JP6537222B2 - 位相シフト型インバータの波高率制御 - Google Patents
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Description
本開示は、電気外科ジェネレータを操作するための電気外科システムおよび方法に関する。より詳細には、本開示は、アーク切断および凝固に対して適切である無線周波共振インバータによって生成される電気外科波形を制御するためのシステム、方法、および装置に関する。
電気外科は、組織を切断し、切除し、または凝固させるために、外科手術部位に高無線周波電流を印加することを含む。単極電気外科において、源または活性電極は、電気外科ジェネレータからの無線周波交流を標的の組織へ送達し、リターン電極は、電流をジェネレータへ戻す。患者リターン電極は、ジェネレータに電流を戻すために、活性電極から遠く離して配置される。
(項目1)
電気外科ジェネレータであって、該電気外科ジェネレータは、
電源と結合されているRFインバータを備えたRF出力ステージであって、該RF出力ステージは、選択されたエネルギー設定で、少なくとも1つの電気外科波形を生成するように構成され、該少なくとも1つの電気外科波形は、デューティサイクルと波高率とを有する、RF出力ステージと、
該選択されたエネルギー設定に基づいて、該少なくとも1つの電気外科波形の繰り返し速度を調節することにより、該少なくとも1つの電気外科波形の該デューティサイクルを調整するように構成されているコントローラと、
該少なくとも1つの電気外科波形の出力電圧を測定するように構成されているセンサと
を備え、該コントローラは、該出力電圧が増大しつつある場合、該繰り返し速度に基づいて、該RFインバータに制御信号を供給することにより、該少なくとも1つの電気外科波形の該波高率を調整するように構成されている、
電気外科ジェネレータ。
(項目2)
上記コントローラは、上記出力電圧のピーク値を計算し、該出力電圧が該ピーク値に到達する前に、上記RFインバータに上記制御信号を供給するようにさらに構成されている、上記項目のいずれか一項に記載の電気外科ジェネレータ。
(項目3)
上記出力電圧の上記ピーク値は、上記RFインバータに上記制御信号を上記供給することに基づいて変更される、上記項目のいずれか一項に記載の電気外科ジェネレータ。
(項目4)
上記エネルギー設定は、電力、電流、および電圧のうちの少なくとも1つである、上記項目のいずれか一項に記載の電気外科ジェネレータ。
(項目5)
上記RFインバータは、上記コントローラと結合されている少なくとも1つの切り換え素子を備えている、上記項目のいずれか一項に記載の電気外科ジェネレータ。
(項目6)
上記制御信号は、上記少なくとも1つの切り換え素子を制御するためにパルス幅変調型ドライバによって生成される位相シフトされた駆動信号である、上記項目のいずれか一項に記載の電気外科ジェネレータ。
(項目7)
上記コントローラは、上記少なくとも1つの電気外科波形の上記繰り返し速度を増大させることにより、該少なくとも1つの電気外科波形のデューティサイクルを減少させるように構成されている、上記項目のいずれか一項に記載の電気外科ジェネレータ。
(項目8)
電気外科システムであって、該電気外科システムは、
電気外科ジェネレータを備え、該電気外科ジェネレータは、
電源と結合されているRFインバータを備えたRF出力ステージであって、該RF出力ステージは、選択されたエネルギー設定で、少なくとも1つの電気外科波形を生成するように構成され、該少なくとも1つの電気外科波形は、デューティサイクルと波高率とを有する、RF出力ステージと、
該選択されたエネルギー設定に基づいて、該少なくとも1つの電気外科波形の繰り返し速度を調節することにより、該少なくとも1つの電気外科波形の該デューティサイクルを調整するように構成されているコントローラと、
該少なくとも1つの電気外科波形の出力電圧を測定するように構成されているセンサと
を備え、該コントローラは、該出力電圧が増大しつつある場合、該繰り返し速度に基づいて、該RFインバータに制御信号を供給することにより、該少なくとも1つの電気外科波形の該波高率を調整するように構成されている、
電気外科システム。
(項目9)
上記コントローラは、上記出力電圧のピーク値を計算し、該出力電圧が該ピーク値に到達する前に、上記RFインバータに上記制御信号を供給するようにさらに構成されている、上記項目のいずれか一項に記載の電気外科システム。
(項目10)
上記出力電圧の上記ピーク値は、上記RFインバータに上記制御信号を上記供給することに基づいて変更される、上記項目のいずれか一項に記載の電気外科ジェネレータ。
(項目11)
