JP2013144116A - 調節可能インピーダンス電気外科用電極 - Google Patents
調節可能インピーダンス電気外科用電極 Download PDFInfo
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Abstract
【解決手段】電気外科用システムであって:連続した形態の抵抗性要素と容量性要素を有する少なくとも1つの電気外科用電極;および該連続した容量性要素の容量性リアクタンスに起因して該少なくとも1つの電極中に第1のインピーダンスを生成する第1の周波数を有する電気外科用エネルギーを生成するような形態の電気外科用電源20であって、さらに、該第1の周波数を、該連続した容量性要素の容量性リアクタンスに起因して該少なくとも1つの電極中に異なるインピーダンスを生成する少なくとも1つの他の周波数に調節し、それによって該少なくとも1つの電気外科用電極の温度を調節するような形態である電源20、を備える、電気外科用システム。
【選択図】図3
Description
(技術分野)
本開示は、電気外科用装置、システムおよび方法に関する。より詳細には、本開示は、電気外科用電極に関し、この電極を通過する電気外科用エネルギーの周波数に応答してインピーダンスが変動するような形態である。
エネルギーを基礎にした組織の処理は当該技術分野では周知である。種々のタイプのエネルギー(例えば、電気、超音波、マイクロ波、冷凍、熱、レーザーなど)が組織に付与されて所望の結果を達成する。電気外科は、手術部位に対する高周波電流の付与を含み、組織を切断、切除(アブレーション)、凝固またはシールする。単極電気外科では、供給電極または能動電極が、電気外科用電源から組織に高周波エネルギーを送達し、そして戻り電極がこの電流を電源に運んで戻す。単極電気外科では、供給電極は、代表的には、外科医によって保持され、そして処置される組織に適用される外科用器具の一部である。患者戻り電極は、能動電極から遠隔に配置され、電流を電源に運んで戻す。
(項目A1)電気外科用システムであって:
連続した形態の抵抗性要素と容量性要素を有する少なくとも1つの電気外科用電極;および
その連続した容量性要素の容量性リアクタンスに起因してその少なくとも1つの電極中に第1のインピーダンスを生成する第1の周波数を有する電気外科用エネルギーを生成するような形態の電気外科用電源であって、さらに、その第1の周波数を、その連続した容量性要素の容量性リアクタンスに起因してその少なくとも1つの電極中に異なるインピーダンスを生成する少なくとも1つの他の周波数に調節し、それによってその少なくとも1つの電気外科用電極の温度を調節するような形態である電源、を備える、電気外科用システム。
(項目A2)上記第1の周波数が上記少なくとも1つの他の周波数より小さく、そして上記第1の対応するインピーダンスが、上記第2の対応するインピーダンスより高い、項目A1に記載の電気外科用システム。
(項目A3)上記容量性要素が、容量性層である、項目A1〜2のいずれかに記載の電気外科用システム。
(項目A4)上記容量性層が、上記少なくとも1つの電気外科用電極の外側伝導性面上に配置される、項目A3に記載の電気外科用システム。
(項目A5)上記容量性層が、上記少なくとも1つの電気外科用電極の最も内側の伝導性面上に配置される、項目A3に記載の電気外科用システム。
(項目A6)上記エネルギーの周波数が、上記少なくとも1つの電気外科用電極によって生成される熱の量に反比例する、項目A1〜5のいずれかに記載の電気外科用システム。
(項目A7)上記容量性要素が、アルミニウム、二酸化チタン、酸化チタン、酸化タンタル、酸化アルミニウム、およびチタン酸バリウムからなる群から選択される、項目A1〜6のいずれか1項に記載の電気外科用システム。
(項目A8)電気外科用システムであって:
組織をシールするための電気外科用鉗子であってその遠位端に配置された端部エフェクターアセンブリを有する少なくとも1つのシャフト部材を含み、その端部エフェクターアセンブリが顎部材を含み、その顎部材が互いに対して間隔を置いた関係にある第1の位置からその顎部材の間に組織を握るよう協働する少なくとも1つの次の位置まで移動可能であり、ここで、その顎部材の各々がそれらの間に保持された組織を通って電気外科用エネルギーを伝達するシーリングプレートを含み、そのシーリングプレートの各々が連続した抵抗性要素と容量性要素を有する電気外科用鉗子;および
その連続した容量性要素の容量性リアクタンスに起因してそのシーリングプレートの少なくとも1つ中に第1のインピーダンスを生成する第1の周波数を有する電気外科用エネルギーを生成するような形態の電気外科用電源であって、さらに、その第1の周波数を、その連続した容量性要素の容量性リアクタンスに起因してそのシーリングプレートの少なくとも1つ中に異なるインピーダンスを生成する少なくとも1つの他の周波数に調節し、それによってそのシーリングプレートの少なくとも1つの温度を調節するような形態である電源、を備える、電気外科用システム。
