Patents Assigned to Shiley Laboratories, Incorporated
  • Prosthetic tissue heart valve
    Patent number: 4084268
    Abstract: A tissue heart valve has a cloth-covered stent which provides several layers of padding over the stent edges and an integral sewing ring while maximizing the internal valve diameter for a given size heart annulus. No edges of the cloth are exposed. A continuation of the pledget covers all knots of the stitches connecting the tissue to the stent.
    Type: Grant
    Filed: April 22, 1976
    Date of Patent: April 18, 1978
    Assignee: Shiley Laboratories, Incorporated
    Inventors: Marian I. Ionescu, Bruce E. Fettel