Tapered body aaa graft

A modular stent graft system comprising:

• a first stent graft having a first open end, a first cylindrical zone extending from the first open end for a first length, a tapered zone extending from the cylindrical zone for a second length, the tapered zone tapering from a first diameter to a second diameter smaller than the first diameter, and a second cylindrical zone extending from the tapered zone for a third length to a second open end, wherein the third length is greater than both the first length and the second length and the first length is greater than the second length;
• a second stent graft configured for insertion within the first stent graft, the second stent graft comprising a first open end, a tapered zone extending from the first open end for a first length, the tapered zone tapering from a first diameter to a second diameter smaller than the first diameter, and a cylindrical zone extending from the tapered zone to a second open end for a second length longer than the first length;
• wherein the first diameter of the tapered zone of the second stent graft is the same as the first diameter of the tapered zone of the first stent graft, the second diameter of the tapered zone of the second stent graft is the same as the second diameter of the tapered zone of the first stent graft;
• wherein each tapered zone has an angle of taper and the angle of taper of the tapered zone of the second stent graft is the same as the angle of taper of the tapered zone of the first stent graft;
• wherein the second stent graft cylindrical zone is longer than the first stent graft second cylindrical zone such that when the second stent graft is disposed within the first stent graft and the tapered zones are mated, the second stent graft cylindrical zone extends beyond the second open end of the first stent graft, and
• wherein when the second stent graft is disposed within the first stent graft, the tapered zone of the second stent graft conforms precisely to the tapered zone of the first stent graft in graft to graft apposition with no stent in between.

A method of deploying a modular stent graft system, the method comprising:

• inserting into the body a first stent graft having a first open end, a first cylindrical zone extending from the first open end for a first length, a tapered zone extending from the cylindrical zone for a second length, the tapered zone tapering from a first diameter to a second diameter smaller than the first diameter, and a second cylindrical zone extending from the tapered zone for a third length to a second open end, wherein the third length is greater than both the first length and the second length and the first length is greater than the second length;
• inserting into the body a second stent graft within the first stent graft, the second stent graft comprising a first open end, a tapered zone extending from the first open end for a first length, the tapered zone tapering from a first diameter to a second diameter smaller than the first diameter, and a cylindrical zone extending from the tapered zone to a second open end for a second length longer than the first length;
• wherein the first diameter of the tapered zone of the second stent graft is the same as the first diameter of the tapered zone of the first stent graft, the second diameter of the tapered zone of the second stent graft is the same as the second diameter of the tapered zone of the first stent graft, wherein each tapered zone has an angle of taper and the angle of taper of the tapered zone of the second stent graft is the same as the angle of taper of the tapered zone of the first stent graft, wherein the second stent graft cylindrical zone is longer than the first stent graft second cylindrical zone such that when the second stent graft is disposed within the first stent graft and the tapered zones are mated, the second stent graft cylindrical zone extends beyond the second open end of the first stent graft, wherein when the second stent graft is disposed within the first stent graft, the tapered zone of the second stent graft conforms precisely to the tapered zone of the first stent graft to create a fluid tight seal between graft material between the tapered zones without any stent in between.