Neckband-type Self-powered Pulsewave Sensor for Continuous Blood Pressure Monitoring

For effective continuous blood pressure (BP) monitoring at home, the system should be portable, user-friendly, and comfortable for the patient, ensuring convenience during continuous data collection. In this paper, we report a wearable neckband-type earphone designed for continuous monitoring of cardiovascular symptoms and BP in a non-invasive and wireless manner via a self-powered pulse wave (SPP) sensor. The SPP exhibits a sensitivity of 19.88 mV/Pa, allowing for the measurement of human pulse waves directly on the skin. Additionally, its low energy consumption, achieved through a triboelectric mechanism, enables the development of user-friendly auxiliary care systems, such as continuous BP monitoring integrated with seamless patient-doctor remote communication systems. This work provides an efficient and cost-effective approach toward active and personalized health condition monitoring.Clinical Relevance- Currently, the ratio of medical doctors to patients in hospitals in British Columbia, Canada, is approximately 2.47 per 1,000 individuals . [1] This research, which focuses on out-of-clinic care services for cardiovascular symptoms, aims to reduce the burden on clinicians by enabling continuous remote monitoring and management.