BRAMBILLA, GAETANO,LEWIS, DAVID ANDREW,JOHNSON, ROBERT
申请号：
CA2808287
公开号：
CA2808287A1
申请日:
2011.09.05
申请国别(地区):
CA
年份:
2012
代理人:
摘要：
Metered-dose inhaler actuator, metered-dose inhaler and method of using the same An actuator (11) for a metered-dose inhaler (1) is provided. The actuator (11) com- prises a housing having a mouthpiece portion (13) and a canister receiving portion (12) configured to receive a canister (2). The actuator (11) further comprises a member (14) disposed within the housing and defining a valve stem receptacle (15) con- figured to receive a valve stem (3) of the canister (2). An orifice (16) is formed in the member (14), which is in fluid communication with the valve stem receptacle (15) and extending to a face (19) of the member (14) opposite to the valve stem receptacle (15). A longitudinal axis (18) of the orifice (16) is aligned with a longitudinal axis (17) 15 of the valve stem receptacle (15). At least one air inlet opening (20) is provided in an outer shell of the housing so as to be spaced from an opening (21) for receiving the canister (2) and a mouthpiece opening (22).
