US Patent 7905230 Metered dose inhaler with lockout

An aerosolization device comprises a housing, a container comprising a reservoir storing a pharmaceutical formulation which comprises a propellant, and a metering valve. The metering valve is in communication with the reservoir and is moveable into the container to an actuated position where a predetermined amount of the pharmaceutical formulation is released. A contact member is provided in the housing. In one version, the contact member is moveable between a first position and a second position to allow for selective actuation of the metering valve. In another version, the contact member's configuration may be changed to allow for selective actuation of the metering valve.