Patent ID: 9707037
Date: 2017-07-18
CPC Classifications: A61B

Claim:
1. A surgical cutting apparatus comprising: a microwave radiation source arranged to generate a microwave radiation signal; a surgical instrument having: a reflected radiation detector arranged to receive a reflected signal reflected back from the antenna, wherein the microwave feed structure comprises: wherein the antenna is selectively connectable to the microwave radiation source via either the first channel or the second channel, wherein the antenna is connected to the reflected radiation detector via a signal transfer unit which is arranged to receive the reflected signal along the first channel if the antenna is connected to the microwave radiation source via the first channel or along the second channel if the antenna is connected to the microwave radiation source via the second channel, wherein the signal transfer unit is arranged to route the reflected signal received along the second channel directly to the reflected radiation detector, and wherein the first channel includes an amplifier connected between the microwave radiation source and the antenna to amplify the microwave radiation signal generated by the microwave radiation source to the first power level, and wherein the second channel bypasses the amplifier.