Patent ID: 8777939
Filing Date: 2014-07-15
Classification: A61B,C08L

Abstract:
1. An ablation probe, comprising: an inner conductor; a dielectric coaxially-disposed around the inner conductor; an outer conductor coaxially-disposed around the dielectric, wherein the dielectric and the inner conductor extend distally from the outer conductor; and a helical antenna element coaxially-disposed about the distal extension of the dielectric and coupled at a distal end thereof to the inner conductor, wherein the helical antenna element is operable to change from a first configuration at a first temperature, wherein a first gap distance is defined between a distal end of the outer conductor and a proximal end of the helical antenna element, to a second configuration at a second temperature, wherein a second gap distance different from the first gap distance is defined between the distal end of the outer conductor and the proximal end of the helical antenna element.