Patents Examined by David A. Schwerbel
  • Bone cement mixing and loading apparatus
    Patent number: 5415474
    Abstract: An apparatus for mixing bone cement and containing the mixed bone cement preparatory to dispensing. The mixing chamber has an outlet for the mixed cement. A cartridge has an inlet releasably coupled to the outlet of the mixing chamber for receiving mixed bone cement therefrom. Structure is provided for moving cement from an upper region of the mixing chamber down into a lower region thereof to mix same and for moving such mixed cement off an inner surface of the mixing chamber and into the cartridge.
    Type: Grant
    Filed: November 29, 1993
    Date of Patent: May 16, 1995
    Assignee: Stryker Corporation
    Inventors: Charles Nelson, Michael W. Steffler, Douglas L. Tyler, Sr., Eugene P. Lautenschlager, Richard L. Wixson