(項目A9)上記容量性要素が、各シーリングプレートの外側伝導性面上に配置される、項目A8に記載の電気外科用システム。
(項目A10)上記容量性要素が、各シーリングプレートの最も内側の伝導性面上に配置される、項目A8に記載の電気外科用システム。
(項目A11)上記エネルギーの周波数が、上記少なくとも1つの電気外科用電極によって生成される熱の量に反比例する、項目A8、9、または10に記載の電気外科用システム。
(項目A12)上記容量性要素が、アルミニウム、二酸化チタン、酸化チタン、酸化タンタル、酸化アルミニウム、およびチタン酸バリウムからなる群から選択される、項目A8、9、10、または11に記載の電気外科用システム。
(項目B1)電気外科用システムであって:
連続した形態の抵抗性要素と容量性要素を有する少なくとも1つの電気外科用電極;および
その連続した容量性要素の容量性リアクタンスに起因してその少なくとも1つの電極中に第1のインピーダンスを生成する第1の周波数を有する電気外科用エネルギーを生成するような形態の電気外科用電源であって、さらに、その第1の周波数を、その連続した容量性要素の容量性リアクタンスに起因してその少なくとも1つの電極中に異なるインピーダンスを生成する少なくとも1つの他の周波数に調節し、それによってその少なくとも1つの電気外科用電極の温度を調節するような形態である電源、を備える、電気外科用システム。
(項目B2)上記第1の周波数が上記少なくとも1つの他の周波数より小さく、そして上記第1の対応するインピーダンスが、上記第2の対応するインピーダンスより高い、項目B1に記載の電気外科用システム。
(項目B3)上記容量性要素が、容量性層である、項目B1に記載の電気外科用システム。
(項目B4)上記容量性層が、上記少なくとも1つの電気外科用電極の外側伝導性面上に配置される、項目B3に記載の電気外科用システム。
(項目B5)上記容量性層が、上記少なくとも1つの電気外科用電極の最も内側の伝導性面上に配置される、項目B3に記載の電気外科用システム。
(項目B6)上記エネルギーの周波数が、上記少なくとも1つの電気外科用電極によって生成される熱の量に反比例する、項目B1に記載の電気外科用システム。
(項目B7)上記容量性要素が、アルミニウム、二酸化チタン、酸化チタン、酸化タンタル、酸化アルミニウム、およびチタン酸バリウムからなる群から選択される、項目B1に記載の電気外科用システム。
(項目B8)電気外科用システムであって:
組織をシールするための電気外科用鉗子であってその遠位端に配置された端部エフェクターアセンブリを有する少なくとも1つのシャフト部材を含み、その端部エフェクターアセンブリが顎部材を含み、その顎部材が互いに対して間隔を置いた関係にある第1の位置からその顎部材の間に組織を握るよう協働する少なくとも1つの次の位置まで移動可能であり、ここで、その顎部材の各々がそれらの間に保持された組織を通って電気外科用エネルギーを伝達するシーリングプレートを含み、そのシーリングプレートの各々が連続した抵抗性要素と容量性要素を有する電気外科用鉗子;および
その連続した容量性要素の容量性リアクタンスに起因してそのシーリングプレートの少なくとも1つ中に第1のインピーダンスを生成する第1の周波数を有する電気外科用エネルギーを生成するような形態の電気外科用電源であって、さらに、その第1の周波数を、その連続した容量性要素の容量性リアクタンスに起因してそのシーリングプレートの少なくとも1つ中に異なるインピーダンスを生成する少なくとも1つの他の周波数に調節し、それによってそのシーリングプレートの少なくとも1つの温度を調節するような形態である電源、を備える、電気外科用システム。
(項目B9)上記容量性要素が、各シーリングプレートの外側伝導性面上に配置される、項目B8に記載の電気外科用システム。
(項目B10)上記容量性要素が、各シーリングプレートの最も内側の伝導性面上に配置される、項目B8に記載の電気外科用システム。
(項目B11)上記エネルギーの周波数が、上記少なくとも1つの電気外科用電極によって生成される熱の量に反比例する、項目B8に記載の電気外科用システム。
(項目B12)上記容量性要素が、アルミニウム、二酸化チタン、酸化チタン、酸化タンタル、酸化アルミニウム、およびチタン酸バリウムからなる群から選択される、項目B8に記載の電気外科用システム。
(項目B13)電気外科的手順を実施する方法であって:
連続した形態の抵抗性要素および容量性要素を有する少なくとも1つの電気外科用電極を提供する工程;
