Patents by Inventor Beat Schenk

Beat Schenk 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).

  • Threaded washer and bone screw apparatus
    Patent number: 6048344
    Abstract: A threaded washer with a central bore for use with a bone screw is disclosed. The washer is threaded into a counterbore extending below the bone surface and into cancellous bone material. The external washer threads are tapered to provide improved purchase. The bone screw is inserted through the central bore of the washer and threaded into the fragment beyond the fracture. The washer provides improved compressive forces while permitting the bone screw head to be located beneath the bone surface.
    Type: Grant
    Filed: November 17, 1998
    Date of Patent: April 11, 2000
    Assignee: Synthes (U.S.A.)
    Inventor: Beat Schenk
  • Threaded washer
    Patent number: 5997541
    Abstract: A threaded washer with a central bore for use with a bone screw is disclosed. The washer is threaded into a counterbore extending below the bone surface and into cancellous bone material. The external washer threads are tapered to provide improved purchase. The bone screw is inserted through the central bore of the washer and threaded into the fragment beyond the fracture. The washer provides improved compressive forces while permitting the bone screw head to be located beneath the bone surface.
    Type: Grant
    Filed: November 17, 1998
    Date of Patent: December 7, 1999
    Assignee: Synthes (U.S.A)
    Inventor: Beat Schenk
  • Threaded washer
    Patent number: 5899906
    Abstract: A threaded washer with a central bore for use with a bone screw is disclosed. The washer is threaded into a counterbore extending below the bone surface and into cancellous bone material. The external washer threads are tapered to provide improved purchase. The bone screw is inserted through the central bore of the washer and threaded into the fragment beyond the fracture. The washer provides improved compressive forces while permitting the bone screw head to be located beneath the bone surface.
    Type: Grant
    Filed: January 18, 1996
    Date of Patent: May 4, 1999
    Assignee: Synthes (U.S.A.)
    Inventor: Beat Schenk
  • Adjustable clamp for bone fixation element
    Patent number: 5741252
    Abstract: A clamp for fixing bone pins or wires to an external frame is disclosed. The clamp has a central post, an upper vise plate and a lower vise plate urged together on the post, by a spring for provisional placement, a nut for positively locking the vise plates together on a frame, and a pin clamp that can be moved along the axis of the central post, and can receive and clamp either a bone pin or a bone wire. The pin or wire has unlimited angular movement in two planes. The clamp is a captive unit that requires no intraoperative assembly.
    Type: Grant
    Filed: June 10, 1997
    Date of Patent: April 21, 1998
    Assignee: Synthes U.S.A.
    Inventors: Michael Mazzio, Beat Schenk, Dianne Herrin