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VALVED HOLDING CHAMBER AND MASK THEREFOR

  • US 20110232636A1
  • Filed: 12/18/2008
  • Published: 09/29/2011
  • Est. Priority Date: 12/18/2008
  • Status: Abandoned Application
First Claim
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1. A valved holding chamber, comprising:

  • a main chamber housing; and

    a mouthpiece assembly coupled to a first end of said main chamber housing, said mouthpiece assembly including an exhalation valve element providing a one-way flow of gas from within said mouthpiece assembly to ambient atmosphere, said exhalation valve element having a first portion and a second portion, wherein when a first exhalation gas flow having a gas flow rate that is less than or equal to a threshold gas flow rate is present within said mouthpiece assembly, said first portion will be caused to exhibit a first degree of movement as a result of said first exhalation gas flow and said second portion will be caused to exhibit a second degree of movement as a result of said first exhalation gas flow, said first degree of movement being greater than said second degree of movement.

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