Patent ID: 8419787

Claim:
An intraluminal device implantable in the vicinity of a blood vessel bifurcation, the bifurcation having a source blood vessel, a first branch vessel,and a second branch vessel, an aneurysm being located proximate to the bifurcation, the device comprising: a mesh tubular body having an expanded condition in which the tube diameter is larger than the diameter of the blood vessel in which it is to be implanted, a contracted condition wherein it is sufficiently flexible so as to be easily manipulatable through a blood vessel to be placed proximate to the bifurcation, and a length sufficient to be anchored to both the source blood vessel and the first branch vessel thereby straddling the opening of the second branch vessel, said mesh tubular body also having a length such that, when placed and anchored to straddle the opening of the second branch vessel, it also straddles said aneurysm, and said mesh tubular body having a porosity index of 60-75% when deployed within an appropriately sized blood vessel, so as to skew the flow of blood away from the aneurysm sufficiently to decrease the possibility of rupture of said aneurysm but not to unduly reduce the blood flow to said second branch vessel to a degree likely to cause significant damage to tissues supplied with blood by such second branch vessel.