The present invention relates to a medical device and method of forming the medical device. In particular, the present invention relates to a medical device having a tubular membrane structure over a radially expandable structural frame, and to a method of forming the tubular membrane on the radially...http://www.google.co.uk/patents/US20030209835?utm_source=gb-gplus-sharePatent US20030209835 - Method of forming a tubular membrane on a structural frame
