Patent ID: 8029534

Claim:
A closure device for occluding a body opening comprising: a distal occluding body having an expandable distal umbrella frame and a proximal occluding body having an expandable proximal umbrella frame, the distal frame including a plurality of struts having first ends attached to a distal end of a center rod, the proximal frame including a center ring and a plurality of struts having first ends attached to the center ring, the center ring being slidable along the center rod, the struts of each frame being connected to a biocompatible sheet material, the center rod defining a longitudinal axis, the distal frame struts extending from the distal end of the center rod in a generally parallel, axial direction with respect to the longitudinal axis when the distal frame is in a collapsed configuration and in a generally perpendicular, radial direction with respect to the longitudinal axis when the distal frame is in an expanded configuration, the proximal frame struts extending from the center ring in a generally parallel, axial direction with respect to the longitudinal axis when the proximal frame is in a collapsed configuration and in a generally perpendicular, radial direction with respect to the longitudinal axis when the proximal frame is in an expanded configuration, each strut of the distal frame extending from the first end and terminating with an eyelet, wherein the distal and proximal frames expand to their expanded configurations on opposite sides of the body opening; and at least one drawstring threaded through the eyelets of the distal frame and through the center ring of the proximal frame to connect the distal and proximal occluding bodies to one another, the at least one drawstring extending proximally from the center ring, wherein manipulation of the center rod and the at least one drawstring extending proximally from the center ring is configured to move the distal and proximal frames from their expanded configurations toward their collapsed configurations for at least partial retrieval of the closure device.