Patents by Inventor Matthew V. Lyons

Matthew V. Lyons has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Femoral stem surgical instrument system
    Patent number: 4919679
    Abstract: A femoral stem surgical instrument system includes a handle component and an impact component, either one of which is selectively coupled with a femoral stem through a recess in the femoral stem, the recess providing separate facilities for the appropriate coupling of either of the components with the femoral stem, with each of the separate facilities being protected against damage when the other of the facilities is in use.
    Type: Grant
    Filed: January 31, 1989
    Date of Patent: April 24, 1990
    Assignee: Osteonics Corp.
    Inventors: Robert G. Averill, Alfred J. Zarnowski, Matthew V. Lyons
  • Dual-radius acetabular cup component
    Patent number: 4892549
    Abstract: An acetabular cup has a shell component with an outer surface including a first spherical surface portion and a second spherical surface portion, and an acetabulum is prepared with an inner surface having a spherical configuration complementary to the second spherical surface portion of the shell component, the radius of the first spherical surface portion being slightly greater than the radius of the second spherical surface portion such that upon nesting of the second spherical surface portion of the shell component in contiguous relationship with the inner surface of the acetabulum, the first spherical surface portion engages the inner surface of the acetabulum in an interference fit to secure the shell component within the prepared acetabulum.
    Type: Grant
    Filed: January 31, 1989
    Date of Patent: January 9, 1990
    Assignee: Osteonics Corp.
    Inventors: Harry E. Figgie, III, Alfred J. Zarnowski, Matthew V. Lyons