Patent ID: 8002817
Filing Date: 2011-08-23
Classification: A61F,B29C,B29L,Y10T

Abstract:
1. An endoprosthesis comprising: linear ring struts, link struts, and curved hinge elements, the ring struts connected to each other by the hinge elements, the ring struts and the hinge elements defining a plurality of rings, the rings connected to each other by the link struts, the hinge elements adapted to allow the rings to move from a non-deformed configuration to a deformed configuration, the non-deformed configuration corresponding to the state of the rings before crimping, the deformed configuration corresponding to the state of the rings after crimping, wherein the ring struts, hinge elements, and link struts define a plurality of W-shaped closed cells, each W-shaped cell touching six other W-shaped cells, each W-shaped cell having a perimeter that includes eight of the ring struts, two of the link struts, and ten of the hinge elements, and wherein when the rings are in the non-deformed configuration, the ring struts are oriented relative to each other at an interior angle greater than 100 degrees.