Stents for prosthetic heart valves
First Claim
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1. A stented valve comprising:
- a generally tubular stent structure comprising a longitudinal axis, first and second opposite ends, a plurality of commissure support structures spaced apart from each of the first and second ends of the stent structure and extending generally parallel to the longitudinal axis, at least one structural wire positioned between each two adjacent commissure support structures, and at least one wing portion extending from two adjacent commissure support structures and toward one of the first and second ends of the stent structure; 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 one of the commissure support structures and wherein a second end of each leaflet is attached to an adjacent commissure support structure.
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Abstract
A stented valve including a generally tubular stent structure that has a longitudinal axis, first and second opposite ends, a plurality of commissure support structures spaced from the first and second ends and extending generally parallel to the longitudinal axis, at least one structural wire positioned between each two adjacent commissure support structures, and at least one wing portion extending from two adjacent commissure support structures and toward one of the first and second ends of the stent structure. The stented valve further includes a valve structure attached within the generally tubular stent structure to the commissure support structures.
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Citations
21 Claims
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1. A stented valve comprising:
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a generally tubular stent structure comprising a longitudinal axis, first and second opposite ends, a plurality of commissure support structures spaced apart from each of the first and second ends of the stent structure and extending generally parallel to the longitudinal axis, at least one structural wire positioned between each two adjacent commissure support structures, and at least one wing portion extending from two adjacent commissure support structures and toward one of the first and second ends of the stent structure; 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 one of the commissure support structures and wherein a second end of each leaflet is attached to an adjacent commissure support structure. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A generally tubular stent structure comprising a longitudinal axis, first and second opposite ends, and a plurality of wire segments extending from each other between the first and second ends, wherein a portion of the stent structure comprises a sinusoidal curve shape relative to the longitudinal axis,
wherein the stent structure comprises a generally linear portion extending from the first end toward the second end, and wherein the portion that has a sinusoidal curve shape comprises a first portion that curves outwardly from the linear portion relative to the longitudinal axis and that extends from the linear portion, a second portion that curves back inwardly from the first portion relative to the longitudinal axis and that extends from the first portion, and a third portion that curves back outwardly from the second portion relative to the longitudinal axis and that extends from the second portion, and wherein the first portion defines a first circumferential wing that extends around at least a portion of a circumference of the stent structure.
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15. A stent assembly comprising:
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a stented valve comprising a tubular stent frame having a first end and a second end, and a plurality of commissure posts longitudinally extending from a first end of the stent frame, and a valve structure comprising a plurality of leaflets, wherein the valve structure is secured within an internal opening of the stent frame; an elongated tether extending longitudinally from a distal end of each of the commissure posts, wherein each tether comprises a distal end that is spaced from the distal end of the commissure post from which it extends; and a stent graft positioned between the tethers and spaced from the distal end of the commissure posts. - View Dependent Claims (16, 17, 18, 19, 20, 21)
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Specification