Patent ID: 7044961
Filing Date: 2006-05-16
Classification: A61F,Y10S

Abstract:
1. An implantable stent-graft device comprising: a first elongate tubular graft structure; a second elongate tubular graft structure disposed concentrically over and secured to said first tubular graft structure; and a plurality of radially expandable ring stent members disposed at spaced apart locations between said first and second tubular graft structures, each said stent member including a first end and an opposed second end adjacent and overlapping said first end, said first end including a plurality of ratchet teeth and said second end including a pawl for engagement with said teeth of said first end for adjustable interlocking engagement therewith said stent members being secured between said first and second tubular graft structures so as to permit radial expansion of said device and said stent members being relatively longitudinally immobilized by said securement of said first tubular graft structure to said second tubular graft structure.