A helical stent includes at least one helical winding. Each helical winding includes a plurality of alternating long struts and short struts, ends of at least some of the long struts being joined to an end of an adjacent short strut by a flexible hinge arrangement, the struts being substantially rigid....http://www.google.fr/patents/US20080097583?utm_source=gb-gplus-shareBrevet US20080097583 - Stent with flexible hinges
