A stent-graft deployment system (10) includes a stent-graft (15), a flexible catheter tip (12) attached to a catheter shaft (25), a retractable primary sheath (20) containing the stent-graft in a first constrained small diameter configuration around the catheter shaft near the flexible tip. The stent-graft...http://www.google.es/patents/US7717950?utm_source=gb-gplus-sharePatente US7717950 - Double sheath deployment system