A fetal health monitor based on multi-channel passive signal acquisition

A signal collection and health monitoring technology, applied in the field of medical monitoring, can solve the problems of inaccurately reflecting the health status of the fetus, large monitoring errors, and easy to receive interference, etc., achieve high-precision fetal heart rate monitoring, improve accuracy, and eliminate interference Effect

CN112869724BActive Publication Date: 2022-04-22XI AN JIAOTONG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2022-04-22

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Abstract

The invention discloses a fetal health monitor based on multi-channel passive signal collection, a reference signal collection device for collecting reference signals generated by pregnant women's heartbeat and breathing; a fetal signal collection device for collecting fetal signals; a hand-held control host computer for calculating Obtain the fetal heart rate; extract the reference signal S 0 According to the time-frequency characteristics, a band-pass filter is established to remove the interference signals generated by the pregnant woman's heartbeat and respiration, the threshold filtering method is used to remove the interference signals caused by the pregnant woman's physical activities in the fetal signal, and the fetal movement characteristics are extracted by cross-correlation analysis signal and calculate the number of fetal movements; realize the storage, filtering, feature extraction and analysis of reference signals and fetal signals, and display the monitored fetal heart rate and fetal movement times. The present invention can be worn on the body of a pregnant woman in a portable manner to realize high-precision fetal heart rate monitoring and fetal movement counting, and the pregnant woman can know the health status of the fetus at any time.
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Description

technical field

[0001] The invention belongs to the technical field of medical monitoring, and in particular relates to a fetal health monitor based on multi-channel passive acquisition signals. Background technique

[0002] With the development of modern society, more and more attention has been paid to population and fertility issues. It has always been everyone's relentless pursuit to reduce the risk of childbirth and improve the healthy birth rate of fetuses. With the rapid development of electronic information technology and the leapfrog progress of sensor technology, more and more researchers are trying to use MEMS and other new sensors to carry out monitoring research on fetal health during pregnancy. Fetal heart rate and fetal movement are important vital signs of the fetus, and they are also important object of monitoring.

[0003] The fetal heart rate reflects the activity of the fetal heart, which is regulated by the heart's own rhythm, central nervous system and...

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Embodiment Construction

[0054] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0055] In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediar...