JPH10507393A - 神経外科的電気外科用装置のための制御システム - Google Patents
神経外科的電気外科用装置のための制御システムInfo
- Publication number
- JPH10507393A JPH10507393A JP9500256A JP50025697A JPH10507393A JP H10507393 A JPH10507393 A JP H10507393A JP 9500256 A JP9500256 A JP 9500256A JP 50025697 A JP50025697 A JP 50025697A JP H10507393 A JPH10507393 A JP H10507393A
- Authority
- JP
- Japan
- Prior art keywords
- tissue
- signal
- measure
- impedance
- rms
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
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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
-
- 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
Abstract
Description
Claims (1)
- 【特許請求の範囲】 1.患者の組織及び体液12に対して外科医により使用されることのできる神 経外科用二極式電極11のための制御システム10であって、 高周波エネルギーの源13′ 高周波エネルギーの源13′の動作周波数に同調したコンデンサ及びインダク タを有している、高周波エネルギーの源13′の出力としての、高周波エネルギ ーの源13′におけるタンク回路網22, 高周波エネルギーの源13′の出力に接続された二極式電極11, 組織及び体液12のインピーダンスより実質的に小さい単位面積当りの抵抗を 持った高導電性材料の二極式電極11における接触面25, 高周波エネルギーの源13′と接触面25の一つとの間の接続部に誘導的に取 り付けられていて、組織及び体液12の治療の特定の瞬間における組織及び体液 12の負荷の瞬間的に変化するインピーダンスに応答し、接触面25間で組織及 び体液12を通るRMS電流の瞬時値に関する測度20を供給する第1電流変換 器17, 接触面25の間に与えられたコンデンサ23を通るRMS電流に応答するよう に高周波エネルギーの源13′に取り付けられていて、高周波エネルギーの源1 3′における組織インピーダンス負荷に起因する変化する電流の変化及び無線周 波供給エネルギーにおける変動に起因するそれの出力における変化の信号26を 供給し、接触面25間の組織及び体液12を横切るRMS電圧の瞬時値を表し且 つこれに重み付け値により相関させられた信号19を供給する第2電流変換器1 8, 高周波エネルギーの源13′に接続されていて、接触面により組織及び体液1 2を通して印加されたRMS電流を最初に制御することができ、且つ測度20に より除算された信号19が所定値になるまでそこを通るインピーダンスに応答す ることができ、次に、測度20により除算された信号19が定義値になるまで組 織及び体液12におけるインピーダンスに従って接触面により組織及び体液12 に印加されたRMS電力を調整することができ、その後に測度20により除算さ れた信号19が規定値になるまで接触面間で治療されている組織及び体液12の インピーダンスに印加されるRMS電圧が調整され且つ監視されるように測度2 0により除算された信号19に応答することができ、最後に、前記の規定値が達 成されてその結果治療されている組織及び体液12が湿っているが表面において 凝固しており且つ完全には乾燥していなくて炭化し又は焼痂に変じていない状態 になるまで、RMS電圧を組織及び体液12に印加されるそれのある百分率に合 わせて変化させることによって組織におけるインピーダンスに従って接触面によ り組織及び体液12に印加されるRMS電圧を調整することができる制御器, を含んでいる神経外科用二極式電極11のための制御システム10。 2.前記の制御器が二進方式で動作するマイクロプロセッサ15を含んでいて 、マイクロプロセッサ15が信号19を測度20で除算することができ、マイク ロプロセッサ15が、所定値、定義値及び規定値のための記憶装置を備えていて 、マイクロプロセッサ15が所定値、定義値及び規定値を測度20により除算さ れた信号19と実時間で比較することができる、請求項1の神経外科用二極式電 極11のための制御システム10。 3.前記の制御器が、測度20により除算された信号19が16の所定値にな るまで、RMS電流を実質上一定に維持するためにマイクロプロセッサ15へプ ログラムされたフィードバック技術を有している、請求項2の神経外科用二極式 電極11のための制御システム10。 4.前記の制御器が、測度20により除算された信号19が512の定義値に なるまでRMS電力を実質上一定に維持するためにマイクロプロセッサ15へプ ログラムされたフィードバック技術を有している、請求項2の神経外科用二極式 電極11のための制御システム10。 5.前記の制御器が、測度20により除算された信号19が1024の規定値 になるまでRMS電圧を実質上調整状態に維持するためにマイクロプロセッサ1 5へプログラムされたフィードバック技術を有している、請求項2の神経外科用 二極式電極11のための制御システム10。 6.前記の制御器が、測度20により除算された信号19が1024の規定値 になった後にRMS電圧をその実質的に調整されたレベルのある百分率に維持す るためにマイクロプロセッサ15へプログラムされたフィードバック技術を有し ている、請求項2の神経外科用二極式電極11のための制御システム10。 7.マイクロプロセッサ15が、RMS信号19及びRMS測度20を計算し 、次にこれらを乗算して、RMS電力を実時間で計算する、請求項2の神経外科 用二極式電極11のための制御システム10。 8.前記の制御器が、測度20により除算された信号19が1024の規定値 になった後にRMS電圧をその実質的に調整されたレベルの50パーセントに維 持するためにマイクロプロセッサ15へプログラムされたフィードバック技術を 有している、請求項2の神経外科用二極式電極11のための制御システム10。 9.高周波エネルギーの源13′が高周波電力の源を約1ないし70ワットの 出力の範囲に制限する外科医用電力ノブ38を備えている、請求項1の神経外科 用二極式電極11のための制御システム10。 10.