JP4658049B2 - 真空ベースのスタビライザ付組織プローブアッセンブリ - Google Patents
真空ベースのスタビライザ付組織プローブアッセンブリ Download PDFInfo
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Description
本発明は、組織切除処置など、侵入型の医療処置を実行するための装置およびシステムに関する。
本発明の様々な実施例を図面を参照して以下に説明する。図面は実寸で書かれているわけではなく、同じ構造の要素あるいは機能には、全図面を通して同じ符号が付されている。図面は、本発明の特定の実施例の説明を容易にするためのみのものである。図面は、本発明を網羅的に説明することを意図したものではなく、本発明の範囲を限定することを意図したものでもない。更に、図に示す実施例は、ここに示されている本発明の全態様あるいは利点を有している必要はない。本発明の特定の実施例と共に記載された態様または利点は、その実施例に限定する必要はなく、図に示されていなくても、本発明のその他のどの実施例でも実行することができる。
図2を参照して、カニューラ201の詳細を説明する。カニューラ201は、近位端204と、遠位端206、及び、近位端204と遠位端206との間に延在するルーメン208を有するシャフト202を具える。図に示す実施例では、シャフト202は、円形断面形状を有し、断面のディメンションが0.25ないし1.5インチである。シャフト202は、その他の断面形状とディメンションを有していても良い。図2Aに示すように、シャフト202の遠位端206は、実質的にプレシェープした直線ジオメトリを有する。代替的に、遠位端206は、シャフト202の縦軸211からはなして切断カテーテル104を案内するの使用することができる、プレシェープした曲線ジオメトリ(図2B)を有していても良い。
図3を参照して、切除カテーテル104の詳細を述べる。切除カテーテル104は、ルーメン301を有する始動シース300と、シース300のルーメン301内に摺動可能に配置したカテーテル部材302と、を具える。切除カテーテル104は更に、隣接する組織に切除エネルギィを伝送する電極構造310と、この組織に関連する電極構造310を安定化させるためのカテーテル部材302の遠位端306に装着した真空始動スタビライザ400を具える。切除カテーテル104は、更に、カテーテル部材302の近位端304に装着されたハンドルアッセンブリ320を具える。ハンドルアッセンブリ320は、外科医が切除カテーテル104を操作する手段を提供するハンドル321と、電極構造310に切除エネルギィを提供する切除ソース108に連結された電気的コネクタ362を具える。ハンドルアッセンブリ320は、更にスタビライザ400用の真空力を発生する真空598に接続された真空ポート408と、電極構造310に加圧膨張媒体を供給するポンプ409に接続された膨張ポート336を具える。
ここで、図20−26を参照して、グラウンドカテーテル106について述べる。図20及び21に示す実施例では、グラウンドカテーテル106(1)は、近位端602と遠位端604を有するカテーテル部材600と、遠位端604上に担持された複数の電極エレメント606と、近位端602に固定されたハンドルアッセンブリ608を具える。カテーテル部材600は、例えば、ポリエチレンあるいはポリウレタン、またはPEBAX(登録商標)材料(ポリウレタンとナイロン)などの、ポリマの導電材料でできている。ハンドルアッセンブリ608は、外科医にカテーテル部材600を操作する手段を提供するハンドル609と、電極エレメント606に切除エネルギィを提供する切除ソース108に連結された電気コネクタ610を具える。ハンドルアッセンブリ608も、遠位端604を操作するためのステアリング機構612を具えている。ステアリング機構612は、切除カテーテル104について上述したステアリング機構500と同様である。更に、グラウンドカテーテル106(1)は、組織の温度をモニタするための温度センサ(図示せず)を担持していても良い。
図27−29を参照して、マッピングカテーテル700の詳細を説明する。マッピングカテーテル700は、心臓の電気信号を検出して、これによって切除すべき心臓のターゲット位置を決定するように構成されている。
Claims (12)
- 手術の組織プローブにおいて:
細長部材と;
前記細長部材の遠位端の上に担持された電極エレメントであって、拡張可能−折りたたみ可能ボディを有する電極エレメントと;
前記電極エレメントを少なくとも部分的に取り囲み、かつ前記電極エレメントから分離されているシュラウドを具え、前記電極エレメントを組織表面に固着させる真空力を与えるように構成したスタビライザエレメントと;
を具えることを特徴とする組織プローブ。 - 請求項1に記載の組織プローブにおいて、前記電極エレメントが、前記組織に切除エネルギィを送出するために構成されていることを特徴とする組織プローブ。
