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Fluid supply control for patient support surface

  • US 9,030,331 B2
  • Filed: 09/05/2013
  • Issued: 05/12/2015
  • Est. Priority Date: 09/18/2009
  • Status: Active Grant
First Claim
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1. A person support surface comprisingat least one inflatable bladder,a low air loss topper including a portion above the at least one inflatable bladder, anda control system including a plurality of sensors that generate data signals indicative of a characteristic of the at least one inflatable bladder and a person'"'"'s tissue supported above the low air loss topper, a processor operatively coupled to the plurality of sensors, the processor being configured to execute operating logic to determine a surface performance index as a function of the data signals, and a fluid supply coupled to the at least one inflatable bladder and to the low air loss topper, the processor controlling the operation of the fluid supply to deliver fluid flow through the low air loss topper as a function of the surface performance index to control at least one of convective evaporation and diffusive evaporation.

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