Everting Heart Valve
1 Assignment
0 Petitions
Accused Products
Abstract
The present invention provides methods and apparatus for endovascularly replacing a patient'"'"'s heart valve. The apparatus includes a replacement valve and an expandable anchor configured for endovascular delivery to a vicinity of the patient'"'"'s heart valve. In some embodiments, the replacement valve is adapted to wrap about the anchor, for example, by everting during endovascular deployment. In some embodiments, the replacement valve is not connected to expandable portions of the anchor. In some embodiments, the anchor is configured for active foreshortening during endovascular deployment. In some embodiments, the anchor includes expandable lip and skirt regions for engaging the patient'"'"'s heart valve during deployment. In some embodiments, the anchor comprises a braid fabricated from a single strand of wire. In some embodiments, the apparatus includes a lock configured to maintain anchor expansion. The invention also includes methods for endovascularly replacing a patient'"'"'s heart valve. In some embodiments, the method includes the steps of endovascularly delivering a replacement valve and an expandable anchor to a vicinity of the heart valve, wrapping at least a portion of the replacement valve about the anchor, and expanding the anchor to a deployed, configuration.
19 Citations
27 Claims
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1. -7. (canceled)
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8. A medical device comprising:
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an anchor configured to be deployed in a diseased heart valve; a replacement valve disposed within an interior of the anchor; and a seal having a bunched-up portion, the bunched-up portion disposed around the exterior of the anchor and adapted to prevent blood flow around the anchor when the anchor is deployed. - View Dependent Claims (9, 11, 12, 13)
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10. The medical device of 8, wherein the bunched-up portion of the seal is adapted to fill with blood in response to backflow blood pressure.
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14. A medical device comprising:
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an anchor configured to be deployed in a diseased heart valve; a replacement valve disposed within the interior of the anchor; and a seal having an exterior portion disposed around an exterior of the anchor, the exterior portion of the seal comprising one or more sacs, the sacs adapted to prevent blood flow around the anchor when the anchor is deployed. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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21. A medical device comprising:
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an expandable anchor configured to be deployed in a diseased heart valve; a replacement heart valve disposed within an interior of the expandable anchor; and a seal that, during delivery, extends from a distal end of the replacement valve, within the interior of the expandable anchor, and back proximally over an exterior of the anchor. - View Dependent Claims (22, 23, 24, 25, 26, 27)
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Specification