A bifurcated catheter assembly is provided for treating bifurcated vessels. The bifurcated catheter assembly comprises an elongate main catheter shaft having a stiffer proximal portion, a more flexible distal portion, and a pair of branch catheters attached to the distal portion. An expandable member...http://www.google.es/patents/US6475208?utm_source=gb-gplus-sharePatente US6475208 - Bifurcated catheter assembly
