JP4774101B2 - 組織の焼灼のための装置 - Google Patents
組織の焼灼のための装置 Download PDFInfo
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Description
インピーダンス:2〜500オーム、一般には2〜200オーム
電圧:5〜500ボルト、一般には50〜250ボルト
時間:1〜1200秒、一般には5〜30秒
エネルギ:1〜30,000ジュール、一般には1,000〜10,000ジュール
現時点で好ましい実施例においては、電力発生器は、定電圧または定電流設計ではなく、一定出力の電力設計から成る。本発明の設計においては、電力出力は、システムにかかる負荷に基づいて設定される。従って、システムに非常に高いインピーダンスの負荷がかかる場合、アーク放電を避けるため、電圧が妥当なレベルに維持される。電力発生器が使用される用途(すなわち電気焼灼)においては、インピーダンスの範囲は、組織の焼灼中、例えば、2オームから150オームの間で変化しうる。本発明の電力源は、一定の電力を適用することによって、最初に組織が焼灼されるときの初期乾燥を達成するため、低いインピーダンスにおいて大きな電流を提供し、焼灼が進行するにつれて、組織の封鎖プロセスを完了するために、より高い電圧を印可する。このように、本発明は、焼灼プロセスの開始時には、より大きな電流と、より低い電圧とを提供し、プロセスの封鎖段階においては、より高い電圧と、より小さい電流とを提供する。このような電力発生器を制御するうえで要求されることは、システムが電力を監視することのみである。
12 第一複合電極
14 第二電極
16 高周波電力供給器
T 組織
50 電気外科プローブ
56 ジョー
58 末端部
60 手前側端部
62 ハンドルアセンブリ
64 レバーアセンブリ
300 システム
302, 304 電極構造
310 導電性片
330 マイクロプロセッサ
340 プロファイル
350 制御電子回路
355 導電性経路
360 戻り経路
365 スマートカードリーダー
Claims (25)
- 組織を焼灼する装置であって、
組織部分の治療面に係合する複数の電極と、
当該治療面の間の組織を焼灼するために高周波電力を当該電極に選択的に適用するように、各出力チャネルが、当該電極に接続されるように構成されている、複数の個々に調整可能な出力チャネルを有する電力供給器であって、特定な外科手術手順を実行するように形成される個々のプロファイルに従って、高周波電力を適用するように、各出力チャネルが、構成されている、電力供給器と、
当該電極および/または当該組織に近接する当該高周波電力を監視し、かつ、電流、電圧、インピーダンス、エネルギ、電力、時間、温度のうちの任意の2つに基づいて、当該高周波電力を変調する、ように構成されている前記複数の電極の内の少なくとも1つの電極に近接する少なくとも1つのセンサであって、当該監視と当該変調が、当該プロファイルの少なくとも1つに従って実行される、センサと、
を備える、装置。 - 当該電極の少なくとも1つが、適合性の導電性面を備える、請求項1に記載の装置。
- 当該電極の少なくとも1つが、剛性の導電性面を備える、請求項1に記載の装置。
- 組織を焼灼する装置であって、
当該組織の1つ以上の表面に係合する複数の電極と、
当該電極に選択的に接続可能である複数のチャネルを有し、当該電極に高周波エネルギを選択的に適用する電力供給器であって、焼灼される組織に基づいて多数の、選択可能で、調整可能な設定を提供する、電力供給器と、
当該電力供給器を制御するように構成されている、作用的にメモリと結合されているプロセッサであって、当該メモリが、焼灼される組織に基づいて当該多数の、選択可能で、調整可能な設定を含む、プロセッサと、
焼灼中に監視される電流、電圧、インピーダンス、エネルギ、電力、時間、温度のうちの何れかに基づいて、当該電力供給器をリアルタイムで変調する自動フィードバックシステムと、
当該電力供給器からの高周波エネルギを当該電極に供給して当該エネルギを当該電極によって当該組織に適用し、当該電極のうちの異なる電極に選択的に通電し、かつ、当該電極が接触している組織を焼灼するのに十分な時間および量だけ、当該電極の少なくとも2つを介して当該電力を当該組織に独立的に適用する、手段と、
を備えており、
電極の各々が、エネルギ伝搬と、高周波サイクルの監視、変調、および終了に関して独立に扱われ、かつ、
電極の各々が、リアルタイムで変調される異なる電力曲線を有することができる、
装置。 - 当該自動フィードバックシステムが、
電流、電圧、インピーダンス、エネルギ、電力、時間、温度のうちの何れか1つおよびこれらの任意の組合せを備えるパラメータを監視する手段、
をさらに備える、請求項4に記載の装置。 - 当該監視されるパラメータを、事前の経験的分析に基づいて組織の封鎖の質を判定するアルゴリズムに適用する数学モデル、
をさらに備えており、
実施されている手順についての条件が、過去の経験から得られた受入れ条件を、安全かつ反復的に、満足すると判断されたときに、焼灼サイクルを終了させることによって、組織の封鎖が最適化されるように電力供給器の出力が変調される、
請求項5に記載の装置。 - 当該条件が、インピーダンス、温度、圧力値のうちの少なくとも1つを備えており、
当該変調が、所定の時点から所定の時間だけ電力レベルを続行するステップ、または、特定のインピーダンスおよび圧力または温度のしきい値に達したとき、電力レベルを下げる(または逆に上げる)ステップを備える、
請求項6に記載の装置。 - 当該アルゴリズムが、組織の封鎖サイクルを最適化するための、電力、電圧、および/またはエネルギの複数回の変調、ステップ機能、または継続的な変更のうちの何れか1つを備えており、
