A stent for insertion into a blood vessel is made from a sheet having a longitudinal axis and a first portion and a second portion. The first portion has a proximal end and a distal end and a first lateral side and a second lateral side with the lateral sides of the first portion substantially parallel...http://www.google.de/patents/US6989026?utm_source=gb-gplus-sharePatent US6989026 - Method of making a bifurcated stent with improved side branch aperture
