Devices and methods for preventing distal embolization using flow reversal and perfusion augmentation within the cerebral vasculature
AssigneeCoAxia, Inc.
InventorDenise R. Barbut
Life of this patent
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Abstract
Methods of using a medical device having catheter with one or more expandable constricting/occluding members for preventing distal embolization during extracranial or intracranial carotid procedures or vertebral artery procedures by augmenting collateral cerebral circulation by coarctation of the aorta to enhance reversal of blood flow in an internal carotid artery, an external carotid artery, and/or a common carotid artery toward the subclavian artery are disclosed. An interventional catheter can also be advanced into a left cerebral artery and a procedure performed on a lesion in the left cerebral artery.
Claims10
A method for reversing blood flow in a cerebral artery, comprising the steps of:
- locating a first constricting member in the left common carotid artery upstream of the external carotid artery;
- locating a second constricting member in the aorta downstream of the left common carotid artery;
- expanding the first constricting member to at least partially obstruct the left common carotid artery;
- and
- expanding the second constricting member to at least partially obstruct the aorta,
- wherein blood flow is reversed in the left internal carotid artery.
Dependencies are inferred from the claim text.