特定の電極に接触している組織の特定の部分についてのフィードバックデータの結果として、電極の各々が、異なるサイクル時間と、電力、電流、電圧、およびエネルギの異なるプロファイルとを持つことができる、
請求項6に記載の装置。 - 当該電力供給器が、
一定出力の電力回路、
をさらに備える、請求項4に記載の装置。 - 当該電力供給器が、
プロファイルに従って望ましい電力を設定する手段、
をさらに備える、請求項4に記載の装置。 - 当該電力供給器が、複数の出力チャネルを備えており、当該出力チャネルの各々が、複数の電極の各々に電力源が提供されるように独立して調整可能である、請求項4に記載の装置。
- 当該自動フィードバックシステムが、
1つ以上のセンサを
さらに備える、請求項4に記載の装置。 - 当該電力供給器が、所望の焼灼手術に従う当該電極間の電力曲線と電力分配とによって動作するように、1つ以上のプロファイルによって設定される、請求項4に記載の装置。
- 特定の焼灼手術用に当該電力供給器を設定するためと、当該焼灼手術中に前記電力供給器の動作を示す情報を記録するためとに、使用されるスマートカードを読み取るスマートカードリーダーを、当該メモリが、備える、請求項4に記載の装置。
- 当該電力供給器が、
焼灼される前記組織のリアルタイムのプロファイルを獲得し、かつ、当該リアルタイムのプロファイルを使用して、あらかじめ確立されているプロファイルを特定の焼灼手順に適合させる手段、
をさらに備えており、
特定の焼灼手順に対し以前に確立されているプロファイルが、焼灼される前記組織のリアルタイムのプロファイルに従って修正される、
請求項4に記載の装置。 - 当該電力供給器が、
終点に達するタイミングを決定するしきい値を設定する手段、
をさらに備えており、
当該しきい値が、インピーダンス、電流、電圧、エネルギ、電力、温度、時間要素の何れか1つおよびこれらの組合せを備えることができる測定値、によって決定される、
請求項4に記載の装置。 - 当該自動フィードバックシステムが、
焼灼中に2つ以上のパラメータを監視し、かつ、しきい値に達したときを判定する手段、
をさらに備える、請求項4に記載の装置。 - 当該しきい値に達した時点で、終点手順が実施される、請求項17に記載の装置。
- 当該自動フィードバックシステムが、
選択された電極対または一連の電極の間のインピーダンスを測定する手段、
をさらに備える、請求項4に記載の装置。 - 当該自動フィードバックシステムが、
1つ以上の当該電極に関連付けられている器具の表面に沿う1つ以上の肉体的変化に関連して温度を測定する手段、
をさらに備える、請求項4に記載の装置。 - 当該自動フィードバックシステムが、
1つ以上の当該電極に関連付けられている少なくとも1つのプローブジョーの長手方向に位置している局所歪みゲージによって、焼灼の効果を測定する手段、
をさらに備える、請求項4に記載の装置。 - 当該局所歪みゲージが、焼灼プロファイルをあらかじめ計算する、請求項21に記載の装置。
- 当該電力供給器が、
サイクルの開始時に、電極の各々に組織が存在しているか否か、またはインピーダンス、圧力、またはこれらのおよび/またはその他のパラメータとの任意の組合せを使用していないかを検出する手段を、さらに、備え、何れかの電極対に組織が存在していない場合、その電極対がアイドル状態となり、かつ当該電力供給器が、どの(1つ以上の)電極がアイドル状態であるかを示す、
請求項4に記載の装置。 - 当該電力供給器が、
当該サイクルがアクティブであるかまたは完了したかを示す、焼灼サイクルのステータスを提供するインジケータを、各電極対毎に、さらに備える、請求項23に記載の装置。 - 当該サイクルが開始して、当該サイクルの何れかがアイドル、アクティブ、および完了したの何れかを示すと、各電極に対し、3モードのステータス「ライト」またはその他の可視のステータスインジケータが、提供される、請求項24に記載の装置。
Applications Claiming Priority (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US68093705P | 2005-05-12 | 2005-05-12 | |
US60/680,937 | 2005-05-12 | ||
US72572005P | 2005-10-11 | 2005-10-11 | |
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CN101188978B (zh) | 2010-09-01 |
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CA2608152C (en) | 2012-11-13 |
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WO2006124595A1 (en) | 2006-11-23 |
CA2608152A1 (en) | 2006-11-23 |
KR101007106B1 (ko) | 2011-01-10 |
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US8888770B2 (en) | 2014-11-18 |
ATE446719T1 (de) | 2009-11-15 |
KR20080015000A (ko) | 2008-02-15 |
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