Patent ID: 8221494

Claim:
An endoluminal prosthesis system comprising: a first endoluminal prosthesis comprising a first main graft body comprising a first axial opening, a second axial opening, a first lumen extending between the first and second axial openings of the first main graft body, a first lateral opening formed laterally through the first main graft body and in communication with the first lumen, and a second lateral opening formed laterally through the first main graft body and in communication with the first lumen; a second endoluminal prosthesis comprising a second main graft body comprising a first axial opening, a second axial opening, a first lumen extending between the first and second axial openings of the second main graft body, a first lateral opening formed laterally through the first main graft body and in communication with the first lumen, and a second lateral opening formed laterally through the first main graft body and in communication with the first lumen; and a hollow guidewire advanced through at least a portion of the first lumen of the first main graft body and through one of the first and second lateral openings of the first main graft body when the first main graft body is in a collapsed, pre-delivery state; wherein: the first lateral opening in the first main graft body is smaller than the second lateral opening in the first main graft body; the first lateral opening in the second main graft body is smaller than the second lateral opening in the second main graft body; the second main graft body is configured to be expandable substantially within the first main graft body such that the second lateral opening of the second main graft body does not cover any portion of the first lateral opening in the first main graft body, and such that the second lateral opening of the first main graft body does not cover any portion of the first lateral opening in the second main graft body; and when the second main graft body has been expanded within the first main graft body, the resulting endoluminal prosthesis system has two lateral openings therein that are each approximately equivalent in size to the first lateral opening in each of the first and second main graft bodies.