Patent ID: 7316710
Filing Date: 2008-01-08
Classification: A61F

Abstract:
1. An intravascular stent while in an unexpanded state, comprising: a distal section, a proximal section, and a center section there between; the distal section and the proximal section each having a single cylindrical ring and the center section having a plurality of cylindrical rings; the cylindrical ring of the distal section and the cylindrical rings of the center section having U-shaped undulations with peaks and valleys, wherein each peak is connected to a valley by a first segment that extends along most of the distance between such peak and valley; and the cylindrical ring in the proximal section having U-shaped undulations with peaks and valleys, wherein each peak is connected to a valley by a second segment that extends along most of the distance between such peak and valley; wherein said first segments have a shape that is different than the shape of said second segments as each of said first segments defines a substantially straight line while each of said second segments defines a series of curves.