ALEXANDRIA, Va., Oct. 8 -- United States Patent no. 12,433,760, issued on Oct. 7, was assigned to Endac Co. Ltd (Gyeonggi-do, South Korea).
"Variable vertebral cage" was invented by Kyung Hak Kim (Gyeonggi-do, South Korea) and Gil Sam Lee (Gyeonggi-do, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "Proposed is a vertebral cage including a body which is inserted between a vertebra and a neighboring vertebra, and is provided with a space part that can be filled with bone powder; a blade which is rotatably provided on an inner side surface of the body. The cage also includes a locking means which fixes the blade, which has or has not been rotated on the body, on the inner side surface of the body, w...