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Ventilation mask with integrated piloted exhalation valve and method of ventilating a patient using the same

  • US 9,616,194 B2
  • Filed: 03/27/2012
  • Issued: 04/11/2017
  • Est. Priority Date: 06/22/2011
  • Status: Active Grant
First Claim
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1. A method of ventilating a patient utilizing a direct nasal interface mask worn by the patient and fluidly connected to a ventilator adapted to supply a pressurized, breathable gas to the direct nasal interface mask, the method comprising the steps of:

  • a) providing the direct nasal interface mask with a housing defining at least one flow passage, and a piloted exhalation valve is integrated into the housing and fluidly coupled to the flow passage; and

    b) applying a pilot pressure to the exhalation valve via the ventilator and in a manner which facilitates the selective movement thereof from an open position to which it is normally biased and wherein at least a portion of the flow passage is vented to ambient air, to a closed position wherein fluid flow between the flow passage and ambient air is at least partially obstructed thereby.

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