Patent ID: 8361062
Filing Date: 2013-01-29
Classification: A61B,H01Q

Abstract:
1. A microwave antenna assembly comprising: a feedline including an inner conductor, an outer conductor and an inner insulator disposed therebetween; a radiating portion including a dipole antenna coupled to the feedline and a trocar coupled to the dipole antenna at a distal end thereof; an inner fluid feed disposed around the outer conductor in electro-mechanical contact therewith, the inner fluid feed member having a plurality of fluid lumens defined therein configured to supply a fluid to the radiating portion; an outer fluid feed member disposed around the inner fluid feed member in electro-mechanical contact therewith, the outer fluid feed member having a plurality of fluid lumens defined therein configured to withdraw the fluid from the radiating portion; a slidable outer jacket disposed about the radiating portion and the feedline, the slidable outer jacket configured to slide about at least one of the radiating portion and the feedline from a closed configuration, in which the slidable outer jacket is mated with the trocar, and a retracted configuration, in which the slidable outer jacket is retracted proximally to expose at least a portion of the radiating portion; and a contact assembly disposed around the feedline and in electrical contact with the outer conductor, the contact assembly adapted to provide continuous electrical contact between the outer conductor and the slidable outer jacket.