VASCULAR IMPLANT AND DELIVERY SYSTEM
First Claim
1. A method of delivering a replacement valve to a native mitral valve and securing the replacement valve relative to a native mitral valve annulus, 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 plurality of first anchors extending from the frame;
positioning the replacement valve so that the plurality of first anchors are on a ventricular side of the native mitral valve annulus;
releasing a portion of the replacement valve from the delivery device so that the portion of the replacement valve at least partially radially expands and the plurality of first anchors on the portion are positioned radially from the delivery device;
moving the replacement valve toward the native mitral valve so that the plurality of first anchors engage tissue on a ventricular side of the native mitral valve annulus; and
with the plurality of first anchors engaging tissue on the ventricular side of the native mitral valve annulus, further releasing the replacement valve from the delivery device and expanding the frame to a radially expanded state.
3 Assignments
0 Petitions
Accused Products
Abstract
A vascular implant for replacing a native heart valve comprises a self expanding stent supporting a valve body having leaflets. The stent preferably comprises an anchoring structure configured to prevent the implant from passing through the valve annulus. For delivery, the implant is compacted within a delivery device and secured at one end. During delivery the implant is partially released from the delivery device, and positioning of the implant can be verified prior to full release. The implant can be at least partially resheathed and repositioned if desired.
78 Citations
12 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 a native mitral valve annulus, 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 plurality of first anchors extending from the frame; positioning the replacement valve so that the plurality of first anchors are on a ventricular side of the native mitral valve annulus; releasing a portion of the replacement valve from the delivery device so that the portion of the replacement valve at least partially radially expands and the plurality of first anchors on the portion are positioned radially from the delivery device; moving the replacement valve toward the native mitral valve so that the plurality of first anchors engage tissue on a ventricular side of the native mitral valve annulus; and with the plurality of first anchors engaging tissue on the ventricular side of the native mitral valve annulus, further releasing the replacement valve from the delivery device and expanding the frame to a radially expanded state. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification