DEVICE OF NON-INVASIVE DIAGNOSTICS OF FETUS CARDIAC ACTIVITY AND METHODS OF ITS APPLICATION Russian patent published in 2010 - IPC A61B5/444 A61B8/02 

FIELD: medicine.

SUBSTANCE: inventions relate to medicine, namely to device and method for diagnostics of fetus state during pregnancy. Device contains successively connected electrodes for registering abdominal ECG, ADC, filter and amplifier, whose outlet is connected with unit of second derivative calculation and first inlet of unit of abdominal ECG memory, display device and sensor of one-dimension ultra-sound signal. Amplifier outlet is additionally connected with first inlet of display device and first inlet of unit of measurement of cardiointerval duration, and sensor of one-dimension ultra-sound signal is connected with first inlet of unit of comparison, whose second inlet is connected with outlet of unit of etalon ultra-sound signals memory. Outlet of unit of comparison is connected with second inlet of display device, second inlet of unit of measurement of cardiointerval duration and first inlet of unit of accurate measurement of heartbeat rate, outlet of calculation of second derivative being connected with second inlet of unit of accurate measurement of heartbeat rate, outlet of unit of measurement of cardiointerval duration is connected with third inlet of unit of accurate measurement of heartbeat rate, outlet of display device is connected with first inlet of analysis device, whose second inlet is connected with outlet of unit of abdominal ECG memory, and two outlets of unit of accurate measurement of heartbeat rate are connected with inlets of display device. Method of cardiodiagnostics of prenatal state of fetus includes registration of abdominal ECG, rhythmograms of fetus and pregnant woman, analogue-digital conversion, filtration and amplification of fetus ECG signals, calculation of amplitude of teeth and cardiocomplex intervals. By means of ultra-sound signal zone of fetus location, characterised by two-, three-peak complexes of ultra-sound signal testifying to "direct" directing of ultra-sound signal sensor at fetus heart, is localised, ECG electrodes being placed at 10-12 cm distance from sensor.

EFFECT: application of inventions allows to increase reliability and efficiency of prenatal cardiodiagnostics of fetus and pregnant woman.

3 cl, 10 dwg