New wearable blood pressure patch offers hospital-grade accuracy

Researchers at Seoul National University have developed a stretchable, skin-mounted electronic patch that offers hospital-grade, real-time blood pressure monitoring. Unlike traditional bulky cuff-based devices that provide only intermittent readings and can be uncomfortable or inaccurate, this patch continuously tracks blood pressure by measuring the time delay between the heart’s electrical signals and the mechanical pulse in arteries. The device uses a highly sensitive, flexible sensor made from liquid metal circuits shaped via laser sintering, enabling precise, durable, and elastic performance that withstands extensive stretching without loss of accuracy. In tests, the patch demonstrated superior accuracy compared to standard cuffs, effectively capturing rapid blood pressure changes during activities like exercise. The technology promises to transform hypertension management by allowing continuous monitoring anytime and anywhere, benefiting patients, athletes, and healthcare providers. The researchers are further enhancing the patch with wireless communication and AI analysis to improve usability and accessibility. This innovation, published in Advanced Materials, exemplifies a shift toward smart healthcare, empowering individuals to manage their health proactively outside clinical settings.