Fetal monitoring and pregnant woman sleep breath monitoring system based on pressure sensor array

Abstract

The invention provides a fetal monitoring and pregnant woman sleep breath monitoring system based on a pressure sensor array. According to the monitoring system, the pressure sensor array (4) comprises a plurality of independent pressure sensors (1), unilateral pins of the pressure sensors (1) are connected with each other in the direction of each row, one tandem pin (5) extends out in each row, pins on the other side of the pressure sensors (1) are connected with each other in the direction of each line, and a transverse pin (6) extends out in each line. An integrated circuit processing module (2) comprises a single-pole multi-throw analog switch (7) and an SoC (system on a chip) (10), wherein the SoC (10) comprises an analog-digital converter (8) and a wireless data transmission module (9). The monitoring system can continuously monitor fetal movement conditions for 24 hours without special attention of a pregnant woman, and an internal effective fetal movement algorithm can remove interference including breath and daily action to acquire accurate data.

Description

technical field [0001] The invention relates to the field of bioelectronics intersecting electronics and medicine in which biomedical information collection, signal and information processing are combined with modern electronic technology, and in particular relates to fetal monitoring and sleep breathing monitoring of pregnant women. Background technique [0002] With the development of society, people's concept of marriage and childbirth is gradually changing. In recent years, the delay of women's average pregnancy age and the opening of the second-child policy have led to an increase in the number of elderly and high-risk pregnant women. The advanced age and high risk of pregnant women are the result of adverse fetal outcomes in utero. main reason. Generally speaking, with the increase of pregnant women's age or the persistence of high-risk factors (hyperglycemia during pregnancy, high blood pressure, etc.), the probability of fetal abnormalities in utero also increases. ...

AI Technical Summary

Problems solved by technology

This has the following major defects: 1. The test conditions are harsh, and the pregnant woman needs to lie flat and keep quiet, which makes it impossible to monitor all day; 2. Due to the limited sensor area, it can only monitor the fetal movement signal near the fetal heart rate. It is very likely that effective fetal movement signals in other positions will be missed; 3. The algorithm is too simple, resulting in a lack of accuracy in fetal movement monitoring near the fetal heart rate

The patent with the application number CN201110106695.8 is an array type fetal movement signal and uterine contraction signal monitoring abdominal belt, but its algorithm is simple and the accuracy rate is low

The patent with the application number CN200610022580.X is a portable intelligent fetal movement counter, which focuses on the processing of the collected signals, especially the BP neural network algorithm, but the collected signals are single and cannot completely cover the fluctuations of the pregnant woman's entire abdomen, so it is accurate low rate

And none of the above patents can monitor sleep breathing of pregnant women

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