JPH11504539A - 予測最高組織温度を使用して生体組織を切除するためのシステムおよび方法 - Google Patents
予測最高組織温度を使用して生体組織を切除するためのシステムおよび方法Info
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Abstract
Description
Claims (1)
- 【特許請求の範囲】 1.生体組織を切除するための装置であって、 組織電極間の接触面で組織に接触し、設定可能な電力レベルで切除エネルギー を送るための電極と、 設定可能な速度で該電極から熱を除去する要素と、 該電極が切除エネルギーを送る電力レベルと該電極の温度をサンプリングし、 それから該組織電極間の接触面下で発生している最高組織温度状態を予測する処 理要素と、 を備える装置。 2.生体組織を切除するための装置であって、 組織電極間の接触面で組織に接触し、設定可能な電力レベルで切除エネルギー を送るための電極と、 設定可能な速度で該電極から熱を除去する要素と、 該電極が切除エネルギーを送る電力レベル、該電極の温度、および熱が該電極 から除去される速度をサンプリングし、それから該組織電極間の接触面下で発生 している最高組織温度状態を予測する処理要素と、 を備える装置。 3.生体組織を切除するための装置であって、 組織電極間の接触面で組織に接触し、設定可能な電力レベルで切除エネルギー を送るための電極と、 設定可能な速度で該電極から熱を除去する要素と、 該組織電極間の接触面下の最高組織温度と規定の操作条件のセットとの間の観 察された関係を相関させる関数を保持し;実際の操作条件をサンプリングし;該 実際の操作条件を該関数と比較し;そしてこの比較から最高組織温度を予測する ための処理要素と、 を備える装置。 4.請求項1または2または3記載の装置であって、 前記処理要素が前記最高組織温度の予測に基づいて出力を生成する、装置。 5.請求項1または2または3記載の装置であって、 前記処理要素が、少なくとも部分的に前記最高組織温度の予測に基づいて、前 記電極が送る切除エネルギーの電力レベルを制御する、装置。 6.請求項1または2または3記載の装置であって、 前記処理要素が、少なくとも部分的に前記最高組織温度の予測に基づいて、熱 を前記電極から除去する速度を制御する、装置。 7.請求項1または2または3記載の装置であって、 前記熱を除去する要素が、冷却媒体を前記電極に熱伝導接触させることにより 該電極を冷却する、装置。 8.請求項7記載の装置であって、 前記処理要素が、前記電極との熱伝導接触の結果として生じた前記冷却媒体の 温度変化を感知することにより、熱が該電極から除去される速度を感知する、装 置。 9.請求項8記載の装置であって、 前記処理要素が、少なくとも部分的に前記最高組織温度の予測に基づいて、熱 が前記電極から除去される速度を制御する、装置。 10.請求項8記載の装置であって、 熱の除去速度がÅとして表現され、 ここで、 Å= c × ΔT × RATE であって、 cが前記冷却媒体の熱容量(単位 J/kg K)であり、 ΔTが前記電極との熱伝導接触による該冷却媒体の温度の低下(単位 K)であ り、 RATEが該電極と熱伝導接触がなされるときの該冷却媒体の質量流速(単位 kg/ 秒)である、装置。 11.請求項10記載の装置であって、 前記処理要素が、少なくとも部分的に前記最高組織温度の予測に基づいて、熱 が前記電極から除去される速度を制御する、装置。 12.請求項1または2または3記載の装置であって、 前記処理要素が、前記電極と熱伝導接触を行って該電極の温度を感知する温度 感知要素を有する、装置。 13.請求項1または2または3記載の装置であって、 前記電極が無線周波エネルギーを送る、装置。 14.請求項1または2記載の装置であって、 前記処理要素がニューラルネットワーク予測器を有する、装置。 15.組織を切除するためにエネルギーを電極に供給する装置であって、 電極に連結され、組織を切除するために該電極にエネルギーを供給するように 適合されるゼネレータと、 冷却媒体を該電極と熱伝導接触させて該電極を冷却する冷却要素と、 該ゼネレータに連結され、該ゼネレータに電力を供給するコントローラと、 を備え、該コントローラが、 該電極における温度を計測する第1の感知要素と、 該ゼネレータに供給される電力を計測する第2の感知要素と、 該第1の感知要素が感知した温度をサンプリングし、該第2のサンプリング要 素が感知した電力をサンプリングすることにより組織電極間の接触面下で発生し ている最高組織温度状態を予測し、少なくとも部分的に該最高組織温度の予測に 基づいて、該ゼネレータに供給する電力を制御する信号を生成するための処理要 素と、を備える、 装置。 16.組織を切除するためにエネルギーを電極に供給する装置であって、 電極に連結され、組織を切除するために該電極にエネルギーを供給するように 適合されるゼネレータと、 冷却媒体を該電極と熱伝導接触させて該電極を冷却する冷却要素と、 該ゼネレータに連結され、該ゼネレータに電力を供給するコントローラと、 を備え、該コントローラが、 該電極における温度を計測する第1の感知要素と、 該ゼネレータに供給される電力を計測する第2の感知要素と、 該第1の感知要素が感知した温度をサンプリングし、該第2のサンプリング要 素が感知した電力をサンプリングすることにより組織電極間の接触面下で発生し ている最高組織温度状態を予測し、少なくとも部分的に該最高組織温度の予測に 基づいて、該冷却要素が該電極を冷却する速度を制御する信号を生成するための 処理要素と、を備える、 装置。 