2 results about "Fetal electrocardiogram" patented technology

The present application relates to the technical field of medical diagnostic monitoring equipment manufacturing, and discloses a wearable fetal monitoring system, which comprises a flexible patch integrating a bioelectricity collection electrode and an acoustic sensing unit and a connected processing unit, the processing unit acquires a composite physiological signal, identifies a maternal pulsation period by using an acoustic component to extract a synchronous phase reference, and configures a dynamic gain window comprising a suppression zone and a detection zone on a time domain axis; a breathing-induced low-frequency envelope is extracted and a polarized charge accumulation parameter is calculated, a compensation charge current with an opposite phase is triggered by the acoustic sensing unit based on the phase reference, and is injected into a collection front end in real time to neutralize baseline drift, the present application eliminates phase distortion caused by interface polarization through physical layer charge offset, and realizes complete retention of low-frequency morphological characteristics of fetal electrocardiogram signals under dynamic working conditions, and improves the determination accuracy of critical symptoms.

This application provides a method, apparatus, device, and readable storage medium for extracting fetal electrocardiogram (ECG) signals, relating to the field of artificial intelligence. The method includes: acquiring a pregnant woman's abdominal ECG signal; determining a pregnant woman's chest ECG signal related to the pregnant woman's ECG component within the abdominal ECG signal; eliminating the pregnant woman's ECG component from the abdominal ECG signal based on the chest ECG signal to obtain a target ECG signal; and enhancing the target ECG signal to extract the fetal ECG signal. This application addresses the problem that existing fetal ECG signal extraction methods and devices cannot accurately acquire relatively weak fetal ECG signals.