JP5085143B2 - インピーダンスフィードバックアルゴリズムにおける処理を終結するためのシステムおよび方法 - Google Patents
インピーダンスフィードバックアルゴリズムにおける処理を終結するためのシステムおよび方法 Download PDFInfo
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves
- A61B5/053—Measuring electrical impedance or conductance of a portion of the body
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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
- 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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- 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
- 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
- A61B18/1442—Probes having pivoting end effectors, e.g. forceps
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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
- A61B2018/00642—Sensing and controlling the application of energy with feedback, i.e. closed loop control
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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
- A61B2018/00666—Sensing and controlling the application of energy using a threshold value
-
- 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
- A61B2018/00666—Sensing and controlling the application of energy using a threshold value
- A61B2018/00678—Sensing and controlling the application of energy using a threshold value upper
-
- 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
- A61B2018/00761—Duration
-
- 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
-
- 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
- A61B2018/00886—Duration
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Description
本出願は、Robert Whamらによって、2006年1月24日に出願された「組織シールのためのシステムおよび方法」と題する米国仮出願第60/761,443への優先権を主張している。その全体の内容は、その全体の内容が本明細書中に参考として援用される。
(技術分野)
本開示は、電気外科用システム、および電気外科的手順を実施するための方法に関する。より詳細には、本開示は、感知された組織性質およびその他の所定の値に基づき、特定の組織処置が終了するときを決定することに関する。
エネルギーを基礎にした組織処置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、寒冷、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、高周波電流の手術部位への適用を含み、組織を切断、切除、凝固、シールなどを行う。単極電気外科では、供給源または能動電極が、電気外科用電源からの高周波エネルギーを組織に送達し、そして戻り電極が電源に電流を戻す。単極電気外科では、供給源電極は、代表的には、外科医によって保持される外科用器具の一部であり、そして処置されるべき組織に付与される。患者戻り電極は、能動電極から遠隔に配置され、電源に戻る電流を運ぶ。
本開示は、電気外科的処置の終了を決定するためのシステムおよび方法に関する。このシステムは、マイクロプロセッサおよびセンサー回路を有する電気外科用電源を含む。センサー回路は、組織インピーダンスを連続的にモニターし、そしてオフセットインピーダンスを測定する。マイクロプロセッサは、組織インピーダンスを、上記オフセットインピーダンスの関数として規定される閾値インピーダンス値、およびハードコードされた終結インピーダンス値と比較する。組織インピーダンスがこの閾値インピーダンス値以上であるとき、処置は終了し、そしてこのシステムは、電源の出力を調節する。
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で以下に説明する。以下の説明において、周知の機能または構成は、不必要な詳細で本開示を不明りょうにすることを避けるために詳細には説明されない。当業者は、本開示が、内視鏡器具または開放器具のいずれかとの使用のために適合され得ることを理解する。
