Patent Issued for Modular head assembly for spinal fixation (USPTO 12114898).

A patent has been issued for a modular head assembly for spinal fixation by K2M Inc., focusing on improving spinal fixation devices. The invention aims to address drawbacks of conventional pedicle screw assemblies by introducing a "bottom loaded" or "modular" design that allows for easier handling and alignment during surgery. The patent describes various embodiments of the pedicle screw assembly, including features such as an anvil with protrusions to restrict movement to a single plane and a biasing member to prevent the housing from moving excessively. This innovation offers potential benefits for spinal surgery by providing surgeons with more flexibility and ease of use in correcting spinal column disorders. [Extracted from the article]