Patent ID: 8221486
Filing Date: 2012-07-17
Classification: A61F

Abstract:
1. A method of making a stent-graft comprising: providing a radially distensible, tubular stent having opposed first and second open ends, the stent comprising an undulating wire helically wound into a plurality of circumferential windings to define a stent wall structure having opposed exterior and luminal surfaces; providing a first non-textile, polymeric graft tube; providing a second non-textile, polymeric graft tube; laminating said radially distensible, tubular stent between said first non-textile, polymeric graft tube and said second non-textile, polymeric graft tube; trimming said laminated polymeric graft tube beyond said undulating wire at said first and second open ends of said tubular stent; providing a third non-textile, polymeric graft layer; cutting said third non-textile, polymeric graft layer to form a single longitudinal slit extending the entire length of said third non-textile polymeric graft layer; placing said third non-textile, polymeric graft layer over said trimmed ends; folding said third non-textile, polymeric graft layer over said undulating wire at said first and second open ends of said tubular stent; and laminating said third non-textile polymeric graft layer to said first non-textile, polymeric graft tube and said second non-textile, polymeric graft tube.