Polymer heart valve with perforated stent and sewing cuff
First Claim
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1. A prosthetic heart valve having an inside and an outside and comprising:
- a polymeric valve body having at least one leaflet, said leaflet having an open position and a closed position, a stent coupled to said valve body, said stent having a plurality of apertures, said apertures providing openings between the outside of the prosthetic heart valve and the inside of the prosthetic heart valve and said apertures being capable of receiving sewing ring fasteners, wherein said stent comprises a circumferential base and the apertures penetrate said base, wherein at least a portion of the stent is embedded in the polymeric valve body, and wherein said polymeric valve body encloses said base and includes a plurality of apertures in said polymeric valve body corresponding to said apertures in said base.
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Abstract
A prosthetic heart valve having an elastomeric stent with an annular base and a plurality of apertures or holes circumferentially spaced around the base for receiving a suture. Flexible polymeric leaflets are molded over the stent. Polymeric material surrounds the apertures, leaving a central opening in each aperture. The base may be a frustro-conical ring. A sewing ring is mounted on the heart valve by suturing the ring through the apertures. Apertures or holes may also be provided by extending an area covered by woven material around all or part of the circumference of the base.
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Citations
26 Claims
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1. A prosthetic heart valve having an inside and an outside and comprising:
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a polymeric valve body having at least one leaflet, said leaflet having an open position and a closed position, a stent coupled to said valve body, said stent having a plurality of apertures, said apertures providing openings between the outside of the prosthetic heart valve and the inside of the prosthetic heart valve and said apertures being capable of receiving sewing ring fasteners, wherein said stent comprises a circumferential base and the apertures penetrate said base, wherein at least a portion of the stent is embedded in the polymeric valve body, and wherein said polymeric valve body encloses said base and includes a plurality of apertures in said polymeric valve body corresponding to said apertures in said base. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A prosthetic heart valve comprising:
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a polymeric valve body having at least one leaflet, said leaflet having an open position and a closed position, a stent molded within said valve body, said stent having a plurality of apertures, said apertures being exposed through said polymeric valve body. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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Specification