Patent ID: 8419782

Claim:
A method of prosthesis delivery comprising: advancing first, second and third guidewires through a first vessel; positioning the second guidewire in a second vessel that branches from the first vessel; positioning the third guidewire in a third vessel that branches from the first vessel; advancing a prosthesis delivery apparatus having a sheath and a tapered distal tip over the first, second, and third guidewires to the vicinity of one of said second and third vessels, wherein during advancement of the prosthesis delivery apparatus thereover each of the first, second and third guidewires extends through a respective channel or lumen formed in the tapered distal tip and through a prosthesis held within the sheath of the prosthesis delivery apparatus and wherein the prosthesis delivery apparatus and the prosthesis are advanced together until at least one of the second and third guidewires resists further advancement thereof in the vicinity where the at least one of the second and third guidewires enters its respective second or third vessel due to a bend in the at least one of the second and third guidewires where it exits the tapered distal tip; and deploying the prosthesis in the main vessel, wherein the prosthesis includes a tubular graft of a graft material and wherein the prosthesis is deployed such that a proximal edge of the tubular graft is positioned within the main vessel to align with or to be positioned immediately distal of a distal edge of at least one of the ostia of the second and third vessels.