ALEXANDRIA, Va., June 25 -- United States Patent no. 12,336,907, issued on June 24, was assigned to Medtronic Vascular Inc. (Santa Rosa, Calif.).

"Tip assemblies, systems, and methods for fracturing a frame of a deployed prosthesis" was invented by Matthew Genovese (Windsor, Calif.) and Christopher Storment (Sonoma, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A system for fracturing a frame of a deployed prosthesis with ultrasonic vibration includes a shaft, a tip assembly, an ultrasonic electric generator, and an ultrasonic transducer. The shaft includes a proximal portion and a distal portion. The tip assembly is coupled to the distal portion of the shaft. The tip assembly includes a cutting edge...