Patent ID: 8313522
Filing Date: 2012-11-20
Classification: A61F,B21F

Abstract:
1. A self-expandable shape memory alloy stent comprising: a first wire made of a super-elastic shape memory alloy, the first wire extending downwardly from a first top starting point to a first primary transition point disposed at an uppermost position of the stent, diagonally downwardly extending from the first primary transition point to a second primary transition point by a first diagonal length a second wire made of a super-elastic shape memory alloy, the second wire extending downwardly from a second top starting point to a first secondary transition point disposed at an uppermost position of the stent, diagonally downwardly extending from the first secondary transition point to a second secondary transition point by a first diagonal length wherein the second wire is arranged to intersect the first wire at a multiplicity of intersection points and wherein the first wire and the second wire are woven with each other in such a manner that the second wire passes alternately below and above the first wire at the intersection points, and wherein the lowermost, middle, and uppermost zigzag parts of each of the first and the second wire are joined to one another by primary and secondary connecting wire parts each extending the first diagonal length between the adjoining zigzag parts in a diagonally upwardly direction.