - 血管閉塞をトラバースするための装置および使用方法 - Google Patents
血管閉塞をトラバースするための装置および使用方法 Download PDFInfo
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Abstract
【解決手段】 心臓血管と末梢血管の両方に適している装置および方法は、振動可能部材を振動させるために、引張部材およびばね要素(例えば圧縮ばね)を使用し、本発明のシステムは、振動可能部材の振動の周波数または振幅が調整されるようにするための装置または制御装置を含む。また、引張部材およびばね要素を使用する振動可能部材を振動させるための方法も提供される。この装置およびシステムは、完全または部分閉塞を貫通するためだけでなく、部分閉塞血管または蛇行血管を通したカテーテルのデリバラビリティを改良するために有用である。
【選択図】 図1
Description
Claims (27)
- 近端部および遠端部を有するカテーテルと、
近端部および遠端部を有するばね要素であって、当該ばね要素の前記近端部は、前記カテーテルの前記遠端部に取り付けられる、ばね要素と、
前記カテーテル内に位置する引張部材であって、当該引張部材は近端部および遠端部を有し、前記引張部材の前記遠端部は遠位構成要素に取り付けられる、引張部材と、
振動可能部材と、
前記引張部材の前記近端部に操作可能に接続された振動エネルギー源であって、前記引張部材を引張することによって前記引張部材および前記ばね要素を介して前記振動可能部材で少なくとも1つの振動を発生させるようになされた振動エネルギー源と、
を備える装置。 - 前記引張部材が可撓性の糸である、請求項1に記載の装置。
- 前記遠位構成要素が前記振動可能部材である、請求項1に記載の装置。
- 前記遠位構成要素が前記ばね要素の前記遠端部である、請求項1に記載の装置。
- 前記振動可能部材がキャップであり、当該キャップが、前記ばね要素の前記遠端部に取り付けられる、請求項1に記載の装置。
- 前記ばね要素が圧縮ばね、コイルばね、板ばね、ベローズ、圧縮性ポリマー、および弾性膜からなるグループから選択される、請求項1に記載の装置。
- 前記振動エネルギー源が往復部材を有するエンジン、シェーカー、アクチュエータ、およびソレノイドからなるグループから選択される、請求項1に記載の装置。
- カテーテルアンカリング装置をさらに備える、請求項1に記載の装置。
- 前記カテーテルアンカリング装置が、拡張可能なバルーンである、請求項8に記載の装置。
- 請求項1乃至請求項9のいずれか一項に記載の装置と、
前記振動エネルギー源を制御するようになされた制御装置と、
を備えるシステム。 - 前記振動が、少なくとも1つの周波数および少なくとも1つの振幅を含み、かつ前記少なくとも1つの周波数および少なくとも1つの振幅が、前記制御装置を介して独立して調整可能である、請求項10に記載のシステム。
- センサと、当該センサに機能的に接続されるとともに、前記制御装置に操作可能に接続されたプロセッサとをさらに備え、当該プロセッサは前記センサからの入力を分析することができる、請求項10に記載のシステム。
- 前記カテーテルが湾曲を含む場合、引張部材経路長のバリエーションを補うための張力調整機構をさらに備える、請求項10に記載のシステム。
- 振動可能部材を振動させる方法であって、
ばね部材の近端部に向かって当該ばね部材の遠端部を圧縮する荷重を発生させるために、引張部材の近端部から当該引張部材を引張することであって、前記引張部材は、遠端部で前記ばね部材の前記遠端部に付けられ、前記ばね部材は、近端部でカテーテルの遠端部に付けられ、前記カテーテルは、前記引張部材を収納しており、前記振動可能部材は、前記ばね要素の前記遠端部に機能的に付けられる、前記引張部材を引張することと、
前記引張部材によって生成される前記荷重を解放することと、それによって、前記ばね要素の伸長を可能にすることと、
前記振動部材の振動をもたらすために、前記引張および解放ステップを繰り返すことと、
を含む、方法。 - 振動エネルギー源によって前記引張および解放ステップが実行される、請求項14に記載の方法。
- 前記振動が、少なくとも1つの周波数および少なくとも1つの振幅を有し、前記少なくとも1つの周波数が、前記振動エネルギー源に機能的に付けられた制御装置によって制御される、請求項15に記載の方法。
- 前記振動が、少なくとも1つの周波数および少なくとも1つの振幅を有し、前記少なくとも1つの振幅が、前記振動エネルギー源に機能的に付けられた制御装置によって制御される、請求項16に記載の方法。
- 装置における振動力を制御する方法であって、
a)初期制御パラメータを受信することと、
b)振動力(F)で振動可能部材を振動させるのに十分な振動エネルギー源による引張部材の少なくとも1回の引張および解放から成る振動繰り返しサイクルを開始することであって、前記引張部材は、ばね要素の遠端部に配置された遠位構成要素に付けられるとともに、近端部で前記振動エネルギー源に付けられ、前記ばね要素は、近端部でカテーテルの遠端部に付けられ、前記カテーテルは前記引張部材を収納し、前記振動可能部材は、前記ばね要素の前記遠端部に付けられ、かつ前記引張部材の前記引張および解放は、前記ばね要素の圧縮および伸長をもたらすものである、振動繰り返しサイクルを開始することと、
c)前記振動繰り返しサイクルのために達成された振幅値入力を受信することと、
d)前記達成された振幅値に従って前記振動力を調整することと、
を含む、方法。 - 前記初期制御パラメータの受信は、(i)目標振幅値入力の受信と、(ii)最大振幅値入力の受信と、(iii)初期周波数値入力の受信と、(iv)最大周波数値入力の受信と、(v)最大繰り返し回数値入力の受信とを含む、請求項18に記載の方法、
- 前記開始は、(i)繰り返し回数をゼロに初期化することと、(ii)前記装置で前記振動繰り返しサイクルを開始することとを含み、前記少なくとも1回の引張および解放は、初期周波数および目標振幅で発生する、請求項18に記載の方法。
- e)前記繰り返し回数を最大繰り返し回数値と比較し、前記動作振幅を最大振幅値と比較し、かつ前記動作周波数を最大周波数値と比較することと、f)前記繰り返し回数が前記最大繰り返し回数値より小さい場合、または前記動作振幅が前記最大振幅値より小さく、かつ前記動作周波数が前記最大周波数値より小さい場合に、前記装置で新しい振動繰り返しサイクルを開始することと、g)前記繰り返し回数が前記最大繰り返し回数値より小さくない場合、および前記動作振幅が前記最大振幅値より小さくないか、または前記動作周波数が前記最大周波数値より小さくない場合に、前記振動繰り返しサイクルを終了することをさらに含む、請求項21に記載の方法。
- 前記血管に請求項1の装置を導入することと、
前記振動可能部材を振動させるために、前記振動エネルギー源から前記引張部材に一連の引張力を発生させることと、
を含む、血管閉塞をトラバースする方法。 - 前記カテーテルの前記遠端部を前記閉塞に接するように位置づけることをさらに含む方法であって、前記振動可能部材は、前記閉塞を貫通するのに十分な振幅および周波数で振動させられる、請求項23に記載の方法
- 前記振動可能部材が前記閉塞を貫通した際に、前記閉塞を通して前記装置を前進させることをさらに含む、請求項24に記載の方法。
- 前記振動可能部材は、前記血管の障害の周りで前記カテーテルを操作するのに十分な振幅および周波数で振動させられる、請求項23に記載の方法。
- カテーテルのデリバラビリティを改良する方法であって、
蛇行セグメントを有する血管に請求項1の装置を導入することと、
前記蛇行セグメントを通して前記カテーテルを操作するのに十分な振幅および周波数で前記振動可能部材を振動させるために、前記振動エネルギー源から前記引張部材に一連の引張力を発生させることと、
を含む、方法。
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AU2011214066B2 (en) | 2014-09-11 |
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IL221217A (en) | 2017-01-31 |
US9034004B2 (en) | 2015-05-19 |
US20110196384A1 (en) | 2011-08-11 |
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AU2011214066A1 (en) | 2012-08-16 |
EP3508244A1 (en) | 2019-07-10 |
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EP2533840A1 (en) | 2012-12-19 |
RU2014148109A (ru) | 2016-06-20 |
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WO2011098913A1 (en) | 2011-08-18 |
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RU2618650C2 (ru) | 2017-05-05 |
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