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Fetal heart rate signal processing method and device thereof

A fetal heart rate and signal technology, applied in the field of fetal heart rate signal processing methods and devices, can solve the problems of halving, poor stability performance, doubling, etc., achieve good stability, reduce fetal heartbeat misjudgment, and facilitate diagnosis Effect

Active Publication Date: 2012-05-23
EDAN INSTR
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Problems solved by technology

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 terms of real-time performance, it has poor performance in terms of stability. In clinical practice, when the signal is not In good times, halving and doubling often occur

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  • Fetal heart rate signal processing method and device thereof
  • Fetal heart rate signal processing method and device thereof
  • Fetal heart rate signal processing method and device thereof

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Abstract

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] Fetal heart rate detection is of great significance in clinical diagnosis, especially the monitoring of perinatal fetal heart rate, which helps to improve the quality of fetal delivery and reduce the rate of fetal malformations and mortality. There are roughly two ways to detect fetal heart rate. One is the direct method. This method uses a spiral electrode to hook the fetal scalp to obtain the heart rate signal. It is invasive and has to wait until the uterine orifice is opened to a certain extent after the pregnant woman breaks the membrane. The other is the indirect method, the most commonly used is the ultrasonic Doppler heart rate detection method, which uses the echo and Doppler principle to extract the frequency of the ultrasonic Doppler. The signal is shifted to obtain the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B8/02
Inventor 刘冰陈吴笋陈德伟
Owner EDAN INSTR
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