JP7764483B2 - 不可逆的エレクトロポレーションアブレーションのための電圧制御パルスシーケンス - Google Patents
不可逆的エレクトロポレーションアブレーションのための電圧制御パルスシーケンスInfo
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- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/14—Probes or electrodes therefor
- A61B18/1492—Probes or electrodes therefor having a flexible, catheter-like structure, e.g. for heart ablation
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- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/1206—Generators therefor
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- A61B17/00—Surgical instruments, devices or methods
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- A61B2017/00137—Details of operation mode
- A61B2017/00154—Details of operation mode pulsed
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- A61B2017/00137—Details of operation mode
- A61B2017/00154—Details of operation mode pulsed
- A61B2017/00172—Pulse trains, bursts, intermittent continuous operation
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- A61B2017/00137—Details of operation mode
- A61B2017/00154—Details of operation mode pulsed
- A61B2017/00181—Means for setting or varying the pulse energy
- A61B2017/00185—Means for setting or varying the pulse height
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- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00571—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for achieving a particular surgical effect
- A61B2018/00577—Ablation
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00571—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for achieving a particular surgical effect
- A61B2018/00613—Irreversible electroporation
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00636—Sensing and controlling the application of energy
- A61B2018/00696—Controlled or regulated parameters
- A61B2018/00767—Voltage
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- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00636—Sensing and controlling the application of energy
- A61B2018/00773—Sensed parameters
- A61B2018/00827—Current
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00636—Sensing and controlling the application of energy
- A61B2018/00773—Sensed parameters
- A61B2018/00875—Resistance or impedance
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00636—Sensing and controlling the application of energy
- A61B2018/00773—Sensed parameters
- A61B2018/00892—Voltage
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Description
例4は、第1のパルス電圧が、第1の治療セクションの間に測定された複数の第1の電気パルスの1つまたは複数のパルス電圧を備える、例3に記載のエレクトロポレーションアブレーションシステムである。
例8は、制御されたパルス電圧と充電電圧との比が、第1の組織インピーダンスに関連付けられている、例7に記載のエレクトロポレーションアブレーションシステムである。
例11は、スキャン電気パルスシーケンスが、単一の非切除電気パルスを含む、例9に記載のエレクトロポレーションアブレーションシステムである。
例19は、第1のパルス電圧が、第1の治療セクションの間に測定された複数の第1の電気パルスの1つまたは複数のパルス電圧を備える、例18に記載のエレクトロポレーションアブレーションシステムである。
例23は、制御されたパルス電圧と充電電圧との比が、第1の組織インピーダンスに関連付けられている、例22に記載のエレクトロポレーションアブレーションシステムである。
例26は、スキャン電気パルスシーケンスが、単一の非切除電気パルスを含む、例24に記載のエレクトロポレーションアブレーションシステムである。
複数の実施形態が開示されているが、本発明の例示的な実施形態を示し説明する以下の詳細な説明から、本発明のさらに他の実施形態が当業者に明らかになるであろう。したがって、図面および詳細な説明は、本質的に例示的なものであり、限定的なものではないとみなされるべきである。
以下に、本開示に含まれる技術思想を付記として記載する。
(付記1)
患者の標的組織を処置するためのエレクトロポレーションアブレーションシステムであって、
複数の治療セクションにおいて送出される複数の電気パルスシーケンスに応答して前記標的組織において電界を生成するように構成されたカテーテル電極を含むアブレーションカテーテルと、
前記複数の治療セクションのうちの第1の治療セクションの間に測定された第1の電気パルスシーケンスの第1のパルス電圧を受信し、前記第1のパルス電圧に基づいて充電電圧を決定するように構成されたコントローラと、
前記カテーテル電極および前記コントローラに動作可能に結合されたエレクトロポレーション生成器と
を備え、前記エレクトロポレーション生成器は、前記複数の治療セクションのうちの第2の治療セクションに対して、制御されたパルス電圧で第2の電気パルスシーケンスを送出するように構成されており、前記第2の治療セクションは、前記第1の治療セクションの後にあり、前記制御されたパルス電圧は、前記充電電圧に関連付けられている、エレクトロポレーションアブレーションシステム。
(付記2)
前記エレクトロポレーション生成器は、キャパシタバンクを含み、前記エレクトロポレーション生成器は、前記第2の治療セクションの開始前に前記キャパシタバンクを前記充電電圧の電圧レベルまで充電するように構成されている、付記1に記載のエレクトロポレーションアブレーションシステム。
(付記3)
前記第1の電気パルスシーケンスは、複数の第1の電気パルスを含む、付記1または2に記載のエレクトロポレーションアブレーションシステム。
(付記4)
前記第1のパルス電圧は、前記第1の治療セクションの間に測定された前記複数の第1の電気パルスの1つまたは複数のパルス電圧を備える、付記3に記載のエレクトロポレーションアブレーションシステム。
(付記5)
前記コントローラは、前記第1の治療セクションの間に送出される前記第1の電気パルスシーケンスの第1のパルス電流を受信するようにさらに構成され、前記コントローラは、前記第1のパルス電圧および前記第1のパルス電流に基づいて前記充電電圧を決定するようにさらに構成されている、付記1~4のいずれか一項に記載のエレクトロポレーションアブレーションシステム。
(付記6)
前記コントローラは、前記第1のパルス電圧および前記第1のパルス電流に基づいて第1の組織インピーダンスを決定するようにさらに構成されている、付記5に記載のエレクトロポレーションアブレーションシステム。
(付記7)
前記制御されたパルス電圧は、前記充電電圧の一部である、付記6に記載のエレクトロポレーションアブレーションシステム。
(付記8)
前記制御されたパルス電圧と前記充電電圧との比が、前記第1の組織インピーダンスに関連付けられている、付記7に記載のエレクトロポレーションアブレーションシステム。
(付記9)
前記エレクトロポレーション生成器は、前記複数の治療セクションの前のスキャンセクションの間にスキャン電圧でスキャン電気パルスシーケンスを送出するようにさらに構成され、前記コントローラは、前記スキャンセクションの間に測定された、前記スキャン電気パルスシーケンスの初期パルス電圧および前記スキャン電気パルスシーケンスの初期パルス電流に基づいて、初期組織インピーダンスを決定するようにさらに構成され、前記コントローラは、前記初期組織インピーダンスに基づいて初期充電電圧を決定するようにさらに構成されている、付記1~8のいずれか一項に記載のエレクトロポレーションアブレーションシステム。
(付記10)
前記スキャン電圧は、前記制御されたパルス電圧よりも小さい、付記9に記載のエレクトロポレーションアブレーションシステム。
(付記11)
前記スキャン電気パルスシーケンスは、単一の非切除電気パルスを含む、付記9に記載のエレクトロポレーションアブレーションシステム。
(付記12)
前記アブレーションカテーテルは、カテーテルバスケットを含み、前記カテーテル電極は、前記カテーテルバスケットの外周に配置された第1の電極群と、前記カテーテルバスケットの遠位端に隣接して配置された第2の電極群とを含む、付記1~11のいずれか一項に記載のエレクトロポレーションアブレーションシステム。
(付記13)
