Electrical conduction block implant device

摘要

The present invention provides an electrical block implant sized and shaped for securement at the perimeter of the pulmonary ostium of the left atrium. By utilizing various expandable ring designs and optional anchoring mechanisms, the present invention causes even, circular scarring around the perimeter of the pulmonary ostium, achieving reliable blocking of aberrant electrical signals responsible for atrial fibrillation.

主权项

1. A pulmonary vein implant for treating arrhythmia comprising:
a first ring having a compressed state and an expanded state sized to contact an inner diameter of a pulmonary vein; said first ring having a first cross section size; a second ring having a compressed state and an expanded state sized to contact ostial tissue associated with said pulmonary vein; said second ring having a second cross section size smaller than said first cross section size; a plurality of connecting members disposed between said first ring and said second ring; said connecting members having an expanded state urging said second ring into said ostial tissue; wherein a radial expansion force generated by said first ring is at least partially conveyed to said second ring by said connecting members for increasing a force per area of said second ring on said ostial tissue.