Patent ID: 7097658
Filing Date: 2006-08-29
Classification: A61F

Abstract:
1. An automatically controlled expansion stent, comprising: a substantially tubular expansible stent body comprising a first and a second end, inner and outer wall surfaces, and a first diameter that permits intraluminal delivery; at least two radial expansion trusses for expanding said stent body, said expansion trusses composed of a plurality of hinged links which allow symmetrical expansion of the radial expansion trusses, and further including a plurality of interconnects interposed between said radial expansion trusses; actuation means for selectively expanding said stent body mechanically, wherein the expansion of said stent body does not involve a plastic deformation process or utilize shape memory material characteristics; control means for actively controlling said actuation means; wherein said hinged links comprise a combination of triangular shaped links, angulated links, and notched angulated links, each attached to an adjoining link by hinged pivot points.