An improved stent design and stent delivery catheter assembly for repairing a main vessel and a side branch vessel forming a bifurcation. The stent includes rings aligned along a common longitudinal axis and connected by links, where the stent has one or more portals for aligning with and partially expanding...http://www.google.se/patents/US7959667?utm_source=gb-gplus-sharePatent US7959667 - Catheter assembly and method for treating bifurcations
