ALEXANDRIA, Va., June 17 -- United States Patent no. 12,311,150, issued on May 27, was assigned to FHC Inc. (Bowdoin, Maine).

"Method and apparatus for controlled relative motion of surgical instruments and components" was invented by Frederick A. Haer (Brunswick, Maine) and John Robert Williams (Freeport, Maine).

According to the abstract* released by the U.S. Patent & Trademark Office: "A system for controlling relative delivery of a therapeutic during a surgical intervention, having: a base; a frame having a proximal end and a distal end; a first subassembly having: a syringe carriage configured to interface with the frame and be moveable relative thereto; a plunger shaft having a proximal end and a distal end, the plunger shaft connec...