Reflective power monitoring for microwave applications

摘要

A system and method for supplying microwave energy to tissue for microwave therapy includes an electrosurgical generator having an output for coupling to a surgical instrument. The electrosurgical generator includes a microwave energy source and a controller for controlling the operation of the electrosurgical generator. The surgical instrument, coupled to the electrosurgical generator, includes a microwave antenna for delivering microwave energy from the microwave energy source. The controller of the electrosurgical generator is operable for causing the electrosurgical generator to apply at least two pulses of microwave energy.

主权项

1. A method for applying microwave energy to a target tissue of a body, comprising the steps of:
positioning a microwave energy delivery device into and adjacent a portion of target tissue; delivering at least two pulses of microwave energy to the target tissue; measuring a temperature of a portion of a transmission line external to the body, the transmission line configured to transmit the at least two pulses of microwave energy to the microwave energy delivery device; measuring a temperature of the microwave energy delivery device; and varying at least one parameter related to the step of delivering the at least two pulses of microwave energy to the target tissue in accordance with at least one of the measured transmission line temperature and the measured microwave energy delivery device temperature.