Wearable passive fetus sound monitoring system and device based on piezoelectric technology

Abstract

The invention relates to a wearable passive fetus sound monitoring system and device based on a piezoelectric technology. The wearable passive fetus sound monitoring system comprises a passive signal perception module, a processing module, a communication module and a display module, wherein the passive signal perception module perceives each vital sign signal of a fetus and a pregnant woman, the perceived vital sign signals are processed in real time by virtue of the processing module, the display module receives and displays a curve of each vital sign signal of the fetus and the pregnant woman, the passive signal perception module is connected with the processing module, and the processing module is connected with the display module by virtue of the communication module. Vital signs of the pregnant woman and the fetus are monitored in real time in a 24-hour way, vital sign signal fluctuation curves of the fetus and the pregnant woman are compared and analyzed, and a multifunctional alarm is carried out during abnormality; meanwhile, the pregnant woman can consult a big data platform online doctor by virtue of one key if having any questions or problems; the abnormality can be beneficially and timely found, and measures can be timely taken; and the sensitivity is high, the measured data is precise, a passive mode is safe and nonradiative, and convenient use and good experience feeling are realized.

Description

technical field [0001] The invention belongs to the technical field of fetal sound monitoring, in particular to a wearable passive passive fetal sound monitoring system and device based on piezoelectric technology. Background technique [0002] Fetal sound monitoring can monitor the vital signs of the fetus and pregnant women through fetal sound monitoring, and then judge the mental and physical health status of the fetus and pregnant women; fetal heart rate, fetal body movement, maternal heart rate, and maternal respiratory rate are several important indicators of fetal sound monitoring . Too much fetal movement or too little fetal movement may be the manifestation of fetal abnormality. If it moves suddenly and frequently, it may be a warning signal of external impact or placental separation. At this time, the fetus will have temporary intense activities, and it will not take long Quiet, the fetal movement is significantly reduced, or even no fetal movement; if the fetal m...

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Problems solved by technology

[0003] At present, there are two fetal sound monitoring methods. The first one is to use the hospital’s Doppler fetal heart rate monitor or ECG monitor for monitoring. It is used at home, and it is inconvenient to operate, unable to monitor 24 hours in real time, and the price is high; the second is to use a small Doppler monitor for detection. The Doppler probe is inserted into the strap, and the Doppler probe is moved to the position where the fetal heart sound is clearest, and the fetal heart rate curve is obtained by continuous monitoring for 20 minutes, but it adopts the active principle, and long-term use is harmful to the human body Radiation, potential safety hazards, 24-hour real-time monitoring, low accuracy, inconvenient operation, and poor user experience

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