Pulmonary vein isolation balloon catheter

[0023]The instant disclosure relates to electrophysiology catheters for tissue ablation within the heart, other organs, and / or tissue within the body. In particular, the instant disclosure relates to an electrophysiology ablation balloon catheter with a combination of coated and uncoated regions for focusing ablative energy at target tissue. In some cardiac-related applications for treating atrial fibrillation, for example, pulmonary venous tissue is ablated to alleviate symptoms and / or cure the condition entirely. Various embodiments of the present disclosure are described below with specific reference to the figures. These embodiments are directed toward atrial fibrillation treatment, but may be readily applied to various other conditions and organs within a human body or animals.

[0024]Ablation therapies may be delivered by making a number of individual ablations in a controlled fashion in order to form a lesion line. Such lesion lines are often formed around / between the pulmon