JP5371215B2 - 初期の組織インピーダンスを測定するためのシステムおよび方法 - Google Patents
初期の組織インピーダンスを測定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
- 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
- A61B18/1445—Probes having pivoting end effectors, e.g. forceps at the distal end of a shaft, e.g. forceps or scissors at the end of a rigid rod
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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
- A61B2018/00571—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for achieving a particular surgical effect
- A61B2018/0063—Sealing
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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
- A61B2018/00696—Controlled or regulated parameters
- A61B2018/00702—Power or energy
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- 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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Description
(項目A1)
電気外科エネルギーを組織に供給するように適合された、電気外科発電機であって、該電気外科発電機は、
組織に電気外科エネルギーを供給するように適合されたRF出力ステージであって、該RF出力ステージは、少なくとも1つの実質的に一定である値を有する電気信号を組織に供給して、初期の組織インピーダンス応答を決定するようにさらに適合されている、RF出力ステージ;
初期の組織インピーダンス応答を連続的に監視するように適合されたセンサ回路であって、該初期の組織インピーダンス応答は、初期インピーダンス、インピーダンス低下、インピーダンス最小値および最初のインピーダンス上昇のうちの少なくとも1つを含む、センサ回路;ならびに
該初期インピーダンス、該インピーダンス低下、該インピーダンス最小値および該最初のインピーダンス上昇のうちの少なくとも1つの関数として、少なくとも1つの組織処置パラメータを発生させるように適合されたマイクロプロセッサ、
を備える、電気外科発電機。
前記マイクロプロセッサが、前記少なくとも1つの組織パラメータに基づいて、前記電気外科発電機の出力を調節するようにさらに適合されている、項目A1に記載の電気外科発電機。
前記少なくとも1つの組織パラメータが、組織に付与されるべき圧力、エネルギー印加の持続時間、供給されるべきエネルギーの量、および目標インピーダンス軌道からなる群より選択される、項目A1に記載の電気外科発電機。
前記電気外科発電機が、電気外科エネルギーを組織に供給するように適合された少なくとも1つの能動電極を備える電気外科器具に接続される、項目A1に記載の電気外科発電機。
前記電気外科器具が、組織を密封するための電気外科鉗子であり、該鉗子が、
シャフト部材の遠位端に配置されたエンドエフェクタアセンブリを有する少なくとも1つのシャフト部材であって、該エンドエフェクタアセンブリは、第一の位置から少なくとも1つの引き続く位置へと移動可能な顎部材を備え、該第一の位置において、該顎部材は、互いに対して間隔を空けた関係であり、そして該少なくとも1つの引き続く位置において、該顎部材は、該顎部材の間に組織を把持するために協働する、シャフト部材;および
該顎部材に対して並置した関係で該顎部材の各々に取り付けられた密封プレートであって、該密封プレートは、該密封プレートの間に保持された組織を通して電気外科エネルギーを連絡させるように、該電気外科発電機に接続されるように適合されている、密封プレート、
を備える、項目A4に記載の電気外科発電機。
前記電気信号の前記一定の値が、一定の電圧、一定の電流、一定の電力、および一定のエネルギーからなる群より選択される、項目A1に記載の電気外科発電機。
(項目B1)
電気外科システムであって、該電気外科システムは、
組織に電気外科エネルギーを供給するように適合された電気外科発電機であって、該発電機は、少なくとも1つの実質的に一定である値を有する電気信号を組織に供給して、初期の組織インピーダンス応答を決定するようにさらに適合されており、該発電機は、
初期の組織インピーダンス応答を連続的に監視するように適合されたセンサ回路であって、該初期の組織インピーダンス応答は、初期インピーダンス、インピーダンス低下、インピーダンス最小値および最初のインピーダンス上昇を含む、センサ回路;および
該初期インピーダンス、該インピーダンス低下、該インピーダンス最小値、および該最初のインピーダンス上昇のうちの少なくとも1つの関数として、少なくとも1つの組織処置パラメータを生成するように適合されている、マイクロプロセッサ、
を備える、発電機;ならびに
電気外科器具であって、該電気外科器具は、処置のために組織に電気外科エネルギーを印加するように適合された少なくとも1つの能動電極を備える、電気外科器具、
を備える、電気外科システム。
前記マイクロプロセッサが、前記少なくとも1つの組織パラメータに基づいて前記電気外科発電機の出力を調節するようにさらに適合されている、項目B1に記載の電気外科システム。
前記少なくとも1つの組織パラメータが、組織に付与されるべき圧力、エネルギー印加の持続時間、供給されるべきエネルギーの量、および目標インピーダンス軌道からなる群より選択される、項目B1に記載の電気外科システム。
前記電気外科器具が、組織を密封するための電気外科鉗子であり、該鉗子が、
シャフト部材の遠位端に配置されたエンドエフェクタアセンブリを有する少なくとも1つのシャフト部材であって、該エンドエフェクタアセンブリは、第一の位置から少なくとも1つの引き続く位置へと移動可能な顎部材を備え、該第一の位置において、該顎部材は、互いに対して間隔を空けた関係にあり、そして該少なくとも1つの引き続く位置において、該顎部材は、該顎部材の間に組織を把持するように協働する、少なくとも1つのシャフト部材;および
該顎部材に対して並置された関係で、該顎部材の各々に取り付けられた密封プレートであって、該密封プレートは、該密封プレートの間に保持された組織に通して電気外科エネルギーを連絡させるように、該電気外科発電機に接続されるように適合されている、密封プレート、
を備える、項目B1に記載の電気外科システム。
前記電気信号の前記一定の値が、一定の電圧、一定の電流、一定の電力、および一定のエネルギーからなる群より選択される項目B1に記載の電気外科システム。
電気外科手順を実施するための方法であって、該方法は、
少なくとも1つの実質的に一定である値を有する電気信号を組織に供給して、初期の組織インピーダンス応答を決定する工程であって、該初期の組織応答が、初期インピーダンス、インピーダンス低下、インピーダンス最小値、および最初のインピーダンス上昇のうちの少なくとも1つを含む、工程;
該初期の組織インピーダンス応答を連続的に監視する工程;ならびに
少なくとも1つの組織処置パラメータを、該初期インピーダンス、該インピーダンス低下、該インピーダンス最小値、および該最初のインピーダンス上昇のうちの少なくとも1つの関数として生成する工程、
を包含する、方法。
前記電気外科発電機の出力を、前記少なくとも1つの組織パラメータに基づいて調節する工程をさらに包含する、項目B6に記載の方法。
前記少なくとも1つの組織パラメータが、組織に付与されるべき圧力、エネルギー印加の持続時間、供給されるべきエネルギーの量、および目標インピーダンス軌道からなる群より選択される、項目B7に記載の方法。
組織に電気外科エネルギーを印加するように適合された少なくとも1つの能動電極を備える、電気外科器具を提供する工程をさらに包含する、項目B6に記載の方法。
前記電気外科器具を提供する工程が、組織を密封するための電気外科鉗子を提供する工程をさらに包含し、該鉗子が、
シャフト部材の遠位端に配置されたエンドエフェクタアセンブリを有する少なくとも1つのシャフト部材であって、該エンドエフェクタアセンブリが、第一の位置から少なくとも1つの引き続く位置へと移動可能な顎部材を備え、該第一の位置において、該顎部材は、互いに対して間隔を空けた関係にあり、そして該少なくとも1つの引き続く位置において、該顎部材は、該顎部材の間に組織を把持するように協働する、少なくとも1つのシャフト部材;および
該顎部材と並置された関係で該顎部材の各々に取り付けられた密封プレートであって、該密封プレートは、該密封プレートの間に保持された組織に通して電気外科エネルギーを連絡させるように、前記電気外科発電機に接続されるように適合されている、密封プレート、
を備える、項目B9に記載の方法。
前記電気信号の前記一定の値が、一定の電圧、一定の電流、一定の電力、および一定のエネルギーからなる群より選択される、項目B6に記載の方法。
本開示は、電気外科手順を実施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、電気外科発電機および器具(例えば、電気外科鉗子)を備える。この発電機は、一定の電圧の初期問合せ信号を組織に供給し、そして初期の組織インピーダンス応答を測定する。その後、この発電機は、この初期の組織インピーダンス応答を分析し、そしてこの発電機に対応する出力を選択するために使用される、対応する処置パラメータを選択する。
本発明により、効率的かつ一貫して組織を密封する電気外科システムが提供される。
本開示の特定の実施形態は、添付の図面を参照しながら、本明細書中で以下に記載される。以下の説明において、周知の機能または構成は、本開示を不必要な細部において複雑にすることを回避するために、詳細には記載されない。本開示による本発明は、単極電気外科システムまたは双極電気外科システムのいずれを用いる使用のためにも適合され得ることを、当業者は理解する。
12 シャフト
14 遠位端
16 近位端
20 発電機
21 ハウジング
23 ケーブル
40 ハンドルアセンブリ
42 可動ハンドル
50 固定ハンドル
70 トリガアセンブリ
80 回転アセンブリ
100 エンドエフェクタアセンブリ
Claims (6)
- 電気外科エネルギーを組織に供給するように適合された電気外科発電機であって、
該電気外科発電機は、
