1
David G Wuchinich: Endoscopic electrosurgical apparatus. Valleylab, Pennie & Edmonds, August 2, 1994: US05334183 (814 worldwide citation)

This invention relates to a surgical apparatus having four general embodiments: (1) the use of an ultrasonic vibrator and a radio frequency generator to simultaneously cut and cauterize tissue, (2) the use of an ultrasonic vibrator to cut tissue coupled with the independent use of a radio frequency ...


2
Nigel Mark Goble, Colin Charles Owen Goble: Electrosurgical apparatus. Gyrus Medical, Peter C Richardson, Lawrence C Akers, Aaron Passman, July 15, 1997: US05647869 (702 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
Louis Delahuerga, Robert B Stoddard, Michael S Klicek: Enhanced electrosurgical apparatus. Valleylab, Peter C Richardson, Lawrence C Akers, Mark Dryer, June 8, 1993: US05217457 (694 worldwide citation)

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 ...


4
Goble Nigel Mark, Goble Colin Charles Owen: Electrosurgical apparatus. Gyrus Medical, January 31, 1996: EP0694290-A2 (665 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 ...


5
George C Rosar, Ken W Bachofer, James L Pokorney, James E Graf: Electrosurgical apparatus. St Jude Medical, Leydig Voit & Mayer, April 5, 1994: US05300068 (624 worldwide citation)

An electrosurgical apparatus for cutting tissue and for ablating occlusions includes a pulse generator for selectively generating a train of pulses of electrical energy for application to a wire having an attached electrode, the generator having a variable output impedance, the wire and the electrod ...


6
Nigel M Goble, Colin C O Goble: Electrosurgical apparatus. Gyrus Medical, Fish & Richardson P C, November 5, 1996: US05571100 (614 worldwide citation)

An electrode assembly for an electrosurgical instrument has an elongate tubular shaft with electrodes mounted on a distal end and, on a proximal end of the shaft, means for detachably mounting the assembly in a handpiece of the instrument. Electrical conductors pass through the shaft from the electr ...


7
Louis Delahuerga, Robert B Stoddard, Michael S Klicek: Electrosurgical apparatus. Valleylab, Peter C Richardson, Lawrence C Akers, Mark Dryer, September 14, 1993: US05244462 (569 worldwide citation)

Electrosurgical apparatus for performing at least cutting and coagulation of biological tissue, which comprises a hand operated electrosurgical pencil comprising an electrically insulated housing and an electrode with a distal end defining a tip, means for supplying high-frequency, alternating curre ...


8
Goble Nigel Mark, Goble Colin Charles Owen: Electrosurgical apparatus for laporoscopy and similar interventions.. Gyrus Medical, May 3, 1995: EP0650701-A1 (553 worldwide citation)

An electrode assembly (12) for an electrosurgical instrument has an elongate tubular shaft (12S) with electrodes (12E) mounted on a distal end and, on a proximal end of the shaft, means (12M) for detachably mounting the assembly in a handpiece (10) of the instrument. Electrical conductors (20) pass ...


9
Jack C Cordis, Dennis J Denen, Philip E Eggers, John J Knittle, Raymond C Ramsey, Robert F Shaw: Electrosurgical apparatus employing constant voltage and methods of use. Hemostatic Surgery Corporation, Nicola A Pisano, Fish & Neave, December 5, 1995: US05472443 (545 worldwide citation)

Methods and apparatus are provided for use in performing electrosurgery, wherein a power supply supplies an electrosurgical instrument with a low voltage power signal having a substantially constant peak-to-peak voltage that is independent of the load impedance and which has a crest factor near unit ...


10
Goble Nigel Mark, Goble Colin Charles Owen: Electrosurgical apparatus. Gyrus Medical, September 13, 2000: EP1034746-A2 (527 worldwide citation)

In electrosurgical apparatus for tissue desiccation and cuffing, 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 o ...



Click the thumbnails below to visualize the patent trend.