Vessel sealing system

摘要

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.

主权项

1. An electrosurgical generator, comprising:
an RF energy source configured to provide RF energy; an output configured to couple the RF energy source to opposing first and second electrodes of a surgical instrument and provide the RF energy thereto, the opposing first and second electrodes when positioned about tissue forming a gap therebetween; and a controller configured to regulate the RF energy from the RF energy source, the controller configured to decrease the output of the RF energy as the gap between the first electrode and second electrode is decreased.