組織に電気外科エネルギーを供給するように適合されたRF出力ステージであって、該RF出力ステージは、少なくとも1つの実質的に一定である値を有する電気信号を組織に供給して、初期の組織インピーダンス応答を決定するようにさらに適合されている、RF出力ステージと、
初期の組織インピーダンス応答を連続的に監視するように適合されたセンサ回路であって、該初期の組織インピーダンス応答は、初期インピーダンス、インピーダンス低下速度、インピーダンス最小値、最初のインピーダンス上昇速度を含む、センサ回路と、
該初期インピーダンス、該インピーダンス低下速度、該インピーダンス最小値、該最初のインピーダンス上昇速度の関数として、少なくとも1つの組織処置パラメータを発生させるように適合されたマイクロプロセッサと
を含む、電気外科発電機。 - 前記マイクロプロセッサは、前記少なくとも1つの組織パラメータに基づいて、前記電気外科発電機の出力を調節するようにさらに適合されている、請求項1に記載の電気外科発電機。
- 前記少なくとも1つの組織パラメータは、組織に付与されるべき圧力、エネルギー印加の持続時間、供給されるべきエネルギーの量、目標インピーダンス軌道からなる群より選択される、請求項1に記載の電気外科発電機。
- 前記電気外科発電機は、電気外科エネルギーを組織に供給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器具に接続される、請求項1に記載の電気外科発電機。
- 前記電気外科器具は、組織を密封するための電気外科鉗子であり、
該鉗子は、
シャフト部材の遠位端に配置されたエンドエフェクタアセンブリを有する少なくとも1つのシャフト部材であって、該エンドエフェクタアセンブリは、第一の位置から少なくとも1つの引き続く位置へと移動可能な顎部材を含み、該第一の位置において、該顎部材は、互いに対して間隔を空けた関係であり、該少なくとも1つの引き続く位置において、該顎部材は、該顎部材の間に組織を把持するために協働する、シャフト部材と、
該顎部材に対して並置した関係で該顎部材の各々に取り付けられた密封プレートであって、該密封プレートは、該密封プレートの間に保持された組織を通して電気外科エネルギーを連絡させるように、該電気外科発電機に接続されるように適合されている、密封プレートと
を含む、請求項4に記載の電気外科発電機。 - 前記電気信号の前記一定の値は、一定の電圧、一定の電流、一定の電力、一定のエネルギーからなる群より選択される、請求項1に記載の電気外科発電機。
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US11/500,687 US8034049B2 (en) | 2006-08-08 | 2006-08-08 | System and method for measuring initial tissue impedance |
US11/500,687 | 2006-08-08 |
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CA2524289C (en) | 2003-05-01 | 2016-01-19 | Sherwood Services Ag | Method and system for programming and controlling an electrosurgical generator system |
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-
2006
- 2006-08-08 US US11/500,687 patent/US8034049B2/en active Active
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2007
- 2007-08-07 AU AU2007203682A patent/AU2007203682B2/en not_active Ceased
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- 2007-08-07 JP JP2007205959A patent/JP5371215B2/ja not_active Expired - Fee Related
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ES2379996T3 (es) | 2012-05-07 |
EP2289442A1 (en) | 2011-03-02 |
JP2008036439A (ja) | 2008-02-21 |
EP2289442B1 (en) | 2012-10-03 |
US8034049B2 (en) | 2011-10-11 |
CA2596177C (en) | 2016-09-20 |
JP2013046825A (ja) | 2013-03-07 |
EP1886636B1 (en) | 2012-03-07 |
AU2007203682A1 (en) | 2008-02-28 |
US20120022521A1 (en) | 2012-01-26 |
AU2007203682B2 (en) | 2013-05-16 |
EP1886636A1 (en) | 2008-02-13 |
CA2596177A1 (en) | 2008-02-08 |
US20080039831A1 (en) | 2008-02-14 |
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