1
Frederick W Rexroth, F Barry Bays: Electrolyte purging electrode tip. Concept, Frijouf Rust & Pyle, July 24, 1990: US04943290 (430 worldwide citation)

An electrolyte fluid purging electrosurgical device for use with an electrode holder connected to an electrical power source and to a source of a non-electrically conductive fluid and a method of use are disclosed. The fluid purging electrosurgical device enables electrosurgery at a surgical site wh ...


2
Frederick W Rexroth, Gary R Hoss: Microprocessor controlled electrosurgical generator. Concept, Epstein & Edell, April 26, 1988: US04739759 (276 worldwide citation)

A microprocessor controlled electrosurgical generator provides plural ground-isolated and mutually isolated monopolar r-f cutting signals for respective surgical pencils to permit plural surgeons to use the same generator while maintaining independent control over output power and mode selection. A ...


3
Frederick W Rexroth, F Barry Bays: Electrosurgical method using an electrically conductive fluid. Concept, Rust & Pyle Frijouf, June 26, 1990: US04936301 (200 worldwide citation)

An electrolyte fluid purging electrosurgical device for use with an electrode holder connected to an electrical power source and to a source of a non-electrically conductive fluid and a method of use are disclosed. The fluid purging electrosurgical device enables electrosurgery at a surgical site wh ...


4
Paul J Altnether, Frederick W Rexroth: Pencil for electrosurgical generator. Medical Research Associates 1, Epstein & Edell, December 2, 1986: US04625723 (62 worldwide citation)

A pencil for electrosurgical generators includes a push button switch structure useful in selectively bridging spaced printed circuit contacts in spite of oxidized film on the contact surface. A movable concave disk has a sharp peripheral edge that is forced against the contact surface during switch ...


5
Frederick W Rexroth: Electrosurgical generator with improved rapid start capability. Medical Research Associates, Epstein & Edell, September 25, 1984: US04473075 (29 worldwide citation)

An electrosurgical generator, having particular utility in arthroscopic surgical procedures, is provided with a rapid start capability in its pure cut mode by inhibiting secondary modulation for an initial starting interval during which an uninterrupted high frequency cutting signal is applied to th ...


6
Frederick W Rexroth: Electrosurgical generator. Medical Research Associates 2, Epstein & Edell, November 5, 1985: US04550727 (4 worldwide citation)

An electrosurgical generator, having particular utility in surgical procedures on human joints, is provided with an output impedance in the range of 600 to 2,500 Ohms in order to efficiently transfer energy to the high impedance joint. The relatively high output impedance permits much lower power se ...