An Impedance Lung Volume Measurement Method Based on Information Fusion

Abstract

The invention discloses an impedance lung volume measurement method based on information fusion. The method comprises the following steps: S1, acquiring electrical impedance signals of the left lung and the right lung of a subject; S2, performing analog-digital conversion on the acquired electrical impedance signals of the left lung and the right lung respectively to obtain the electrical impedance digital signals of the left lung and the right lung of the subject; S3, extracting the reference feature values of the electrical impedance digital signals of the left lung and the right lung respectively; S4, measuring impedance lung volume of the subject according to the reference feature values. By adopting the impedance lung volume measurement method based on the information fusion, the impedance information of the whole lung is obtained accurately, and the robustness of the measurement of the impedance lung volume is enhanced.

Description

technical field [0001] The invention relates to the technical field of medical monitoring, in particular to an information fusion-based impedance lung volume measurement method. Background technique [0002] In recent years, non-invasive lung volume measurement methods have developed rapidly, including Impedance Plethysmography (IP) technology, Respiratory Inductive Plethysmography (RIP), and Various magnetic, capacitive and optical methods. In general, existing devices that directly measure lung volume (eg, Biopac, spirometer) are commonly used in hospitals and medical centers as the gold standard for respiratory monitoring. However, these devices require the use of a breathing mask, causing user discomfort and insomnia. In fact, measurements of thoracic surface motion can be used to estimate lung volume changes. However, RIP technology is more susceptible to motion artifacts than IP because the chest strap used is easy to fall off; electrical impedance imaging technolog...

AI Technical Summary

Problems solved by technology

However, RIP technology is more susceptible to motion artifacts than IP because the chest strap used is easy to fall off; electrical impedance imaging technology needs to fix a large number of electrodes on the user's chest, which can easily cause discomfort

[0003] The current research on lung volume measurement mainly focuses on improving the accuracy of impedance lung volume measurement by improving the filter performance or electrode configuration, etc., and the technical scheme of the research has the defect of poor anti-interference

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