上記エネルギー設定は、電力、電流、および電圧のうちの少なくとも1つである、上記項目のいずれか一項に記載の電気外科ジェネレータ。
(項目12)
上記RFインバータは、上記コントローラと結合されている少なくとも1つの切り換え素子を備えている、上記項目のいずれか一項に記載の電気外科システム。
(項目13)
上記制御信号は、上記少なくとも1つの切り換え素子を制御するためにパルス幅変調型ドライバによって生成される位相シフトされた駆動信号である、上記項目のいずれか一項に記載の電気外科システム。
(項目1A)
電気外科ジェネレータを制御する方法であって、該方法は、
選択されたエネルギー設定で、電源と結合されているRFインバータを備えたRF出力ステージを通して、少なくとも1つの電気外科波形を生成することであって、該少なくとも1つの電気外科波形は、デューティサイクルと波高率とを有する、ことと、
該選択されたエネルギー設定に基づいて、該少なくとも1つの電気外科波形の繰り返し速度を調節することにより、該少なくとも1つの電気外科波形の該デューティサイクルを調整することと、
少なくとも1つの電極を通して、組織に該少なくとも1つの電気外科波形を適用することと、
該少なくとも1つの電気外科波形の出力電圧を測定することと、
該出力電圧が増大しつつある場合、該繰り返し速度に基づいて、該RFインバータに制御信号を供給することにより、該少なくとも1つの電気外科波形の該波高率を調整することと
を含む、方法
(項目2A)
上記出力電圧のピーク値を計算することと、
該出力電圧が該ピーク値に到達する前に、上記RFインバータに上記制御信号を供給することと
をさらに含む、上記項目のいずれか一項に記載の方法。
(項目3A)
上記出力電圧の上記ピーク値は、上記RFインバータに上記制御信号を上記供給することに基づいて変更される、上記項目のいずれか一項に記載の方法。
(項目4A)
上記エネルギー設定は、電力、電流、および電圧のうちの少なくとも1つである、上記項目のいずれか一項に記載の方法。
(項目5A)
上記RFインバータは、コントローラと結合されている少なくとも1つの切り換え素子を備えている、上記項目のいずれか一項に記載の方法。
(項目6A)
上記制御信号は、上記少なくとも1つの切り換え素子を制御するためにパルス幅変調型ドライバによって生成される位相シフトされた駆動信号である、上記項目のいずれか一項に記載の方法。
(項目7A)
上記少なくとも1つの電気外科波形の上記繰り返し速度を増大させることにより、該少なくとも1つの電気外科波形のデューティサイクルを減少させることをさらに含む、上記項目のいずれか一項に記載の方法。
(項目8A)
電気外科ジェネレータであって、該電気外科ジェネレータは、
電源と結合されているRFインバータを備えたRF出力ステージであって、該RF出力ステージは、選択されたエネルギー設定で、少なくとも1つの電気外科波形を生成するように構成され、該少なくとも1つの電気外科波形は、デューティサイクルと波高率とを有する、RF出力ステージと、
該選択されたエネルギー設定に基づいて、該少なくとも1つの電気外科波形の繰り返し速度を調節することにより、該少なくとも1つの電気外科波形の該デューティサイクルを調整するように構成されているコントローラと、
該少なくとも1つの電気外科波形の出力電圧を測定するように構成されているセンサと
を備え、該コントローラは、該出力電圧が増大しつつある場合、該繰り返し速度に基づいて、該RFインバータに制御信号を供給することにより、該少なくとも1つの電気外科波形の該波高率を調整するように構成されている、
電気外科ジェネレータ。
(項目9A)
上記コントローラは、上記出力電圧のピーク値を計算し、該出力電圧が該ピーク値に到達する前に、上記RFインバータに上記制御信号を供給するようにさらに構成されている、上記項目のいずれか一項に記載の電気外科ジェネレータ。
(項目10A)
上記出力電圧の上記ピーク値は、上記RFインバータに上記制御信号を上記供給することに基づいて変更される、上記項目のいずれか一項に記載の電気外科ジェネレータ。
(項目11A)
上記エネルギー設定は、電力、電流、および電圧のうちの少なくとも1つである、上記項目のいずれか一項に記載の電気外科ジェネレータ。
(項目12A)
上記RFインバータは、上記コントローラと結合されている少なくとも1つの切り換え素子を備えている、上記項目のいずれか一項に記載の電気外科ジェネレータ。
(項目13A)
上記制御信号は、上記少なくとも1つの切り換え素子を制御するためにパルス幅変調型ドライバによって生成される位相シフトされた駆動信号である、上記項目のいずれか一項に記載の電気外科ジェネレータ。
(項目14A)
