Prosthetic heart valves having fiber reinforced leaflets
First Claim
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1. A prosthetic heart valve leaflet comprising a composite material, the composite material comprising:
- a plurality of electrospun fibers at least partially embedded in a polymer matrix, the plurality of electrospun fibers comprising a first polyisobutylene urethane block copolymer comprising hard and soft segment portions, having a first predetermined weight average percentage of hard segment portions and the polymer matrix comprising a second polyisobutylene urethane block copolymer comprising hard and soft segment portions, having a second predetermined weight average percentage of hard segment portions, wherein the first predetermined weight average percentage of the hard segment portions is greater than the second predetermined weight average percentage of the hard segment portions.
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Abstract
A prosthetic heart valve leaflet includes a plurality of electrospun fibers at least partially embedded in a polymer matrix. The plurality of fibers includes a first polyisobutylene urethane copolymer having a first predetermined weight average percentage of hard segment portions and the polymer matrix includes a second polyisobutylene urethane copolymer having a second predetermined weight average percentage of the hard segment portions, wherein the first predetermined weight average percentage of the hard segment portions is greater than the second predetermined weight average percentage of the hard segment portions.
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Citations
11 Claims
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1. A prosthetic heart valve leaflet comprising a composite material, the composite material comprising:
a plurality of electrospun fibers at least partially embedded in a polymer matrix, the plurality of electrospun fibers comprising a first polyisobutylene urethane block copolymer comprising hard and soft segment portions, having a first predetermined weight average percentage of hard segment portions and the polymer matrix comprising a second polyisobutylene urethane block copolymer comprising hard and soft segment portions, having a second predetermined weight average percentage of hard segment portions, wherein the first predetermined weight average percentage of the hard segment portions is greater than the second predetermined weight average percentage of the hard segment portions. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
Specification