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Air control system for therapeutic support surfaces

  • US 7,971,300 B2
  • Filed: 10/09/2007
  • Issued: 07/05/2011
  • Est. Priority Date: 10/09/2007
  • Status: Expired due to Fees
First Claim
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1. A patient support surface comprising:

  • a cover defining an interior region;

    a plurality of inflatable zones located in the interior region;

    a plurality of air control nodes located in a non-inflatable portion of the interior region adjacent each of the inflatable zones, each node being associated with a zone, each node including an air supply pneumatically coupled to one of the zones, a power supply which powers the air supply, a processor operable to execute programming logic configured to control air flow between the air supply and the zone, and a network interface configured to receive data or control signals directly from one or more other air control nodes; and

    control circuitry configured to enable communication between any of the air control nodes and an external bed network relating to a condition of a bed frame, wherein each control node communicates data indicating a condition of the associated inflatable zone to the bed network to enable the bed frame to respond to the condition of the inflatable zone.

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