Patent ID: 8323331
Filing Date: 2012-12-04
Classification: A61F,Y10T

Abstract:
1. A radially expansible stent formed from a tithe, comprising a continuous spiral of tube material with a plurality of turns wrapping about a longitudinal axis from a first end of the stent to a second end of the stent, the spiral including a plurality of struts in a zig-zag arrangement joined at points of inflection, wherein along a section between the first end of the stent and the second end of the stent: each strut includes a double bend remote from a point of inflection and first and second length portions on opposite sides of the double bend; adjacent struts have handed double bends that are substantially mirror images of one another, the handed double bends facing each other such that in a stent collapsed configuration the length portions of adjacent struts on a first side of the double bends are spaced closer than the length portions of adjacent struts on a second side of the double bends opposite the first side, the adjacent struts on said first side of the double bends being, joined at a point of inflection; in said stent collapsed configuration all said length portions lie parallel to each other and to the longitudinal axis of the stent; and each point of inflection on said first side of the double bends on one turn of the continuous spiral lying between adjacent struts on said second side of the double bends on the next turn of the continuous spiral.