Medical devices, namely, pulse oximeters, blood glucose meter, body fluid monitor, breath gas analyzers for medical diagnostics, heart monitors, heart monitors to be worn during exercise, oxygen monitors for medical use, patient monitoring sensors and alarms, blood oxygen monitors, electrocardiography monitors, Holter monitors, continuous electrocardiography (ECG) monitors, health monitors comprising sensor that monitor the health of infant, elderly or disabled in their own homes, patient monitors for critical care and anesthesia, in-ear monitors for medical purposes; medical devices for monitoring vital signs, blood properties and respiratory events, oxymetory, gas analysis; medical devices for monitoring vital signs, blood properties and respiratory events, oxymetory, gas analysis and software sold as a unit therewith; medical devices for monitoring vital signs, blood properties and respiratory events, oxymetory, gas analysis and system that transmit the data through the Internet; medical devices for monitoring brain, heart, lung, teeth, eyes, ears, skins and metabolic functions; medical devices for monitoring weight, muscle, bone, vision, hearing, urine, excrement, body temperature, posture, mood, fatigue; medical devices for treating sleep disorders; medical devices for monitoring sleep apnea; medical devices for detecting rapid eye movement and other physiological conditions in a sleeping person indicative of dreaming; medical devices for monitoring symptoms and the treatment of Parkinson's disease; medical devices for the diagnosis and treatment of arrhythmias; portable medical devices with sensors to monitor the physical movements of a patient wearing or carrying the device; electroencephalography kit consisting of an electrode headset, a digital recorder and transmitter, a tablet computer monitor, and instructions for use in medical settings including emergency departments, ambulances, intensive care units, and physician's offices; medical devices for accessing subcutaneous structures of the human body for the purpose of administering medical treatment; heart rate monitors; electrocardiographs; medical apparatus and instruments for monitoring vital signs, heart rate, blood pressure, pulse rate, respiration rate; medical equipment accessories, namely, cardiac electrodes