Processing method for simultaneously acquiring fetal heart rate and fetal heart waveform

Abstract

The invention relates to a processing method for simultaneously acquiring fetal heart rate and fetal heart waveform, which comprises the following steps of: starting a fetal heart rate instrument, transmitting an excitation signal to an ultrasonic transduction plate by an exciting circuit, transmitting ultrasonic wave by the ultrasonic transduction plate, and converting the reflected heartbeat simulation signals into electric signals; demodulating, filtering and amplifying the electric signals to obtain fetal heart signals; simulating and amplifying the fetal heart signals and dividing the fetal heart signals into two paths, directly transmitting one path of fetal heart signals to a single chip to perform AD conversion, and digitally filtering the fetal heart signals to obtain heartbeat waveforms and bar charts; and shaping the other path of fetal heart signals through a comparator, capturing the fetal heart signals, and obtaining a heart rate value by calculation and filtration. The method can detect the fetal heart rate to obtain the heart rate change condition, can acquire the heartbeat waveforms and the bar charts for indicating the intensity of heartbeat, has alarm function, can improve the measurement precision and display definition of the fetal heart rate instrument, and enhances the intuition and convenience of the operation.

Description

technical field [0001] The invention relates to the field of fetal heart rate monitoring, in particular to a processing method for simultaneously obtaining fetal heart rate and fetal heart waveform. Background technique [0002] Fetal heart rate inspection is a necessary item in the routine prenatal examination in the hospital. Timely and accurate monitoring of fetal heart rate is an important measure to ensure the health of pregnant women and fetuses. With more and more emphasis on fetal heart rate detection, home fetal heart monitors have gradually entered the market, which is convenient for pregnant women to keep abreast of fetal conditions at home. If abnormalities are found, corresponding measures can be taken in time to ensure the safety of mothers and babies. [0003] At present, fetal heart rate monitoring is mostly carried out through fetal heart rate monitors, and the existing fetal heart rate monitors can only perform simple signal conversion processing through ul...

AI Technical Summary

Problems solved by technology

[0003] At present, fetal heart rate monitoring is mostly carried out through fetal heart rate monitors, and the existing fetal heart rate monitors can only perform simple signal conversion processing through ultrasonic sensor probes to obtain corresponding heart rate values, which cannot reflect the strength and waveform of heartbeats. When the fetal heartbeat is abnormal, it cannot be detected in time, and the display results are not eye-catching enough, so it is easy to ignore the abnormal fetal heartbeat signal, delaying the disease, and failing to achieve the best use effect

[0004] This shows that the processing method of above-mentioned existing fetal heart rate meter obviously still has inconvenience and defect, and urgently needs to be further improved

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