ALEXANDRIA, Va., July 16 -- United States Patent no. 12,667,352, issued on June 30, was assigned to Alphatec Spine Inc. (Carlsbad, Calif.).

"Surgical retractors and methods of using the same" was invented by Andrew W. Rajek (Escondido, Calif.), Stephen Vidmar (Carlsbad, Calif.), James Lee (Vista, Calif.), David Considine (Torrington, Conn.), Graham Witherby (Dana Point, Calif.) and Maximilian Garcia (Encinitas, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "This disclosure relates generally to surgical retractors and surgical retractor systems configured to provide access to a surgical site, such as a portion of a patient's spine. Also disclosed are retractor blades or blade assemblies connectable to ...