DEVICE FOR EVALUATING ARTERIAL ELASTICITY Russian patent published in 2012 - IPC A61B5/02 A61B5/295 A61B5/456 

FIELD: medicine.

SUBSTANCE: device for evaluating arterial elasticity comprises an infrared diode 1, a photoelectric receiver 2, a current-to-voltage converter 3, a voltage amplifier 4, a high-pass filter 5, an analogue-to-digital converter 9, a microcontroller 10, as well as additionally contains ECG sensors 6, ECG signal amplifier 7, an R-wave selector 8, two Fourier-transform processors 11 and 12, a subtracter 13. The ECG sensors are connected to outputs of the ECG signal amplifier; an output of the ECG signal amplifier is connected to an input of the R-wave selector; an output of the R-wave selector is connected to a second output of the analogue-to-digital converter. An output of the high-pass filter is connected to a first input of the analogue-to-digital converter; an output of the analogue-to-digital converter is connected to an input of the microcontroller; a first output of the microcontroller is connected to an input of the first Fourier-transform processor; a second output of the microcontroller is connected to an input of the second Fourier-transform processor; an input of the first Fourier-transform processor is connected to a first input of the subtracter; an output of the second Fourier-transform processor is connected to a second input of the subtracter.

EFFECT: use of the invention enables higher accuracy and reliability of evaluating arterial elasticity.

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