Doppler ultrasonographic device and Doppler ultrasonographic method for detection of fetal heart signals

Abstract

The invention belongs to the field of fetal heart monitoring and provides a Doppler ultrasonographic device and a Doppler ultrasonographic method for detection of fetal heart signals. The device comprises a quincunx ultrasonic sensor probe, a fetal heart signal acquisition module and a signal parameter processing module. The quincunx ultrasonic sensor probe comprises a first wafer and a plurality of second wafers surrounding the first wafer; the first wafer is used for transmitting and receiving ultrasonic signals in fetal heart searching and detecting; the second wafers are used for transmitting and receiving ultrasonic signals in fetal heart searching. The fetal heart signal acquisition module is connected with the quincunx ultrasonic sensor probe and the signal parameter processing module and used for acquiring signals received by the first wafer and the second wafers. The signal parameter processing module is used for calculating, judging and comparing the acquired signals to obtain fetal heart signals. The Doppler ultrasonographic device has the advantages that due to the specific probe structure, the fetal heart signals can be detected quickly and accurately, and safety and convenience in use are achieved.

Description

technical field [0001] The invention relates to the field of fetal heart monitoring, in particular to a Doppler ultrasonic device and method for detecting fetal heart signals. Background technique [0002] Doppler ultrasound fetal heart rate instrument has become a commonly used way of home fetal monitoring because of its convenience and safety. Ultrasonic Doppler fetal heart rate monitor uses the principle of Doppler characteristics of sound, that is, the frequency of sound will shift when it encounters the echo reflected by a moving object, and the offset is proportional to the speed of the moving object. [0003] In related technologies, the probe of the ultrasonic Doppler fetal instrument transmits ultrasonic waves with a fixed frequency and a certain angle to the heart of the fetus in the mother's body, and the emitted ultrasonic waves will be reflected when encountering an interface. Since the beating of the fetal heart is periodic, the reflected electrical signal als...

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a Doppler ultrasonic device for detecting fetal heart signals, so as to solve the technical problem that it is difficult to accurately find the position of fetal heart rate in the prior art.

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