Patent ID: 8029558
Filing Date: 2011-10-04
Classification: A61F

Abstract:
1. A stent for treating a bifurcated vessel having a main vessel and a side branch vessel, comprising: cylindrical body having a proximal end, a distal end, and a plurality of rings; each ring having a delivered diameter, an implanted diameter and a plurality of peaks and a plurality of valleys, the peaks and the valleys being connected by bar arms; each ring being attached to an adjacent ring by more than one undulating link; a portal section comprised of one or more rings of the plurality of rings; and at least some of the bar arms connecting the peaks and the valleys of the one or more rings in the portal section have a length that is relatively longer than the bar arms connecting the peaks and the valleys of rings in a distal section of the stent, wherein at least a portion of a ring of said portal section is nested within a ring in said distal section of the stent such that spaces between adjacent said relatively longer bar arms of said ring of said portal section are circumferentially aligned with spaces between adjacent bar arms of said ring of said distal section so that upon stent expansion the portal section will extend into the side branch vessel.