Patent ID: 8753386

Claim:
A system for treating vascular disease, said system comprising: a catheter; a stent graft having at least two side branch portals, each side branch portal having a proximal end and a distal end, each distal end being substantially contiguous with an outer surface of the stent graft, the distal ends being generally axially further spaced apart than the proximal ends; a constraining sleeve for constraining the stent graft onto an end of the catheter for endoluminal delivery of the stent graft; and a guidewire tube that extends through the at least two side branch portals and preserves a lumen which guides a guidewire through the at least two side branch portals while the stent graft remains constrained by the constraining sleeve, wherein an end of the guidewire tube is closed to limit advancement of the guidewire therethrough while the guidewire tube extends through the at least two side branch portals of the constrained stent graft.