Wearable Microelectromechanical Sensing System For Integrated Respiratory And Physiological Signal Monitoring

SUMMARY

A wearable, wireless sensor that integrates flexible, capacitive, acoustic, and optical technologies to continuously monitor breathing, heart signals, and oxygen levels for accurate sleep apnea and respiratory condition diagnosis.

The Unmet Need: Accurate, continuous monitoring of respiratory function in diagnosing disorders like sleep apnea

• In today’s healthcare landscape, accurate and continuous monitoring of respiratory function has become crucial as the prevalence of conditions like sleep apnea, asthma, and chronic obstructive pulmonary disease rises. The modern field of respiratory diagnostics seeks to gather comprehensive biosignals—such as breathing patterns, heart rate, and blood oxygen levels—with an emphasis on non-invasive, wearable techniques that allow for both clinical and at-home assessments. There is an urgent need for technologies that can provide real-time, precise insights to better facilitate early diagnosis, timely intervention, and personalized treatment strategies for patients with respiratory disorders.

• Current monitoring methods, however, face significant challenges. Traditional in-lab systems are often bulky, expensive, and inconvenient, relying on indirect measurements that may not accurately reflect true respiratory effort. Home-based tests frequently suffer from issues like environmental interference, sensor misplacement, and compromised signal quality, which can lead to misinterpretation of patient conditions. These shortcomings highlight the gap between current capabilities and the need for a more reliable, comfortable, and comprehensive approach to respiratory monitoring.

The Proposed Solution: Integrated flexible capacitive sensing microelectromechanical system-based wearable breathing sensor

• The faculty inventor developed a wireless, integrated, flexible capacitive sensing platform combines a microelectromechanical sensing-based sensor array with a wireless module to capture a variety of biosignals. The sensor array, designed for placement on the suprasternal notch and chest, incorporates an air-coupled microphone array, pressure sensor, electrodes for ECG/EMG, and optical sensors for SpO₂. It is engineered with adjustable stiffness and a reliable adhesive attachment, ensuring optimal skin contact. The accompanying wireless module manages sensor activation, calibration, data storage, dynamic sampling rates, and secure Bluetooth transmission for real-time analysis.

• What sets this technology apart is its comprehensive monitoring capability paired with high-fidelity signal quality. Unlike traditional setups that rely on indirect measures, this system directly captures breathing waveforms and a suite of physiological signals in one compact wearable. Its innovative design, which minimizes ambient noise interference through strategic sensor placement and airtight acoustic chambers, allows for precise detection of respiratory events and sleep stages. This level of integration and accuracy opens new opportunities for diagnosing sleep apnea and respiratory conditions, while providing continuous monitoring in critical care and home settings.

ADVANTAGES

ADVANTAGES

• Direct, high-fidelity breathing measurement and comprehensive respiratory monitoring through integrated multi-sensor technology

• Enhanced patient comfort and convenience by replacing bulky, traditional sleep study setups with a wearable solution

• Accurate and versatile placement for reliable detection across diverse patient profiles, including children

• Advanced signal processing with ambient noise cancellation and artifact reduction for superior diagnostic precision

• Real-time wireless data transmission and cloud-based analysis for continuous monitoring and personalized treatment management

APPLICATIONS

• Wearable respiratory diagnostics

• Home sleep apnea monitoring

• Critical care monitoring

• Remote patient tracking