MEDICAL APPARATUS-NAMELY, PORTABLE ECG RECORDING UNITS, CARDIAC DIAGNOSTIC INSTRUMENTS, ARRHYTHMIA COUNTERS, RECORDER/PROGRAMMER TIMERS, STRESS TEST AND REHABILITATION UNITS, REHABILITATION MONITORING UNITS, ELECTROCONVULSIVE THERAPY UNITS, ELECTROENCEPHALOGRAPHS

PRESSURE SENSORS, IMPLANTABLE IN THE HEAD FOR MONITORING INTRACRANIAL PRESSURE IN CASES OF HYDROCEPHALUS AND HEAD TRAUMA AND MONITORING ANIMAL CRANIAL PRESSURE DURING VARIOUS IN VIVO RESEARCH EXPERIMENTS