[Development and characteristic evaluation of wireless sensor module for wound temperature and pressure]

Area of Science:

• Biomedical Engineering
• Medical Devices
• Sensor Technology

Background:

• Accurate monitoring of wound parameters like temperature and pressure is crucial for effective patient care and treatment outcomes.
• Existing monitoring methods may be invasive, cumbersome, or lack real-time data transmission capabilities.

Purpose of the Study:

• To develop and evaluate a novel wireless sensor module for simultaneous measurement of wound temperature and pressure.
• To assess the module's accuracy, reliability, and biosafety for potential clinical use.

Main Methods:

• A wireless sensor module integrating temperature, humidity, and pressure sensors with Bluetooth transmission was designed and fabricated.
• Characteristic tests included comparative measurements against infrared thermometers and negative pressure meters.
• Biosafety was evaluated through in vivo animal studies (rats and rabbits) and in vitro cytotoxicity assays (L-929 fibroblasts).

Main Results:

• The wireless sensor module accurately measured temperature, showing high correlation with an infrared thermometer (r=0.996, P<0.01).
• Pressure measurements demonstrated significant positive correlation with a negative pressure meter (ρ=1.000, P<0.01).
• Both in vivo and in vitro studies confirmed the module's excellent biosafety, with no significant toxicity or skin irritation observed.

Conclusions:

• The developed wireless sensor module reliably monitors local temperature and pressure, with data visualized on a mobile application.
• The device exhibits accurate measurements, good correlation with standard instruments, and favorable biosafety profiles.
• This technology presents significant clinical value and promising development prospects for wound management.