Patent ID: 7637939
Filing Date: 2009-12-29
Classification: A61F

Abstract:
1. A stent comprising: a first non-helical ring section comprising at least one serpentine band having peaks and troughs and struts extending therebetween; a second non-helical ring section comprising at least one serpentine band having peaks and troughs and struts extending therebetween; a third non-helical ring section comprising at least one serpentine band having peaks and troughs and struts extending therebetween; a first generally helical portion, the first generally helical portion including at least two side-by-side generally helical paths which extend in the same direction about the longitudinal axis of the stent, each of the at least two generally helical paths extending about a longitudinal axis of the stent for at least 360 degrees and having a first end, a second end, a plurality of peaks, and a plurality of troughs, the first ends of the at least two generally helical paths being directly engaged to the first non-helical ring section, the second ends of the at least two generally helical paths being directly engaged to the second non-helical ring section, the first non-helical ring section being adjacent to the second non-helical ring section; and a second generally helical portion, the second generally helical portion including at least two side-by-side generally helical paths which extend in the same direction about the longitudinal axis of the stent, each of the at least two generally helical paths extending about the longitudinal axis of the stent for at least 360 degrees and having a first end and a second end, a plurality of peaks and a plurality of troughs, the first ends of the at least two generally helical paths being directly engaged to the second non-helical ring section, the second ends of the at least two generally helical paths being directly engaged to the third non-helical ring section, the second non-helical ring section being adjacent to the third non-helical ring section.