CARDIAC VALVE REPAIR SYSTEM AND METHODS OF USE
First Claim
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1. A replacement cardiac valve comprising:
- a helical anchor configured to engage opposite sides of one or more leaflets of a defective cardiac valve;
an expandable stent configured to transition from a contracted delivery state to an expanded deployed state; and
a replacement valve disposed within the expandable stent,wherein the expandable stent is configured to be deployed within the helical anchor, the helical anchor limiting expansion of the expandable stent.
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Abstract
Methods and apparatus are provided for repairing or replacing a defective cardiac valve including an anchor having a double helix configured to engage the cardiac valve leaflets of a diseased or defective cardiac valve, and a replacement valve body disposed in an expandable stent configured to be disposed within the anchor so that the anchor limits expansion of the expandable stent. The expandable stent of the replacement valve body may be self-expanding or mechanically expanded, e.g., using a balloon catheter or catheter-based mandrel and the valve body may be formed of animal tissue or a synthetic fabric.
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Citations
25 Claims
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1. A replacement cardiac valve comprising:
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a helical anchor configured to engage opposite sides of one or more leaflets of a defective cardiac valve; an expandable stent configured to transition from a contracted delivery state to an expanded deployed state; and a replacement valve disposed within the expandable stent, wherein the expandable stent is configured to be deployed within the helical anchor, the helical anchor limiting expansion of the expandable stent. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A method of repairing a cardiac valve comprising:
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engaging a helical anchor with opposite sides of one or more leaflets of a cardiac valve; deploying an expandable stent including a replacement valve within the helical anchor, the helical anchor limiting expansion of the expandable stent. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25)
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Specification