前記第1の電極群の電極は、互いに離隔されており、前記第2の電極群の電極は、互いに離隔されている、付記12に記載のエレクトロポレーションアブレーションシステム。
(付記14)
前記第1の電極群の各電極は、アノードまたはカソードとして構成することができ、前記第2の電極群の各電極は、前記第1の電極群の電極とは反対の極性を有するように構成することができる、付記13に記載のエレクトロポレーションアブレーションシステム。
(付記15)
前記カテーテルバスケットは、複数のスプラインを備え、各スプラインは、前記第1の電極群の電極のうちの少なくとも1つと、前記第2の電極群の電極のうちの少なくとも1つとを含む、付記12~14のいずれか一項に記載のエレクトロポレーションアブレーションシステム。
Claims (11)
- 患者の標的組織を処置するためのエレクトロポレーションアブレーションシステムであって、
生成器インピーダンスを有するエレクトロポレーション生成器と、
複数の治療セクションにおいて送出される複数の電気パルスシーケンスに応答して前記標的組織において電界を生成するように構成されたカテーテル電極を含むアブレーションカテーテルと、
前記複数の治療セクションのうちの第1の治療セクションの間に測定された第1の電気パルスシーケンスの第1のパルス電圧を受信し、前記第1のパルス電圧、前記生成器インピーダンス、および前記標的組織のインピーダンスに基づいてキャパシタバンクの充電電圧を決定するように構成されたコントローラと
を備え、
前記エレクトロポレーション生成器は、前記カテーテル電極および前記コントローラに動作可能に結合され、前記エレクトロポレーション生成器は、前記キャパシタバンクを前記充電電圧まで充電し、次いで、前記複数の治療セクションのうちの第2の治療セクションに対して、制御されたパルス電圧で第2の電気パルスシーケンスを送出するように構成されている、エレクトロポレーションアブレーションシステム。 - 前記コントローラは、前記第1の治療セクションの間に送出される前記第1の電気パルスシーケンスの第1のパルス電流を受信するようにさらに構成されている、請求項1に記載のエレクトロポレーションアブレーションシステム。
- 前記コントローラは、前記第1のパルス電圧および前記第1のパルス電流に基づいて前記標的組織のインピーダンスを決定するようにさらに構成されている、請求項2に記載のエレクトロポレーションアブレーションシステム。
- 前記コントローラは、前記キャパシタバンクの前記充電電圧を、式:
を用いて決定するようにさらに構成されており、前記式中、電圧 充電 は前記充電電圧であり、電圧 パルス は前記第1のパルス電圧であり、インピーダンス 生成器 は前記生成器インピーダンスであり、インピーダンス 組織 は前記標的組織のインピーダンスである、請求項1に記載のエレクトロポレーションアブレーションシステム。 - 前記エレクトロポレーション生成器は、前記複数の治療セクションの前のスキャンセクションの間にスキャン電圧でスキャン電気パルスシーケンスを送出するようにさらに構成されている、請求項1~4のいずれか一項に記載のエレクトロポレーションアブレーションシステム。
- 前記スキャン電圧は、前記制御されたパルス電圧よりも小さい、請求項5に記載のエレクトロポレーションアブレーションシステム。
- 前記スキャン電気パルスシーケンスは、単一の非切除電気パルスを含む、請求項5に記載のエレクトロポレーションアブレーションシステム。
- 前記アブレーションカテーテルは、カテーテルバスケットを含み、前記カテーテル電極は、前記カテーテルバスケットの外周に配置された第1の電極群と、前記カテーテルバスケットの遠位端に隣接して配置された第2の電極群とを含む、請求項1~7のいずれか一項に記載のエレクトロポレーションアブレーションシステム。
- 前記第1の電極群の電極は、互いに離隔されており、前記第2の電極群の電極は、互いに離隔されている、請求項8に記載のエレクトロポレーションアブレーションシステム。
- 前記第1の電極群の各電極は、アノードまたはカソードとして構成することができ、前記第2の電極群の各電極は、前記第1の電極群の電極とは反対の極性を有するように構成することができる、請求項9に記載のエレクトロポレーションアブレーションシステム。
- 前記カテーテルバスケットは、複数のスプラインを備え、各スプラインは、前記第1の電極群の電極のうちの少なくとも1つと、前記第2の電極群の電極のうちの少なくとも1つとを含む、請求項8~10のいずれか一項に記載のエレクトロポレーションアブレーションシステム。
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| CN117150798B (zh) * | 2023-09-11 | 2024-06-04 | 天津市鹰泰利安康医疗科技有限责任公司 | 不可逆电穿孔脉冲消融的电极构建方法及系统 |
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| WO2022164750A1 (en) | 2022-08-04 |
| US20220233237A1 (en) | 2022-07-28 |
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| US12343071B2 (en) | 2025-07-01 |
| JP2024504184A (ja) | 2024-01-30 |
| JP2026009208A (ja) | 2026-01-19 |
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