Vascular implant
First Claim
1. A replacement mitral valve for delivery to a native mitral valve to be 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:
- an expandable frame comprising a proximal end and a distal end and a longitudinal axis extending therethrough, the frame shaped to radially expand and collapse for deployment within the native mitral valve annulus;
a plurality of proximal anchors connected to the frame and sized to contact the native mitral valve 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 sized to contact the native mitral valve 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 plurality of proximal anchors; and
wherein the replacement mitral valve is shaped such that, after the replacement mitral valve has been delivered to the native mitral valve and expanded, at least some of the plurality of proximal anchors contact tissue on the atrial side of the native mitral valve annulus and at least some of the plurality of distal anchors contact tissue on the ventricular side of the native mitral valve annulus.
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
19 Claims
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1. A replacement mitral valve for delivery to a native mitral valve to be 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 shaped to radially expand and collapse for deployment within the native mitral valve annulus; a plurality of proximal anchors connected to the frame and sized to contact the native mitral valve 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 sized to contact the native mitral valve 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 plurality of proximal anchors; and wherein the replacement mitral valve is shaped such that, after the replacement mitral valve has been delivered to the native mitral valve and expanded, at least some of the plurality of proximal anchors contact tissue on the atrial side of the native mitral valve annulus and at least some of the plurality of distal anchors contact tissue on the ventricular side of the native mitral valve annulus. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A replacement mitral valve for delivery to a native mitral valve to be 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 shaped 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 shaped such that radial expansion of the frame causes the proximal anchors and the distal anchors to draw closer together; wherein the proximal and distal anchors are arranged along a circumference of the replacement mitral valve such that, when the frame is in the expanded configuration within the native mitral valve annulus, at least some of the plurality of proximal anchors contact tissue on an atrial side of the native mitral valve annulus and at least some of the plurality of distal anchors contact tissue on a ventricular side of the native mitral valve annulus. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification