Collapsible prosthetic heart valves
First Claim
1. A prosthetic heart valve comprising:
- a balloon-expandable stent including a plurality of struts and a plurality of commissure posts, each commissure post containing an elongated slot;
a plurality of leaflets made from pericardial tissue and including flaps;
an intermediate polymer sheet disposed between the stent and the plurality of leaflets;
at least one reinforcing polymer core attached to at least one leaflet and the intermediate polymer sheet using stitches that loop around an end of the at least one leaflet;
a plurality of patches covering the elongated slots of the commissure posts, the flaps of the leaflets being attached to the patches; and
a cuff contacting an exterior of the stent, the cuff and the intermediate polymer sheet sutured to one another so as to cover an axial end of the stent.
2 Assignments
0 Petitions
Accused Products
Abstract
A prosthetic heart valve includes a balloon-expandable stent including a plurality of struts and a plurality of commissure posts, each commissure post containing an elongated slot. A plurality of leaflets is made from pericardial tissue and includes flaps. An intermediate polymer sheet is disposed between the stent and the plurality of leaflets. At least one reinforcing polymer core is attached to at least one leaflet and the intermediate polymer sheet using stitches that loop around an end of the at least one leaflet. A plurality of patches covers the elongated slots of the commissure posts, the flaps of the leaflets being attached to the patches. A cuff contacts an exterior of the stent, the cuff and the intermediate polymer sheet sutured to one another so as to cover an axial end of the stent.
365 Citations
29 Claims
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1. A prosthetic heart valve comprising:
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a balloon-expandable stent including a plurality of struts and a plurality of commissure posts, each commissure post containing an elongated slot; a plurality of leaflets made from pericardial tissue and including flaps; an intermediate polymer sheet disposed between the stent and the plurality of leaflets; at least one reinforcing polymer core attached to at least one leaflet and the intermediate polymer sheet using stitches that loop around an end of the at least one leaflet; a plurality of patches covering the elongated slots of the commissure posts, the flaps of the leaflets being attached to the patches; and a cuff contacting an exterior of the stent, the cuff and the intermediate polymer sheet sutured to one another so as to cover an axial end of the stent. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A prosthetic heart valve comprising:
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a balloon-expandable stent extending between an upstream end having an edge and a downstream end and including a plurality of struts and a plurality commissure posts, each commissure post containing an elongated slot; a polymer sheet attached to an inner surface of the stent; a plurality of leaflets made from pericardial tissue, the leaflets having reinforced ends and being attached to the polymer sheet using stitches that whip around the reinforced ends of the leaflets; a plurality of patches each covering an elongated slot of a corresponding commissure post, each patch being disposed radially outward of the corresponding commissure post and attached to a pair of the leaflets; and a cuff attached to the stent, the patches extending downstream of the cuff. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. A prosthetic heart valve comprising:
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a balloon-expandable stent extending between a first end having a first edge and a second end and including a plurality of struts and a plurality of non-cantilevered commissure posts each containing an elongated slot; a buffer composed of polymer and attached to an inner surface of the stent; a plurality of leaflets made from pericardial tissue and including flaps; a plurality of patches each covering an elongated slot of a corresponding commissure post and each being disposed radially outward thereof, each patch being attached to the stent and to a pair of adjacent flaps of adjacent leaflets; and a cuff contacting an outer surface of the stent, the cuff and the buffer collectively covering the first edge of the stent. - View Dependent Claims (20, 21, 22, 23, 24, 25)
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26. A prosthetic heart valve comprising:
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a balloon-expandable stent extending between a first end having a first edge and a second end, and including a plurality of struts and three angularly spaced commissure windows each comprising an enclosed opening between first and second axially oriented side struts; a buffer composed of polymer and attached to an inner surface of the stent; a plurality of leaflets each made from pericardial tissue and comprising two opposing side tabs, each side tab being paired with an adjacent side tab of an adjacent leaflet to form leaflet commissures; a plurality of patches covering the enclosed openings of the commissure windows, the tabs of the leaflets being attached to the patches; and a cuff contacting an exterior of the stent, the cuff and the buffer collectively covering the first edge of the stent. - View Dependent Claims (27, 28, 29)
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Specification