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Pressure control for a hospital bed

  • US 8,844,079 B2
  • Filed: 07/07/2006
  • Issued: 09/30/2014
  • Est. Priority Date: 07/08/2005
  • Status: Active Grant
First Claim
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1. A pressure adjustable mattress system to support a patient, comprising:

  • a pressure adjustable mattress;

    a controller coupled to the pressure adjustable mattress to control the mattress in an automatic pressure relief mode and in a user adjustable mode, by, without leaving the automatic pressure relief mode;

    computing an optimum pressure,controlling the pressure in the pressure adjustable mattress to the optimum pressure,receiving a user-specified pressure adjustment at a user interface device, wherein the user-specified pressure adjustment is specified relative to the computed optimum pressure,modifying the computed optimum pressure with the user-specified pressure adjustment, andcontrolling the pressure in the pressure adjustable mattress to maintain the modified optimum pressure; and

    a user interface, coupled to the controller, the user interface including a selectable input to enable a user to control pressure adjustment of the pressure adjustable mattress in the automatic pressure relief mode and the user adjustable mode.

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