Оптико-електронний прилад діагностування стану периферичного кровообігу з підвищеною достовірністю

Abstract

Dissertation is devoted to science problems of development and research of optoelectronic device for diagnostics of the state peripheral blood circulation with increased validity, models enhancement of optical radiation diffusion in biological tissues and methods for treatment of photoplethysmographycal information. The important task of perfection optoelectronic device for diagnostics of the peripheral blood circulation state is solved in dissertation. The task consists in the increase of diagnostics validity. Physicomathematical model of optical radiation diffusion in biological tissues is improved. It allows to take into account the change of optical radiation intensity depending on the corner of optical sensor establishment, thickness of biological tissues and extinction coefficient. The practical value of work consists in offering an algorithm and program of photoplethysmographycal information treatment on the basis of Fourier-transformation, algorithm of base-line noises removal on the basis of wavelet transformation and the simulation of optical radiation diffusion in biological tissues. The structure of optoelectronic device for diagnostics of the state of peripheral blood circulation is improved, by the use of four parallel measurings channels that allows diagnosticating simultaneous four probed points.