VASCULAR IMPLANT AND DELIVERY SYSTEM
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.
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Citations
17 Claims
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1. (canceled)
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2. A replacement mitral valve configured to be delivered to a native mitral valve and secured relative to a native mitral valve annulus, the native mitral valve positioned between a left atrium and a left ventricle, the replacement mitral valve comprising:
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an expandable frame comprising a proximal end and a distal end and a longitudinal axis extending therethrough, the frame configured to radially expand and collapse for deployment within the native mitral valve annulus; a plurality of proximal anchors connected to the frame and configured to be positioned on an atrial side of the native mitral valve annulus, wherein when the frame is in an expanded configuration within the native mitral valve annulus, the plurality of proximal anchors extend radially outward on the atrial side of the native mitral valve annulus and extend at least partially distally; a plurality of distal anchors connected to the frame and configured to be positioned on a ventricular side of the native mitral valve annulus, wherein when the frame is in an expanded configuration within the native mitral valve annulus; each distal anchor extends at least partially distally away from the distal end of the frame and then extends at least partially proximally toward the proximal end of the frame; a proximalmost portion of each distal anchor is positioned radially outward from the frame; and the proximalmost portions of the distal anchors are proximal to where the distal anchors connect to the frame; and a valve body attached to the expandable frame; wherein radial expansion of the frame causes the plurality of distal anchors to draw closer to the proximal anchoring portion. - View Dependent Claims (3, 4, 5, 6, 7)
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8. A replacement mitral valve configured to be delivered to a native mitral valve and secured relative to a native mitral valve annulus, the native mitral valve positioned between a left atrium and a left ventricle, the replacement mitral valve comprising:
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an expandable frame comprising a proximal end and a distal end and a longitudinal axis extending therethrough, the frame configured to radially expand and collapse for deployment within the native mitral valve annulus; a plurality of proximal anchors each connected to the frame so that when the frame is in an expanded configuration, outermost ends of the proximal anchors are positioned radially outward from a portion of the frame; and a plurality of distal anchors each connected to the frame so that when the frame is in an expanded configuration, the distal anchors have outermost ends that are positioned radially outward from a portion of the frame and the distal anchors extend generally proximally so that the outermost ends of the distal anchors are proximal to where the distal anchors connect to the frame; and a valve body attached to the expandable frame; wherein the outermost ends of the proximal anchors are not circumferentially aligned with the outermost ends of the distal anchors when the frame is in an expanded configuration; and wherein the frame is configured such that radial expansion of the frame causes the proximal anchors and the distal anchors to draw closer together. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17)
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Specification