上記コントローラは、上記少なくとも1つの電気外科波形の上記繰り返し速度を増大させることにより、該少なくとも1つの電気外科波形のデューティサイクルを減少させるように構成されている、上記項目のいずれか一項に記載の電気外科ジェネレータ。
(項目15A)
電気外科システムであって、該電気外科システムは、
電気外科ジェネレータを備え、該電気外科ジェネレータは、
電源と結合されているRFインバータを備えたRF出力ステージであって、該RF出力ステージは、選択されたエネルギー設定で、少なくとも1つの電気外科波形を生成するように構成され、該少なくとも1つの電気外科波形は、デューティサイクルと波高率とを有する、RF出力ステージと、
該選択されたエネルギー設定に基づいて、該少なくとも1つの電気外科波形の繰り返し速度を調節することにより、該少なくとも1つの電気外科波形の該デューティサイクルを調整するように構成されているコントローラと、
該少なくとも1つの電気外科波形の出力電圧を測定するように構成されているセンサと
を備え、該コントローラは、該出力電圧が増大しつつある場合、該繰り返し速度に基づいて、該RFインバータに制御信号を供給することにより、該少なくとも1つの電気外科波形の該波高率を調整するように構成されている、
電気外科システム。
(項目16A)
上記コントローラは、上記出力電圧のピーク値を計算し、該出力電圧が該ピーク値に到達する前に、上記RFインバータに上記制御信号を供給するようにさらに構成されている、上記項目のいずれか一項に記載の電気外科システム。
(項目17A)
上記出力電圧の上記ピーク値は、上記RFインバータに上記制御信号を上記供給することに基づいて変更される、上記項目のいずれか一項に記載の電気外科ジェネレータ。
(項目18A)
上記エネルギー設定は、電力、電流、および電圧のうちの少なくとも1つである、上記項目のいずれか一項に記載の電気外科ジェネレータ。
(項目19A)
上記RFインバータは、上記コントローラと結合されている少なくとも1つの切り換え素子を備えている、上記項目のいずれか一項に記載の電気外科システム。
(項目20A)
上記制御信号は、上記少なくとも1つの切り換え素子を制御するためにパルス幅変調型ドライバによって生成される位相シフトされた駆動信号である、上記項目のいずれか一項に記載の電気外科システム。
電気外科ジェネレータを制御する方法は、選択されたエネルギー設定で、電源と結合されているRFインバータを備えたRF出力ステージを通して、少なくとも1つの電気外科波形を生成することを含む。該少なくとも1つの電気外科波形は、デューティサイクルと波高率とを有する。方法は、また、該選択されたエネルギー設定に基づいて、該少なくとも1つの電気外科波形の繰り返し速度を調節することにより、該少なくとも1つの電気外科波形の該デューティサイクルを調整することを含む。方法は、また、少なくとも1つの電極を通して、組織に該少なくとも1つの電気外科波形を適用することと、該少なくとも1つの電気外科波形の出力電圧を測定することとを含む。方法は、また、該出力電圧が増大しつつある場合、該繰り返し速度に基づいて、該RFインバータに制御信号を供給することにより、該少なくとも1つの電気外科波形の該波高率を調整することを含む。
本開示の特定の実施形態が、添付の図面を参照して、本明細書の以下に記述される。以下の説明において、周知の機能または構造は、不必要な詳細により本開示を不明確にすることを避けるために、詳細には記述されていない。
12 器具
13 活性電極
14 供給ライン
16 リターン電極パッド
18 リターンライン
110 電気外科鉗子
111 筐体
112 シャフト
113 顎部材
114 活性電極
115 顎部材
116 リターン電極
118 ケーブル
200 ジェネレータ
224 コントローラ
225 プロセッサ
226 メモリ
227 高電圧DC電力供給
228 RF出力ステージ
230 活性端子
232 リターン端子
Claims (13)
- 電気外科ジェネレータであって、該電気外科ジェネレータは、
電源と結合されているRFインバータを備えたRF出力ステージであって、該RF出力ステージは、選択されたエネルギー設定で、少なくとも1つの電気外科波形を生成し、該少なくとも1つの電気外科波形を負荷に供給するように構成され、該少なくとも1つの電気外科波形は、デューティサイクルと波高率とを有する、RF出力ステージと、
該選択されたエネルギー設定に基づいて、該少なくとも1つの電気外科波形の繰り返し速度を調節することにより、該少なくとも1つの電気外科波形の該デューティサイクルを特定の値よりも下であるように調整するように構成されているコントローラと、
該少なくとも1つの電気外科波形の出力電圧を測定するように構成されているセンサと
