Method for synchronously storing and playing back fetal heart sound, heartbeat waveform and heart rate values

Abstract

The invention relates to a method for synchronously storing and playing back fetal heart sound, heartbeat waveform and heart rate values. The storing method comprises the following steps of: acquiring fetal heart signals; dividing the signals into three paths, performing AD sampling on the first path to obtain heart sound signals, connecting the second path and an amplifier and then connecting a power amplification circuit, connecting the third path and an amplifying circuit and then dividing the third path into two paths, performing AD sampling on the first path of the third path to obtain heartbeat wave and a bar chart, and capturing, calculating and filtering the other path of the third path by a singlechip to obtain heart rate values after the other path of the third path is shaped by a comparator; and packing and storing the heart sound digital signals, the heartbeat waveform and the heart rate values as a fetal heart sound file. The playback method comprises the following steps of: reading the fetal heart sound file, extracting the heart rate value and heartbeat waveform data after unpacking, drawing the heartbeat waveform and the bar chart according to the waveform data, extracting the heart sound data at the same time and playing back the heart sound data after DA processing. The method can realize synchronous display, storage and playback of the fetal heart sound, the fetal heart rate, the heartbeat waveform and the bar chart, has more intuitive and clearer display, and can control the play of antenatal training music.

Description

technical field [0001] The invention relates to the field of fetal heart detection, in particular to a method for synchronous storage and playback of fetal heart sounds, heartbeat waveforms and heart rate values. Background technique [0002] Ultrasonic Doppler fetal heart rate monitor is an important tool for fetal heart rate detection and fetal monitoring during delivery. During the detection process, the fetal heart sound or fetal heart rate can be recorded in time, which can be used as daily monitoring data to provide a basis for the doctor's diagnosis, and can also be preserved as a souvenir; playing prenatal education music after the detection can also achieve the purpose of prenatal education . [0003] The processing method adopted by the existing ultrasonic Doppler fetal heart rate meter can achieve the effects of detecting fetal heart rate, displaying fetal heart rate, storing fetal heart rate, playing back fetal heart sound, and prenatal education, but it is foun...

AI Technical Summary

Problems solved by technology

[0003] The processing method adopted by the existing ultrasonic Doppler fetal heart rate meter can achieve the effects of detecting fetal heart rate, displaying fetal heart rate, storing fetal heart rate, playing back fetal heart sound, and prenatal education, but it is found that it still exists in actual use. There are several shortcomings, because the best use effect cannot be achieved, and its shortcomings can be summarized as follows:

[0004] 1. With black and white screen or no screen, it can only display the fetal heart rate value or text, etc., but cannot display the heartbeat waveform and bar graph, and cannot intuitively indicate the occurrence and strength of the heartbeat signal;

[0005] 2. It can only store the fetal heart rate, or store the fetal heart sound after AD sampling of the fetal heart sound signal. There is no AD sampling of the signal amplitude, so there is no waveform data, and the fetal heart sound, fetal heart rate and waveform data cannot be stored. synchronous storage;

[0006] 3. During playback, correspondingly, only the stored fetal heart rate or fetal heart sound can be displayed or released, and the playback of fetal heart sound and fetal heart rate and waveform display cannot be performed synchronously;

[0007] 4. When communicating with the PC, only the upload of fetal heart sound files or heart rate data can be uploaded, and the heart rate value cannot be drawn as a trend graph for printout

[0008] This shows that the processing method of above-mentioned existing fetal heart rate instrument obviously still has inconvenience and defect, and urgently needs to be further improved

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