Patent ID: 7935108
Filing Date: 2011-05-03
Classification: A61B,A61L,A61N

Abstract:
1. A cardiac ablation instrument assembly comprising: a deflectable first catheter adapted for disposition within a heart having at least one lumen therein extending from a proximal end to a distal end, the catheter having a deflectable end section formed of a plurality of polymeric segments, at least one polymeric segment having a different stiffness as compared to another polymeric segment of the deflectable end section thereby allowing the deflectable end section to form a compound curve upon deployment and deflection within the heart; an elongate second catheter for disposition within a heart; an expandable balloon member having a wall coupled to the elongate second catheter and sized for positioning proximate to a pulmonary vein; an ablation element within the balloon member for creating at least one lesion proximate the pulmonary vein by conveying energy through the balloon wall; and wherein the lumen is sized and configured to allow passage of the elongate second catheter, the balloon member, and the ablation element contained within the balloon member.