Patent ID: 8092511

Claim:
A system for treating vasculature, comprising: a main component sized for placement in an aortic arch, the main component having a superior end, an inferior end and a midsection therebetween, the midsection comprising a segment having an outer diameter that is smaller than a substantially uniform outer diameter of a segment contiguous with the superior end and a substantially uniform outer diameter of a segment contiguous with the inferior end with a first narrowing transition section bridging between the midsection and the segment contiguous with the superior end proximal to tile midsection and a second narrowing transition section bridging between the midsection and the segment contiguous with the inferior end proximal to the midsection; at least two limbs sized for placement in branch vessels, each having an opening, wherein each of the at least two limbs extending extends from either- the first narrowing transition section in a different direction than an opening in the superior end distal from the midsection or each of the at least two limbs extends from the second narrowing transition sections section in a different direction than an opening in the inferior end distal from the midsection and defining respective openings; and respective extension components sized to mate with the opening of the at least two limbs.