An expandable stent and stent graft having a small initial diameter, flexibility along its longitudinal axis prior to expansion and a large expanded and rigid Local stain on the stent material is minimized, as and after the balloon is expanded. More particularly, the stent has rotation joints having...http://www.google.com.au/patents/US20020177892?utm_source=gb-gplus-sharePatent US20020177892 - Medical stents, apparatus and method for making same
