A fetal heart generator

Abstract

The invention proposes a fetal electrocardiogram generator to solve the problems of insufficient and expensive fetal electrocardiographic simulation instruments. The system design scheme is composed of three-lead electrocardiogram of pregnant women and a single-lead fetal electrocardiogram generating circuit. The source of the ECG data is the DaISy database provided by Lieven De Lathauwer. It uses the first 3 channels of data and the data of the 1501st to 2500th points of the fetal ECG extracted by the algorithm plus the loop statement output. This data includes the fetal ECG and Maternal ECG is partially mixed and fully mixed, thereby ensuring representativeness of the data. Adopt the form of unconditional circulation and send it to the digital-analog conversion chip DAC5571 through IIC communication. DAC5571 simulates the output of pregnant women's abdominal ECG signal and fetal ECG signal, and the output voltage amplitude is lower than 3mV through the voltage dividing resistor. The generator adjusts the heart rate and voltage amplitude of the electrocardiogram by lightly touching keys, and the invention can bring great convenience to the researchers of fetal electrocardiogram detection and processing.

Description

technical field [0001] The invention belongs to the field of medical equipment and relates to a novel fetal electrocardiogram generator. Background technique [0002] Perinatal monitoring of pregnant women and fetuses is very important. Through the analysis of fetal ECG signals, many fetal pathological conditions during pregnancy or childbirth can be detected early, and measures can be taken early, so as to prevent neonatal diseases and achieve prenatal and postnatal care. In the study of real-time processing of fetal ECG signal, a fetal ECG signal generator is needed, but the fetal ECG generator on the market is relatively expensive and scarce. [0003] Since it is difficult to collect real-time abdominal ECG data of pregnant women, especially for the real-time verification of the fetal ECG extraction algorithm, it requires long-term cooperation of pregnant women, which brings inconvenience and trouble to pregnant women. If there is a fetal ECG generator, it can provide r...

AI Technical Summary

Problems solved by technology

In the study of real-time processing of fetal ECG signals, fetal ECG signal generators are needed, but the fetal ECG generators on the market are relatively expensive and scarce

[0003] Because it is difficult to collect real-time abdominal ECG data of pregnant women, especially for the real-time verification of fetal ECG extraction algorithm, it requires long-term cooperation of pregnant women, which brings inconvenience and trouble to pregnant women.

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