초록 ▼

A nasal positive airway pressure device is provided having a plenum chamber, a pair of nasal delivery members, and a variable orifice venting aperture member. The variable orifice venting aperture member preferably is mounted to the plenum chamber, but may be mounted at other locations in communicat

A nasal positive airway pressure device is provided having a plenum chamber, a pair of nasal delivery members, and a variable orifice venting aperture member. The variable orifice venting aperture member preferably is mounted to the plenum chamber, but may be mounted at other locations in communication with the nasal delivery members. The variable orifice vent aperture member expands under increased pressure, e.g., during exhalation, and contracts to its original diameter at lower pressures, e.g., during inhalation, to provide variable venting capacity during positive airway pressure treatment.

대표청구항 ▼

A device for treatment of sleep apnea comprising: a source of pressurized air; a plenum chamber in communication with the source of pressurized air; a pair of nasal delivery members connected to and in communication with the plenum chamber, the nasal delivery members being configured and dimensioned

A device for treatment of sleep apnea comprising: a source of pressurized air; a plenum chamber in communication with the source of pressurized air; a pair of nasal delivery members connected to and in communication with the plenum chamber, the nasal delivery members being configured and dimensioned to delivery pressurized air from the plenum to the nares of a patient; at least one variable orifice member defining a variable orifice which assumes a first position having a first diameter at a first gas pressure and a second, expanded position having a second diameter greater than said first diameter at a second, increased gas pressure.