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. A system for electrosurgically sealing tissue, comprising:
a surgical instrument adapted to position a first electrode and a second electrode about tissue forming a gap therebetween; and an electrosurgical generator electrically coupled to the first and second electrodes of the surgical instrument and adapted supply RF energy to the first and second electrodes, wherein the electrosurgical generator supplies a first pulse of RF energy to the first and second electrodes forming a first electrical potential therebetween and at least one subsequent pulse of RF energy to the first and second electrodes forming at least one subsequent electrical potential therebetween, wherein the electrosurgical generator is configured to regulate the at least one subsequent pulse of RF energy to decrease the subsequent electrical potential as the gap between the first and second electrodes is decreased.