Battery-Free Wireless Epidermal Sensor Networks for Continuous and High-Fidelity Systolic Blood Pressure Monitoring

This invention is a wireless, battery-free system of epidermal sensors designed for continuous and high fidelity monitoring of physiological signals, such as blood pressure. The system eliminates the need for batteries by using a smartphone to wirelessly deliver power to the sensors and collect biosignals. The sensors are designed to function seamlessly in various environments, including dynamic situations like exercise, ensuring accurate and long term monitoring. The innovation utilizes advanced communication technology and power transfer through a specially engineered textile, allowing efficient data transmission with low latency. This setup enables the sensors to operate unobtrusively, paving the way for enhanced management, diagnosis, and treatment of cardiovascular diseases, providing a potential solution for long-term, wearable health monitoring systems.

Background: 
The technology addresses the problem of continuous and accurate monitoring of physiological signals, such as blood pressure, without the limitations posed by batteries in current wearable sensors. Traditional solutions rely on battery powered devices, which can be inconvenient due to size, weight, and limited battery life, often requiring frequent charging or replacement. These factors hinder the practicality and comfort of long term monitoring, particularly in dynamic environments like exercise or daily activity. The wireless, battery-free design offers a more comfortable and unobtrusive experience for users, enabling long term monitoring without the bulk or maintenance associated with current technologies. Additionally, the system’s ability to function in dynamic settings ensures that accurate readings can be obtained even during movement, which is a challenge for many existing wearable health monitoring devices.

Applications: 

• Healthcare monitoring (e.g., cardiovascular health, blood pressure monitoring)
• Fitness and sports (e.g., tracking physiological changes during exercise)
• Wearable technology for long-term biosensing

Advantages: 

• Battery-free, eliminating the need for recharging or replacement
• Lightweight and unobtrusive for long term use
• Accurate in dynamic environments, such as during movement or exercise
• Enables continuous, high fidelity monitoring
• Efficient data transmission with low latency