| 摘要 |
FIELD: medical engineering. SUBSTANCE: device has series-connected signal generator 1, amplifier 2, n parallel-connected filters 3, as well as adder 5, frequency and amplitude detectors 7, 8, indicator 11, n controlled attenuators 14 and converters 12, sound source 6, analysis unit 9, and control unit 10. Signal which converts information of arterial pressure variation to control signal of attenuator 14 is formed in control unit 4. Process is continued till the moment optimal signal is selected when measured pressure value is as close to normal value as possible. Effect is intensified by additional increase in optimal signal. EFFECT: more accurate prediction. 2 dwga
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