DEVICE FOR DETERMINING FETUS STATE DURING PREGNANCY PERIOD Russian patent published in 1998 - IPC

Abstract RU 2103919 C1

FIELD: medical engineering. SUBSTANCE: device has ultrasonic converter, two power amplifiers, switch, high frequency amplifier which outlet is connected in series to phase detector, two low frequency amplifier, key, low frequency filter, high frequency program-controlled filter, generator of quartz type, control signal shaper, attenuator variable in programmed mode, program-controlled amplifier analog-to-digital converter, controller, acoustic emitter, interface unit and information processing unit. EFFECT: high level measurement accuracy; excluded noise factor influence. 2 cl, 3 dwg

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RU 2 103 919 C1

Authors

Demidov V.N.

Makhan'Kov V.E.

Rozenfel'D B.E.

Smirnov A.S.

Dates

1998-02-10—Published

1995-03-10—Filed