| 摘要 |
A patient interface device (2, 60, 160, 204) includes a cushion (8, 66, 210), a frame (10, 68, 162, 206) having a faceplate portion. The cushion is coupled to the frame. The faceplate portion has a main orifice and holes adjacent the main orifice. The device further includes a coupling conduit (6, 64, 164, 212) having an inlet end, an outlet end coupled to the inlet end, and a deflector member (152) provided around an at least a portion of an outer periphery of the outlet end at a location spaced from the outlet opening, wherein the deflector member is positioned over the one or more holes in a manner wherein exhalation gasses will flow from the cushion, through the one or more holes and will be redirected and diffused by the deflector member and be caused to flow around the outlet end to atmosphere. |
