ALEXANDRIA, Va., June 2 -- United States Patent no. 12,642,559, issued on June 2, was assigned to GRAMERCY EXTREMITY ORTHOPEDICS LLC (Richardson, Texas).

"Tarsometatarsal joint arthrodesis tools and related methods for bunion correction" was invented by Paul J. Vasta (Richardson, Texas), Scott Campbell (Richardson, Texas) and Edward A. Lebrija (Richardson, Texas).

According to the abstract* released by the U.S. Patent & Trademark Office: "A kit for conducting a tarsometatarsal joint arthrodesis to orient a first metatarsal relative to a medical cuneiform includes a metatarsal cut guide having a positioning paddle and a cut guide slot, four wires, a cuneiform cut guide having a second locking mechanism, a third locking mechanism, a cuneifo...