Ключевые слова: analysis, background, beat, blood, body, cardio, cardiology, cardiovascular, care, checking, closeup, color, composition, concept, control, copy, device, diagnostic, doctor, equipment, examination, fingertip, green, health, heart, hypertension, hypotension, illness, level, measuring, medicine, modern, monitoring, nobody, object, oximeter, oxygen, portable, pressure, pulsation, pulse, pulsimeter, screen, sick, smart, space, stethoscope, test, text, treatment,