Body cavity prosthesis
First Claim
Patent Images
1. A prosthesis configured to be deployed within a patient'"'"'s mitral valve having a mitral annulus, the prosthesis comprising:
- 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 mitral valve;
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 the frame and configured to be positioned on an atrial side of the mitral annulus; and
a plurality of distal anchors each connected to the frame so that when the frame is in an expanded configuration, the distal anchors curve radially outwardly and have outermost ends that are positioned radially outward from the frame and extend generally proximally so that the outermost ends of the distal anchors are proximal to where the distal anchors connect to the frame, the plurality of distal anchors each comprising a tip that extends proximally and substantially parallel to the longitudinal axis of the frame when the frame is in an expanded configuration, the distal anchors configured to be positioned on a ventricular side of the mitral annulus;
a valve body attached to the frame, wherein the valve body can move between (i) an open position wherein blood can flow from the proximal end toward the distal end to allow blood to flow from the left atrium to the left ventricle, and (ii) a closed position which blocks blood from flowing from the distal end toward the proximal end to block blood from flowing from the left ventricle to the left atrium;
wherein the outermost ends of the proximal anchors are circumferentially offset from 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.
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Abstract
A prosthesis can be configured to be deployed within a body cavity. The prosthesis has an expandable frame, a plurality of proximal anchors, and a plurality of distal anchors, where the various anchors are connected to the frame. Radial expansion of the frame can cause the ends of the proximal anchors and the ends of the distal anchors to draw closer together.
671 Citations
26 Claims
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1. A prosthesis configured to be deployed within a patient'"'"'s mitral valve having a mitral annulus, the prosthesis 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 mitral valve; 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 the frame and configured to be positioned on an atrial side of the mitral annulus; and a plurality of distal anchors each connected to the frame so that when the frame is in an expanded configuration, the distal anchors curve radially outwardly and have outermost ends that are positioned radially outward from the frame and extend generally proximally so that the outermost ends of the distal anchors are proximal to where the distal anchors connect to the frame, the plurality of distal anchors each comprising a tip that extends proximally and substantially parallel to the longitudinal axis of the frame when the frame is in an expanded configuration, the distal anchors configured to be positioned on a ventricular side of the mitral annulus; a valve body attached to the frame, wherein the valve body can move between (i) an open position wherein blood can flow from the proximal end toward the distal end to allow blood to flow from the left atrium to the left ventricle, and (ii) a closed position which blocks blood from flowing from the distal end toward the proximal end to block blood from flowing from the left ventricle to the left atrium; wherein the outermost ends of the proximal anchors are circumferentially offset from 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 (2, 3, 4, 5, 6, 7, 8, 9, 22, 23, 24, 25, 26)
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10. A prosthesis configured to be deployed within a body cavity, the prosthesis 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 contract for deployment within the body cavity, wherein the frame comprises a foreshortening portion and a non-foreshortening portion, wherein; the foreshortening portion comprises a plurality of interconnected cells having a proximal end and a distal end; and the non-foreshortening portion comprising a plurality of struts having at least a portion thereof extending longitudinally so that the non-foreshortening portion is not substantially expandable in a longitudinal direction, the struts having distal ends that are connected to the proximal ends of the cells, wherein the portion of each of the struts that extends longitudinally extends only longitudinally for substantially the entire distance between the proximal ends of the cells and the proximal end of the frame; a plurality of proximal anchors each connected to the non-foreshortening portion of the frame so that when the frame is in an expanded configuration, outermost portions of the proximal anchors are positioned radially outward from the frame; and a plurality of distal anchors each connected to the foreshortening portion of the frame so that when the frame is in an expanded configuration, outermost portions of the distal anchors are positioned radially outward from the frame and extend proximally and substantially parallel to the longitudinal axis of the frame when the frame is in an expanded configuration; 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 (11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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Specification