1
Michael S Klicek: Impedance and temperature generator control. Valleylab, Peter C Richardson, Lawrence C Akers, Aaron Passman, March 5, 1996: US05496312 (1122 worldwide citation)

A control responds to impedance and temperature between active and return electrodes of the electrosurgical generator during tissue desiccation. Tissue contacts separately and independently provide high frequency power to effect tissue electrosurgically. An instantaneous impedance monitor between ea ...


2
Goble Nigel Mark, Goble Colin Charles Owen: An electrosurgical generator and system. Gyrus Medical, January 22, 1997: EP0754437-A2 (776 worldwide citation)

An electrosurgical system including an electrode assembly having two electrodes for use immersed in an electrically conductive fluid has a generator with control circuitry for rapidly reducing the delivered radio frequency output power by at least 50% within approximately 100 mu s, corresponding to ...


3
David Lee Gines: Electrosurgical generator with adaptive power control. Valleylab, March 7, 2000: US06033399 (736 worldwide citation)

An electrosurgical generator has an output power control system that causes the impedance of tissue to rise and fall in a cyclic pattern until the tissue is desiccated. The advantage of the power control system is that thermal spread and charring are reduced. In addition, the power control system of ...


4
Nigel Mark Goble, Colin Charles Owen Goble: Electrosurgical apparatus. Gyrus Medical, Peter C Richardson, Lawrence C Akers, Aaron Passman, July 15, 1997: US05647869 (720 worldwide citation)

In electrosurgical apparatus for tissue desiccation and cutting, an electrosurgical generator has a series-connected output inductor which forms a series resonant circuit with the capacitance of the generator load, the load including an electrode unit and a cable coupled to the generator output. The ...


5
Goble Colin Charles Owen: Electrosurgery system and method. Gyrus Medical, November 22, 2000: EP1053720-A1 (692 worldwide citation)

An electrosurgical generator has output terminals for connection to active and return electrodes respectively of an electrosurgical instrument and, connected to the output terminals via at least one isolation capacitor, a radio frequency (r.f.) source which may be pulsed by a pulsing circuit. To per ...


6
Goble Nigel Mark, Goble Colin Charles Owen: Electrosurgical apparatus. Gyrus Medical, January 31, 1996: EP0694290-A2 (680 worldwide citation)

In electrosurgical apparatus for tissue desiccation and cutting, an electrosurgical generator has a series-connected output inductor (L) which forms a series resonant circuit with the capacitance (CL) of the generator load, the load including an electrode unit and a cable coupled to the generator ou ...


7
Mark A Rydell: Electrosurgical instrument having needle cutting electrode and spot-coag electrode. Everest Medical Corporation, Haugen and Nikolai, April 16, 1991: US05007908 (637 worldwide citation)

An electrosurgical instrument for use in combination with an endoscope for cutting tissue and cauterizing/coagulating the resulting wound area is described. The instrument comprises an elongated flexible tubular member having a proximal end, a distal end, and plural lumens extending therebetween. Af ...


8
Colin C O Goble: Electrosurgical radiofrequency generator having regulated voltage across switching device. Gyrus Medical, Fish & Richardson, August 1, 1995: US05438302 (609 worldwide citation)

In an electrosurgical generator having a self-tuning oscillator which includes a switching device and a resonant output network connected between the switching device and a supply rail, an oscillator feedback circuit feeds to the switching device a switching control pulse signal for separately switc ...


9
Nigel Mark Goble, Colin Charles Owen Goble: Electrosurgical generator method. Gyrus Medical, Nixon & Vanderhye P C, September 25, 2001: US06293942 (598 worldwide citation)

An electrosurgical system including an electrode assembly having two electrodes for use immersed in an electrically conductive fluid has a generator with control circuitry for rapidly reducing the delivered radio frequency output power by at least 50% within at most a few cycles of the peak radio fr ...


10
Goble Colin Charles Owen, Amoah Francis, Gobel Nigel Mark: Uhf electrosurgery system. Gyrus Medical, September 13, 2000: EP1034748-A1 (558 worldwide citation)

An electrosurgery system has an electrosurgical generator operable to generate electrosurgical power at a frequency in the UHF band (typically 2.45 GHz), a feed structure, and an electrode assembly for delivering the electrosurgical power to tissue to be cut. The electrode assembly has an elongate a ...