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Nasal mask with balloon exhalation valve

  • US 20020096178A1
  • Filed: 10/19/2001
  • Published: 07/25/2002
  • Est. Priority Date: 06/18/1999
  • Status: Active Grant
First Claim
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1. A nasal mask for use by a patient, said nasal mask comprising:

  • a shell portion, said shell portion being in sealed communication with the patient'"'"'s face and having one or more inlet orifices for receiving supplied gas, said shell portion having an exhalation orifice and, adjacent said exhalation orifice, an outwardly extending tubular formation defining a flow passage through said exhalation orifice; and

    a balloon exhalation valve removably connected to said outwardly extending tubular formation, said balloon exhalation valve having a balloon adapted to controllably seal and unseal said flow passage.

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