David Ross;David Schechter;Jenifer Kennedy;Dale Schmaltz;Joel Helfer
发明人:
Jenifer Kennedy,Dale Schmaltz,David Schechter,Joel Helfer,David Ross
申请号：
US13153513
公开号：
US09144455B2
申请日:
2011.06.06
申请国别(地区):
US
年份:
2015
代理人:
摘要：
A surgical system and associated method for sealing the passageway of a fluid-carrying vessel with a diameter up to 5 millimeters comprises an electrosurgical generator capable of delivering electrosurgical power, a surgical instrument electrically connected to the electrosurgical generator and adapted to transfer electrosurgical power from the electrosurgical generator to a pair of end effectors disposed at a distal end of the surgical instrument. The system also includes a power control circuit for controlling the delivery of radio frequency energy to the vessel through the end effectors, wherein the delivery of the radio frequency energy to the vessel comprises, raising the output current to a range below 1.75 Amperes RMS and the output voltage to a range below 135 Volts RMS. Radio frequency energy is applied to the vessel for a period of time while the power is held approximately constant. The flow of radio frequency energy is terminated when the impedance of the vessel being sealed reaches a predetermined level.
