RHEOPLETISMOGRAPH Russian patent published in 2000 - IPC

FIELD: medical engineering. SUBSTANCE: device has high frequency sinusoid current generator, two current electrodes, potentiometric electrodes, linear detector of mean rectified value, amplifier and differential amplifier of rheopletismogram. Transducer for taking current reading of probing current and compensating channel having differential amplifier and linear detector of mean rectified value being designed like the above mentioned units, and impedance base value compensation unit which output is connected to analog subtracter are additionally included into the design. The second subtracter input is connected to output of the linear detector of mean rectified value, and its output is connected to channel rheopletismogram amplifier input. The differential amplifier and compensating channel detector are common for both rheopletismograph channels. The compensating units and analog subtracters are built into each channel. EFFECT: enhanced accuracy of measurement; improved diagnosis quality. 2 cl, 1 dwg