METHOD FOR DETECTING FUNCTIONAL STATE OF HUMAN CARDIO-VASCULAR SYSTEM (VARIANTS) Russian patent published in 2007 - IPC A61B5/04 A61B5/452 

FIELD: medicine, cardiology.

SUBSTANCE: it is necessary to register a phonogram of heart rate f(t) to fulfill its analog-digital transformation, form the massive f(t_n), isolate a phonogram's variable constituent h(t_n), form an additional massive b(t_n) that contains sign-constant values of the massive h(t_n), carry out spectral transformation of additional massive b(t_n) and form the obtained massive g(ω_n), perform frequency filtration of the massive g(ω_n) by marking the signal within the interval of 0<ω_n< Ω, where 20 Hz< Ω<100 Hz, perform reverse spectral transformation of the massive and diagnostics of cardiac activity state should be fulfilled by formula obtained as a result of this transformation of the ratio or it is necessary to isolate the phonogram's variable constituent h(t), determine additional function b(t) that contains sign-constant values of the function h(t), fulfill neutralization of function values b(t) according to time intervals 10 msec<▵t<50 msec, and diagnostics of cardiac activity state should be conducted by the formula obtained as a result of this neutralization of the ratio Both variants of the method provide increased accuracy and significance of the results in detecting functional state of human cardio-vascular system.

EFFECT: higher efficiency of detection.

6 cl, 3 dwg