Patent ID: 8790388
Filing Date: 2014-07-29
Classification: A61F,A61M

Abstract:
1. A stent delivery system comprising: a catheter comprising an expandable balloon, the balloon having a pleated state and an unpleated state, the balloon having at least two pleats in the pleated state, adjacent pleats of a balloon being separated by a fold in the pleated state; and a stent having a reduced state and an expanded state, the stent comprising a plurality of interconnected annular rings arranged about a longitudinal axis, each of the plurality of annular rings comprising a plurality of peaks and a plurality of troughs, wherein in the reduced state and positioned on the balloon, at least one of the plurality of peaks of at least one of the plurality of rings extends into a fold of the balloon in the pleated state the at least one peak being positioned a first distance from the longitudinal axis, another one of the plurality of peaks being positioned a second distance from the longitudinal axis, the first distance being less than the second distance, wherein in the expanded state, the plurality of peaks of the stent being positioned at substantially the same distance from the longitudinal axis, wherein the plurality of peaks are defined by a plurality of struts, wherein the at least one peak that extends into the fold comprises at least one first strut having a first thickness, wherein each of the remaining peaks of the annular band comprise at least one second strut having a second thickness, and wherein the first thickness is less than the second thickness.