ELECTRIC-CARDIO SIGNAL PRE-PROCESSOR Russian patent published in 2013 - IPC A61B5/402 

FIELD: medicine.

SUBSTANCE: invention relates to medical equipment. An electric-cardio signal (ECS) pre-processor comprises an amplification unit (1), an analogue-to-digital unit (2) an input of which is connected to an output of the amplification unit (1), a low-pass filter unit (10). The device comprises an ECS count carrier formation unit (3), first (4) and second (5) delay unit, as well as a third (6) delay unit, a current network noise isolation unit (8), an isoline drift isolation unit (7), a net signal formation unit (9) connected to the output of the analogue-to-digital unit (2). The output of the ECS count carrier formation unit (3) is connected to a first input of the isoline drift isolation unit (7) and to a firs input of the current network noise isolation unit (8). An input of the first delay unit (4) is connected to a first input of the net signal formation unit (9), an input of the second delay unit (5) is connected to a second input of the isoline drift isolation unit (7) and a second input of the current network noise isolation unit (8). An output of the isoline drift isolation unit (7) is connected to a second input of the net signal formation unit (9). An output of the current network noise isolation unit (8) is connected to an output of the third delay unit (6) an output of which is connected to a third input of the net signal formation unit (9). An output of the net signal formation unit (9) is connected to an input of the low-pass filter unit (10) an output of which is an output of the whole device.

EFFECT: using the invention enables higher noise resistance of the analysed ECS keeping thereby all the ECS information components undistorted.

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