07282049 is referenced by 152 patents and cites 123 patents.

A system for heat ablation of tissue in a patient comprises a plurality of electrodes operatively connected to a source of radiofrequency energy and configured to apply RF energy to tissue at a patient site, a plurality of RF current restricting circuits, each circuit coupled between one of the plurality of electrodes and the source of radiofrequency energy, and configured to restrict RF energy to the electrode when the current restricting circuit is enabled and not restrict RF energy to flow to the electrode when the current restricting circuit is disabled, at least one return electrode adapted to contact the patient and configured to return RF energy to the RF source; and a switching mechanism configured to selectively enable each of the plurality of RF current restricting circuits, in one of a sequential and non sequential fashion, wherein the switching mechanism is isolated from each of the current restricting circuits.

Title
Electrosurgical system employing multiple electrodes and method thereof
Application Number
11/242217
Publication Number
7282049 (B2)
Application Date
October 3, 2005
Publication Date
October 16, 2007
Inventor
James W McPherson
Boulder
CO, US
James H Orszulak
Nederland
CO, US
Assignee
Sherwood Services
CH
IPC
A61B 18/18
View Original Source