Abstract: A specialty support surface for a variable width bed that can easily change its width from a wide bariatric mattress to a standard width so it can fit through a standard hospital door frame. The support surface can be placed on any bariatric bed frame that is designed to reduce its width to fit through a standard door. The support surface has the normal traverse air cells (used to reduce or relieve pressure). In addition, transverse air cells have independently controlled compartments on their ends. By inflating or deflating the controlled compartments, the length of the transverse air cells can be varied. These controllable compartments are controlled through an electronic controller by simply pressing a keypad on its touch panel. The electronic controller is used to control air pressure to the various compartments of the specialty support surface. The mattress replacement can be single or multi zone.

Abstract: An air distribution device with a plurality of sheets is provided to prevent and treat decubitus ulcers. Air from an air source is provided between sheets of the coverlet which are air tight except for a plurality of very tiny apertures that are provided in the top sheet. The device is used between a support surface such as an alternating pressure mattress and a patient. The air escaping from the tiny apertures circulates around the patient to remove excess moisture from the patient's skin and wounds. The top sheet of the coverlet is made of a low friction nylon with an undercoating of a waterproof yet vapor permeable polyurethane. The top sheet has a plurality of apertures punched through the material. The central sheet is made out of the identical material of the top sheet, except there are no tiny apertures.

Abstract: A pulsating medical (surgical) operating table cushion comprising an air sac array having two groups of pneumatically expandable and contractible air cells respectively communicating with one another in each of the groups. An air pump supplies air under pressure to the cells in each group through a separate conduit pipe for each respective group. Solenoid valves direct the air flow from the air pump either into the first conduit or the second conduit based upon an air supply controller. A timer provided in the air supply control circuitry changes the sequence of the air control valves after a predetermined period of time passes.

Abstract: A pneumatic device for therapeutic treatment of the skin and skin pressure areas of immobile patients seated in a chair, or a mobile wheel chair, which provides for alternating low air loss pressure sacs that are in contact with the seated patient that includes an air sac array overlay that is conveniently and quickly mounted to a bedside chair, or wheel chair, a portable air supply that can be attached for controlling the individual air sac alternating air pressures, the portable air supply housing being mounted on the side arm of a chair, or another location on a wheel chair, and a separate removable coverlet that is liquid impervious for incontinent patients while providing for sweat absorption for the patient seated thereon. The portable air supply can be quickly detached from the air sac chair overlay for use with a bed mattress air pressure alternating device. The portable air supply being battery powered when used on a mobile wheel chair.