Patent ID: 7549983
Filing Date: 2009-06-23
Classification: A61B,A61F,Y10S

Abstract:
1. A method of securing a membrane over an ostium of a left atrial appendage in a patient to prevent thrombus from leaving the left atrial appendage, comprising: providing a membrane configured to extend over the ostium of the left atrial appendage, the membrane having an outer periphery with a dimension larger than a corresponding dimension of the ostium; positioning the membrane over the ostium such that the outer periphery is in direct contact with an atrial wall surrounding the ostium; and securing the outer periphery of the membrane in direct engagement with the atrial wall surrounding the ostium by piercing the membrane and the atrial wall with the engagement members; each engagement member having an elongated tubular shank portion, and each engagement members having a barbed portion configured to engage tissue by piercing tissue; wherein securing the outer periphery of the membrane to the atrial wall surrounding the ostium comprises engaging the interior wall of the atrial appendage with the barbed portion.