Patent ID: 7041126
Filing Date: 2006-05-09
Classification: A61F

Abstract:
1. A flexible self-expandable stent, comprising: hollow cylindrical inside and outside stent bodies fabricated by knitting first and second super-elastic shape memory alloy wires to make a net-like structure of each of the inside and outside stent bodies in that the first wire, which is zigzagged with a diagonal length P in a longitudinal direction of each of the inside and outside stent bodies, is interlocked with the second wire, which is zigzagged with a diagonal length a hollow rubber tube closely fitted between the inside and outside stent bodies, the hollow rubber tube having a length substantially equal to a length of each of the inside and outside stent bodies, wherein both distal and proximal ends of the rubber tube and the inside and outside stent bodies are intergrated into a single structure, wherein each the distal and proximal ends of the rubber tube and the inside and outside stent bodies is sewn with a thread by stitching to form a sewn end, and the sewn end is immersed in a polyurethane solution to form a resin-impregnated part, thus being integrated into the single structure.