1
Michael S Klicek: Impedance and temperature generator control. Valleylab, Peter C Richardson, Lawrence C Akers, Aaron Passman, March 5, 1996: US05496312 (1058 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
Nigel Mark Goble, Colin Charles Owen Goble: Electrosurgical apparatus. Gyrus Medical, Peter C Richardson, Lawrence C Akers, Aaron Passman, July 15, 1997: US05647869 (676 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 ...


3
Jeffrey L Eggleston, James H Orszulak, Matthew J Sodnicar: Control system for neurosurgery. Valleylab, Peter C Richardson, Lawrence C Akers, Aaron Passman, February 24, 1998: US05720744 (554 worldwide citation)

A control system and method for the operation of neurosurgical bipolar electrodes for application to the tissue and bodily fluids of a patient provides a source of high frequency energy connected to bipolar electrodes. Contacting surfaces are on the bipolar electrodes of highly electrically conducti ...


4
David Nichols Heard: Bipolar electrosurgical scissors and method of manufacture. Valleylab, Peter C Richardson, Lawrence C Akers, Aaron Passman, August 19, 1997: US05658281 (501 worldwide citation)

A bipolar electrosurgical scissors has an improved coagulation capability. Both poles of electrosurgical energy are exposed on the exterior surfaces of each shearing member so that the scissors can be used to coagulate tissue using only one shearing member. There may be two or more electrically cond ...


5
Michael S Klicek, William G Patterson: Electrosurgical processor and method of use. Valleylab, Peter C Richardson, Lawrence C Akers, Aaron Passman, December 6, 1994: US05370645 (443 worldwide citation)

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 ...


6
Derek Matsunaga: High frequency power measurement. Valleylab, Peter C Richardson, Lawrence C Akers, Aaron Passman, June 6, 1995: US05422567 (439 worldwide citation)

A monitoring circuit for an electrosurgical generator has active and return output conductors. Voltage, current and the inverse of current picked up inductively are provided to a adder circuits for summing the picked up voltage and current and computing the difference of the picked up voltage and th ...


7
Michael S Klicek: Moveable switchable electrosurgical handpiece. Valleylab, Peter C Richardson, Lawrence C Akers, Aaron Passman, December 5, 1995: US05472442 (421 worldwide citation)

An active electrode switches from a monopolar mode extending from a handpiece and a patient return to a bipolar mode with the active and return electrodes extending. An active lead selectively connects the active output and the active electrode. A return lead selectively connects the return electrod ...


8
Joshua Makower, Lois A Fitton, Aaron D Sodickson, William A Gorman: Laparoscopic dissection tension retractor device and method. Valleylab, Peter C Richardson, Lawrence C Akers, Aaron Passman, November 4, 1997: US05683349 (368 worldwide citation)

A minimally invasive retractor and dissector for internal surgical use on a patent's body has a tubular support for passing into the patient's body. A proximal end on the tubular support located outside the patient's body is in position to provide assess for the surgeon. A distal end on the tubular ...


9
Joshua Makower, Lois Fitton, Aaron Sodickson, Bill Gorman: Laparoscopic dissection tension retractor device and method. Valleylab, Peter C Richardson, Lawrence C Akers, Aaron Passman, December 12, 1995: US05474057 (366 worldwide citation)

A minimally invasive retractor and dissector for internal surgical use on a patient's body has a tubular support for passing into the patient's body. A proximal end on the tubular support located outside the patient's body is in position to provide access for the surgeon. A distal end on the tubular ...


10
Robert C Platt Jr, Dale F Schmaltz, Steve Buysee: Plasma enhanced bipolar electrosurgical system. Valleylab, Peter C Richardson, Lawrence C Akers, Aaron Passman, September 23, 1997: US05669907 (366 worldwide citation)

A surgical system has a multiple electrode electrosurgical capability in combination with a gas plasma capability for delivery of electrosurgical energy to the tissue or bodily fluids of a patient. The system includes a holder, a source of electrical energy, electrodes connected to the source of ele ...



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