Patent ID: 9132256
Filing Date: 2015-09-15
Classification: A61M

Abstract:
1. A respiratory mask assembly for delivering breathable gas to a patient, comprising: a mask main body having a front surface and a rear surface adapted in use to face the patient, the mask main body providing an aperture therethrough for the introduction of breathable gas into a nasal breathing cavity; and an elbow assembly having a generally L shape including a first leg and a second leg, the first leg including a mask end portion swivelably coupled to the front surface of the mask main body and in fluid communication with the aperture, the elbow assembly including a vent passage to allow the passage of exhaust gas from the nasal breathing cavity to atmosphere, wherein the mask end portion of the elbow assembly includes an outlet port for supplying the breathable gas to the nasal breathing cavity and an inlet port of the vent passage for receiving the exhaust gas from the nasal breathing cavity, the outlet port being separated from the inlet port by a dividing wall, the inlet port being arranged to directly oppose the nasal breathing cavity, in use, when the mask end portion is coupled to the front surface of the mask main body.