17.請求項16記載の装置であって、 前記処理要素が、少なくとも部分的に前記最高組織温度の予測に基づいて、前 記ゼネレータに供給される電力を制御する信号を生成する、装置。 18.組織を切除するためにエネルギーを電極に供給する装置であって、 電極に連結され、組織を切除するために該電極にエネルギーを供給するように 適合されるゼネレータと、 冷却媒体を該電極と熱伝導接触させて該電極を冷却する冷却要素と、 該ゼネレータに連結され、該ゼネレータに電力を供給するコントローラと、 を備え、該コントローラが、 該電極における温度を計測する第1の感知要素と、 該ゼネレータに供給される電力を計測する第2の感知要素と、 該電極との熱伝導接触の結果生じた該冷却媒体の温度変化を計測する第3の感 知要素と、 該第1の感知要素が感知した温度をサンプリングし、該第2のサンプリング要 素が感知した電力をサンプリングし、該第2の感知要素が感知した該冷却媒体の 温度変化をサンプリングすることにより組織電極間の接触面下で発生している最 高組織温度状態を予測し、少なくとも部分的に該最高組織温度の予測に基づいて 、該ゼネレータに供給する電力を制御する信号を生成するための処理要素と、を 備える、 装置。 19.組織を切除するためにエネルギーを電極に供給する装置であって、 電極に連結され、組織を切除するために該電極にエネルギーを供給するように 適合されるゼネレータと、 冷却媒体を該電極と熱伝導接触させて該電極を冷却する冷却要素と、 該ゼネレータに連結され、該ゼネレータに電力を供給するコントローラと、 を備え、該コントローラが、 該電極における温度を計測する第1の感知要素と、 該ゼネレータに供給される電力を計測する第2の感知要素と、 該電極との熱伝導接触の結果生じた該冷却媒体の温度変化を計測する第3の感 知要素と、 該第1の感知要素が感知した温度をサンプリングし、該第2のサンプリング要 素が感知した電力をサンプリングし、該第2の感知要素が感知した該冷却媒体の 温度変化をサンプリングすることにより、組織電極間の接触面下で発生している 最高組織温度状態を予測し、少なくとも部分的に該最高組織温度の予測に基づい て、該冷却要素が該電極を冷却する速度を制御する信号を生成するための処理要 素と、を備える、 装置。 20.請求項19記載の装置であって、 前記処理要素が、少なくとも部分的に前記最高組織温度の予測に基づいて、前 記ゼネレータに供給される電力を制御する信号を生成する、装置。 21.請求項18または19記載の装置であって、 前記処理要素がÅとして表現される熱の除去速度を取得し、 ここで、 Å= c × ΔT × RATE であって、 cが前記冷却媒体の熱容量(単位 J/kg K)であり、 ΔTが前記第3の感知要素が感知する、前記電極との熱伝導接触による該冷却 媒体の温度の低下(単位 K)であり、 RATEが該電極と熱伝導接触がなされるときの該冷却媒体の質量流速(単位 kg/ 秒)である、装置。 22.請求項18または19記載の装置であって、 前記ゼネレータが無線周波エネルギーを前記電極に供給する、装置。 23.請求項18または19記載の装置であって、 前記処理要素がニューラルネットワーク予測器を有する、装置。 24.組織を切除するためにエネルギーを電極に供給する装置であって、 電極に結合され、組織を切除するために該電極にエネルギーを供給するように 適合されるゼネレータと、 冷却媒体を該電極と熱伝導接触させて該電極を冷却する冷却要素と、 該ゼネレータに結合され、該ゼネレータに電力を供給するコントローラと、 を備え、該コントローラが、 該電極における温度を計測する第1の感知要素と、 該ゼネレータに供給される電力を計測する第2の感知要素と、 該第1の感知要素が感知した温度をサンプリングし、該第2のサンプリング要 素が感知した電力をサンプリングし;サンプリングした温度と電力とを、組織電 極間の接触面下の最高組織温度と、電極の温度と電力とを含む規定の操作条件の セットとの間の観察された関係を相関させる関数と比較し;そしてこの比較から 該組織電極間の接触面下で発生している該最高組織温度状態を予測し;そして少 なくとも部分的に該最高組織温度の予測に基づいて、該ゼネレータに供給される 電力を制御する信号を生成するための処理要素と、を備える、 装置。 25.請求項24記載の装置であって、 前記熱を除去する要素が、冷却媒体を前記電極と熱伝導接触させることにより 該電極を冷却し、 前記処理要素がさらに、該冷却媒体が該電極と熱伝導接触を行う速度をサンプ リングし、 前記関数が相関させる規定の操作条件が、該冷却媒体が該電極と熱伝導接触を 行う速度を含む、装置。 26.