その連続した容量性要素の容量性リアクタンスに起因してその少なくとも1つの電極中に第1のインピーダンスを生成する第1の周波数を有する電気外科用エネルギーを生成する工程;および
その第1の周波数を、その連続した容量性要素の容量性リアクタンスに起因してその少なくとも1つの電極中に異なるインピーダンスを生成する少なくとも1つの他の周波数に調節する工程、を包含する、方法。
(項目B14)上記第1の周波数を、少なくとも1つの他の周波数に低下し、上記少なくとも1つの電気外科用電極の温度を増加する工程をさらに包含する、項目B11に記載の電気外科的手順を実施する方法。
(項目B15)上記第1の周波数を、少なくとも1つの他の周波数に増加し、上記少なくとも1つの電気外科用電極の温度を減少する工程をさらに包含する、項目B11に記載の電気外科的手順を実施する方法。
本開示は、単極および双極電気外科用システム中の能動電極および戻り電極のインピーダンスを調節するためのシステムおよび方法に関する。これら電極は、容量性要素および抵抗性要素を含み、そしてそれ故、高周波電気外科用エネルギーの存在下で可変抵抗を有するコンデンサーとして作用する。これら電極のインピーダンスは、周波数および/または相角度を制御することによって調節される。さらに、これら調節は、タイマー、温度、組織乾燥レベルおよび組織壁インピーダンスによって誘因される種々のスイッチを経由してなされ得る。
本開示の特定の実施形態を、添付の図面を参照して本明細書中で以下に説明する。以下の説明では、本開示を不必要な詳細で不明確にすることを避けるために周知の機能および構築は詳細には説明されない。
電気外科用システムが開示される。この電気外科用システムは、連続した形態の抵抗性要素と容量性要素を有する少なくとも1つの電気外科用電極を含む。この電気外科用システムはまた、上記連続した容量性要素の容量性リアクタンスに起因して上記少なくとも1つの電極中に第1のインピーダンスを生成する第1の周波数を有する電気外科用エネルギーを生成するような形態の電気外科用電源を含む。この電源は、さらに、上記第1の周波数を、上記連続した容量性要素の容量性リアクタンスに起因して上記少なくとも1つの電極中に異なるインピーダンスを生成する少なくとも1つの他の周波数に調節し、それによって上記少なくとも1つの電気外科用電極の温度を調節するような形態である。
20 電源
30 能動端子
55、56、57 レジスター
51、52、54 容量性要素
112、122 シーリングプレート
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US (1) | US8777941B2 (ja) |
EP (1) | EP1990019B1 (ja) |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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KR20210137537A (ko) * | 2019-03-29 | 2021-11-17 | 콘메드 코포레이션 | 고 유전율 전기 수술 전극 코팅 |
JP2022526921A (ja) * | 2019-03-29 | 2022-05-27 | コンメッド コーポレーション | 高誘電率電気外科手術用電極コーティング |
KR102630290B1 (ko) | 2019-03-29 | 2024-01-29 | 콘메드 코포레이션 | 고 유전율 전기 수술 전극 코팅 |
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JP2008279254A (ja) | 2008-11-20 |
JP5719392B2 (ja) | 2015-05-20 |
AU2008202047A1 (en) | 2008-11-27 |
EP1990019A3 (en) | 2009-03-04 |
JP2015071062A (ja) | 2015-04-16 |
CA2630650A1 (en) | 2008-11-10 |
US8777941B2 (en) | 2014-07-15 |
EP1990019B1 (en) | 2015-12-02 |
AU2008202047B9 (en) | 2013-09-19 |
US20080281316A1 (en) | 2008-11-13 |
AU2008202047B2 (en) | 2013-05-23 |
EP1990019A2 (en) | 2008-11-12 |
JP5294692B2 (ja) | 2013-09-18 |
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