Stents for prosthetic heart valves
First Claim
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1. A stented valve comprising:
- a stent structure comprising a generally tubular body portion having an interior area, a longitudinal axis, and a plurality of longitudinally extending wires in a central region of the stent structure, wherein the plurality of wires includes multiple commissure wires spaced at a first distance from the longitudinal axis and at least one structural wire positioned between each two adjacent commissure wires, wherein the structural wires are spaced at a second distance from the longitudinal axis, wherein the first distance is smaller than the second distance; and
a valve structure comprising a plurality of leaflets, wherein each leaflet comprises a first end, a second end, and a free edge extending between the first and second ends;
wherein a first end of each leaflet is attached to a commissure wire in the central stent region and a second end of each leaflet is attached to an adjacent commissure wire in the central stent region so that the free edge of each leaflet does not contact the structural wires in the central stent region when the valve is in an open position.
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Abstract
A stented valve including a stent structure including a generally tubular body portion that has a first end and a second end, wherein an area adjacent the first end has a first stiffness, an area adjacent the second end has a second stiffness, and a central region between the areas at the first and second ends has a third stiffness that is less than the stiffness adjacent the first and second ends, wherein the stent structure can be reconfigured in its central area to match a curved patient anatomical region. The stented valve further includes a valve structure attached within the generally tubular portion.
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Citations
15 Claims
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1. A stented valve comprising:
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a stent structure comprising a generally tubular body portion having an interior area, a longitudinal axis, and a plurality of longitudinally extending wires in a central region of the stent structure, wherein the plurality of wires includes multiple commissure wires spaced at a first distance from the longitudinal axis and at least one structural wire positioned between each two adjacent commissure wires, wherein the structural wires are spaced at a second distance from the longitudinal axis, wherein the first distance is smaller than the second distance; and a valve structure comprising a plurality of leaflets, wherein each leaflet comprises a first end, a second end, and a free edge extending between the first and second ends; wherein a first end of each leaflet is attached to a commissure wire in the central stent region and a second end of each leaflet is attached to an adjacent commissure wire in the central stent region so that the free edge of each leaflet does not contact the structural wires in the central stent region when the valve is in an open position. - View Dependent Claims (2, 3)
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4. A stented valve comprising:
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a stent structure comprising a generally tubular body portion having a first end and a second end, wherein the diameter at one of the ends is different from the diameter at a second end; and a valve structure attached within the generally tubular body portion. - View Dependent Claims (5, 6, 7)
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8. A stented valve comprising:
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a stent structure comprising a generally tubular body portion having a first end and a second end, wherein an area adjacent the first end has a first stiffness, an area adjacent the second end has a second stiffness, and a central region between the areas at the first and second ends has a third stiffness that is less than the stiffness adjacent the first and second ends, wherein the stent structure can be reconfigured in its central area to match a curved patient anatomical region; and a valve structure attached within the generally tubular body portion. - View Dependent Claims (9, 10, 11)
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12. A stented valve comprising:
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a stent structure comprising a generally tubular body portion having a first end and a second end, at least one wing extending outwardly relative to a longitudinal axis of the body portion at the first end of the body portion, and at least one intermediate wing extending outwardly relative to a longitudinal axis of the body portion between its first and second ends, wherein the intermediate wing is positioned for engagement with a non-coronary sinus area of a patient'"'"'s heart; and a valve structure attached within the generally tubular body portion. - View Dependent Claims (13, 14, 15)
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Specification