HANCOCK, CHRISTOPHER PAUL,WHITE, MALCOLM,DHARMISIRI, NUWAN
申请号：
CA2932652
公开号：
CA2932652A1
申请日:
2014.12.04
申请国别(地区):
CA
年份:
2015
代理人:
摘要：
An isolating circuit for electrosurgical generator arranged to produce radiofrequency (RF) energy and microwave energy for treating biological tissue. The generator has an RF channel and a microwave channel which are combined at signal combiner to enable the RF energy and microwave energy to be delivered into tissue along a common feed path. The isolating circuit comprises a tunable waveguide isolator at a junction between the microwave channel and signal combiner, and can include a capacitive structure between a ground conductor of the signal combiner and a conductive input section of the waveguide isolator to inhibit coupling of the RF energy and leakage of the microwave energy. The isolating circuit can combine into a single tunable unit all the necessary components to isolate the microwave and RF channels from one another whilst providing a high withstanding voltage.
