Method and apparatus for cerebral embolic protection
First Claim
1. A method of cerebral embolic protection, comprising:
- intercepting embolic materials in the blood flow in a patient'"'"'s ascending aorta with an aortic shunt device placed in the patient'"'"'s aortic arch; and
redirecting the embolic materials from the patient'"'"'s ascending aorta past the patient'"'"'s aortic arch vessels to the patient'"'"'s descending aorta.
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Accused Products
Abstract
An aortic shunt apparatus and methods for cerebral embolic protection are described for isolating the aortic arch vessels from the aortic lumen, for selectively perfusing the arch vessels with a fluid and for redirecting blood flow within the aortic lumen and any potential embolic materials carried in the blood through a shunt past the isolated arch vessels. The perfusion shunt apparatus may be mounted on a catheter or cannula for percutaneous introduction or for direct insertion into the aorta. The perfusion shunt apparatus has application for protecting a patient from embolic stroke and hypoperfusion during cardiopulmonary bypass or cardiac surgery and also for selectively perfusing the cerebrovascular circulation with oxygenated blood or with neuroprotective fluids in the presence of risk factors, such as head trauma or cardiac insufficiency. The perfusion shunt apparatus will also find application for selective perfusion of other organ systems within the body.
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Citations
56 Claims
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1. A method of cerebral embolic protection, comprising:
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intercepting embolic materials in the blood flow in a patient'"'"'s ascending aorta with an aortic shunt device placed in the patient'"'"'s aortic arch; and
redirecting the embolic materials from the patient'"'"'s ascending aorta past the patient'"'"'s aortic arch vessels to the patient'"'"'s descending aorta. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method of cerebral embolic protection, comprising:
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intercepting blood flow from a patient'"'"'s ascending aorta with an aortic shunt device placed in the patient'"'"'s aortic arch; and
redirecting the blood flow from the patient'"'"'s ascending aorta and any embolic materials contained in the blood flow past the patient'"'"'s aortic arch vessels to the patient'"'"'s descending aorta. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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31. Apparatus for cerebral embolic protection, comprising:
an aortic shunt device configured for placement in a patient'"'"'s aortic arch, the aortic shunt device having an upstream end configured for intercepting embolic materials in the blood flow in a patient'"'"'s ascending aorta, a body configured for redirecting the embolic materials past the patient'"'"'s aortic arch vessels, and a downstream end configured for discharging the redirected embolic materials into the patient'"'"'s descending aorta. - View Dependent Claims (32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43)
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44. Apparatus for cerebral embolic protection, comprising:
an aortic shunt device configured for placement in a patient'"'"'s aortic arch, the aortic shunt device having an upstream end configured for intercepting blood flow from the patient'"'"'s ascending aorta, a body configured for redirecting the blood flow from the patient'"'"'s ascending aorta and any potential embolic materials contained in the blood flow past the patient'"'"'s aortic arch vessels, and a downstream end configured for discharging the redirected blood flow into the patient'"'"'s descending aorta. - View Dependent Claims (45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56)
Specification