ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,419,542, issued on Sept. 23, was assigned to Stryker Corp. (Portage, Mich.).

"Surgical system and method of evaluating the extent to which a limb is held by a limb holder" was invented by Donald W. Malackowski (Schoolcraft, Mich.) and Douglas A. Staunton (Kalamazoo, Mich.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Surgical systems and methods to interact with a limb of a patient held by a limb holder. An instrument is configured to apply a force externally to the limb held by the limb holder, One or more controllers measure an extent to which the limb moves relative to the limb holder in response to the force applied externally to the limb by the i...