Patent ID: 8070793
Filing Date: 2011-12-06
Classification: A61F

Abstract:
1. A stent for a vessel comprising: a tubular body including a plurality of stent constituting members each formed by a single piece of yarn, wherein each of the plurality of stent constituting members comprises a tubular-body forming element formed by combining a plurality of tubular-body forming sub-elements each corresponding to a single stage via connecting parts, said tubular-body forming element being formed by bending the single piece of yarn in a zigzag design, wherein for each stage, said tubular-body forming sub-elements of different stent-constituting members are combined together such that they face each other and are abutted together in parallel to form a tubular segment corresponding to said stage, said tubular segment being constituted by continuously joining at least neighboring sides of each tubular-body forming sub-element together at a join spot, wherein said tubular body is formed by combining tubular segments in multistage form, wherein said yarn is formed of one or more biodegradable polymers selected from the group consisting of: polylactic acid (PLLA), polyglycolic acid (PGA), a copolymer of polyglycolic acid and polylactic acid, polydioxanone, a copolymer of trimethylene carbonate and glycolid, and a copolymer of polyglycolic acid or polylactic acid and s-caprolactone, wherein said tubular body is contracted or expanded in diameter with bends which simply touch each other without overlapping of said yarn bent in a zigzag design as displacing portions, and wherein said join spot includes an adhesive or a partially dissolved portion of said yarn.