JP7525655B2 - 不可逆的電気穿孔法によるアブレーションのためのユーザインタフェースへの動的空間データのオーバレイ - Google Patents
不可逆的電気穿孔法によるアブレーションのためのユーザインタフェースへの動的空間データのオーバレイ Download PDFInfo
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Description
実施態様3は実施態様1及び2の何れか1つのシステムであり、コントローラは、解剖学的マップ上の電界のグラフィック表示内に少なくとも1つの電界線を含め、かつ、解剖学的マップ上の電界のグラフィック表示内に少なくとも1つの電界強度閾値線を含めるように構成される。
実施態様25は電気穿孔法によるアブレーションのためのシステムである。システムは、電極を有するカテーテルとコントローラを含む。コントローラは、カテーテルの特性に基づいて電界のモデルを発生させ、電界のモデルを使って電界のグラフィック表示を生成し、患者の解剖学的マップ上に電界のグラフィック表示を表示して、エネルギを送達する前に電気穿孔法によるアブレーションの計画を支援するように構成される。
実施態様33は実施態様30の方法であり、解剖学的マップ上の電界のグラフィック表示内に少なくとも1つの電界線を表示するステップと、解剖学的マップ上の電界のグラフィック表示内に少なくとも1つの電界強度閾値線を表示するステップとを含む。
Claims (11)
- 不可逆的電気穿孔法による心臓組織のアブレーションのためのシステムであって、
電極を有するカテーテルと、
ディスプレイと、
コントローラと、を備え、前記コントローラは、
患者の心臓の解剖学的マップを前記ディスプレイに表示し、
電界モデルに基づいて、前記電極に電気パルスが印加される際に電界のグラフィック表示を生成し、
前記電極に前記電気パルスを送達する前に電気穿孔法による前記アブレーションの計画を支援するために、前記解剖学的マップ上に前記電界の前記グラフィック表示を前記ディスプレイ上においてオーバレイすることであって、前記オーバレイは、心臓組織の心内膜表面への不可逆的電気穿孔法による組織のアブレーションに十分な電界強度を有する前記電界の交差部分の表示を含む
ように構成される、システム。 - 前記コントローラは、前記カテーテルの特性に基づいて前記電界の前記グラフィック表示を生成するように構成される、請求項1に記載のシステム。
- 前記コントローラは、前記解剖学的マップ上の前記電界の前記グラフィック表示内に少なくとも1つの電界線を含め、かつ、前記解剖学的マップ上の前記電界の前記グラフィック表示内に少なくとも1つの電界強度閾値線を含めるように構成される、請求項1又は2に記載のシステム。
- 前記コントローラは、1センチメートルあたり200~250ボルトの範囲内の可逆的電界強度閾値線、不可逆的電気穿孔法のための1センチメートルあたり400ボルトの臨界電界強度閾値線、及び1センチメートルあたり1000ボルトの極大電界強度閾値線のうちの少なくとも1つを含めるように構成される、請求項1~3の何れか1項に記載のシステム。
- 前記コントローラは、前記電界の前記グラフィック表示内に電界強度閾値線が周辺組織と交差した箇所のマーキングを含めるように構成される、請求項1~4の何れか1項に記載のシステム。
- 前記コントローラは、前記電界の前記グラフィック表示内に可逆的電気穿孔法の予想ゾーン及び不可逆的電気穿孔法の予想ゾーンの少なくとも一方を含めるように構成される、請求項1~5の何れか1項に記載のシステム。
- 前記コントローラは、前記電界の前記グラフィック表示内において前記電界が過去に作られた創傷と交差する箇所と前記電界の前記グラフィック表示内において前記電界が予想される創傷とに少なくとも1つのマーキングを含めるように構成される、請求項1~6の何れか1項に記載のシステム。
- 不可逆的電気穿孔法による心臓組織のアブレーションの計画方法であって、
患者の心臓の解剖学的マップをディスプレイに表示するステップと、
コントローラによって、かつ、電界モデルに基づいて、カテーテルの電極に電気パルスが印加される際に発生させることのできる電界のグラフィック表示のオーバレイを生成するステップと、
前記解剖学的マップ上の前記電界の前記グラフィック表示のオーバレイを前記ディスプレイに表示して、前記電極に前記電気パルスを送達する前に電気穿孔法による前記アブレーションの計画を支援するステップであって、前記オーバレイは、心臓組織の心内膜表面への不可逆的電気穿孔法による組織のアブレーションに十分な電界強度を有する前記電界の交差部分の表示を含むステップと、
を備える方法。 - 前記解剖学的マップ上の前記電界の前記グラフィック表示内に少なくとも1つの電界線を表示するステップと、前記解剖学的マップ上の前記電界の前記グラフィック表示内に少なくとも1つの電界強度閾値線を表示するステップとを備える、請求項8に記載の方法。
- 電界強度閾値線が周辺組織と交差する箇所のマーキングを表示するステップ、可逆的電気穿孔の予想ゾーンを表示するステップ、不可逆的電気穿孔の予想ゾーンを表示するステップ、前記電界が過去に作られた創傷と交差する箇所のマーキングを表示するステップ、前記解剖学的マップ上に予想される創傷を表示するステップのうちの1つ以上を備える、請求項8又は9に記載の方法。
- 前記コントローラにより、
周辺組織に関する前記カテーテルの位置の変化、
前記カテーテルの変化、
前記カテーテルの前記電極に提供されることになるパルスパラメータの変化、及び
前記周辺組織のインピーダンス測定値の変化
のうちの1つ以上に基づいて、前記電界の前記グラフィック表示を動的に変更するステップを備える、請求項8~10の何れか1項に記載の方法。
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US12076071B2 (en) | 2020-08-14 | 2024-09-03 | Kardium Inc. | Systems and methods for treating tissue with pulsed field ablation |
US20230088042A1 (en) * | 2021-09-20 | 2023-03-23 | Biosense Webster (Israel) Ltd. | Ablating a region of patient organ using selected ablation electrodes of an expandable catheter |
WO2023192863A1 (en) * | 2022-03-29 | 2023-10-05 | Medtronic, Inc. | Directed pulsed electric field ablation |
WO2024118327A1 (en) * | 2022-12-01 | 2024-06-06 | Boston Scientific Scimed, Inc. | Annotation for electroporation ablation |
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