JPH08504646A - 電気手術器用の処理装置及びその使用方法 - Google Patents
電気手術器用の処理装置及びその使用方法Info
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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
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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
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- 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
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- A61B2018/00636—Sensing and controlling the application of energy
- A61B2018/00696—Controlled or regulated parameters
- A61B2018/00702—Power or energy
- A61B2018/00708—Power or energy switching the power on or off
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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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Abstract
Description
Claims (1)
- 【特許請求の範囲】 1.一次巻線と二次巻線とを有する出力トランスを備えた電気手術器10の複 数の動作パラメータをモニタして、それら複数の動作パラメータを、該電気手術 器10から供給される高周波エネルギにかかる負荷に関連させてリアルタイムで 制御するための回路において、 前記電気手術器10の出力から供給される高周波エネルギを受取り、その供給 される高周波エネルギにかかる負荷に応答し得るように接続された検出回路11 であって、前記二次巻線が発生する電流及び電圧の瞬時値を提供するように接続 されており、それによって、負荷がかかっているときの前記電気手術器10の動 作を表す複数のパラメータを収集し得るようにした検出回路11と、 前記検出回路11に接続された信号補正部12であって、信号の処理とフィー ドバックとに応答して、前記検出回路から受取ったパラメータの振幅を強調手段 によって調節ないし減衰する信号補正部12と、 前記信号補正部に接続されたバッファであって、収集され強調処理を施されて そのレベルを設定されたパラメータを受取るバッファと、 前記バッファに接続されたフラッシュ・タイプのアナログ・ディジタル・コン バータ18であって、前記バッファから信号を受取り、受取った信号のアナログ 形式からディジタル形式への変換を1回のサイクルの間に複数回に亙って行うア ナログ・ディジタル・コンバータ18と、 前記アナログ・ディジタル・コンバータに接続されたデータ・メモリ21であ って、変換された前記信号をディジタル形式で記憶させておくためのデータ・メ モリ21と、 記憶されている前記信号を前記データ・メモリ21から受取れるように該デー タ・メモリ21に接続されたプロセッサ20であって、受取った信号を処理しつ つそれと並行して前記電気手術器10のモニタ及び制御を連続的に行い、前記電 気手術器10のモニタを行うには、前記高周波エネルギの波形パルス列の、電圧 、電流、電力、負荷インピーダンス、漏れ電流、スペクトル成分、及び/または 波高率を測定するようにし、前記電気手術器10の制御を行うには、設定された モ ードと前記プロセッサ20のアルゴリズムとに従ってその制御を行うことによっ て、前記高周波エネルギの波形パルス列の、予め規定されている、電圧、電流、 電力、負荷インピーダンス、漏れ電流、スペクトル成分、及び/または波高率を 達成するようにしたプロセッサ20と、 を備えたことを特徴とする回路。 2.フラッシュ・タイプの前記アナログ・ディジタル・コンバータ18が、毎 秒約8百万サンプルの速度で波形パルス列のサンプリングを行えるフラッシュ・ タイプのコンバータであることを特徴とする請求項1のモニタ及び制御のための 回路。 3.電気手術器の動作パラメータをモニタするための前記回路に備えられてい る高周波駆動クロック27が、前記電気手術器10の出力と同期するようにして あり、電気手術器の動作パラメータをモニタするための前記回路に備えられてい るサンプル・クロック19を用いて、前記データ・メモリ内に記憶されている信 号を前記プロセッサ20への入力とするために照会するタイミングを設定するよ うにしてあり、それらによって、サンプリングされたサンプルの個数とサンプル 周波数との積が高周波サイクル・タイムの整数倍になるようにしたことを特徴と する請求項2の回路。 4.前記プロセッサ20を前記電気手術器10に接続されているフィードバッ ク・ループ16によって制御が行われるようにしてあり、その制御は、前記電気 手術器の高圧電源を制御することによって高周波出力を調節するものであること を特徴とする請求項1の回路。 5.