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Wireless Pressure Ulcer Sensor: Validation in an Animal Model
Kelli Hickle, Robert Slamin, Angel Baez
1Department of Electrical & Computer Engineering, Worcester Polytechnic Institute.
Annals of Plastic Surgery
|March 12, 2019
Summary
A new wireless sensor monitors patient pressure to prevent pressure ulcers. The device alerts caregivers to intervene, reducing injury risk in aging populations.
Area of Science:
- Biomedical Engineering
- Medical Devices
- Wound Prevention Technology
Background:
- Pressure ulcers are a growing concern, particularly in the elderly.
- Current prevention methods like repositioning and specialized cushions are often costly or labor-intensive.
Purpose of the Study:
- To develop and validate a novel wireless sensor for real-time pressure monitoring.
- To establish a foundation for predicting pressure injury risk using time-pressure data.
Main Methods:
- A wireless sensor was implanted in Sprague-Dawley rats to monitor pressure.
- Controlled pressure (30-150 mm Hg) was applied for 1-8 hours.
- Clinical and histological analyses assessed tissue damage.
Main Results:
- Pressure application exceeding 2 hours consistently caused skin ulceration.
- Increased pressure duration correlated with histological hemorrhage.
- High pressures induced muscle ischemia without skin ulceration.
Conclusions:
- A wireless pressure sensor was successfully developed and tested in an animal model.
- The sensor can wirelessly transmit real-time pressure data.
- This technology shows promise for early intervention and pressure ulcer prevention.
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