A 3D-Printed Wearable Ring Sensor For Long-Term Accurate Monitoring of Human Cardiovascular Condition

This paper presents a 3D-printed wearable ring sensor incorporating a MEMS piezo-resistive pressure sensor for monitoring real-time human blood pressure pulse waveform, which can serve as an indicator for cardiovascular condition. The prototype ring sensor achieves an accurate heart rate (HR) and heart rate variability (HRV) measurement compared to a commercial EKG chest band. The proposed low-cost and user-friendly monitoring approach can potentially enable a long-term monitoring of blood pressure pulse waveform and detecting changes in waveform features and subtle abnormalities in an early stage, motivating a more thorough diagnosis and effective preventive measures.