44 TUBULAR MEDICAL AND SURGICAL DEVICES; NAMELY, LAVAGE TUBES, LEVIN TUBES, INTESTINAL TUBES, WOUND SUMP DRAINS, AND DRAINAGE TUBES AND SYSTEMS FOR DRAINING BODY CAVITIES; GAS STERILIZATION APPARATUS AND PARTS THEREFOR FOR STERILIZING MEDICAL, SURGICAL AND DENTAL APPARATUS; SURGICAL SUCTION DEVICES SUCH AS SURGICAL PUMPS AND THORACIC ASPIRATORS; VENOUS PRESSURE MEASURING DEVICES; MANOMETERS; AND SURGICAL TOOLS SUCH AS ORTHOPEDIC DRILLS, BITS, SAWS, AND PINS