a bifurcated stent for insertion into a bifurcated vessel such as a blood vessel . in one embodiment , a first sheet is formed into a first leg , a second sheet is formed into a second leg , a third sheet is formed into a stem , and the two legs are attached to the stem . in a second embodiment , a first sheet is formed into a member having a first leg and half of a stem , a second sheet is formed into a second member having a second leg and half of a stem , and the two stem halves are combined to form the bifurcated stent . in a third embodiment , the stent comprises two sections that are serially inserted and assembled within the vessel at the site of the bifurcation to be treated .