REPLACEMENT HEART VALVES, DELIVERY DEVICES AND METHODS
First Claim
1. A method of delivering a replacement valve to a native mitral valve and securing the replacement valve relative to the native mitral valve annulus, the native mitral valve annulus supporting native leaflets, the method comprising:
- delivering a replacement valve mounted on a delivery device to the native mitral valve annulus while the replacement valve is in a radially compacted state, the replacement valve comprising a radially expandable frame and a first plurality of anchors extending from the frame; and
positioning the replacement valve so that tips of the first plurality of anchors are on a ventricular side of the native leaflets beyond a location where chordae tendineae connect to free ends of the native leaflets;
releasing at least a portion of the replacement valve from the delivery device to thereby expand the first plurality of anchors radially outwardly; and
engaging tips of the first plurality of anchors with tissue on a ventricular side of the native valve annulus with the first plurality of anchors extending between at least some of the chordae tendineae.
3 Assignments
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Accused Products
Abstract
A replacement heart valve and method of treating valve insufficiency includes an expandable frame configured to engage a native valve annulus. A valve body is coupled to the frame. The valve body can include a leaflet portion and possibly a skirt portion. A portion of the frame has a foreshortening portion configured to longitudinally expand when urged to a radially compacted state and longitudinally contract when urged to a radially expanded state. In one embodiment the valve skirt is attached to the frame so that it can adapt to changes in the length of the frame. A delivery device in some embodiments can use one or more coverings, such as sheaths, to controllably release the replacement heart valve at a native heart valve.
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Citations
9 Claims
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1. A method of delivering a replacement valve to a native mitral valve and securing the replacement valve relative to the native mitral valve annulus, the native mitral valve annulus supporting native leaflets, the method comprising:
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delivering a replacement valve mounted on a delivery device to the native mitral valve annulus while the replacement valve is in a radially compacted state, the replacement valve comprising a radially expandable frame and a first plurality of anchors extending from the frame; and positioning the replacement valve so that tips of the first plurality of anchors are on a ventricular side of the native leaflets beyond a location where chordae tendineae connect to free ends of the native leaflets; releasing at least a portion of the replacement valve from the delivery device to thereby expand the first plurality of anchors radially outwardly; and engaging tips of the first plurality of anchors with tissue on a ventricular side of the native valve annulus with the first plurality of anchors extending between at least some of the chordae tendineae. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification