Patents by Inventor Marcus A. Kester

Marcus A. Kester 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).

  • Emulating natural knee kinematics in a knee prosthesis
    Patent number: 7160330
    Abstract: A knee prosthesis and method for emulating movements, during flexion, of a natural knee joint replaced by the knee prosthesis, by enabling engagement and relative movement between the femoral component and the tibial component of the knee prosthesis along arcuate tracks, including rotational movement about a longitudinal axis of rotation, during flexion about a transverse axis of rotation, and maintaining the transverse axis of rotation essentially in a generally medial-lateral longitudinal plane maintained in close proximity with a generally coronal plane passing through the centers of curvature of the arcuate tracks during flexion within at least a prescribed range of flexion extending from about 0° of flexion to a predetermined degree of flexion, preferably about 60° of flexion.
    Type: Grant
    Filed: January 21, 2003
    Date of Patent: January 9, 2007
    Assignee: Howmedica Osteonics Corp.
    Inventors: Stuart L. Axelson, Jr., Damon J. Servidio, Marcus A. Kester
  • Emulating natural knee kinematics in a knee prosthesis
    Publication number: 20040143339
    Abstract: A knee prosthesis and method for emulating movements, during flexion, of a natural knee joint replaced by the knee prosthesis, by enabling engagement and relative movement between the femoral component and the tibial component of the knee prosthesis along arcuate tracks, including rotational movement about a longitudinal axis of rotation, during flexion about a transverse axis of rotation, and maintaining the transverse axis of rotation essentially in a generally medial-lateral longitudinal plane maintained in close proximity with a generally coronal plane passing through the centers of curvature of the arcuate tracks during flexion within at least a prescribed range of flexion extending from about 0° of flexion to a predetermined degree of flexion, preferably about 60° of flexion.
    Type: Application
    Filed: January 21, 2003
    Publication date: July 22, 2004
    Inventors: Stuart L. Axelson, Damon J. Servidio, Marcus A. Kester