Wearable Multisensor Ring-Shaped Probe for Assessing Stress and Blood Oxygenation: Design and Preliminary...

Area of Science:

• Biomedical Engineering
• Physiological Monitoring
• Wearable Technology

Background:

• Growing demand for compact, user-friendly biomedical devices for continuous health monitoring.
• Need for multi-signal acquisition to capture complex physiological states.
• Limitations of existing devices in terms of size, comfort, and simultaneous data collection.

Purpose of the Study:

• To design and develop a novel wearable multisensor ring-shaped probe.
• To enable synchronous, real-time acquisition of photoplethysmographic (PPG) and galvanic skin response (GSR) signals.
• To facilitate the detection of various physiological states through extracted indices.

Main Methods:

• Integration of PPG and GSR sensors onto a single finger-worn probe.
• Real-time data acquisition and extraction of physiological indices like heart rate (HR), oxygen saturation (SpO2), and GSR levels.
• Laboratory testing on healthy subjects to assess feasibility in detecting changes during rest, stress, and breath-holding conditions.

Main Results:

• Successful synchronous, real-time acquisition of PPG and GSR signals.
• Demonstrated feasibility in detecting rapid changes in HR, skin conductance, and SpO2.
• Accurate extraction of physiological indices for differentiating physiological states.

Conclusions:

• The developed wearable multisensor ring probe is a feasible solution for simultaneous physiological monitoring.
• The device shows potential for real-time monitoring in daily-life conditions.
• Encourages further use for detecting various physiological states and improving user comfort.