REPLACEMENT HEART VALVE AND METHOD
First Claim
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1. A method of implanting a replacement heart valve comprising:
- advancing a replacement heart valve to a native valve annulus;
expanding a frame of the replacement heart valve from a compacted position to a first expanded configuration such that anchors on the replacement heart valve engage the native valve annulus; and
reducing the diameter of the frame from the first expanded configuration to a second expanded configuration while the anchors remain engaged with the native valve annulus.
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Abstract
A replacement heart valve has an expandable frame configured to engage a native valve annulus and a valve body mounted to the expandable frame. The valve body can have a plurality of valve leaflets configured to open to allow flow in a first direction and engage one another so as to close and prevent flow in a second direction, the second direction being opposite the first direction.
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Citations
21 Claims
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1. A method of implanting a replacement heart valve comprising:
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advancing a replacement heart valve to a native valve annulus; expanding a frame of the replacement heart valve from a compacted position to a first expanded configuration such that anchors on the replacement heart valve engage the native valve annulus; and reducing the diameter of the frame from the first expanded configuration to a second expanded configuration while the anchors remain engaged with the native valve annulus. - View Dependent Claims (2, 3, 4, 5)
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6. A replacement heart valve comprising:
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a self-expandable frame configured to engage a native valve annulus when in an expanded configuration, the self-expandable frame having a first diameter when in a relaxed, fully expanded configuration; a valve body mounted to the self-expandable frame, the valve body comprising a plurality of valve leaflets configured to open to allow flow in a first direction and engage one another so as to close and prevent flow in a second direction, the second direction being opposite the first direction; a tether or ring having a second diameter when in a relaxed, fully expanded configuration, the tether or ring being fit about a portion of the self-expandable frame; wherein the first diameter is greater than the second diameter. - View Dependent Claims (7, 8, 9, 10, 11)
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12. A replacement heart valve comprising:
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an expandable frame configured to engage a native valve annulus; a valve body mounted onto the expandable frame, the valve body having an upstream end and a downstream end, the valve body comprising; a valve skirt configured to engage the expandable frame through a series of stitches; a plurality of valve leaflets configured to open to allow flow in a first direction and engage one another so as to close and not allow flow in a second direction opposite the first direction, the valve leaflets being attached to the valve skirt; an upstream edge of each valve leaflet being arcuate; a portion of the skirt having an arcuate upstream edge substantially aligned with the valve leaflet upstream edges; wherein the aligned skirt and valve leaflet upstream edges are attached to one another. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21)
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Specification