Humidifier with structure to prevent backflow of liquid through the humidifier inlet

  • US 7,614,398 B2
  • Filed: 07/15/2005
  • Issued: 11/10/2009
  • Est. Priority Date: 02/16/2001
  • Status: Expired
First Claim
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1. A humidifier assembly for a CPAP apparatus, comprisinga humidifier includinga base configured to retain a body of liquid therein, at least a portion of the base being constructed of a heat conducting material,a top cover, anda seal disposed between the top cover and the base;

  • anda connecting structure configured to connect between the CPAP apparatus and humidifier and allow communication of an outlet of the CPAP apparatus with the inlet of the humidifier, the connecting structure includinga housing providing a base portion to support the humidifier thereon, anda retaining mechanism configured to secure the connecting structure to the CPAP apparatus,wherein the base portion includes a heating element in contact with the heat conducting material of the base of the humidifier.

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