SYSTEMS AND METHODS FOR REDUCTION OF ATRIAL FIBRILLATION

摘要

Embodiments of the present invention are directed to ablation catheter systems configured, for example, to ablate tissue adjacent an ostium of the pulmonary vein in a left atria of a heart. In one embodiment, an ablation catheter system includes a handle and a catheter coupled to the handle defining a lumen extending through a length of the catheter, the catheter including a distal end thereof. The ablation catheter system may also include an electrode coupled to the handle with lines extending through the lumen of the catheter, the electrode being configured to be constrained adjacent the distal end of the catheter and configured to be deployed from the distal end of the catheter to an expanded configuration.

主权项

1. An ablation system, comprising:
a delivery device; an ablation energy source operatively coupled to the delivery device; and an ablation member extending with multiple struts to define a multi-cellular structure, the ablation member configured to be coupled to the ablation energy source and configured to be disposed adjacent a distal end of the delivery device, the ablation member configured to receive ablation energy for treating tissue, each cell of the multi-cellular structure including at least one common strut of an adjacent cell, the ablation member configured to move between a constricted narrow configuration and an expanded configuration.