ALEXANDRIA, Va., Sept. 10 -- United States Patent no. 12,408,902, issued on Sept. 9, was assigned to Cilag GmbH International (Zug, Switzerland).
"Drive patterns and spline arrangement for robotic surgical tools" was invented by Andrew T. Beckman (Cincinnati) and Charles J. Scheib (Loveland, Ohio).
According to the abstract* released by the U.S. Patent & Trademark Office: "A surgical tool includes a handle having opposing first and second ends, a lead screw and a spline are rotatably coupled to and extend between the opposing ends. The spline is arranged a distance from the lead screw such that the lead screw assumes torsional loading generated by the spline. Another surgical tool includes first and second splines with a first activating ...