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Prosthetic heart valves having fiber reinforced leaflets

  • US 10,314,696 B2
  • Filed: 03/28/2016
  • Issued: 06/11/2019
  • Est. Priority Date: 04/09/2015
  • Status: Active Grant
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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