Valve prosthesis
First Claim
Patent Images
1. A valve prosthesis comprising:
- a valve body including a plurality of valve leaflets affixed to a skirt; and
a frame including a distal inflow section, a proximal outflow section, and a valve section between the inflow section and the outflow section, wherein;
the valve body is attached to the frame in the valve section at a plurality of commissure points,the frame includes a circumferentially repeating cell pattern in the inflow section and the valve section,the outflow section includes a plurality of loops, the plurality of loops being attached to a proximal row of circumferentially repeating cells of the valve section at a plurality of junctions,wherein each of the plurality of loops includes a respective first strut and a respective second strut joined proximally at a loop edge, with the first strut being attached distally to a proximal crown of a respective first cell of the proximal row of cells of the valve section at a respective first junction of the plurality of junctions and with the second strut being attached distally to a proximal crown of a respective second cell of the proximal row of cells of the valve section at a respective second junction of the plurality of junctions,wherein a plurality of circumferentially adjacent cells in the proximal row of cells of the valve section are positioned entirely between the first and second junctions of each loop in a circumferential direction, with proximal crowns of the plurality of circumferentially adjacent cells being unattached to the outflow section, andwherein the valve section is distal to the outflow section and a proximal-most end of the commissure points is distal to the proximal crowns of the plurality of circumferentially adjacent cells of the proximal row of cells.
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Abstract
Heart valve prostheses are provided having a self-expanding frame that supports a valve body comprising a skirt and a plurality of coapting leaflets. The self-expanding frame includes an inflow section, a valve section, and an outflow section. The outflow section forms attachment loops in a collapsed configuration to attach the frame to a delivery system.
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Citations
15 Claims
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1. A valve prosthesis comprising:
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a valve body including a plurality of valve leaflets affixed to a skirt; and a frame including a distal inflow section, a proximal outflow section, and a valve section between the inflow section and the outflow section, wherein; the valve body is attached to the frame in the valve section at a plurality of commissure points, the frame includes a circumferentially repeating cell pattern in the inflow section and the valve section, the outflow section includes a plurality of loops, the plurality of loops being attached to a proximal row of circumferentially repeating cells of the valve section at a plurality of junctions, wherein each of the plurality of loops includes a respective first strut and a respective second strut joined proximally at a loop edge, with the first strut being attached distally to a proximal crown of a respective first cell of the proximal row of cells of the valve section at a respective first junction of the plurality of junctions and with the second strut being attached distally to a proximal crown of a respective second cell of the proximal row of cells of the valve section at a respective second junction of the plurality of junctions, wherein a plurality of circumferentially adjacent cells in the proximal row of cells of the valve section are positioned entirely between the first and second junctions of each loop in a circumferential direction, with proximal crowns of the plurality of circumferentially adjacent cells being unattached to the outflow section, and wherein the valve section is distal to the outflow section and a proximal-most end of the commissure points is distal to the proximal crowns of the plurality of circumferentially adjacent cells of the proximal row of cells. - View Dependent Claims (2, 4)
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3. A valve prosthesis comprising:
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a valve body including a plurality of valve leaflets affixed to a skirt; and a frame including a distal inflow section, a proximal outflow section, and a valve section between the inflow section and the outflow section, wherein; the valve body is attached to the frame in the valve section at a plurality of commissure points, the frame includes a circumferentially repeating cell pattern in the inflow section and the valve section, the outflow section includes a plurality of loops, the plurality of loops being attached to a proximal row of circumferentially repeating cells of the valve section at a plurality of junctions, wherein each of the plurality of loops includes a respective first strut and a respective second strut joined proximally at a loop edge, with the first strut being attached distally to a proximal crown of a respective first cell of the proximal row of cells of the valve section at a respective first junction of the plurality of junctions and with the second strut being attached distally to a proximal crown of a respective second cell of the proximal row of cells of the valve section at a respective second junction of the plurality of junctions, wherein a plurality of circumferentially adjacent cells in the proximal row of cells of the valve section are positioned entirely between each of the first and second junctions of a respective loop in a circumferential direction with proximal crowns of the plurality of circumferentially adjacent cells being unattached to the outflow section, and wherein in a collapsed configuration of the frame, a portion of the first strut of each loop touches a portion of the second strut of the respective loop to form a closed attachment loop between the first strut, the second strut, and the loop edge of each respective loop, and wherein the portions of the first strut and the second strut which touch each other in the collapsed configuration do not touch each other in a deployed configuration of the frame. - View Dependent Claims (5, 6)
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7. A valve prosthesis for deploying within a native aortic heart valve comprising:
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a valve body including a plurality of leaflets affixed to a skirt; and a single lumen frame including, a first tubular structure having a first axis, a second tubular structure having a second axis, the second tubular structure including a plurality of loops wherein each of the plurality of loops includes a first strut and a second strut joined proximally at a loop edge and joined distally to respective first and second junctions of a plurality of junctions that attach the first tubular structure to the second tubular structure, the plurality of junctions forming bending points between the first tubular structure and the second tubular structure, wherein in a collapsed configuration of the frame, the first strut and the second strut of each loop each includes four curves, a first curve, a second curve, a third curve, and a fourth curve, wherein the first curve is disposed between one of the first and second junctions and the second curve, the second curve is disposed between the first curve and the third curve, the third curve is disposed between the second curve and the fourth curve, and the fourth curve is disposed between the third curve and the loop edge, wherein the third curve of each of the first strut and the second strut of one of the plurality of loops touch each other when the frame is in the collapsed configuration and do not touch each other in a deployed configuration of the frame, wherein the valve body is attached to the frame in the first tubular structure, and wherein in the deployed configuration the second tubular structure is configured to bend from the first tubular structure at the plurality of junctions such that the first axis of the first tubular structure generally aligns on a sinus axis of a native aortic heart valve and the second axis of the second tubular structure generally aligns on an aortic axis of an aorta with the second axis being offset at an angle from the first axis. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15)
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Specification