Importance

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Abstract

Airtight sacks are installed in parallel array to support a patient on a bed. A blower supplies air to the sacks through a function control valve system and a multi-tap high flow pressure selector. The pressure selector defines discrete zones of air pressure between its inlet and its exhaust to atmosphere. An adjustable tap communicating with each sack may be selectively placed in communication with any of the pressure zones to independently establish the pressure maintained in each sack. The sacks connect to the line from the pressure tape at a check valve connector. The function control valve system permits, in addition to normal operation, rapid inflation of the sacks, rapid pump-down of the sacks, and closing of the sacks to retain air pressure for transportation. A detector and indicator of the patient's depth of deflection is provided for at least one sack.

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First Claim