Pressure Ulcer Monitoring Platform-A Prospective, Human Subject Clinical Study to Validate Patient Repositioning...

Area of Science:

• Biomedical Engineering
• Clinical Nursing
• Patient Safety

Background:

• Pressure ulcers (PUs) are a significant concern in hospitalized patients, often resulting from immobility and inadequate repositioning.
• Current methods for monitoring patient repositioning can be labor-intensive and may not always be accurate.
• Developing reliable, non-contact monitoring systems is crucial for preventing PUs.

Purpose of the Study:

• To validate two prototype Pressure Ulcer Monitoring Platform (PUMP) devices, PUMP1 and PUMP2, for monitoring patient bed repositioning.
• To assess the accuracy and reliability of these non-contact devices in detecting patient movements.
• To evaluate the potential of PUMP devices in promoting optimal repositioning strategies to prevent pressure ulcers.

Main Methods:

• A prospective clinical study involving ten mobility-restricted patients.
• Utilized two non-contact devices: PUMP1 (wearable on gown) and PUMP2 (under bed wheels).
• Correlated PUMP device data with video recordings of patient repositioning events.

Main Results:

• Both PUMP1 and PUMP2 successfully recorded patient repositioning movements over 105 hours of capture.
• A total of 137 movements were detected with 85% reliability, including 2 false positives and 11 missed movements.
• The devices demonstrated consistent data collection without conflict between PUMP1 and PUMP2.

Conclusions:

• The PUMP devices effectively captured patient repositioning movements, demonstrating their potential for pressure ulcer prevention.
• Non-contact monitoring offers a promising approach to enhance patient safety and reduce PU incidence.
• Future integration with an SMS-based alert system could further improve caregiver repositioning behavior.