| 摘要 |
An apparatus for aerosol medication delivery, comprises a holding chamber (200) having a first and second ends, the first end being adapted to accept a source of aerosol medicament; and a mouthpiece member (100) provided at the second end of the holding chamber (200), for delivering aerosol medicament to a subject, the mouthpiece member (200) comprising: a housing (101) defining a passage (102) through which aerosol medicament can be supplied to a subject and comprising a sidewall (128) in which an opening is formed that opens to the outside of the housing (101); and a one-piece valve member (150) comprising a first valve element (152) in the passage (102) that permits delivery of aerosol to a subject during inhalation and blocks the passage (102) during exhalation and a second valve element (153) that blocks the opening in the sidewall (128) of the housing (101) during inhalation and is movable away from the opening to permit the flow of air to the outside of the housing (101) from the passage (102) during exhalation. <IMAGE> |
