Patent ID: 9220433
Filing Date: 2015-12-29
Classification: A61B

Abstract:
1. A catheter comprising: an elongated body having a longitudinal axis; a distal assembly distal the elongated body, the distal assembly having a shape-memory support member, a helical form and a transverse section, the transverse section connecting the helical form to the elongated body and being generally transverse to the longitudinal axis of the elongated body; at least one irrigated ablation ring electrode mounted on the helical form; a control handle proximal the elongated body; wherein the helical form has an off-edge configuration such that the longitudinal axis of the elongated body does not intersect a circumference of the helical form, and an off-axis configuration such that a longitudinal axis of the helical form is axially offset from the longitudinal axis of the elongated body, and wherein the generally transverse section of the distal assembly lies on a nondiametrical chord of the helical form.