Embolic protection system
Abstract:
An embolic protection and filtration device (EFD) that is deployable within the aortic arch of a patient to prevent emboli from entering the coronary arteries. The device includes a collapsible tubular chassis having enlarged opposing end portions and a midsection of smaller radial dimension. A filtration membrane is disposed at least on upstream and midsection portions of the chassis and is configured to filter and shunt large emboli down the descending aorta and away from the coronary arteries. A retrieval device is provided for retrieving the EFD from within the patient. The retrieval device automatically compensates for elongation of the EFD as the EFD is radially contracted such that the EFD is not moved or drug along the aorta as it is collapsed and retracted into a retrieval catheter.
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