A self-expanding stent delivery apparatus having a sheath comprising a hard and lubricious coating for the safe, effective and accurate deployment of self-expanding stents. The sheath comprises an inner layer of pyrolytic carbon or other similar substance which prevents the stent from becoming embedded....http://www.google.com/patents/US7169170?utm_source=gb-gplus-sharePatent US7169170 - Self-expanding stent delivery system
