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Method for producing heart valves

  • US 6,165,215 A
  • Filed: 10/29/1998
  • Issued: 12/26/2000
  • Est. Priority Date: 05/05/1996
  • Status: Expired due to Fees
First Claim
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1. A method for producing valves for blood flow control having an outer sleeve and a plurality of flexible leaflets fixed to an inner surface of the sleeve, compnrsing:

  • molding the valve to a first shape in which the valve leaflets are in a closed position;

    holding the valve in a second desired shape, in which the valves are in an open position; and

    immersing the valve in a hot liquid while holding it in the second shape.

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