| 摘要 |
An aerosol inhalation device, comprises an actuator (1), a canister (3) containing pressurized aerosol formulation received in said actuator, the canister having a dispensing metering valve comprising a metering chamber, a valve stem (4) disposed therein and movable between a charge position, in which the chamber is isolated from the atmosphere whilst the chamber communicates with the interior of the chamber can be discharged to the atmosphere whilst the chamber is isolated from the canister (3). The valve stem (4) has at least one transfer port (9, 10), adapted to communicate with the chamber in the discharge position and a discharge port (12), adapted to engage valve stem location means (5) in the actuator (1) having a flow connection with the atmosphere. The stem (4) includes a flow conduit (11) linking the at least one transfer port (9, 10) with the discharge port (13), such that the valve stem and the valve stem location means (5) cooperate to form a continuous flow path (7, 11), characterized in that the stem (4) includes spray-producing means (14, 15).
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