Yuval CARMEL,Anatoly SHKVARUNETS,Robert A. VAN WYK
申请号：
US14595505
公开号：
US20150196350A1
申请日:
2015.01.13
申请国别(地区):
US
年份:
2015
代理人:
摘要：
Conventional electrosurgical devices used in a conductive fluid environment have one or more electrodes at the active electrode potential, and one or more return electrodes at the return potential. The shape of the electric field and the current density for a given power setting are determined primarily by the configuration, size and relative locations of the active and return electrodes and of dielectric elements surrounding and separating the electrodes. Two potentials are supplied to the site by the electrosurgical power supply. Disclosed herein are mechanisms and methods for enhancing the effectiveness of an electrosurgical device in a conductive fluid environment that utilize an additional electrode (i.e., an auxiliary electrode) that designates a third potential between that of the active and return electrodes.
