Patent ID: 9121774
Filing Date: 2015-09-01
Classification: A61B,G01J,G01K,H01R

Abstract:
1. A microwave ablation system comprising: a microwave applicator including an antenna configured to deliver microwave energy to ablate tissue; a microwave generator coupled to the microwave applicator via a transmission network and configured to generate a microwave signal and transmit the microwave signal to the antenna; a radiometer configured to measure noise temperature from a signal propagating through the transmission network; a controller configured to turn off the microwave signal generated by the microwave generator for a predetermined period and to control the radiometer to measure noise temperature during the predetermined period; a first thermocouple configured to measure a first temperature; and a second thermocouple configured to measure a second temperature, wherein the controller identifies the noise temperature measured by the radiometer as a noise temperature of tissue based on the first temperature and the second temperature.