A stent which is adapted for placement in the vessels of a human body is provided. The stent may be in the form of a thin-walled metal cylinder having a longitudinal axis. The stent has a proximal end and a distal end and includes a number of circumferentially relatively rigid portions. The relatively...http://www.google.com.au/patents/US20020052646?utm_source=gb-gplus-sharePatent US20020052646 - Stent having a multiplicity of undulating longitudinals