US Patent Issued on Nov. 18 for "Polyaxial pedicle screw assembly with cannulated screw shank having an internal drive socket surrounded by a planar top end surface" (Kansas Inventor)

ALEXANDRIA, Va., Nov. 18 -- United States Patent no. 12,471,958, issued on Nov. 18.

"Polyaxial pedicle screw assembly with cannulated screw shank having an internal drive socket surrounded by a planar top end surface" was invented by Roger P. Jackson (Prairie Village, Kan.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A polyaxial pedicle screw assembly includes a receiver having a channel for receiving a rod and a central bore with a seating surface proximate a bottom opening. The assembly also includes a screw shank having a shank head at a proximal end and an anchor portion at a distal end configured for fixation to the bone, with the shank head having an outer spherical surface with a single common radiu...