A stent-graft having an exo-skeleton attached to a tubular graft, the tubular graft having a peripheral wall defining a lumen therein extending between first and second ends. The exo-skeleton may assume contracted and enlarged conditions, and includes one or more serpentine elements, each extending both...http://www.google.de/patents/US6325820?utm_source=gb-gplus-sharePatent US6325820 - Coiled-sheet stent-graft with exo-skeleton