FIELD: medical engineering. SUBSTANCE: device has input cascade differential amplifier, low and high frequency filters, electronic commutator of input signals receiving electrocardiograph and rheocardiograph signals, unit for adjusting amplification coefficient value, unit for rebuilding amplitude-frequency characteristic of high frequency filter and unit for rebuilding amplitude- frequency characteristic of low frequency filter which inlets are connected to control unit. EFFECT: small weight and size of the device; simplified operation and maintenance service; high sensitivity. 1 dwg
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