Air distribution device for the prevention and the treatment of decubitus ulcers and pressure sores

An air distribution device for placing between a patient and a support surface for prevention and treatment of decubitus ulcers, comprising:

• a waterproof and vapor permeable top sheet;
• a waterproof and vapor permeable central sheet, said top sheet and said central sheet connected together and defining an essentially air tight chamber, said essentially air tight chamber including means for supplying air above ambient air pressure;
• wherein said means for supplying air above ambient air pressure includes an air compressor pump and controller, said controller including manual selection to turn on and off the air supply to said essentially air tight chamber from said air compressor pump;
• a quilted synthetic bottom sheet connected to said central sheet;
• said top sheet including a plurality of relatively tiny apertures therethrough in a preselected pattern, wherein air delivered to said air chamber by said means for supplying air above ambient air pressure escapes from said air chamber through said plurality of relatively tiny apertures;
• and
• said air compressor pump includes a second air supply to an alternating pressure inflatable mattress, said controller manual selection to turn on and off the air supply to said essentially air tight chamber is independent of the second air supply to said alternating pressure inflatable mattress.