Patent ID: 6348066
Filing Date: 2002-02-19
Classification: A61F

Abstract:
A modular endoluminal stent-graft system for bridging a lesion in a blood vessel, said blood vessel having a large diameter on a proximal side of the lesion, a small diameter on the distal side of the lesion, and an intermediate region between said proximal side and said distal side, said intermediate region having a diameter larger than said large diameter, said system comprising a first stent-graft and a second stent-graft, both stent-grafts having a contracted state for insertion into the vessel and an expanded state upon deployment in the vessel;wherein: a) the first stent-graft has a flared proximal end, a flared distal end, and a midsection, said flared proximal end having an expanded diameter at its tip adapted to be equal to or slightly larger than the large diameter of the blood vessel; and b) the second stent-graft has a proximal end and a distal end, said proximal end having an expanded diameter equal to or slightly larger than said expanded diameter of said midsection of said first stent graft, and said distal end having an expanded diameter which is adapted to be equal to or slightly larger than the small diameter of the blood vessel; and wherein: said flared distal end of said first stent-graft is adapted to directly engage the wall of the blood vessel in said intermediate region; and said distal end of said second stent graft is adapted to engage the small diameter of the blood vessel.