Air chamber-type patient mover air pallet with multiple control features

摘要

An inflatable flexible pallet having generally rectangular dimensions defined by top and bottom sheets within which an array of structurally interrelated inflatable chambers are formed to support a load when inflated. The flexible pallet is configured to resist lateral and longitudinal shrinkage of the load support surface, resist ballooning and hot dogging, and reduce rotational instability by providing a greater load surface support area having sufficient rigidity to support the desired load, while simultaneously achieving improved air dispersion for a more uniform jacking of the load, and maintaining a preset internal pressure using an automatic self-regulating valve to provide circulatory therapy to a patient lying atop the pallet for an extended period. The flexible pallet is further configured to provide for the transfer of the load over an underlying rigid surface through the use of a pattern of escape ports through the bottom sheet or by the incorporation of a separately inflatable underlying plenum chamber having a similar pattern of escape ports for creating an air film upon which the pallet can be moved.