Opportunity
Current wearable health monitoring devices face significant challenges in accurately detecting and interpreting different biomarkers from sweat for comprehensive health assessment. Traditional skin-integrated biosensors often struggle with avoiding false readings due to interference between different biomarkers. Additionally, existing systems lack efficient sampling mechanisms that maintain platform flexibility and durability while handling complex biofluids like sweat. There is a clear need for an improved integrated system capable of simultaneously differentiating multiple sweat components with high accuracy, efficient sampling, and real-time feedback to users when abnormal physiological signals are detected. The motivation behind this patent is to address these limitations by developing a flexible, non-invasive system that provides reliable real-time monitoring of an individual's health status through sweat analysis.
Technology
The patent describes an innovative integrated sweat sensing system with a multi-layer structure designed for real-time health monitoring. The key technological innovation lies in its combination of a flexible printed circuit board (FPCB) with multiple electronic/mechanical components and a microfluidics-based biosensing platform. The system features a meticulously designed microfluidic interface between human skin and biosensors, which provides efficient sweat sampling while preventing contamination. The biosensing platform incorporates multiple sensors for detecting ions (NH₄⁺, Na⁺), glucose, pH value, temperature, and humidity. A unique aspect is the synchronous feedback mechanism using tactile actuators and visual signals (LEDs) that alert users when biomarker levels exceed preset thresholds. The system employs advanced manufacturing techniques including photolithography and replica molding to create the microfluidic components, and utilizes specialized materials like polyimide (PI) and PDMS for flexibility and durability.
Advantages
- Simultaneous detection of multiple biomarkers (ions, glucose, pH, temperature, humidity)
- Real-time monitoring with immediate feedback mechanism
- Flexible and wearable design conforms to body contours
- Microfluidic design prevents contamination and provides efficient sweat sampling
- High sensitivity and anti-interference capabilities
- Low-power consumption (<>
- Stable performance under mechanical stress (withstands bending over 90 degrees)
- Synchronous tactile and visual warning system
- Non-invasive and comfortable for long-term wear
Applications
- Personal health monitoring during exercise and daily activities
- Medical diagnostics and patient monitoring
- Sports performance tracking
- Military and first responder health monitoring
- Elderly care and remote health monitoring
- Chronic disease management (e.g., diabetes)
- Heat stroke and dehydration prevention
- Workplace safety monitoring in high-temperature environments
