US Patent Issued to NuVasive on Oct. 28 for "Expansion driver" (California Inventors)

ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,453,644, issued on Oct. 28, was assigned to NuVasive Inc. (San Diego).

"Expansion driver" was invented by Christopher Besaw (San Diego), Thomas Sweeney III (San Diego) and Christopher Stein (San Diego).

According to the abstract* released by the U.S. Patent & Trademark Office: "This disclosure includes an expansion driver for adjusting expandable implants, the expansion driver including an input shaft operably connected to at least one bevel gear, the at least one bevel gear configured to engage each of a first gear and a second gear; the first gear connected to a first output shaft, the first output shaft terminating in a first driver configured to communicate with a first actuator ...