組織を切除するためにエネルギーを電極に供給する装置であって、 電極に結合され、組織を切除するために該電極にエネルギーを供給するように 適合されるゼネレータと、 冷却媒体を該電極と熱伝導接触させて該電極を冷却する冷却要素と、 該ゼネレータに結合され、該ゼネレータに電力を供給するコントローラと、 を備え、該コントローラが、 該電極における温度を計測する第1の感知要素と、 該ゼネレータに供給される電力を計測する第2の感知要素と、 該第1の感知要素が感知した温度をサンプリングし、そして該第2のサンプリ ング要素が感知した電力をサンプリングし;サンプリングした温度と電力とを、 組織電極間の接触面下の最高組織温度と、該電極の温度と電力とを含む規定の操 作条件のセットとの間の観察された関係を相関させる関数と比較し、この比較か ら該組織電極間の接触面下で発生している該最高組織温度状態を予測し;そして 少なくとも部分的に該最高組織温度の予測に基づいて、該電極が冷却される速度 を制御する信号を生成するための処理要素と、を備える、 装置。 27.請求項26記載の装置であって、 前記熱を除去する要素が、冷却媒体を前記電極と熱伝導接触させることにより 該電極を冷却し、 前記処理要素がさらに、該冷却媒体が該電極と熱伝導接触を行う速度をサンプ リングし、 前記関数が相関させる規定の操作条件が、該冷却媒体が該電極と熱伝導接触を 行う速度を含む、装置。 28.請求項27記載の装置であって、 前記処理要素が、前記電極との熱伝導接触の結果として発生した前記冷却媒体 の温度変化を感知して得た該電極からの熱の除去速度を制御することにより、該 電極が冷却される速度を制御する、装置。 29.請求項27記載の装置であって、 前記処理要素がÅとして表現される熱の除去速度を取得し、 ここで、 Å= c × ΔT × RATE であって、 cが前記冷却媒体の熱容量(単位 J/kg K)であり、 ΔTが前記電極との熱伝導接触による該冷却媒体の温度の低下(単位 K)であ り、 RATEが該電極と熱伝導接触がなされたときの該冷却媒体の質量流速(単位 kg/ 秒)である、装置。 30.生体組織を切除するための方法であって、 切除エネルギーを電極に供給する工程と、 該電極からの熱を伝導する工程と、 該電極における温度を感知する工程と、 該電極により送られる電力を感知する工程と、 感知した温度と電力から、組織電極間の接触面下で発生している最高組織温度 状態を予測する工程と、 を包含する方法。 31.生体組織を切除するための方法であって、 切除エネルギーを電極に供給する工程と、 該電極からの熱を伝導する工程と、 該電極における温度を感知する工程と、 該電極により送られる電力を感知する工程と、 熱が該電極から伝導される速度を感知する工程と、 感知した温度、電力、および熱伝導速度から、組織電極間の接触面下で発生し ている最高組織温度状態を予測する工程と、 を包含する方法。 32.生体組織を切除するための方法であって、 切除エネルギーを電極に供給する工程と、 該電極からの熱を伝導する工程と、 該電極における温度を感知する工程と、 該電極により送られる電力を感知する工程と、 感知した温度と電力を、組織電極間の接触面下の最高組織温度と、該電極の温 度と電力を含む規定の操作条件のセットとの間の観察された関係を相関させる関 数と比較する工程と、 この比較から、該組織電極間の接触面下で発生している該最高組織温度状態を 予測する工程と、 を包含する方法。 33.請求項30または31または32記載の方法であって、 少なくとも部分的に、前記予測した最高組織温度状態に基づいて、切除エネル ギーの供給を制御する信号を生成する工程をさらに包含する、方法。 34.請求項30または31または32記載の方法であって、 少なくとも部分的に、前記予測した最高組織温度状態に基づいて、前記電極か らの熱の伝導速度を制御する工程をさらに包含する、方法。 35.請求項34記載の方法であって、 熱を伝導する工程が、冷却媒体を前記電極と熱伝導接触させることにより熱を 除去する、方法。 36.請求項35記載の方法であって、 前記電極から熱を除去する速度が、該電極との熱伝導接触の結果生じた前記冷 却媒体の温度変化に基づいて感知される、方法。 37.請求項35記載の方法であって、 前記電極からの熱の伝導速度が、Åとして表現される熱の除去速度から取得さ れ、 ここで、 Å= c × ΔT × RATE であって、 cが前記冷却媒体の熱容量(単位 J/kg K)であり、 ΔTが第2の感知要素が感知した、該電極との熱伝導接触による該冷却媒体の 温度の低下(単位 K)であり、 RATEが該電極と熱伝導接触がなされたときの該冷却媒体の質量流速(単位 kg/ 秒)である、方法。 38.請求項30または31または32記載の方法であって、 前記電極における温度を感知する工程が、該電極と熱伝導接触している温度感 知要素を使用して該電極の温度を感知する、方法。 39.請求項30または31または32記載の方法であって、 無線周波エネルギーが前記電極に供給される、方法。 40.請求項30または31記載の方法であって、 前記最高組織温度を予測する工程が、ニューラルネットワーク予測器を使用す る、方法。 41.請求項32記載の方法であって、 前記熱を伝導する工程が、冷却媒体を前記電極と熱伝導接触させることによっ て熱を除去し、 該冷却媒体が該電極と熱伝導接触を行う際の流速を感知する工程をさらに包含 し、 前記関数の規定操作条件のセットが、該冷却媒体の流速を含み、前記比較工程 が、感知した流速と該関数とを比較する、方法。
