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Replacement heart valve

  • US 6,719,789 B2
  • Filed: 05/21/2002
  • Issued: 04/13/2004
  • Est. Priority Date: 11/01/1993
  • Status: Expired due to Fees
First Claim
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1. A prosthetic heart valve, comprising:

  • at least two cusps comprised of a thin and flexible material, each cusp having an inner surface and an outer surface and each cusp being attached to another cusp on both sides of the cusps along longitudinal suture lines, each of the cusps adapted to flex inwardly into and out of engagement with another cusp so as to close and open the valve in response to force by blood pressure;

    wherein a portion of the inner surface of one cusp is in a facing relationship with a portion of the inner surface of another cusp adjacent the longitudinal suture line when the valve is open so that the cusps are biased partially closed even when the valve is generally open.

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