Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Fetus electrocardiosignal online extraction system and method

An ECG signal extraction device technology, applied in the field of biomedical signal processing, can solve the problems of unable to reflect the time-varying characteristics of fetal ECG signals in time

Active Publication Date: 2020-10-16
SUN YAT SEN UNIV
View PDF12 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, there are some extraction methods of fetal ECG signals, such as adaptive filtering method, methods based on singular value decomposition, principal component analysis and independent component analysis, etc., but there are still shortcomings that most of the methods work in an offline mode and cannot be processed in a timely manner. Reflecting the time-varying characteristics of fetal ECG signals

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Fetus electrocardiosignal online extraction system and method
  • Fetus electrocardiosignal online extraction system and method
  • Fetus electrocardiosignal online extraction system and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0088] A method for extracting fetal electrocardiogram signals;

[0089] like figure 1 shown, including the following steps:

[0090] Step S1: collecting the abdominal signal of the pregnant woman; it should be understood that the abdominal signal of the pregnant woman refers to the abdominal mixed signal including the abdominal mixed signal of the maternal ECG signal and the fetal ECG signal. At the same time, it should also be understood that the abdominal signal acquisition of the pregnant woman may be single-channel acquisition or multi-channel acquisition.

[0091] Step S2: Segment the abdominal signal of the pregnant woman while collecting the abdominal signal of the pregnant woman to obtain the current window signal, and find the R wave position of the maternal ECG signal, such as image 3 As shown; it should be understood that in this embodiment, while collecting the abdominal signal of the pregnant woman, the window signal can be segmented at the same time, so as to...

Embodiment 2

[0131] A kind of fetal ECG signal online extraction system, such as Figure 9 shown, including:

[0132] The collection module is used to collect abdominal signals of pregnant women;

[0133] The window signal segmentation module is used to segment the abdominal signal of the pregnant woman to obtain the current window signal, and find the R wave position of the maternal ECG signal;

[0134]The signal segment segmentation module is used for segmenting the current window signal to obtain several signal segments according to the R wave position of the mother's ECG signal;

[0135] Maternal electrocardiographic signal template construction module, used for reconstructing the maternal electrocardiographic signal template belonging to the present window signal according to the signal segment in the present window signal;

[0136] The fetal ECG component calculation module is used to calculate the fetal ECG component in the next window signal according to the maternal ECG signal t...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a fetus electrocardiosignal online extraction system and method. The method comprises the steps: firstly collecting an abdomen signal of a pregnant woman; segmenting the abdomen signal of the pregnant woman to obtain a current window signal, and finding the R-wave position of a maternal electrocardiosignal; then, according to the R-wave position of the maternal electrocardiosignal, segmenting the current window signal to obtain a plurality of signal segments; next, reconstructing a maternal electrocardiosignal template belonging to the current window signal according tothe signal segments in the current window signal; according to the maternal electrocardiosignal template of the current window signal, performing calculating to obtain the fetal electrocardiogram component in a next window signal; and finally, repeating the steps until fetal electrocardiogram components of remaining signal windows except the first signal window are obtained. The method comprisesa data preprocessing method, maternal electrocardiogram component reconstruction and fetal electrocardiogram component extraction. According to the technical scheme, the fetal electrocardiosignal canbe accurately extracted online.

Description

technical field [0001] The invention belongs to the technical field of biomedical signal processing, and in particular relates to an online fetal electrocardiographic signal extraction device and method. Background technique [0002] At present, there are three main types of clinical monitoring of fetal growth and development: fetal heart sound monitoring, cardiac monitoring and ECG monitoring. Their functions are to detect abnormalities in the process of fetal growth and development early by monitoring fetal heart activity during pregnancy. Fetal ECG signal is the source signal of fetal heart activity. Compared with heart sound and heartbeat signal, it is the physiological signal that can best reflect the whole picture of fetal heart signal. The online extraction of fetal ECG signals can reflect the biophysical activity of the fetus in real time, which is of great significance. [0003] The methods for obtaining fetal heart rate signals mainly include scalp electrode metho...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/0452A61B5/0444A61B5/00
CPCA61B5/7235A61B5/7253A61B2503/02
Inventor 郭雪梅廖立娟钟伟
Owner SUN YAT SEN UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com