前記プロセッサ20を前記電気手術器10に接続されているフィードバッ ク・ループ16によって制御が行われるようにしてあり、前記フィードバック・ ループは、高周波駆動パルスを制御することによって前記電気手術器を制御する ものであることを特徴とする請求項1の回路。 6.前記プロセッサ20を前記電気手術器10に接続されているフィードバッ ク・ループ16によって制御が行われるようにしてあり、その制御は、前記電気 手術器の高圧電源を制御することによって高周波出力を調節するものであり、前 記フィードバック・ループは、高周波駆動パルスを制御することによって前記電 気手術器を制御するものであることを特徴とする請求項1の回路。 7.前記プロセッサ20の入力が、複数の出力動作パラメータをモニタし、算 出し、且つ制御するようにしてあり、それら複数の出力動作パラメータには、被 制御量である、RMS値で表された、定電流、定電圧、または電力が含まれてい ることを特徴とする請求項1の回路。 8.前記プロセッサ20が、ピークピーク電圧、ピークピーク電流、及び漏れ 電流を含めた動作パラメータを制御すると共に、それらの各々を前記電気手術器 10の前記フィードバック・ループ16のための制御信号として考慮するように してあることを特徴とする請求項6の回路。 9.前記電気手術器10の中の高周波駆動部30が16個のパルスを設定する ようにしてあり、前記プロセッサ20が前記電気手術器10の出力を16回サン プリングするようにしてあり、サンプル・クロックが立上りと立下りとを有する 矩形波パルスを画成しており、それらによって、実質的に互いに隣接するサイク ルの中の前記サンプル・クロックの各矩形波パルスの立上りにおいて256個の データ・ポイントが発生され、立下りにおいて別の256個のデータ・ポイント が発生されるようにしたことを特徴とする請求項3の回路。 10.前記データ・メモリ内に記憶されていた信号を前記プロセッサ20が受 取ったならば、それら信号が、前記アナログ・ディジタル・コンバータ18から 矩形波パルス列の形の変換後信号を受取るための移相したサンプル・クロックに よる表示によって、各組が256個ずつの2組の信号に分けられるようにしてあ り、前記プロセッサが、最初に前記サンプル・クロックの各矩形波パルスの立上 りにおいて、続いてその矩形波パルスの立下りにおいて、前記矩形波パルス列を 8メガヘルツで読取るようにしてあることを特徴とする請求項9の回路。 11.前記プロセッサが前記変換後信号の分解能を強化するようにしてあり、 移相式サンプル・クロック19を使用して、前記プロセッサ20が、該移相式サ ンプル・クロック19を使用しないときに変換後信号を取扱い得る周波数より高 い周波数で信号を取扱い得るようにしてあり、それらによって、前記電気手術器 10の広いスペクトル入力に亙って該電気手術器10の電流及び電圧の瞬時値を モニタ及び制御し、測定された負荷に応じて前記トランスの出力をリアルタイム で補正できるようにしたことを特徴とする請求項1記載の回路。 12.一次巻線と二次巻線とを有する出力トランスを備えた電気手術器10の 複数の動作パラメータをモニタして、それら複数の動作パラメータを、該電気手 術器10から供給される高周波エネルギにかかる負荷に関連させて制御するため の回路において、 前記電気手術器10の出力から供給される高周波エネルギを受取り、その供給 される高周波エネルギにかかる負荷に応答し得るように接続された検出回路11 であって、前記二次巻線が発生する電流及び電圧の瞬時値を提供するように接続 されており、それによって、負荷がかかっているときの前記電気手術器10の動 作を表す複数のパラメータを収集し得るようにした検出回路11と、 前記検出回路11に接続された信号補正部12であって、信号の処理とフィー ドバックとに応答して、前記検出回路から受取ったパラメータの振幅を強調手段 によって調節ないし減衰する信号補正部12と、 前記信号補正部に接続されたバッファであって、収集され強調処理を施されて そのレベルを設定されたパラメータを受取るバッファと、 前記バッファに接続されたフラッシュ・タイプのアナログ・ディジタル・コン バータ18であって、前記バッファから信号を受取り、受取った信号のアナログ 形式からディジタル形式への変換を1回のサイクルの間に複数回に亙って行い、 毎秒数百万サンプルの速度で波形パルス列のサンプリングを行い得るようにした フラッシュ・タイプのアナログ・ディジタル・コンバータ18と、 前記アナログ・ディジタル・コンバータに接続されたデータ・メモリ21であ って、ディジタル形式に変換された信号を記憶させておくためのデータ・メモリ 21と、 前記電気手術器10の出力から供給される高周波エネルギを受取るように接続 された高周波クロックであって、移相式サンプル・クロック19を使用して、移 相を利用することにより、前記プロセッサ20への入力信号の照会のタイミング を、移相を利用しないときより高い周波数のサンプリング・レートに設定するよ うにした高周波クロックと、 前記データ・メモリ21に記憶されている信号を受取れるように該データ・メ モリ21に接続されたプロセッサ20であって、受取った信号を処理しつつそれ と並行して前記電気手術器10のモニタを連続的に行い、前記電気手術器10の モニタを行うには、前記高周波エネルギ・ユニットの波形パルス列の、電圧、電 流、電力、負荷インピーダンス、漏れ電流、スペクトル成分、及び/または波高 率を測定するようにしてあり、該プロセッサ20において前記電気手術器10の 出力パラメータを算出可能にしてあり、それによって、ピークピーク電圧、ピー クピーク電流、及び漏れ電流を含めた動作パラメータを制御してそれらの各々を 前記電気手術器10へのフィードバックのための制御信号として考慮するように