A blow molding apparatus for expanding a polymer tube and a method for fabricating a stent using the apparatus is disclosed. The polymer tube is disposed within a tubular mold, over which a heated ring is made of a material having thermal conductivity greater than the tubular mold is translated. The...http://www.google.ca/patents/US20090001633?utm_source=gb-gplus-sharePatent US20090001633 - Method Of Manufacturing A Stent From A Polymer Tube