ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,746,018, issued on Sept. 29, was assigned to Knimble Designs Inc. (Menlo Park, Calif.).

"Methods and apparatus for mid-flexion balancing during knee arthroplasty" was invented by Richard David Komistek (Knoxville, Tenn.), Thomas Jefferson Blumenfeld (Davis, Calif.), Derek F. Amanatullah (Menlo Park, Calif.) and Michael LaCour (Knoxville, Tenn.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Joint balancing methods and apparatus for arthroplasty procedures are disclosed. An example knee balancing jig may include a tibial placement guide configured for mounting to a tibial reference in a generally medial-lateral orientation in position generally anterior ...