Patent ID: 8617153
Filing Date: 2013-12-31
Classification: A61B

Abstract:
1. An ablation probe, comprising: a dielectric; an inner conductor coaxially-disposed within the dielectric and longitudinally movable with respect thereto, wherein the inner conductor extends distally from the dielectric; an outer conductor coaxially-disposed around the dielectric, wherein the dielectric extends distally from the outer conductor; a tip coupled to a distal end of the inner conductor; a biasing member configured to bias the tip distally, wherein the biasing member includes a coil spring disposed about the inner 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 to a second configuration when the inner conductor is moved longitudinally.