Patent ID: 8252036

Claim:
A sealable vascular system, comprising: an endovascular aortic stent graft to be delivered in a compressed or folded state to an implantation site in the thoracic or abdominal aorta, said endovascular aortic stent graft including: a tubular implant graft body; and a sealable circumferential collar at said tubular implant graft body and including: a variable sealing device; and a control lead traversing from said variable sealing device to a user for controlling said variable sealing device by the user, said variable sealing device and said control lead being cooperatively operable to reversibly expand and contract said sealable circumferential collar such that said sealable circumferential collar is circumferentially adjustable during deployment thereof to achieve a repositionable fluid-tight seal between said sealable circumferential collar and the internal walls of the implantation site in the thoracic or abdominal aorta.