Abstract: A system and method for controlling the flow of fluid for an inflatable body support 30 system, such as a mattress, having multiple, inflatable chambers. Each inflatable chamber can be selectively and independently inflated and deflated to vary the pressure exerted from the mattress surface to selected areas of a human body, thereby preventing the formation of decubitus ulcers. The system includes a valve assembly that includes a plurality of solenoid valves to direct air at a pressure of less than 1 pound per square inch into each chamber and a separate vent valve all operable by a controller to regulate the level of inflation of each inflatable chamber.

Abstract: A system and method for controlling the flow of fluid for an inflatable mattress having multiple, non-interconnected inflatable chambers and a moveable inflatable limb elevation chamber. Each inflatable chamber can be selectively inflated and deflated to vary the pressure exerted from the mattress surface to selected areas of a human body, thereby preventing the formation of decubitus ulcers. The limb elevation chamber may also be selectively inflated and deflated as well being positioned at any desired portion of the inflatable mattress in order to raise one or more human limbs off the surface of the mattress.

Abstract: A system and method for controlling the flow of fluid for an inflatable mattress having multiple, non-interconnected inflatable chambers. Each inflatable chamber can be selectively inflated and deflated to vary the pressure exerted from the mattress surface to selected areas of a human body, thereby preventing the formation of decubitus ulcers.