METHOD OF REMOTE CONTROL OF ORGANISM'S HEART ACTIVITY PARAMETERS Russian patent published in 2015 - IPC A61B5/02 

FIELD: medicine.

SUBSTANCE: invention relates to medical equipment and can be applied for remote control of organism's heart activity parameters. Method consists in emission of electromagnetic SHF-signal, reception of interference signal, which represents sum of incident and reflected electromagnetic radiation, determination of organism's vital activity parameters. Emitted electromagnetic SHF-signal is directed onto area of brachial artery location, interference signal is presented in form U(t)=cos(θ+(4π/λ)f(t)), where t is time, θ is initial phase of signal, λ is wavelength of emitted electromagnetic SHF-signal, f(t) is function of brachial artery movement, after which introduced is function S(t), such, that its spectrum with accuracy to constant multiplier corresponds to spectrum of brachial artery movement function: $$S\left(t\right)=\left(dU/dt\right)/\sqrt{1-U^2\left(t\right)}=\left(4\pi /\lambda \right){\displaystyle \underset{-\infty }{\overset{\infty }{\int }}{\displaystyle \underset{-\infty }{\overset{\infty }{\int }}\left(1/\sqrt{a}\right)C\left(a,b\right){\psi }_2\left(\left(t-b\right)/a\right)\left(dadb/a^2\right)}},$$ where C(a,b) are coefficients of wavelet-decomposition of f(t) function by basis ψ₁, determined by means of ratio: $$C\left(a,b\right)=\left(1/\sqrt{a}\right){\displaystyle \underset{-\infty }{\overset{\infty }{\int }}S\left(t\right){\psi }_2\left(\left(t-b\right)/a\right)dt},$$ a is scaling factor, b is shear factor, ψ₂ is derivative of basic wavelet-function ψ₁; after which function of brachial artery movement is recovered: $$f\left(t\right)={\displaystyle \underset{-\infty }{\overset{\infty }{\int }}{\displaystyle \underset{-\infty }{\overset{\infty }{\int }}\left(1/\sqrt{a}\right)C\left(a,b\right){\psi }_1\left(\left(t-b\right)/a\right)\left(dadb/a^2\right)}},$$ and parameters of heart rhythm variability are calculated by function of brachial artery movement: Mo is the most frequently occurring value of R-R intervals, AMo is part of cardiointervals corresponding to Mo value, dx is difference between duration of the longest and the shortest cardiointervals, IV=AMo/(2∗Mo∗dx) is index of regulatory system voltage, IVE=Amo/dx is index of vegetative equilibrium, VRI=1/(Mo∗dx) is vegetative rhythm index, IRPA= Amo/Mo is index of regulation process adequacy.

EFFECT: application of invention makes it possible to reduce errors of measurement due to elimination of respiration impact from registered signal.

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