A prototype of automatic mattress turning device for pressure ulcer prevention
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Abstract
Background: Pressure ulcer is a major health care problem in bed ridden patients. One of preventive measures is repositioning every 2 hours which is a burden workload on a caregiver.
Objectives: The study aimed to develop and test a laboratory prototype of the automatic mattress turning device (AMTD) whether it could turn one side of the mattress and reposition a patient in a hospital bed as suggesed by the National Pressure Ulcer Advisory Panel (NPUAP).
Materials and methods: A laboratory prototype of AMTD consisted of a set of air bellows and controller. Air bellows were placed under a mattress. An air pump and solenoid valve are controlled by a microcontroller to inflate and deflate the air bellows for turning the mattress, thus reposition from supine to a 30° side-lying or lateral turn position as recommended by NPUAP. Duration for each position can be adjusted from 0 - 120 minutes. A 3-day test was conducted with different duration of turn with bed head tilted at 0° and 30°.
Results: The test revealed that AMTD can provide accurate turning positions and durations of each position. In addition, it worked efficiently when head of bed was lifted up at 30°.
Conclusion: AMTD could turn a hospital mattress and assist with patient repositioning. Further development for commercial use would lead to a new device for pressure ulcer prevention.
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This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Personal views expressed by the contributors in their articles are not necessarily those of the Journal of Associated Medical Sciences, Faculty of Associated Medical Sciences, Chiang Mai University.
References
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