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| Application Number | Priority Date | Filing Date | Title |
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| US08/431,775 US5735846A (en) | 1994-06-27 | 1995-05-01 | Systems and methods for ablating body tissue using predicted maximum tissue temperature |
| US08/431,775 | 1995-05-01 | ||
| PCT/US1996/005978 WO1996034569A1 (en) | 1995-05-01 | 1996-04-30 | Systems and methods for ablating body tissue using predicted maximum tissue temperature |
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| JP2005295787A Division JP4131503B2 (ja) | 1995-05-01 | 2005-10-07 | 予測最高組織温度を使用して生体組織を切除するためのシステム |
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| JP53341096A Expired - Lifetime JP3824090B2 (ja) | 1995-05-01 | 1996-04-30 | 予測細孔組織温度を使用して生体組織を切除するためのシステム |
| JP2005295787A Expired - Fee Related JP4131503B2 (ja) | 1995-05-01 | 2005-10-07 | 予測最高組織温度を使用して生体組織を切除するためのシステム |
| JP2007312866A Expired - Lifetime JP4440961B2 (ja) | 1995-05-01 | 2007-12-03 | 予測最高組織温度を使用して生体組織を切除するためのシステムおよび方法 |
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| JP2005295787A Expired - Fee Related JP4131503B2 (ja) | 1995-05-01 | 2005-10-07 | 予測最高組織温度を使用して生体組織を切除するためのシステム |
| JP2007312866A Expired - Lifetime JP4440961B2 (ja) | 1995-05-01 | 2007-12-03 | 予測最高組織温度を使用して生体組織を切除するためのシステムおよび方法 |
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| US (1) | US5735846A (ja) |
| EP (1) | EP0823843B1 (ja) |
| JP (3) | JP3824090B2 (ja) |
| AT (1) | ATE306219T1 (ja) |
| CA (1) | CA2217538C (ja) |
| DE (1) | DE69635273T2 (ja) |
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Also Published As
| Publication number | Publication date |
|---|---|
| JP4440961B2 (ja) | 2010-03-24 |
| EP0823843B1 (en) | 2005-10-12 |
| WO1996034569A1 (en) | 1996-11-07 |
| CA2217538C (en) | 2000-09-26 |
| JP3824090B2 (ja) | 2006-09-20 |
| JP2008080152A (ja) | 2008-04-10 |
| EP0823843A1 (en) | 1998-02-18 |
| DE69635273D1 (de) | 2006-02-23 |
| US5735846A (en) | 1998-04-07 |
| EP0823843A4 (en) | 1999-02-24 |
| ES2249780T3 (es) | 2006-04-01 |
| ATE306219T1 (de) | 2005-10-15 |
| JP4131503B2 (ja) | 2008-08-13 |
| CA2217538A1 (en) | 1996-11-07 |
| DE69635273T2 (de) | 2006-07-20 |
| JP2006068545A (ja) | 2006-03-16 |
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