ALEXANDRIA, Va., Feb. 11 -- United States Patent no. 12,544,533, issued on Feb. 10, was assigned to CLEARFLOW INC. (Irvine, Calif.) and The Cleveland Clinic Foundation (Cleveland).

"Methods and devices to clear obstructions from medical tubes" was invented by Edward M. Boyle Jr. (Bend, Ore.), Nathan J. Dale (Bothell, Wash.), Paul C. Leonard (Woodinville, Wash.), Alan Marc Gillinov (Orange Village, Ohio), Sam Kiderman (Broadview Heights, Ohio) and William E. Cohn (Bellaire, Texas).

According to the abstract* released by the U.S. Patent & Trademark Office: "A device for clearing obstructions from a medical tube, such as a chest tube, is disclosed in various embodiments. The device features a clearance member in the form of a loop. The loop ...