Prosthesis comprising dual tapered stent

A prosthesis for repairing an aneurysm comprising:

• a stent having a first end and a second end with an intermediate section disposed therebetween, the first and second ends having the same first pattern and the intermediate section having a second pattern different than the first pattern, the first and second ends including means for sealing the respective ends to a structure, the intermediate section having a diameter that is smaller than a diameter of the first or second end, the first and second ends being configured as fully closed diamond shaped elements for increased strength which taper from a first diameter to a second diameter, wherein the second diameter is less than the first diameter and equal to the intermediate section and the intermediate section being configured as a plurality of zig-zag shaped struts for increased flexibility joined by bridges, the bridges being connected in an angled manner to non-adjacent apexes of the zig-zags, the first and second ends being connected to the intermediate section by struts extending from the apexes of the diamond shaped elements and wherein the connection of the bridge on one set of zig-zag shaped struts is offset both longitudinally, circumferentially and having the opposite angular orientation from the connection on an adjacent set of zig-zag shaped struts, the stent being formed from a single laser cut tube;
• continuous graft material engaging substantially all of the stent, the continuous graft material being configured to match the diameter of the stent sections;
• and radiopaque attachment members for attaching the graft material to the stent.