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Nasal assembly

  • US 7,942,150 B2
  • Filed: 04/08/2005
  • Issued: 05/17/2011
  • Est. Priority Date: 04/09/2004
  • Status: Active Grant
First Claim
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1. A mask assembly for treating a patient, comprising:

  • a patient contacting portion defining a plenum chamber and adapted to sealingly engage with a patient;

    a frame to support the patient contacting portion;

    at least one vent to provide a vent exit for passage of exhaled gas; and

    a baffle having a base plate and at least one arm;

    wherein the base plate is connected to a portion of the frame and the at least one arm is positioned proximal to an air inlet to create air turbulence within the plenum chamber, andwherein the baffle at least partially separates the vent exit of the vent from the air inlet.

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