An expandable medical device includes a plurality of cylindrical tubes each formed of a plurality of adjacent struts interconnected at alternating ends. The plurality of cylindrical tubes are expandable from a first diameter to a second diameter at which the adjacent struts form substantially V-shapes....http://www.google.com.au/patents/US7896912?utm_source=gb-gplus-sharePatent US7896912 - Expandable medical device with S-shaped bridging elements
