METHOD FOR NONINVASIVE DETERMINATION OF BIOPHYSICAL SIGNALS Russian patent published in 2021 - IPC A61B5/00 

FIELD: medicine.

SUBSTANCE: invention relates to medicine, more specifically, to functional diagnostics, and can be used for noninvasive determination of biophysical parameters of human diseases based on information analysis of biophysical signals. Consecutive cardiac cycles of cardiac signals are recorded, values of the parameters are calculated for each cardiac cycle, including the amplitude ranges of the systolic segment and the time intervals between characteristic peaks of cardiac signals. The resulting set of values of the parameters of consecutive cardiac cycles is encoded with symbols. A frequency vector of three-termed code combinations is determined for each cardiac signal by ranking thereof based on frequency of occurrence. The frequency vector is compared with the reference codes of diseases from the database, and the probability of presence of a disease is estimated. Consecutive cardiac cycles are therein recorded using a single electrocardiogram lead, a projection of a seismocardiogram on an axis directed perpendicular to the surface of the chest of the patient, and a projection of a gyrocardiogram on an axis directed to the head of the patient, time-syncronised.

EFFECT: method simplifies hardware implementation and use thereof when recording consecutive cardiac signals due to the location of sensors at a single point located at the lower sternal border of the patient.

3 cl, 3 dwg, 3 tbl