Patents by Inventor Koch: Rudolf

Koch: Rudolf 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).

  • Fixing stem for an endoprosthesis
    Patent number: 4988359
    Abstract: The stem of the prosthesis is fixed in a medullated bone by means of a plurality of spacers which are distributed over the length of the stem. The spacers serve to stabilize the stem over the entire length of the stem within the bone cavity. Bone cement is charged into each peripheral opening defined between a pair of spacers via bores drilled transversely through the cortex of the bone in stages from the distal end toward the proximal end.
    Type: Grant
    Filed: March 11, 1989
    Date of Patent: January 29, 1991
    Assignee: Sulzer Brothers Limited
    Inventors: Otto Frey, Koch: Rudolf