Patents by Inventor Joram Raveh

Joram Raveh 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).

  • Patent number: 5807396
    Abstract: An osteosynthesis device comprises a plate and screws which are screwed into bone through holes in the plate. The diameters of the holes at the top face of the plate are larger than at the bottom face of the plate. The screws have a spherical head which, when screwed in rests snugly against the wall of the screw hole with an annular contact surface. Both when the screw is located perpendicularly with respect to the plate and when located at an angle with respect to the plate, the contact surface is located above the center line of the hole depth.
    Type: Grant
    Filed: December 18, 1996
    Date of Patent: September 15, 1998
    Assignee: Howmedica Leibinger GmbH
    Inventor: Joram Raveh
  • Patent number: 4484570
    Abstract: A plate is provided with clearance holes and fastening screws. Each screw is provided in the region of its head with a clamping part subdivided into tongues by means of slots and provided with an internal opening bounded by a conical surface. To each screw belongs an expander having a conical outer surface. The expander is axially displaceable in relation to the clamping part to force the tongues of the clamping part apart and lock the screw in relation to the plate. A rigid connection between the plate and the screws is thus provided, even if reabsorption of bone material takes place at the bearing surface of the plate.
    Type: Grant
    Filed: May 22, 1981
    Date of Patent: November 27, 1984
    Assignee: Synthes Ltd.
    Inventors: Franz Sutter, Fritz Straumann, Joram Raveh