Patent ID: 9707038
Date: 2017-07-18
CPC Classifications: A61B,H01Q,Y10T

Claim:
1. A microwave antenna assembly comprising: a hub including a proximal portion and a distal portion; a sheath extending distally from the hub, the sheath defining a chamber; a feedline configured to deliver microwave energy, the feedline including an inner conductor, an outer conductor, and an inner insulator disposed between at least a portion of the inner conductor and the outer conductor, wherein at least a portion of the feedline is disposed within the chamber defined by the sheath; and a fluid flow tube disposed within the chamber defined by the sheath, the fluid flow tube configured to deliver a fluid to the chamber defined by the sheath to cool the portion of the feedline disposed within the chamber defined by the sheath and to return the fluid to the hub to cool the proximal portion of the hub.