Patent ID: 8974450
Filing Date: 2015-03-10
Classification: A61B

Abstract:
1. A microwave ablation system, comprising: an antenna assembly configured to deliver microwave energy from a power source to tissue; and a pair of electrodes disposed on the antenna assembly and circumferentially spaced relative to each other in an interlocking configuration to define at least one longitudinal space therebetween, the pair of electrodes configured to be positioned relative to tissue upon insertion of the antenna assembly into tissue, at least one of the electrodes configured to generate a feedback signal in response to an electrical signal supplied thereto from the power source, the feedback signal corresponding to the proximity of tissue relative to the at least one longitudinal space and configured to be compared to at least one predetermined parameter to determine a depth of the insertion of the antenna assembly into tissue, wherein the power source is configured to control the delivery of microwave energy to the antenna assembly based on the comparison.