したプロセッサ20と、 前記移相式サンプル・クロック19は、前記プロセッサ20が、該移相式サン プル・クロック19を使用しないときに測定値を取扱い得る周波数より高い周波 数で測定値を取扱い得るようにしており、それによって、前記電気手術器10の 広いスペクトル入力に亙って該電気手術器10の電流及び電圧の瞬時値をモニタ 及び制御できるようにし、測定された負荷に応じて前記出力をリアルタイムで補 正できるようにしていることと、 前記電気手術器10に接続されたフィードバック・ループ16であって、該電 気手術器10に備えられている高圧電源を操作することを可能にすると共に、前 記電気手術器10の主制御回路の高周波駆動部30のパルスを調節することを可 能にしており、更に、定電流、定電圧、または電力を含んでいる前記トランスの 出力動作パラメータを、前記プロセッサ20の入力によって、RMS値として算 出し、モニタし、及び/または制御することを可能にしているフィードバック・ ループ16と、 を備えたことを特徴とする回路。 13.前記データ・メモリ内に記憶されていた信号を前記プロセッサが受取っ たならば、それら信号が、前記アナログ・ディジタル・コンバータ18から矩形 波パルス列の形の変換後信号を受取るための移相したサンブル・クロック19に よって、各組が256個ずつの2組の信号に分けられるようにしてあり、前記プ ロセッサが、互いに隣接するサイクルにおける前記サンプル・クロックの各矩形 波パルスの立上りと立下りとにおいて、前記矩形波パルス列を8メガヘルツで読 取るようにしてあることを特徴とする請求項12の回路。 14.前記電気手術器10の高周波駆動部30の16個のパルスの各パルスご とに、前記プロセッサ20が前記電気手術器10の出力を16回ずつサンプリン グするようにしてあり、それによって、実質的に互いに隣接するサイクルの中の 前記サンプル・クロックの各矩形波パルスの立上りにおいて読取られる256個 のデータ・ポイントと立下りにおいて読取られる別の256個のデータ・ポイン トとが発生されるようにしてあることを特徴とする請求項12の回路。 15.電気手術器10の複数の動作パラメータをモニタして、それら複数の動 作パラメータを、該電気手術器10から供給される高周波エネルギにかかる負荷 に関連させて制御する方法において、 前記電気手術器10の出力から供給される高周波エネルギを受取りその供給さ れる高周波エネルギにかかる負荷に応答し得るように接続された検出回路11に よって、負荷がかかっているときの前記電気手術器10の動作を表す複数のパラ メータを収集するステップと、 前記検出回路11に接続された信号補正部12によって、収集された信号のパ ラメータに強調処理を施すステップと、 前記信号補正部12から信号を受取るように接続されたアナログ・ディジタル ・コンバータ18によって、前記信号をアナログ形式からディジタル形式へ変換 するステップと、 前記信号をディジタル形式でデータ・メモリ21に記憶させて、それら信号を 該データ・メモリ21からプロセッサへ転送できるようにするステップと、 記憶されている前記信号が前記データ・メモリ21から前記プロセッサ20へ 受渡されるようにするステップと、 前記プロセッサ20によって、前記信号を処理しつつそれと並行して前記電気 手術器10のモニタ及び制御を連続的に行い、前記電気手術器10ののモニタ及 び制御を行うには、前記高周波エネルギの波形パルス列の、電圧、電流、電力、 負荷インピーダンス、漏れ電流、スペクトル成分、及び/または波高率を測定す るようにするステップと、 を含んでいることを特徴とする方法。 16.前記信号を処理しつつそれと並行して前記電気手術器10のモニタ及び 制御を連続的に行う前記ステップが、互いに隣接するサイクルにおいて信号を得 るタイミングをシフトすることを含んでいることを特徴とする請求項15記載の 動作パラメータをモニタする方法。 17.一次巻線と二次巻線とを有する出力トランスを備えた電気手術器10の 複数の動作パラメータをモニタして、それら複数の動作パラメータを、該電気手 術器10から供給される高周波エネルギにかかる負荷に関連させてリアルタイム で制御するための回路において、 前記電気手術器10の出力から供給される高周波エネルギを受取りその供給さ れる高周波エネルギにかかる負荷に応答し得るように接続された検出回路11で あって、前記二次巻線が発生する電流及び電圧の瞬時値を提供するように接続さ れており、それによって、負荷がかかっているときの前記電気手術器10の動作 を表す複数のパラメータを収集し得るようにした検出回路11と、 前記検出回路11に接続された信号補正部12であって、信号の処理とフィー ドバックとに応答して、前記検出回路から受取ったパラメータの振幅を強調手段 によって調節ないし減衰する信号補正部12と、 前記信号補正部に接続されたバッファであって、収集され強調処理を施されて そのレベルを設定されたパラメータを受取るバッファと、 前記バッファに接続されたフラッシュ・タイプのアナログ・ディジタル・コン バータ18であって、前記バッファから信号を受取り、受取った信号のアナログ 形式からディジタル形式への変換を1回のサイクルの間に複数回に亙って行うア ナログ・ディジタル・コンバータ18と、 前記アナログ・ディジタル・コンバータに接続されたデータ・メモリ21であ って、変換後の前記信号をディジタル形式で記憶させておくためのデータ・メモ リ21と、 記憶されている前記信号を前記データ・メモリ21から受取れるように該デー タ・メモリ21に接続されたプロセッサ20であって、記憶されている前記信号 を処理しつつそれと並行して前記電気手術器10のモニタを連続的に行い、前記 