Patent ID: 7799023

Claim:
A PFO closure device, comprising: a left electrode comprising a plurality of conductive wires formed of a shape memory material, wherein: the wires having a trained portion, the trained portion having a relaxed orientation; the trained portion of the wires are configured to be restrained within a left anchor delivery shaft in a straight orientation for delivery into a patient, but thereafter can return to the relaxed orientation after free ends of the wires extend from the delivery shaft; and upon being deployed into a left atrium of a patient and thereby becoming unrestrained from the delivery shaft, the wires assume their relaxed orientation wherein each wire engages at least one adjacent wire such that the wires are interconnected, and wherein the relaxed orientation is such that the wires extend outward away from a central axis of the delivery shaft, curve back around toward the central axis of the delivery shaft and then cross over and extend beyond the central axis of the delivery shaft; a left electrode delivery tube in electrical communication on an inner surface with the delivery shaft; and a right electrode catheter encompassing the left electrode delivery tube, the right electrode catheter being in communication with a right electrode such that current can be applied across tissue separating the left electrode and the right electrode, thereby damaging the tissue and generating tissue regrowth.