Patent ID: 8372142

Claim:
An endoluminal prosthesis, comprising: a) a main body including a graft and a tubular structure comprising a stent formed from struts having widths, lengths and thicknesses, defining a circumference, and having a longitudinal axis and a radial axis; and b) first and second leg portions coupled relative to said main body portions, wherein said stent includes a barb for coupling the main body portion relative to an abdominal aortic wall, said barb including an anchor portion and a shape set twisted neck, the shape set twisted neck being biased and configured to twist along its length, rotating the barb radially outward relative to the longitudinal axis of the strut, the barb being a part of and extending from an intersection of struts forming the stent, the shape set twisted neck cut from the tubular structure with a predetermined width and twisted about 90 degrees such that its width becomes its thickness, thereby increasing its strength, the stent and barb being a one-piece unitary structure, said stent and barb together defining three axes, an X-axis extending tangential to a circumference of said stent, a Y-axis extending radially outward from the circumference of said stent, and a Z-axis extending through said neck portion of said barb, and said neck portion is shape set biased to rotate about said Z-axis.