Pedicle screw
OwnerJurgen Harms, Lutz Biedermanninventors
Life of this patent
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Abstract
A pedicle screw (1) for use in the monosegmental or multisegmental stabilization of the spinal column comprises a thread and a receiver portion. In order to facilitate the mounting and to reduce the stress of the screw and the threaded rods for connection therewith, a threaded shaft part (2) and a receiver part (3) are mutually connected in an articulated manner.
Claims5
A pedicle screw for stabilizing spinal segments comprising a shaft embodying a thread shank, a partially spherical-shaped head at one end of the threaded shaft, a receiver part embodying two halves for receiving the head of the shaft and a ring disposed about said halves for holding the halves in embracing engagement with said head.
Dependencies are inferred from the claim text.