Patent ID: 8211161
Filing Date: 2012-07-03
Classification: A61F

Abstract:
1. An intravascular stent for use in a body lumen, comprising: a distal section, a proximal section, and a central section positioned between the distal section and the proximal section, each section being aligned along a common longitudinal axis forming the stent; the distal section and the proximal section having cylindrical rings, wherein the distal section includes all cylindrical rings distal to the central section and the proximal section includes all cylindrical rings proximal to the central section and wherein all cylindrical rings in the distal and proximal section have a first longitudinal length, and the central section consisting of a single cylindrical ring having a second longitudinal length, the first longitudinal length being shorter than the second longitudinal length; the distal section and the proximal section having a first strut pattern and a second strut pattern respectively, and the central section having a third strut pattern; and the third stent pattern having a substantially uniform repeating series of struts that form a central ring wherein each strut is directly attached to an adjacent strut to define a zig-zag pattern; wherein the first and the second strut patterns are more dense than the third strut pattern; and wherein the air to metal ratio of the third strut pattern is substantially uniform.