INHALATION DELIVERY APPARATUS

摘要

There is provided an inhaler apparatus (1) comprising: (a) a heating chamber reservoir (R) for containing a propellant that is liquid at room temperature and standard atmospheric pressure; (b) a heating mechanism (HE), said heating mechanism being operable for heating said liquid propellant to at least a predetermined temperature threshold in a sealed manner to increase pressure inside said heating chamber reservoir (R); (c) an actuator (P) for opening said apparatus and releasing for inhalation by a human said heated propellant; (d) a reservoir for containing said liquid propellant that is separate and distinct from said heating chamber reservoir (R); and (e) in communication with said separate reservoir and with said heating chamber reservoir (R), a mechanism for metering said selected amount of said liquid propellant from said separate reservoir to said heating chamber reservoir (R), wherein said heating chamber reservoir (R) receives and heats a selected amount of said liquid propellant in a sealed manner to increase pressure within said heating chamber reservoir (R).