Inventors:
Robert H. Wham - Boulder CO, US
Rebecca Coulson - Lyons CO, US
Kari Leidich - Golden CO, US
David A. Schechter - Montara CA, US
Chelsea Shields - Portland OR, US
Thomas A. Sturm - Erie CO, US
Craig Weinberg - Denver CO, US
Assignee:
Covidien AG - Neuhausen am Rheinfall
International Classification:
A61B 18/18
US Classification:
606 34, 606 51, 606 52, 606 32
Abstract:
An electrosurgical system is disclosed. The electrosurgical system includes an electrosurgical generator adapted to supply electrosurgical energy to tissue. The electrosurgical generator includes impedance sensing circuitry which measures impedance of tissue, a microprocessor configured to determine whether a tissue reaction has occurred as a function of a minimum impedance value and a predetermined rise in impedance, wherein tissue reaction corresponds to a boiling point of tissue fluid, and an electrosurgical instrument including at least one active electrode adapted to apply electrosurgical energy to tissue.