Patent ID: 9132000
Filing Date: 2015-09-15
Classification: A61B,A61F

Abstract:
1. A method of filtering the flow of blood between an atrium and a left atrial appendage of a patient comprising: providing a braided or woven mesh filtering membrane having a proximal portion, distal portion, and a permeable structure which allows blood to flow through the a braided or woven mesh filtering membrane but substantially inhibits thrombus from passing therethrough, and a support structure comprising plurality of engagement members attached to the distal portion of the braided or woven mesh filtering membrane configured to permanently engage a portion of an interior wall of the left atrial appendage, wherein the braided or woven mesh filtering membrane is fabricated from a material having shape memory characteristics, such as Nitinol or an elastic polymeric material, and further wherein the support structure comprising a plurality of engagement members extends distally from a support ring; positioning the filtering membrane across the ostium by permanently engaging the portion of the interior wall of the left atrial appendage with the support structure comprising a plurality of engagement members; and filtering blood flow through the ostium with the filtering membrane such that blood may flow through the filtering membrane while thrombus is substantially inhibited from passing therethrough.