Fetal heart rate signal processing method and device thereof
A signal processing and fetal heart rate technology, applied in the measurement of pulse/heart rate, etc., can solve the problems of doubling, halving, poor stability performance, etc., achieve good stability, facilitate diagnosis, and reduce misjudgment of fetal heartbeat Effect
Active Publication Date: 2011-05-11
EDAN INSTR
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At present, the existing methods are to autocorrelate the signal in the time domain to obtain the fetal heart rate. Although it meets the clinical requirements in term
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The invention provides a fetal heart rate signal processing method and a device thereof. The time-domain process and the frequent-domain process are combined, so as to obtain a fetal heart rate processing method which can satisfy the real-time requirements and has better stability; and the processing method is used on a fetal monitor, so as to lead the obtained intermediate monitoring data to be more accurate. The processing method can correct some special intermediate monitoring data produced in the monitoring process, so as to lead doctors to use the corrected intermediate monitoring data as a diagnosing reference, thus greatly reducing the occurrence of errors in judging the fetal heart.
Description
technical field [0001] The invention relates to the field of fetal heart rate signal processing, in particular to a fetal heart rate signal processing method and device. Background technique [0002] The detection of fetal heart rate is of great significance in clinical diagnosis, especially the monitoring of fetal heart rate in the perinatal period, which is helpful to improve the quality of fetal delivery and reduce the rate of fetal malformation and mortality. There are roughly two ways to detect fetal heart rate. One is the direct method. This method is to use the spiral electrode to hook the fetal scalp to obtain the heart rate signal. The other is the indirect method, and the ultrasonic Doppler heart rate detection method is the most used at present, which extracts the ultrasonic Doppler frequency by using the principle of echo and Doppler. Shifting the signal to obtain the fetal heart envelope signal, a method to obtain the fetal heart rate has the advantages of non...
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Inventor 刘冰陈吴笋陈德伟
Owner EDAN INSTR
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