Patent ID: 9427544
Filing Date: 2016-08-30
CPC Classification: A61M

Claim Text:
1. A patient interface for treatment of a user having a respiratory disorder, the patient interface comprising: a nasal portion including a nasal chamber adapted to be in communication with a supply of pressurized gas and at least one nasal portion aperture to permit delivery of the pressurized gas into at least one nasal opening of the user; a mouth portion including a mouth chamber adapted to be in communication with the supply of pressurized gas and at least one mouth portion aperture to permit delivery of the pressurized gas into an oral cavity of the user's mouth, wherein the nasal chamber of the nasal portion is in direct communication with the mouth chamber of the mouth portion, and wherein the at least one mouth portion aperture is separate from the at least one nasal portion aperture; and a user selectable restrictor portion adapted to be selectively positioned by the user in a plurality of user selectable positions, the user selectable restrictor portion including only a single valve structured and arranged to allocate a flow of the pressurized gas to the nasal chamber and the mouth chamber so as to limit a flow of the pressurized gas from said supply of pressurized gas out of the at least one mouth portion aperture and into said oral cavity of the user's mouth to be up to but no greater than a flow of the pressurized gas from said supply of pressurized gas out of the at least one nasal portion aperture and into said at least one nasal opening for each of the plurality of user selectable positions, the user selectable restrictor portion including at least one of (i) a first flow position in which the flow of the pressurized gas out of the at least one mouth portion aperture is the same as the flow of the pressurized gas out of the at least one nasal portion aperture, and (ii) a plurality of second flow positions in which the flow of the pressurized as out of the at least one mouth portion aperture is less than the flow of the pressurized gas out of the at least one nasal portion aperture.