を備え、該コントローラは、該出力電圧が増大しつつある場合、該繰り返し速度に基づいて、該RFインバータに制御信号を供給することにより、該負荷のインピーダンスが減少するにつれて該少なくとも1つの電気外科波形の該出力電圧の波高率の変化を低減させるように該少なくとも1つの電気外科波形の該波高率を調整するように構成されている、
電気外科ジェネレータ。 - 前記コントローラは、前記出力電圧のピーク値を計算し、該出力電圧が該ピーク値に到達する前に、前記RFインバータに前記制御信号を供給するようにさらに構成されている、請求項1に記載の電気外科ジェネレータ。
- 前記出力電圧の前記ピーク値は、前記RFインバータに前記制御信号を前記供給することに基づいて変更される、請求項2に記載の電気外科ジェネレータ。
- 前記エネルギー設定は、電力、電流、および電圧のうちの少なくとも1つである、請求項1に記載の電気外科ジェネレータ。
- 前記RFインバータは、前記コントローラと結合されている少なくとも1つの切り換え素子を備えている、請求項1に記載の電気外科ジェネレータ。
- 前記制御信号は、前記少なくとも1つの切り換え素子を制御するためにパルス幅変調型ドライバによって生成される位相シフトされた駆動信号である、請求項5に記載の電気外科ジェネレータ。
- 前記コントローラは、前記少なくとも1つの電気外科波形の前記繰り返し速度を増大させることにより、該少なくとも1つの電気外科波形のデューティサイクルを減少させるように構成されている、請求項1に記載の電気外科ジェネレータ。
- 電気外科システムであって、該電気外科システムは、
電気外科ジェネレータを備え、該電気外科ジェネレータは、
電源と結合されているRFインバータを備えたRF出力ステージであって、該RF出力ステージは、選択されたエネルギー設定で、少なくとも1つの電気外科波形を生成し、該少なくとも1つの電気外科波形を負荷に供給するように構成され、該少なくとも1つの電気外科波形は、デューティサイクルと波高率とを有する、RF出力ステージと、
該選択されたエネルギー設定に基づいて、該少なくとも1つの電気外科波形の繰り返し速度を調節することにより、該少なくとも1つの電気外科波形の該デューティサイクルを特定の値よりも下であるように調整するように構成されているコントローラと、
該少なくとも1つの電気外科波形の出力電圧を測定するように構成されているセンサと
を備え、該コントローラは、該出力電圧が増大しつつある場合、該繰り返し速度に基づいて、該RFインバータに制御信号を供給することにより、該負荷のインピーダンスが減少するにつれて該少なくとも1つの電気外科波形の該出力電圧の波高率の変化を低減させるように該少なくとも1つの電気外科波形の該波高率を調整するように構成されている、
電気外科システム。 - 前記コントローラは、前記出力電圧のピーク値を計算し、該出力電圧が該ピーク値に到達する前に、前記RFインバータに前記制御信号を供給するようにさらに構成されている、請求項8に記載の電気外科システム。
- 前記出力電圧の前記ピーク値は、前記RFインバータに前記制御信号を前記供給することに基づいて変更される、請求項9に記載の電気外科システム。
- 前記エネルギー設定は、電力、電流、および電圧のうちの少なくとも1つである、請求項8に記載の電気外科システム。
- 前記RFインバータは、前記コントローラと結合されている少なくとも1つの切り換え素子を備えている、請求項8に記載の電気外科システム。
- 前記制御信号は、前記少なくとも1つの切り換え素子を制御するためにパルス幅変調型ドライバによって生成される位相シフトされた駆動信号である、請求項12に記載の電気外科システム。
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2013
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2014
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CA2845763C (en) | 2021-02-09 |
US9283028B2 (en) | 2016-03-15 |
CA2845763A1 (en) | 2014-09-15 |
JP2014180539A (ja) | 2014-09-29 |
AU2014200201A1 (en) | 2014-10-02 |
US20140276749A1 (en) | 2014-09-18 |
EP2777577B1 (en) | 2018-05-16 |
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