HEART BEAT PICKUP Russian patent published in 2001 - IPC

FIELD: medical engineering. SUBSTANCE: device has casing with electrodes, the casing being connected to signal preprocessing unit, and comparator which first output is connected to indicator unit. The device additionally has signal absolute value unit, peak detector and low frequency filter. The signal absolute value unit is mounted between the signal preprocessor unit and low frequency filter. The peak detector has two inputs and outputs from which the first input is connected to the low frequency filter output and the second one to the second comparator output which first input is connected to peak detector output and the second input is connected to the low frequency filter. The signal preprocessor unit is designed as differential amplifier serving as unit input and additional low-frequency filter being unit output. EFFECT: automated control with enhanced noise immunity. 2 cl, 1 dwg