Integral supporting structure for bioprosthetic heart valve
First Claim
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1. An annular stent for receiving and supporting a heart valve for implantation into a human, the heart valve including leaflets joined at circumferentially spaced commissures, the annular stent comprising:
- a plurality of circumferentially spaced commissure support posts, each commissure support post including an inflow edge;
inflow rail segments connected between the inflow edges of the commissure support posts;
said inflow rail segment having a different density than the commissure support post; and
at least one sinus support structure, said sinus support structure being disposed adjacent to but not connected to a commissure support post.
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Abstract
A stent for receiving and supporting a tissue heart valve for ultimate implantation into a human, the heart valve including tissue leaflets joined at circumferentially spaced commissures, wherein the stent includes at least one commissure support post and at least one sinus support structure each sinus support structure being disposed between but not functionally connected to an adjacent commissure support post.
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Citations
23 Claims
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1. An annular stent for receiving and supporting a heart valve for implantation into a human, the heart valve including leaflets joined at circumferentially spaced commissures, the annular stent comprising:
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a plurality of circumferentially spaced commissure support posts, each commissure support post including an inflow edge; inflow rail segments connected between the inflow edges of the commissure support posts; said inflow rail segment having a different density than the commissure support post; and at least one sinus support structure, said sinus support structure being disposed adjacent to but not connected to a commissure support post. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An annular stent for receiving and supporting a heart valve for implantation into a human, the heart valve including leaflets joined at circumferentially spaced commissures, the annular stent comprising:
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a plurality of circumferentially spaced commissure support posts, each commissure support post including an inflow edge, an outflow edge, and side rails, said side rails taper from narrower adjacent the outflow edge to wider adjacent the inflow edge; inflow rail segments connected between the inflow edges of the commissure support posts; and at least one sinus support structure, said sinus support structure being disposed adjacent to but not connected to a commissure support post. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. An annular stent for receiving and supporting a heart valve for implantation into a human, the heart valve including leaflets joined at circumferentially spaced commissures, the annular stent comprising:
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a plurality of circumferentially spaced commissure support posts, each commissure support post including an inflow edge and at least one longitudinally extending central opening, each commissure support post has a stiffness from about 0.59 N/mm to about 0.73 N/mm; inflow rail segments connected between the inflow edges of the commissure support posts; and at least one sinus support structure, said sinus support structure being disposed adjacent to but not connected to a commissure support post, said sinus support structure having a pair of diverging arms not connected to an adjacent commissure support post. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23)
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Specification