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Power failure management for respiratory system heater unit

  • US 7,777,635 B2
  • Filed: 10/29/2007
  • Issued: 08/17/2010
  • Est. Priority Date: 10/29/2007
  • Status: Expired due to Fees
First Claim
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1. In a humidification system comprising a heater unit configured to heat liquid contained within a chamber supported by the heater unit, the chamber adapted to couple to a source of breathable gas via a gas conduit and to a patient via an inspiratory limb so as to impart heat to a portion of a respiratory system, the heater unit being independent of said source of breathable gas, the heater unit including an audible alarm and heater thermally couplable to said chamber and adapted to be selectively energized from a source of electrical supply, a method of power failure management for the heater unit comprising:

  • monitoring the source of electrical supply at the heater until for a disruption;

    in response to detection of the disruption of, sounding an audible alarm of the heater unit.

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