We are developing a wearable, non-transmitting sensor for fetal movements to enable reliable and safe at-home, low-cost monitoring of fetal health. This project is a collaboration with Dr Ravi Vaidyanathan, Imperial College London.
We developed a new wearable system based on a novel combination of accelerometers and bespoke acoustic sensors and validated the system with concurrent ultrasound tests on a cohort of 44 pregnant women. We showed that the garment was capable of both detecting and discriminating the vigorous, whole-body ‘startle’ movements of a fetus. Paper linked here.
We developed a fetal movement simulator to test responses of sensor arrays to signals from fetal “kicks” in a laboratory environment. We found that the acoustic sensor and the piezoelectric diaphragm are better equipped than the accelerometer to determine durations, intensities, and locations of kicks. Paper linked here.
We were recently awarded funding to further develop and clinically validate the monitor by the Wellcome Leap. Read the news story here.