ALEXANDRIA, Va., June 12 -- United States Patent no. 12,295,603, issued on May 13, was assigned to Conmed Corp. (Largo, Fla.).

"Method of securing the shaft of a surgical instrument to the instrument housing" was invented by Mason Williams (Centennial, Colo.) and Julia Concelman (Cranberry Township, Pa.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A surgical instrument having a housing, an outer shaft extending from the housing along a longitudinal axis, an inner shaft extending within the outer shaft along the longitudinal axis, a rotator knob position about the outer shaft, and a tube stop coupling the rotator knob to the outer shaft for collective rotation about the longitudinal axis and fixed within th...