電気外科的手順を実施するためのシステムおよび方法が開示される。このシステムは、組織に所定の出力レベルでエネルギーを提供するように適合された電気外科用電源を含む。この電気外科用電源は、少なくとも1つの勾配を有する所望のインピーダンス軌道を生成するように適合されたマイクロプロセッサを含む。この標的インピーダンス軌道は、1つ以上の標的インピーダンス値を含む。このマイクロプロセッサはまた、この標的インピーダンス軌道に沿った組織のインピーダンスを、対応する標的インピーダンス値に組織インピーダンスを実質的に一致するように出力レベルを調節することによって駆動するように適合されている。このマイクロプロセッサは、組織インピーダンスを閾値インピーダンス値と比較し、そしてこの組織インピーダンスが上記閾値インピーダンス以上であるとき上記電気外科用電源の出力を調節するようにさらに適合されている。このシステムはまた、電気外科用エネルギーを組織に付与するように適合された少なくとも1つの能動電極を含む電気外科用器具を含む。
12 供給ライン
20 電源
22 センサー回路
24 能動電極
25 マイクロプロセッサ
26 メモリー
27 高電圧DC電源
28 RF出力相
Claims (10)
- 電気外科用システムであって:
組織に電気外科用エネルギーを供給するように適合された電気外科用電源を備え、該電気外科用電源が:
少なくとも1つの勾配を有する標的インピーダンス軌道を生成するように適合されたマイクロプロセッサであって、該標的インピーダンス軌道が複数の標的インピーダンス値を含み、該マイクロプロセッサがまた、該標的インピーダンス軌道に沿った組織のインピーダンスを、対応する標的インピーダンス値に組織インピーダンスを実質的に一致するように出力レベルを調節することによって駆動するように適合され、該マイクロプロセッサが、組織インピーダンスを閾値インピーダンス値と比較し、そして該組織インピーダンスが該閾値インピーダンス以上であるとき該電気外科用電源の出力を調節するようにさらに適合されているマイクロプロセッサ、を備える電気外科用電源;および
電気外科用エネルギーを組織に付与するように適合された少なくとも1つの能動電極を含む電気外科用器具、を備える、電気外科用システム。 - 前記マイクロプロセッサが、オフセットインピーダンス値および終結インピーダンス値の関数として閾値インピーダンス値を生成するようにさらに適合された、請求項1に記載の電気外科用システム。
- 前記オフセットインピーダンス値が、最大電流値に対応するインピーダンス値、最小インピーダンス値および初期インピーダンス値からなる群から選択される、請求項2に記載の電気外科用システム。
- 前記マイクロプロセッサが、反応期間の持続時間を反応タイマー値と比較し、そして該反応期間の持続時間が該反応タイマー値以上であるとき、前記電気外科用電源の出力を調節するようにさらに適合される、請求項1に記載の電気外科用システム。
- 前記マイクロプロセッサが、反応期間の持続時間を反応タイマー値および時間オフセット期間の合計と比較し、そして該反応期間の持続時間が該反応タイマー値および時間オフセット期間の合計以上であるとき、前記電気外科用電源の出力を調節するようにさらに適合される、請求項4に記載の電気外科用システム。
- 電気外科用電源であって:
組織に電気外科用エネルギーを供給するように適合されたRF出力ステージ;および
少なくとも1つの勾配を有する標的インピーダンス軌道を生成するように適合されたマイクロプロセッサであって、該標的インピーダンス軌道が複数の標的インピーダンス値を含み、該マイクロプロセッサがまた、該標的インピーダンス軌道に沿った組織のインピーダンスを、対応する標的インピーダンス値に組織インピーダンスを実質的に一致するように出力レベルを調節することによって駆動するように適合され、該マイクロプロセッサが、組織インピーダンスを閾値インピーダンス値と比較し、そして該組織インピーダンスが該閾値インピーダンス以上であるとき該電気外科用電源の出力を調節するようにさらに適合されているマイクロプロセッサ、を備える、電気外科用電源。 - 前記マイクロプロセッサが、オフセットインピーダンス値および終結インピーダンス値の関数として閾値インピーダンス値を生成するようにさらに適合された、請求項6に記載の電気外科用電源。
- 前記オフセットインピーダンス値が、最大電流値に対応するインピーダンス値、最小インピーダンス値および初期インピーダンス値からなる群から選択される、請求項7に記載の電気外科用電源。
- 前記マイクロプロセッサが、反応期間の持続時間を反応タイマー値と比較し、そして該反応期間の持続時間が該反応タイマー値以上であるとき、前記電気外科用電源の出力を調節するようにさらに適合される、請求項6に記載の電気外科用電源。
- 前記マイクロプロセッサが、反応期間の持続時間を反応タイマー値および時間オフセット期間の合計と比較し、そして該反応期間の持続時間が該反応タイマー値および時間オフセット期間の合計以上であるとき、前記電気外科用電源の出力を調節するようにさらに適合される、請求項9に記載の電気外科用電源。
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
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US76144306P | 2006-01-24 | 2006-01-24 | |
US60/761,443 | 2006-01-24 | ||
US11/409,602 | 2006-04-24 | ||
US11/409,602 US20100042093A9 (en) | 1998-10-23 | 2006-04-24 | System and method for terminating treatment in impedance feedback algorithm |
Related Child Applications (1)
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JP2012093203A Division JP2012196458A (ja) | 2006-01-24 | 2012-04-16 | インピーダンスフィードバックアルゴリズムにおける処理を終結するためのシステムおよび方法 |
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JP2007195973A JP2007195973A (ja) | 2007-08-09 |
