Patent ID: 7575591
Filing Date: 2009-08-18
Classification: A61F

Abstract:
1. An implantable medical prosthesis for maintaining lumen patency comprising a substantially cylindrical hollow body having a distal end and a proximal end and defining a longitudinal axis therebetween, the body being formed from a self-supporting non-metallic graft material and at least a portion of the graft material having a profile comprising a geometric pattern including plurality of pleats, disposed in a Z pattern in at least one of a radial and longitudinal direction, configured to provide radial support in a tubular organ, the plurality of pleats being configured to come together as a series of regular folds, a distal anchor having a substantially diamond shaped lattice structure formed from a self-expanding metallic material and a proximal anchor having a substantially diamond shaped lattice structure formed from a self-expanding metallic material, the distal and proximal anchors being affixed via sutures to the ends of the hollow body and having minimal overlap with the hollow body.