Patent ID: 7175657

Claim:
An endoprosthesis comprising: a trunk section configured to anchor and seal the endoprosthesis within a vessel, the trunk section further comprising a substantially tubular stent structure having a first and a second end, said stent having a single row of diamond elements at the first end, multiple rows of diamond elements towards the second end, a substantially zigzag element between the single row of diamond elements at the first end and the uppermost row of the multiple rows of diamond elements, and a plurality of longitudinal struts connecting the single row of diamond elements to the uppermost row of the multiple row of diamond elements; and a bifurcated section of two legs connected to the trunk section, wherein the two legs are supported by metallic stent components, the stent components include a plurality of individual substantially tubular stent elements, each of the tubular stent elements comprises a substantially zigzag element, each of the two legs is comprised of a different number of the substantially tubular stent elements such that the stent elements in one of the two legs do not line up with the stent elements in the other of the two legs, the two legs being connected to one another via sutures and wherein graft material is attached to at least a portion of the trunk and all of the two legs, the sutures connect the graft material on each of the two legs together.