Abstract

Photoplethysmogram is used in medicine to monitor several diseases in a basic and convenient way. The object of research is a pulse oximeter - a device that measures the concentration of noninvasive hemoglobin in the blood and pulse ratios, based on the recording of a photoplethysmogram from a tool placed on the fingertip. This method is used in anesthesiology, resuscitation departments and operating rooms, is widely used in pulmonology departments, therapy and cardiology. In addition, the pulse oximeter goes beyond medicine and is used successfully in sports, games, professional fields, and so on. In the ultimate qualification work, existing methods of heart rate determination (pulse), based upon the method of photoplethysmography, which formed the basis for the development, was considered. This non-invasive method, formed on studying the absorption of light passing through the tissue site with pulsating blood, is simple and convenient. It is intended to operate this device, available to a wide range of users, both in monitoring vital signs and early diagnosis of diseases, and in self-monitoring and training. Keywords: Pulse oximetry, heart rate, non-invasive

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