電気手術器10のモニタを行うには、前記高周波エネルギの波形パルス列の、電 圧、電流、電力、負荷インピーダンス、漏れ電流、スペクトル成分、及び/また は波高率を測定するようにしてあり、それによって得られた測定値に従って前記 電気手術器10の制御を行うプロセッサ20と、 前記プロセッサ20に接続されたサンプル・クロック19であって、ディジタ ル化された信号を前記プロセッサ20から受取るタイミングを設定すると共に、 移相を利用して信号の分解能を向上させて、前記プロセッサ20が、移相を利用 しないときに測定値を取扱い得る周波数より高い周波数で測定値を取扱い得るよ うにしており、更に、測定された負荷に応じて出力をリアルタイムで補正するこ とができるだけの十分な高速で前記電気手術器10の出力をモニタするタイミン グを設定するサンプル・クロック19と、 を備えたことを特徴とする回路。
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Application Number | Priority Date | Filing Date | Title |
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US08/047,907 | 1993-04-19 | ||
US08/047,907 US5370645A (en) | 1993-04-19 | 1993-04-19 | Electrosurgical processor and method of use |
US047,907 | 1993-04-19 |
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JPH08504646A true JPH08504646A (ja) | 1996-05-21 |
JP2671966B2 JP2671966B2 (ja) | 1997-11-05 |
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JP6522952A Expired - Lifetime JP2671966B2 (ja) | 1993-04-19 | 1994-04-06 | 電気手術器用の処理装置及びその使用方法 |
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US (1) | US5370645A (ja) |
EP (1) | EP0695144B1 (ja) |
JP (1) | JP2671966B2 (ja) |
AU (1) | AU684756B2 (ja) |
CA (1) | CA2160017C (ja) |
DE (1) | DE69415157T2 (ja) |
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- 1994-04-06 DE DE69415157T patent/DE69415157T2/de not_active Expired - Lifetime
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- 1994-04-06 JP JP6522952A patent/JP2671966B2/ja not_active Expired - Lifetime
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- 1994-04-06 CA CA002160017A patent/CA2160017C/en not_active Expired - Lifetime
- 1994-04-18 FI FI941787A patent/FI941787A/fi not_active Application Discontinuation
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JP2015024136A (ja) * | 2013-07-24 | 2015-02-05 | コヴィディエン リミテッド パートナーシップ | マルチステージ電力コンバーターを用いて電気外科用エネルギーを発生させるシステムおよび方法 |
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US5370645A (en) | 1994-12-06 |
FI941787A0 (fi) | 1994-04-18 |
FI941787A (fi) | 1994-10-20 |
NO954153D0 (no) | 1995-10-18 |
AU684756B2 (en) | 1998-01-08 |
AU6289394A (en) | 1994-11-08 |
DE69415157D1 (de) | 1999-01-21 |
DE69415157T2 (de) | 1999-05-06 |
WO1994023659A1 (en) | 1994-10-27 |
EP0695144A1 (en) | 1996-02-07 |
CA2160017C (en) | 1999-08-24 |
JP2671966B2 (ja) | 1997-11-05 |
CA2160017A1 (en) | 1994-10-27 |
EP0695144B1 (en) | 1998-12-09 |
NO954153L (no) | 1995-10-18 |
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