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 the delivery device comprising;
a first elongate member comprising a proximal end and a distal end;
an inner retention ring positioned over the first elongate member, wherein the replacement valve is configured to be connected to the inner retention ring;
a support tube configured to be slidable over the first elongate member and the inner retention ring;
a second elongate member configured to be slidable over the first elongate member and the support tube; and
a third elongate member configured to be slidable over the second elongate member and the replacement valve;
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
0 Petitions
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.
-
Citations
18 Claims
-
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 the delivery device comprising; a first elongate member comprising a proximal end and a distal end; an inner retention ring positioned over the first elongate member, wherein the replacement valve is configured to be connected to the inner retention ring; a support tube configured to be slidable over the first elongate member and the inner retention ring; a second elongate member configured to be slidable over the first elongate member and the support tube; and a third elongate member configured to be slidable over the second elongate member and the replacement valve; 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, 10, 11, 12, 13, 14, 15, 16, 17, 18)
-
Specification