Patents Assigned to Bird Biedermann AG
  • Dynamic clamping device for spinal implant
    Patent number: 8870925
    Abstract: A Spinal column implant for elastic stabilization of vertebrae includes an elastic rod that is anchored in a non-positive fit fashion in the receptacle of a pedicle screws by means of a mobile filling piece and a clamping element. The non-positive fit is supported additionally by a dynamic form-fit contribution upon exposure to load.
    Type: Grant
    Filed: September 12, 2006
    Date of Patent: October 28, 2014
    Assignee: Bird Biedermann AG
    Inventor: Stefan Freudiger
  • Frictional screw-rod connection having an indirect form-locking portion
    Patent number: 8282672
    Abstract: A spinal column implant for elastic stabilization of vertebrae, includes a pedicle screw and an elastic rod which is anchored in a frictional fashion in a receptacle of pedicle screws by means of a filling piece, and a clamping element. The frictional connection is supported additionally by an indirect form-fit portion.
    Type: Grant
    Filed: August 29, 2006
    Date of Patent: October 9, 2012
    Assignee: Bird Biedermann AG
    Inventor: Stefan Freudiger