A stent delivery system comprising a catheter including a stent mounting region. A stent disposed about the stent mounting region of the catheter, the stent having a distal end and a proximal end, the stent further having an unexpanded state and an expanded state. At least one stent retaining sleeve...http://www.google.co.uk/patents/US6805702?utm_source=gb-gplus-sharePatent US6805702 - Hybrid sleeve material and structure