Patent ID: 6890330

Claim:
Apparatus for providing access to a functioning vascular system of a patient, said apparatus comprising; a main body having sidewalls defining an interior region, an exterior region, a bottom end, and a top end; a base formed at the bottom end of said main body and having securing means thereon configured for attachment to the vascular system of the patient and configured for formation of a seal between said base and the functioning vascular system of the patient, said base containing an opening therein, the opening configured to provide a passageway from the interior region of said main body to the functioning vascular system of the patient, and said opening of said base being selectively adjustable in attachment to the vascular system of the patient between a first configuration and a second configuration, said first configuration providing said opening with a first given cross-sectional area, said second configuration providing said opening with a second given cross-sectional area, and the second given cross-sectional area being larger than said first given cross-sectional area; and a cover attached to the top end of said main body, and configured to provide a barrier between the interior region and the exterior region at the top end of said main body.