INFANT BLOOD OXYGEN SATURATION MONITORING METHOD AND SMART MONITORING DEVICE

An infant blood oxygen saturation monitoring method and a smart monitoring device. Said method comprises the following steps: A. performing a reflection test on soles of an infant by means of red light λ1 and infrared light λ2, so as to obtain blood flow signals IMAX λ1 and IMAX λ2 at the soles of the infant; B. analyzing the blood flow signals to obtain alternating current components IAC λ1 and IAC λ2 of the blood flow signals; C. analyzing changes in light intensity of the red light and the infrared light, and the relationship between the blood flow signals and the blood oxygen saturation, and calculating test constants As, Bs and CS; and D. combining As, Bs and CS with parameters IMAX λ1, IMAX λ2, IAC λ1 and IAC λ2, and obtaining the blood oxygen saturation of the infant according to a calculation formula (X). By acquiring blood flow signals at the soles of an infant and measuring the blood oxygen saturation of the infant by means of formula conversion, discomfort of the infant during monitoring can be red