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Apparatus and methods for providing humidity in respiratory therapy

  • US 9,597,477 B2
  • Filed: 09/12/2013
  • Issued: 03/21/2017
  • Est. Priority Date: 04/10/2006
  • Status: Active Grant
First Claim
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1. A respiratory therapy apparatus for providing positive pressure treatment to an airway of a user, the apparatus comprising:

  • a flow generator comprising a housing defining an outlet, the flow generator adapted to provide pressurized air at the outlet;

    a user interface defining an interface passage in fluid communication with the outlet of the flow generator, wherein the interface passage is adapted to deliver the pressurized air from the flow generator to a mask of the user interface, and wherein the interface passage defines a vent at or near the mask; and

    a humidifier adapted to introduce water into the pressurized air passing through the interface passage, the water introduced into the pressurized air;

    at a location distal of the vent; and

    in synchronization with a phase of a breathing cycle of the user.

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