JP5085143B2 true JP5085143B2 (ja) | 2012-11-28 |
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JP2007012038A Expired - Fee Related JP5085143B2 (ja) | 2006-01-24 | 2007-01-22 | インピーダンスフィードバックアルゴリズムにおける処理を終結するためのシステムおよび方法 |
JP2012093203A Pending JP2012196458A (ja) | 2006-01-24 | 2012-04-16 | インピーダンスフィードバックアルゴリズムにおける処理を終結するためのシステムおよび方法 |
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JP2012093203A Pending JP2012196458A (ja) | 2006-01-24 | 2012-04-16 | インピーダンスフィードバックアルゴリズムにおける処理を終結するためのシステムおよび方法 |
Country Status (5)
Country | Link |
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US (1) | US20100042093A9 (ja) |
EP (2) | EP1810630B1 (ja) |
JP (2) | JP5085143B2 (ja) |
AU (1) | AU2007200268B2 (ja) |
CA (1) | CA2574690A1 (ja) |
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US20100042093A9 (en) | 1998-10-23 | 2010-02-18 | Wham Robert H | System and method for terminating treatment in impedance feedback algorithm |
US7901400B2 (en) * | 1998-10-23 | 2011-03-08 | Covidien Ag | Method and system for controlling output of RF medical generator |
US11229472B2 (en) | 2001-06-12 | 2022-01-25 | Cilag Gmbh International | Modular battery powered handheld surgical instrument with multiple magnetic position sensors |
JP4490807B2 (ja) * | 2002-05-06 | 2010-06-30 | コヴィディエン アクチェンゲゼルシャフト | 電気外科処置中に血液を電気的に検出し発生器を制御するシステム |
US7044948B2 (en) | 2002-12-10 | 2006-05-16 | Sherwood Services Ag | Circuit for controlling arc energy from an electrosurgical generator |
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WO2005050151A1 (en) | 2003-10-23 | 2005-06-02 | Sherwood Services Ag | Thermocouple measurement circuit |
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US20070173813A1 (en) * | 2006-01-24 | 2007-07-26 | Sherwood Services Ag | System and method for tissue sealing |
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- 2007-01-22 CA CA002574690A patent/CA2574690A1/en not_active Abandoned
- 2007-01-23 AU AU2007200268A patent/AU2007200268B2/en not_active Ceased
- 2007-01-24 EP EP07001485.7A patent/EP1810630B1/en not_active Not-in-force
- 2007-01-24 EP EP10180965.5A patent/EP2298203B1/en not_active Not-in-force
-
2012
- 2012-04-16 JP JP2012093203A patent/JP2012196458A/ja active Pending
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EP2298203B1 (en) | 2017-03-08 |
AU2007200268B2 (en) | 2013-04-04 |
JP2012196458A (ja) | 2012-10-18 |
US20070173803A1 (en) | 2007-07-26 |
EP1810630A1 (en) | 2007-07-25 |
US20100042093A9 (en) | 2010-02-18 |
EP1810630B1 (en) | 2016-09-07 |
CA2574690A1 (en) | 2007-07-24 |
AU2007200268A1 (en) | 2007-08-09 |
JP2007195973A (ja) | 2007-08-09 |
EP2298203A1 (en) | 2011-03-23 |
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