Portable multifetal electrocardiogram monitor and monitoring method thereof

Abstract

The invention relates to a portable multifetal electrocardiogram monitor and a monitoring method thereof, and belongs to the field of medical equipment. The device comprises a bio-electrical sensor, a signal amplifying and filtering device, an A / D converter, an embedded micro-controller, a memory, an LCD display, a rechargeable battery, a clock frequency module, a Bluetooth and an NFC module. The device detection method comprises the following steps: collecting bio-electrical signals from abdomen of a pregnant woman; filtering out electromyographic signal and noise interference by virtue of a self-adaptive filtering algorithm; extracting out MECG signals by virtue of a wavelet algorithm; for FECGErr signals, adding white Gaussian noise, and implementing ensemble empirical mode decomposition; presenting decomposed IMF signals by X, implementing singular value decomposition on the X, and calculating out k pieces of singular values of the matrix X; sorting the k pieces of the singular values; and predicting the number of fetuses. According to the electrocardiogram monitor provided by the invention, maternal-fetal electrocardiogram signal separation is implemented just by virtue of one path of signals from abdominal wall of the pregnant woman; the electrocardiogram monitor can be applied for the first time after five gestational weeks of the pregnant woman; and the electrocardiogram monitor can be used for predicting the number of the fetuses.

Description

technical field [0001] The invention belongs to the field of medical equipment monitoring, and relates to a portable multifetal electrocardiogram monitor and a monitoring method thereof. Background technique [0002] Around the world, more than 3 million fetuses die during pregnancy each year, and more than 4 million babies die within the first four weeks after birth. In China alone, tens of millions of pregnant women and about 20 million newborns are born every year. In 2002, the infant mortality rate in Beijing alone was about 0.59%. In 2007, the perinatal mortality rate in Zhejiang Province was about 1.174%. In poverty-stricken areas, the average neonatal mortality rate is even higher, about 3.976%. It can be seen that in order to improve the quality and survival rate of newborns, early detection and early prevention are very important. The main content of prenatal examination is fetal health monitoring. Fetal health monitoring can detect abnormal conditions such as hea...

AI Technical Summary

Problems solved by technology

And the current fetal ECG signal extraction algorithm does not consider the situation of multiple births

Therefore, the current fetal heart rate monitors are only suitable for use in hospitals, and are not suitable for portable operating environments at home.

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