Velyhotskyi D. Non-invasive monitoring of human condition during carbon monoxide intoxication

Velyhotskyi D.V. Non-invasive monitoring of human condition during carbon monoxide intoxication. – On the rights of manuscript. The dissertation for the Candidate degree of Technical Sciences in the specialty 05.11.17 – Biological and medical devices and systems. – National Technical University of Ukraine "Igor Sikorsky Kyiv Polytechnic Institute", MES of Ukraine, Kyiv, 2023. The dissertation is devoted to expanding the functionality of means of monitoring a person's condition during carbon monoxide (CO) intoxication by means of non-invasive registration of the body's physiological parameters. The work developed a method of non-invasive monitoring of a person's condition during CO intoxication through a complex analysis of physiological indicators of the circulatory and respiratory systems, which made it possible to expand the functional capabilities of biomedical information and measurement tools for non-invasive monitoring. The photometric method of non-invasive determination of the content of carboxyhemoglobin (HbCO) and oxyhemoglobin (SaO2) in arterial blood was improved by additional generation of radiation and registration of light absorption spectra at a wavelength of λ=568 nm, which ensured selectivity and allowed to increase the accuracy of SaO2 measurement and the reliability of HbCO monitoring. The principles of the analysis of photoplethysmographic signals by determining the duration of cardiointervals were substantiated, which made it possible to determine the presence of extrasystole, tachycardia and bradycardia in the work of the heart. Keywords: carbon monoxide, carboxyhemoglobin, diagnosis, health care, heart, medical devices, monitoring, oxyhemoglobin, poisoning, respiration, toxic gases.