ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,521,178, issued on Jan. 13, was assigned to S.M.A.I.O. (Saint-Priest, France).

"Method for designing a pair of connection rods intended to be implanted on the spine of a patient, and method for producing such a rod" was invented by Philippe Roussouly (Lyons, France) and Pierre Roussouly (Saint Cyr Au Mont d'Or, France).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method of designing a pair of fixation rods for implantation on a patient's spine includes: modelling the spine: determining a corrected vertebrae position; modelling the corrected spine by: realigning the vertebrae in the frontal plane, rotating the sacral plateau in the sagittal plane, mod...