公开(公告)号：NO943627L

公开(公告)日：1994-09-29

申请号：NO943627

申请日：1994-09-29

Applicant: VALLEYLAB INC

Inventor： KLICEK MICHAEL S

IPC: A61B18/14 ,  A61B17/39

Abstract: An electrosurgical bipolar treating apparatus comprising a handpiece to which is connected a first active electrode and a second return electrode having exposed distal ends which define a bipolar tip for electrosurgically treating tissue at an operational site on a patient, which tip is structured so that both distal ends simultaneously contact said tissue and wherein the active electrode has a higher tissue to electrode impedance than the return electrode.

公开(公告)号：NO934404L

公开(公告)日：1993-12-03

申请号：NO934404

申请日：1993-12-03

Applicant: VALLEYLAB INC

Inventor： KLICEK MICHAEL S ,  ZIEVE DAVID A

IPC: A61B18/00 ,  A61B17/22 ,  A61B18/12 ,  A61M1/00 ,  A61B17/39

Abstract: An electrical circuit system which provides electrical energy to a surgical apparatus having ultrasonic fragmentation, aspiration and electrosurgical coagulation capabilities, which system also includes an impedance sensing network and automatic feedback power output control to reduce RF power output as load impedance increases, thereby reducing RF leakage current.

公开(公告)号：CA2110684A1

公开(公告)日：1992-12-10

申请号：CA2110684

申请日：1992-05-04

Applicant: VALLEYLAB INC

Inventor： KLICEK MICHAEL S ,  ZIEVE DAVID A

IPC: A61B18/00 ,  A61B17/22 ,  A61B18/12 ,  A61M1/00 ,  A61B17/39

Abstract: An electrical circuit system which provides electrical energy to a surgical apparatus having ultrasonic fragmentation, aspiration and electrosurgical coagulation capabilities, which system also includes an impedance sensing network and automatic feedback power output control to reduce RF power output as load impedance increases, thereby reducing RF leakage current.

公开(公告)号：CA2110684C

公开(公告)日：1998-04-28

申请号：CA2110684

申请日：1992-05-04

Applicant: VALLEYLAB INC

Inventor： KLICEK MICHAEL S ,  ZIEVE DAVID A

IPC: A61B18/00 ,  A61B17/22 ,  A61B18/12 ,  A61M1/00 ,  A61B17/39

Abstract: An electrical circuit system (1) which provides electrical energy to a surgical apparatus having ultrasonic fragmentation, aspiration and electrosurgical coagulation capabilities, which system also inclu des an impedance sensing network (10) and automatic feedback power output control to reduce RF power output as load impeda nce increases, thereby reducing RF leakage current.

公开(公告)号：MX9709905A

公开(公告)日：1998-03-29

申请号：MX9709905

申请日：1997-12-08

Applicant: VALLEYLAB INC

Inventor： KLICEK MICHAEL S ,  SODNICAR MATTHEW J

IPC: A61B17/39

Abstract: Un generador electroquirurgico tiene un diseño mejorado para generar formas de onda de onda de salida usando un microprocesador; las formas de onda son generadas en forma de una salida digital en serie del microprocesador; la salida digital en serie se transforma a una salida electroquirurgica de radio frecuencia en una etapa amplificadora; el diseño mejorado incluye también un circuito para monitorear para monitorear continuamente la salida digital en serie promediando en tiempo la salida y comparar después ese valor por un umbral; el generador electroquirurgico comprendeun microprocesador, un algoritmo en el microprocesador capaz de conmutar una puerta de salida del microprocesador un amplificador, un suministro de energía de corriente directa y alto voltaje ajustable; el circuito al paciente incluyendo un electrodo activo y un electrodo de retorno; el generador electroquirurgico puede comprender además un selector de modos para seleccionar uno de una multitud de patrones de pulso en la salida digital en serie y una multitud de secuencias de mando en el algoritmo, en donde cada secuencia de mando está diseñada para producir uno de un multitud de patrones; puede haber también un circuito amortiguador de tanquepara reducir la amplitud de los picos de voltaje en la salida electroquirurgica y un circuito de supresion de pulsos; el circuito para monitorear comprende un filtro de paso bajo y un comparador para verificar la operacion del generador de formas de ondas.

公开(公告)号：AU5700996A

公开(公告)日：1996-12-24

申请号：AU5700996

申请日：1996-06-03

Applicant: VALLEYLAB INC

Inventor： KLICEK MICHAEL S ,  SODNICAR MATTHEW J

IPC: A61B18/12 ,  A61B17/39

公开(公告)号：AU5700796A

公开(公告)日：1996-12-24

申请号：AU5700796

申请日：1996-06-03

Applicant: VALLEYLAB INC

Inventor： BELL GREGORY J ,  KLICEK MICHAEL S ,  PATERSON WILLIAM G

IPC: A61B18/12 ,  A61B17/39

公开(公告)号：FI961529A0

公开(公告)日：1996-04-04

申请号：FI961529

申请日：1996-04-04

Applicant: VALLEYLAB INC

Inventor： KLICEK MICHAEL S

IPC: A61B17/00 ,  A61B18/12 ,  A61B18/14 ,  A61B

公开(公告)号：CA2128997C

公开(公告)日：1995-05-30

申请号：CA2128997

申请日：1991-03-13

Applicant: VALLEYLAB INC

Inventor： DELAHUERGA LOUIS ,  STODDARD ROBERT B ,  KLICEK MICHAEL S

IPC: A61B18/12 ,  A61B18/00 ,  A61B17/39

Abstract: A device for enhancing the safety and efficiency of a hand-operated electrosurgical pencil having an exposed electrode with a distal end defining a tip for cutting biological tissue, which device comprises a nose piece adapted to be mounted about said electrode and defining at least one pathway for a stream of gas which shrouds the electrode at or near the tip thereof, and electrosurgical apparatus incorporating the device.

公开(公告)号：FI944522A

公开(公告)日：1994-09-29

申请号：FI944522

申请日：1994-09-29

Applicant: VALLEYLAB INC

Inventor： KLICEK MICHAEL S

IPC: A61B18/14 ,  A61B

Abstract: An electrosurgical bipolar treating apparatus comprising a handpiece to which is connected a first active electrode and a second return electrode having exposed distal ends which define a bipolar tip for electrosurgically treating tissue at an operational site on a patient, which tip is structured so that both distal ends simultaneously contact said tissue and wherein the active electrode has a higher tissue to electrode impedance than the return electrode.