ABLATION DEVICE WITH ADJUSTABLE ABLATION APPLICATOR SIZE, ABLATION SYSTEM, AND METHOD OF OPERATING AN ABLATION DEVICE

摘要

An ablation device comprising(a) an ablation applicator for applying ablation energy to an ablation region, the ablation applicator having a first applicator end portion, a second applicator end portion, and an elongate portion extending between the first and second applicator end portions,(b) a first catheter having a first distal end portion and a first proximate end portion, the first distal end portion being coupled to the first applicator end portion, and(c) a second catheter having a second distal end portion and a second proximate end portion, the second distal end portion being coupled to the second applicator end portion to supply an ablation medium to the ablation applicator. The ablation applicator is adapted to form an applicator shape having an applicator size in a plane perpendicular to a longitudinal axis of the first catheter, and the coupling between the first distal end portion and the first applicator end portion is adapted to transfer a rotational force applied to the first proximate end portion to the ablation applicator and thereby cause the applicator size to change.Furthermore, an ablation system is described.