US Patent Issued to DEPUY IRELAND UNLtd. on Sept. 8 for "Knee prosthesis having non-uniform stiffness" (British Inventor)

ALEXANDRIA, Va., Sept. 8 -- United States Patent no. 12,728,010, issued on Sept. 8, was assigned to DEPUY IRELAND UNLtd. COMPANY (Ringaskiddy, Ireland).

"Knee prosthesis having non-uniform stiffness" was invented by Mathew J. Walkington (West Yorkshire, Great Britain).

According to the abstract* released by the U.S. Patent & Trademark Office: "A knee prosthesis comprises a unicondylar knee prosthesis having a unicondylar insert platform and a tibial base attached to a bottom side of the unicondylar insert platform. The unicondylar insert platform has a uniform stiffness gradient (e.g., a density or porosity gradient), whereas the tibial base has a non-uniform stiffness gradient (e.g., a density or porosity gradient) when the tibial base i...