ALEXANDRIA, Va., June 16 -- United States Patent no. 12,653,546, issued on June 16, was assigned to Mako Surgical Corp. (Weston, Fla.).

"Ligament modeling and balancing" was invented by Azhar Ali (West Orange, N.J.), Emily Hampp (Far Hills, N.J.), Xiangyi Liu (Mahwah, N.J.) and Ormonde Mahoney (Athens, Ga.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed herein are methods for determining resection depths for a knee arthroplasty procedure. The method may comprise the steps of determining a joint translation threshold, determining a joint translation of the femur with respect to the tibia during a joint gap measurement, setting a final joint gap measurement and determining knee resection depths based ...