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Inflatable mattress and control methods

  • US 9,468,307 B2
  • Filed: 03/15/2013
  • Issued: 10/18/2016
  • Est. Priority Date: 09/05/2012
  • Status: Active Grant
First Claim
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1. A patient support comprising:

  • an inflatable bladder;

    a depth sensor adapted to generate a depth signal indicative of how deeply a patient positioned on said patient support sinks into said inflatable bladder;

    an air pressure sensor adapted to generate an air pressure signal indicative of a level of air pressure inside of said inflatable bladder; and

    a controller adapted to determine a suitable inflation level of said bladder by monitoring a rate of change of the depth signal with respect to the air pressure signal as the air pressure inside the bladder is changed.

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