Patent ID: 9492229
Filing Date: 2016-11-15
CPC Classification: A61B,A61N

Claim Text:
1. Tissue measurement and ablation apparatus having: a source of microwave radiation; a probe for directing the microwave radiation from the source into tissue, the probe having an antenna adapted to emit the microwave radiation from an emitting region thereof; a first channel for carrying the microwave radiation between the source and the probe in a controlled ablation mode; a second channel for carrying the microwave radiation between the source and the probe in a measurement mode; a switch for selecting the first channel or the second channel according to a required mode of operation; and a detector for detecting a magnitude and a phase of the microwave radiation when it is reflected from the tissue; wherein the first channel is operable at a first power level and includes a tuner arranged to dynamically match an impedance of the apparatus with an impedance of the tissue seen by the emitting region of the antenna, and one or more power couplers arranged to couple the reflected microwave radiation to the detector; and wherein the second channel is operable at a second power level and is arranged to directly supply the reflected microwave radiation to the detector.