A bifurcated or straight intravascular folded tubular member is
deliverable percutaneously or by small cutdown to the site of a
vascular lesion. Its inserted state has a smaller nondeployed
diameter and a shorter nondeployed length. The intravascular tubular member has a folded tubular section that is unfolded following
insertion into the
blood vessel. The length of the intravascular folded tubular member is sized in situ to the length of the vessel
lesion without error associated with diagnostic
estimation of
lesion length. The folded tubular member is self-expandable or
balloon-expandable to a larger deployed
diameter following delivery to the
lesion site. An attachment anchor can be positioned at the inlet or outlet ends of the intravascular folded tubular member to prevent leakage between the tubular member and the native vessel lumen and to prevent migration of the tubular member. The attachment anchor has a short
axial length to provide a more
focal line of attachment to the vessel wall. Such attachment is valuable in attaching to a short aortic neck in the treatment of
abdominal aortic aneurysm. The attachment anchor can have barbs which are held in a protected conformation during
insertion of the tubular member and are released upon deployment of the attachment anchor. The intravascular tubular member can be formed of woven multifilament polymeric strands with metallic strands interwoven along with them. Double weaving is incorporated to prevent leakage at
crossover points.