Patents Assigned to Steinzeug- und Kunststoffwerke Friedrichsfeld GmbH
  • Femur component for an artificial hip joint
    Patent number: 4407022
    Abstract: The shaft portion of an artificial hip joint intended for cement-free anchoring in a femur which is generally rectangular in cross-section and is provided with outwardly projecting steps for direct transfer of axial forces between the shaft and the bone tissue, one half of the steps being transversely inclined with respect to the shaft axis with the other half of the steps inclined in the opposite direction by an equal amount to prevent rotation of the shaft as a result of the development of equal and opposite components of force.
    Type: Grant
    Filed: June 16, 1981
    Date of Patent: October 4, 1983
    Assignee: Steinzeug- und Kunststoffwerke Friedrichsfeld GmbH
    Inventors: Gunther Heimke, Peter Griss