A low air loss therapeutic air support system which simultaneously prevents the development of pressure sores and skin maceration due to the build up of heat and moisture at points of interface between the device and the patient and has an active feedback system which provides for real time adjustments...http://www.google.sh/patents/US5963997?utm_source=gb-gplus-sharePatent US5963997 - Low air loss patient support system providing active feedback pressure sensing and correction capabilities for use as a bed mattress and a wheelchair seating system
