ALEXANDRIA, Va., June 4 -- United States Patent no. 12,318,309, issued on June 3.
"Modular interbody spacer" was invented by Hieu T. Ball (Walnut Creek, Calif.) and Lance M. Middleton (Soddy Daisy, Tenn.).
According to the abstract* released by the U.S. Patent & Trademark Office: "An intervertebral spinal spacer system includes a first portion of a modular spacer, the first portion having an upper surface, a lower surface, and an outer surface, and a second portion of the modular spacer, the second portion having an upper surface a lower surface, and an outer surface. The first portion is selectively engageable with the second portion. The first portion and the second portion each define an internal cavity extending from the respective up...