Electronic sphygmomanometers; Sphygmotensiometers; Medical ventilators; Ventilators and anesthesia machines for use in patient care; Oxygen concentrators for medical purposes; Foot massage apparatus; Massage sticks; Medical devices for monitoring blood oxygen saturation, blood gas concentrations, vital signs and respiratory events, and recorded software for recording, processing and transmitting medical data, for use therewith, sold as a unit; Respiratory masks for artificial respiration; Mas...