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Development and evaluation of a self-regulating alternating pressure air cushion
Gojiro Nakagami1, Hiromi Sanada, Junko Sugama
1Department of Gerontological Nursing/Wound Care Management, Graduate School of Medicine, The University of Tokyo , Tokyo , Japan and.
Disability and Rehabilitation. Assistive Technology
|December 11, 2013
Summary
A new dynamic cushion with an alternating air cell system improves blood oxygenation without increasing pressure. This technology shows promise for preventing pressure ulcers in individuals with limited mobility.
Area of Science:
- Biomedical Engineering
- Rehabilitation Science
- Medical Device Development
Background:
- Pressure ulcers are a significant concern for individuals with limited mobility.
- Regular repositioning, such as push-ups, is crucial for preventing pressure ulcers.
- Existing dynamic cushions aim to alleviate pressure but may have limitations.
Purpose of the Study:
- To evaluate the impact of a novel dynamic cushion's alternating air cell system.
- To assess effects on interface pressure and tissue oxygenation levels.
Main Methods:
- A cross-over study involving 19 healthy volunteers.
- Comparison of a new dynamic cushion with alternating vs. static air cell systems for 30 minutes.
- Monitoring of interface pressure and tissue oxygenation (near-infrared spectroscopy).
- Calculation of a reactive hyperemia indicator.
Main Results:
- No significant difference in peak interface pressure between alternating and static systems.
- Significantly higher reactive hyperemia indicator in the static group compared to the alternating group.
Conclusions:
- The alternating air cell system benefits tissue oxygenation without increasing interface pressure.
- The developed dynamic cushion is a promising tool for pressure ulcer prevention in individuals unable to perform regular push-ups.
- This novel cushion offers a new option for maintaining posture and preventing pressure ulcers.
