Leaflet abrasion mitigation
First Claim
Patent Images
1. A prosthetic heart valve, comprising:
- a stent extending in a longitudinal direction and having a plurality of commissure features;
a valve assembly secured to the stent, the valve assembly including a cuff and a plurality of leaflets, each of the leaflets having a pair of attachment regions for coupling to the plurality of commissure features, and a free edge extending between the attachment regions; and
a plurality of deflection features coupled to the attachment regions of the leaflets to prevent the free edges of the leaflets from contacting at least one of the stent, the cuff and a calcium nodule when the leaflets are in an open position,wherein each of the plurality of deflection features includes a continuous elongated tab, wherein the elongated tab is folded along a first fold line extending along a first axis and then folded along a second fold line extending along a second axis transverse to the first axis.
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Abstract
A prosthetic heart valve includes a stent extending in a longitudinal direction and having a plurality of commissure features. A valve assembly is secured to the stent, the valve assembly including a cuff and a plurality of leaflets. Each of the leaflets has a pair of attachment regions and a free edge extending between the attachment regions. A deflection feature disposed in each attachment region is configured and arranged to prevent the free edges of the leaflets from contacting at least one of the stent or the cuff.
132 Citations
10 Claims
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1. A prosthetic heart valve, comprising:
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a stent extending in a longitudinal direction and having a plurality of commissure features; a valve assembly secured to the stent, the valve assembly including a cuff and a plurality of leaflets, each of the leaflets having a pair of attachment regions for coupling to the plurality of commissure features, and a free edge extending between the attachment regions; and a plurality of deflection features coupled to the attachment regions of the leaflets to prevent the free edges of the leaflets from contacting at least one of the stent, the cuff and a calcium nodule when the leaflets are in an open position, wherein each of the plurality of deflection features includes a continuous elongated tab, wherein the elongated tab is folded along a first fold line extending along a first axis and then folded along a second fold line extending along a second axis transverse to the first axis. - View Dependent Claims (2, 3)
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4. A prosthetic heart valve, comprising:
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a stent extending in a longitudinal direction and having a plurality of commissure features; a valve assembly secured to the stent, the valve assembly including a cuff and a plurality of leaflets, each of the leaflets having a pair of attachment regions for coupling to the plurality of commissure features, and a free edge extending between the attachment regions; and a deflection feature coupled to each attachment region of a leaflet to prevent the free edge of the leaflet from contacting at least one of the stent, the cuff and a calcium nodule, wherein the deflection feature includes a continuous elongated tab, wherein the elongated tab is folded along a first fold line extending along a first axis and then folded along a second fold line extending along a second axis transverse to the first axis. - View Dependent Claims (5, 6, 7, 8, 9, 10)
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Specification