METHOD OF DETERMINATION OF FUNCTIONAL STATE OF HUMAN CARDIAC SYSTEM Russian patent published in 2007 - IPC A61B5/02 

FIELD: medicine; cardiology.

SUBSTANCE: phonogram of systole f(t) is registered and subject to analog-to-digital transform. Massive f(t_n) is formed and variable component h(t_n)of phonogram. Ancillary massive b(t_n) is formed which massive has sign-constant values of massive h(t_n). Massive b(t_n) is subject to Fourier transform and spectral massive g(ω_n) is formed as a result of the transform. Average meaning g- of spectral massive g(ω_n) is determined. Minimal value of frequency ω_n is found as well as corresponding amplitude g(ω_n), for which values the following conditions are met: ω>Hz, g(ω_m-1)<g(ω_m)>g(ω_m+1), and g(ω_m)>Lg, where L>1. Diagnostics of state of heart activity is performed from relation of amplitudes g(kω_m), where k<10 is number of spectral amplitudes required for diagnostics.

EFFECT: improved precision; improved truth of results.

4 dwg, 4 dwg