患者の組織及び体液12に外科医により使用されることのできる神経外科 用二極式電極11のための制御システム10であって、 タンク回路網22を含んでいる高周波エネルギーの源13′, 高周波エネルギーの源13′の動作周波数に同調したコンデンサ及びインダク タを有している、高周波エネルギーの源13′の出力としての、高周波エネルギ ーの源13′におけるタンク回路網22, 高周波エネルギーの源13′の出力に接続された二極式電極11, 組織及び体液12のインピーダンスより実質的に小さい単位面積当りの抵抗を 持った高導電性材料の二極式電極11における接触面, 高周波エネルギーの源13′と接触面25の一つとの間の接続部に誘導的に取 り付けられており、組織及び体液12の治療の特定の瞬間における組織及び体液 12の負荷の瞬間的に変化するインピーダンスに応答し、接触面25間で組織及 び体液12を通るRMS電流の瞬時値に関する測度20を供給する第1電流変換 器17, 接触面25の間に与えられたコンデンサ23を通るRMS電流に応答するよう に高周波エネルギーの源13′に取り付けられており、高周波エネルギーの源1 3′における組織インピーダンス負荷に起因する変化する電流の変化及び無線周 波供給エネルギーにおける変動に起因するそれの出力における変化の信号26を 供給し、接触面25間で組織及び体液12を横切るRMS電圧の瞬時値を表し且 つこれに対する重み付け値により相関させられた信号26を供給する第2電流変 換器18, 高周波エネルギーの源13′に接続されており、接触面により組織及び体液1 2を通して印加されたRMS電流、RMS電力及びRMS電圧を調整することが でき且つそこを通るインピーダンスに応答することができ、測度20及び信号1 9の瞬時値を実時間で受けることができる制御器, 二進方式で動作する、前記の制御器におけるマイクロプロセッサ15であって 、前記の制御器から受けてその後に測度20を信号19に関係づけることができ 、所定値のための、及び信号19に関係した測度20が所定値であるときを査定 するための記憶装置を有しており、定義値のための、及び信号19に関係した測 度20が定義値であるときを査定するための記憶装置を有しており、規定値のた めの、及び信号19に関係した測度20が規定値であるときを査定するための記 憶装置を有しており、信号19に関する測度20を所定値、定義値又は規定値と 実時間で比較することができる前記のマイクロプロセッサ15, 信号19に関する測度20が前記の定義値になるまで組織及び体液12におけ るインピーダンスに従って前記の接触面により組織及び体液12に印加されるR MS電力を調整することができ、その後に、信号19に関する測度20が前記の 規定値になるまで前記の接触面の間で治療されている組織及び体液12のインピ ーダンスに印加されるRMS電圧が調整され且つ監視されるように信号19に関 する測度20に応答することができ、最後に、前記の規定値が達成されてその結 果治療されている組織及び体液12が湿っているが表面で凝固しており且つ完全 には乾いていないで炭化し又は焼痂に変じていない状態になるまでRMS電圧を 組織及び体液に印加されるその電圧のある百分率に変化させることによって組織 におけるインピーダンスに従って前記の接触面により組織及び体液12に印加さ れるRMS電圧を調整することができるように接続された前記の制御器, を含んでいる神経外科用二極式電極11のための制御システム10。
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/470,533 US5720744A (en) | 1995-06-06 | 1995-06-06 | Control system for neurosurgery |
US08/470,533 | 1995-06-06 | ||
US470,533 | 1995-06-06 | ||
PCT/IB1996/000547 WO1996039085A1 (en) | 1995-06-06 | 1996-06-03 | A control system for neurosurgical electrosurgical unit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH10507393A true JPH10507393A (ja) | 1998-07-21 |
JP2972349B2 JP2972349B2 (ja) | 1999-11-08 |
Family
ID=23867985
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9500256A Expired - Fee Related JP2972349B2 (ja) | 1995-06-06 | 1996-06-03 | 神経外科的電気外科用装置のための制御システム |
Country Status (5)
Country | Link |
---|---|
US (1) | US5720744A (ja) |
JP (1) | JP2972349B2 (ja) |
AU (1) | AU5700696A (ja) |
CA (1) | CA2220904C (ja) |
WO (1) | WO1996039085A1 (ja) |
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JP2012501697A (ja) * | 2008-09-08 | 2012-01-26 | エルベ エレクトロメディツィン ゲーエムベーハー | ソフト生成器 |
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- 1996-06-03 WO PCT/IB1996/000547 patent/WO1996039085A1/en active Application Filing
- 1996-06-03 AU AU57006/96A patent/AU5700696A/en not_active Abandoned
- 1996-06-03 JP JP9500256A patent/JP2972349B2/ja not_active Expired - Fee Related
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JP2012501697A (ja) * | 2008-09-08 | 2012-01-26 | エルベ エレクトロメディツィン ゲーエムベーハー | ソフト生成器 |
US9144451B2 (en) | 2008-09-08 | 2015-09-29 | Erbe Elektromedizin Gmbh | Soft generator |
Also Published As
Publication number | Publication date |
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CA2220904A1 (en) | 1996-12-12 |
US5720744A (en) | 1998-02-24 |
AU5700696A (en) | 1996-12-24 |
CA2220904C (en) | 2001-08-14 |
WO1996039085A1 (en) | 1996-12-12 |
JP2972349B2 (ja) | 1999-11-08 |
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