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A microwave antenna assembly is disclosed. The antenna assembly includes a feedline having an inner conductor, an outer conductor and an inner insulator disposed therebetween and a radiating portion including a dipole antenna coupled to the feedline and a trocar coupled to the dipole antenna at a di

A microwave antenna assembly is disclosed. The antenna assembly includes a feedline having an inner conductor, an outer conductor and an inner insulator disposed therebetween and a radiating portion including a dipole antenna coupled to the feedline and a trocar coupled to the dipole antenna at a distal end thereof. The antenna assembly also includes a slidable outer jacket disposed about the radiating portion and the feedline. The slidable outer jacket being 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 in a proximally exposing at least a portion the radiating portion.

대표청구항 ▼

What is claimed is: 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 th

What is claimed is: 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;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; anda 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, the contact assembly further comprising:a tubular housing having at least two stop members each of which is disposed at a proximal distal end thereof, respectively; anda spring member disposed about the tubular housing between the at least two stop members, the spring member adapted to bias the slidable outer jacket.