Abstract
Impaired sensory perception is a risk factor for pressure ulcer development. Pain and discomfort are symptoms of excessive pressure and potential tissue damage.
Highlights
ARTICLE INFORehabilitation cushions are used to prevent prolonged exposure to high pressure points among persons with impaired mobility, diabetics and the elderly
Impaired sensory perception is a risk factor for pressure ulcer development
Pressure distribution sensors have been used as indicators of this exposure and they provide reliable information to avoid pressure ulcers and blood flow restrictions that could lead to tissue necrosis
Summary
Rehabilitation cushions are used to prevent prolonged exposure to high pressure points among persons with impaired mobility, diabetics and the elderly. Pressure distribution sensors have been used as indicators of this exposure and they provide reliable information to avoid pressure ulcers and blood flow restrictions that could lead to tissue necrosis. This work describes a prototype model of a multi-chamber cushion system that senses the patient-cushion interface pressure and uses a microcontroller to re-distributes the pressure-profile by an inflation-deflation methodology which continuously preserves an adequate pressure levels for patients with low mobility. The prototype model operates using strain pressure sensors in the control loop and uses the capacitive sensor as an indication of pressure profile
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