The expandable stent-graft generally defines a cylindrical lumen made from a stent having a discontinuous wall that is at least substantially covered with an expended polytetrafluoroethylene material. The expanded polytetrafluoroethylene covering may be a biaxially oriented, expanded polytetrafluoroethylene...http://www.google.es/patents/USRE40122?utm_source=gb-gplus-sharePatente USRE40122 - Expandable stent-graft covered with expanded polytetrafluoroethylene
Expandable stent-graft covered with expanded polytetrafluoroethylene
