Device and method for automatically identifying fetal heart rate baseline

Abstract

The invention relates to the field of treatment of biological and medical signals, in particular to a device for automatically identifying a fetal heart rate baseline and a method for realizing the device. The method provided by the invention comprises the steps of: collecting fetal heart rate data within a preset time length to obtain a fetal heart rate data series h'(n); preprocessing the collected fetal heart rate data series h'(n) to obtain respective fetal heart rate data series corresponding to the preprocessing process; selecting a main dominant peak value according to the frequency distribution of the respective fetal heart rate data series corresponding to the preprocessing process; and performing dynamic baseline identification according to the respective fetal heart rate data series corresponding to the preprocessing process and the main dominant peak value to obtain, display and print a dynamic baseline. According to the technical scheme of the device provided by the invention, the influence of regular changes of fetal heart rate on baseline solutions can be effectively avoided, and the baseline level and the changes thereof of a fetus under different conditions can beaccurately reflected.

Description

technical field [0001] The invention relates to the field of biomedical signal processing, in particular to an automatic identification device for a fetal heart rate baseline and a method for realizing the device. Background technique [0002] The baseline fetal heart rate is an important indicator that reflects the developmental state of the fetal central nervous system and indicates the safety of the fetus in utero. It is generally believed that the baseline fetal heart rate will gradually decrease with the increase of gestational age, and its normal range is between 110bpm and 160bpm. If the baseline is too high or too low, attention should be paid to it. The cause of the abnormality must be found out immediately to judge whether the abnormality has clinical significance and provide a basis for taking intervention measures. For example, during pregnancy, if the baseline drops below 100bpm, congenital heart disease should be considered; while during childbirth, abnormal b...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the deficiencies of the existing fetal heart rate baseline identification method, which is poor in accuracy and variability, and to propose an automatic detection method for the fetal heart rate dynamic baseline. The identification device and method, so as to obtain the dynamic baseline of fetal heart rate, so that the fetal heart rate baseline can change correspondingly according to the different fetal states

Images