- 請求項2に記載の組織プローブにおいて、前記拡張可能−折りたたみ可能ボディが、その遠位側対向表面に複数の孔を有し、前記電極エレメントが更に、前記拡張可能−折りたたみ可能な電極ボディの内側に配置され導電体であって、前記拡張可能−折りたたみ可能な電極ボディ内に含まれるイオン媒体を介して前記孔にエネルギィを送り、それによって前記エネルギィの前記電極エレメントの近位側に位置する組織へのエネルギィのイオン移動を可能にするように構成された導電体を具えることを特徴とする組織プローブ。
- 請求項2に記載の組織プローブにおいて、拡張可能−折りたたみ可能な電極ボディが導電性の外側表面部分を具えることを特徴とする組織プローブ。
- 請求項1に記載の組織プローブにおいて、前記シュラウドが、前記細長部材の遠位端に固着されていることを特徴とする組織プローブ。
- 請求項1乃至5のいずれかに記載の組織プローブにおいて、前記スタビライザエレメントが、前記シュラウドに配置された一またはそれ以上の真空ポートを具えることを特徴とする組織プローブ。
- 請求項1乃至6のいずれかに記載の組織プローブにおいて、前記シュラウドが、前記細長部材の遠位端の周囲に配置されていることを特徴とする組織プローブ。
- 請求項1乃至6のいずれかに記載の組織プローブが更に、それを通って前記細長部材が摺動的に配置されているルーメンを有するスリーブを具え、前記シュラウドが前記スリーブルーメンの遠位端の開口の周りに配置されていることを特徴とする組織プローブ。
- 請求項1乃至8に記載の組織プローブにおいて、前記シュラウドが低導電特性材料でできていることを特徴とする組織プローブ。
- 請求項1乃至9のいずれかに記載の組織プローブにおいて、前記シュラウドが、圧縮力がないときに拡張するようにあらかじめ形作られていることを特徴とする組織プローブ。
- 請求項1乃至9のいずれかに記載の組織プローブにおいて、前記シュラウドが半径方向の力がかかったときに拡張するように構成されていることを特徴とする組織プローブ。
- 請求項1乃至11のいずれかに記載の組織プローブにおいて、前記細長部材がカテーテルを具えることを特徴とする組織プローブ。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/660,822 US7438714B2 (en) | 2003-09-12 | 2003-09-12 | Vacuum-based catheter stabilizer |
PCT/US2004/028733 WO2005032388A1 (en) | 2003-09-12 | 2004-09-03 | Tissue probe assembly with vacuum-based stabilizer |
Publications (2)
Publication Number | Publication Date |
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JP2007504896A JP2007504896A (ja) | 2007-03-08 |
JP4658049B2 true JP4658049B2 (ja) | 2011-03-23 |
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JP2006526193A Expired - Fee Related JP4658049B2 (ja) | 2003-09-12 | 2004-09-03 | 真空ベースのスタビライザ付組織プローブアッセンブリ |
Country Status (6)
Country | Link |
---|---|
US (1) | US7438714B2 (ja) |
EP (1) | EP1663042B1 (ja) |
JP (1) | JP4658049B2 (ja) |
AT (1) | ATE530135T1 (ja) |
CA (1) | CA2538496A1 (ja) |
WO (1) | WO2005032388A1 (ja) |
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Also Published As
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WO2005032388A1 (en) | 2005-04-14 |
US20050065506A1 (en) | 2005-03-24 |
EP1663042B1 (en) | 2011-10-26 |
EP1663042A1 (en) | 2006-06-07 |
ATE530135T1 (de) | 2011-11-15 |
JP2007504896A (ja) | 2007-03-08 |
US7438714B2 (en) | 2008-10-21 |
CA2538496A1 (en) | 2005-04-14 |
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