公开(公告)号：FI935424A

公开(公告)日：1993-12-03

申请号：FI935424

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

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：CA2128997A1

公开(公告)日：1991-09-16

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

Abstract: A device for enhancing the safety and efficiency of a hand-operated electrosurgical pencil having an electrode 2 with a distal end 2 min defining a tip for cutting or coagulating biological tissue, which device 10 comprises a nose piece adapted to be mounted about said electrode and containing conduit means defining converging pathways for streams of gas which impinge obliquely on said electrode at or near the tip thereof, and electrosurgical apparatus incorporating said device.

公开(公告)号：NO860815L

公开(公告)日：1987-09-07

申请号：NO860815

申请日：1986-03-04

Applicant: VALLEYLAB INC

Inventor： KLICEK MICHAEL S

IPC: A61B20060101 ,  H03K5/156 ,  A61B18/00 ,  A61B18/12 ,  H03K23/00 ,  A61B

Abstract: An electrosurgical generator 10 comprises a patient circuit which includes an active electrode 12 and a return electrode 14. Means 16 of generator 10 generates a pulse train and includes an MXN storage device U 1 having M memory locations where M > 1 and each location having N storage positions where N ≥ 1. The storage device stores at least one K-bit binary signal which is sequentially put out from the storage device. An electrosurgical signal generating means which in response to the K-bit binary signal generates an electrosurgical signal which is applied to the patient circuit.

公开(公告)号：NO860815A

公开(公告)日：1987-09-07

申请号：NO860815

申请日：1986-03-04

Applicant: VALLEYLAB INC

Inventor： KLICEK MICHAEL S

IPC: H03K5/156 ,  A61B20060101 ,  A61B18/00 ,  A61B18/12 ,  H03K23/00 ,  A61B

CPC classification number: A61B18/1206 ,  A61B18/12 ,  A61B2018/0066 ,  A61B2018/00684

公开(公告)号：AT171359T

公开(公告)日：1998-10-15

申请号：AT92911387

申请日：1992-05-04

Applicant: VALLEYLAB INC ,  KLICEK MICHAEL S ,  ZIEVE DAVID A

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：AT156987T

公开(公告)日：1997-09-15

申请号：AT93902903

申请日：1993-01-11

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：AU670258B2

公开(公告)日：1996-07-11

申请号：AU3430693

申请日：1993-01-11

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：FI961529A

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：NO954153L

公开(公告)日：1995-10-18

申请号：NO954153

申请日：1995-10-18

Applicant: VALLEYLAB INC

Inventor： KLICEK MICHAEL S ,  PATERSON WILLIAM G

IPC: A61B18/12 ,  A61B18/14 ,  A61B17/36 ,  A61B17/39

Abstract: A circuit, for monitoring and controlling parameters of an electrosurgical unit, ESU, relative to load and the RF energy, has a load responsive output sensing circuit that measures the ESU load. A signal modifier, attached to the sensing circuit enhances the signals measured and transmits them to a buffer. An analog to digital converter, A/D, digitize the signals and samples wave pulse train at about eight million samples per second. A data memory stores the digitized signals. A RF drive clock connects to the ESU output; a sample clock uses phase shifting to interrogate the input signals to a processor, DSP, at a greater sampling rate of frequency than without. The DSP receives the stored signals from the data memory and processes them while monitoring and calculating ESU parameters measured, i.e. voltage, current, power, load impedance, leakage current, peak to peak voltage, peak to peak current, spectral content and/or crest factor of the RF wave pulse train energy to use as controlling feedback to the either a high voltage power supply in the ESU, regulating the RF drive pulses or both. A method monitors and controls the ESU relative to load has the steps of collecting parameters with the ESU output sensing circuit responsive to loads; enhancing signals with the signal modifier; transmitting signals to the buffer; converting signals with the A/D converter; storing signals in the data memory; receiving signals in the DSP, and processing, monitoring and controlling signals by repeatedly measuring ESU output parameters.

公开(公告)号：NO954153D0

公开(公告)日：1995-10-18

申请号：NO954153

申请日：1995-10-18

Applicant: VALLEYLAB INC

Inventor： KLICEK MICHAEL S ,  PATERSON WILLIAM G

IPC: A61B18/12 ,  A61B18/14 ,  A61B17/36 ,  A61B17/39

Abstract: A circuit, for monitoring and controlling parameters of an electrosurgical unit, ESU, relative to load and the RF energy, has a load responsive output sensing circuit that measures the ESU load. A signal modifier, attached to the sensing circuit enhances the signals measured and transmits them to a buffer. An analog to digital converter, A/D, digitize the signals and samples wave pulse train at about eight million samples per second. A data memory stores the digitized signals. A RF drive clock connects to the ESU output; a sample clock uses phase shifting to interrogate the input signals to a processor, DSP, at a greater sampling rate of frequency than without. The DSP receives the stored signals from the data memory and processes them while monitoring and calculating ESU parameters measured, i.e. voltage, current, power, load impedance, leakage current, peak to peak voltage, peak to peak current, spectral content and/or crest factor of the RF wave pulse train energy to use as controlling feedback to the either a high voltage power supply in the ESU, regulating the RF drive pulses or both. A method monitors and controls the ESU relative to load has the steps of collecting parameters with the ESU output sensing circuit responsive to loads; enhancing signals with the signal modifier; transmitting signals to the buffer; converting signals with the A/D converter; storing signals in the data memory; receiving signals in the DSP, and processing, monitoring and controlling signals by repeatedly measuring ESU output parameters.