US Patent Issued to DePuy Ireland UnLtd. on Sept. 23 for "Tibial tray with fixation features" (Indiana, North Carolina Inventors)

ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,419,755, issued on Sept. 23, was assigned to DePuy Ireland UnLtd. Co. (Ringaskiddy, Ireland).

"Tibial tray with fixation features" was invented by Mark A. Heldreth (Mentone, Ind.), Danny W. Rumple Jr. (Warsaw, Ind.), Alyssa M. Haines (Fort Wayne, Ind.) and J. Bohannon Mason (Charlotte, N.C.).

According to the abstract* released by the U.S. Patent & Trademark Office: "An orthopaedic prosthesis including a tibial tray is disclosed. The tibial tray includes a distal pocket and a plurality of inner pockets. Each inner pocket includes a channel sized to receive bone cement. The tibial tray includes distal-facing surfaces that have a surface roughness (Ra) equal to about 5.0 microns."

Th...