EP1028768A1 — Inhalation device

USPTO Abstract

An actuator for an inhaler for delivering medicament by inhalation, comprising: a main body (2) comprising a tubular member (8) for receiving a canister (7) containing medicament and having a valve stem (11) extending therefrom; and an outlet assembly (4), as a part formed separately of the main body (2), comprising a mouthpiece for guiding medicament to the mouth of a user and a nozzle block (20) for receiving the valve stem (11) of the canister (7) and delivering medicament from the canister (7) into the mouthpiece; wherein at least a part of at least one of the main body (2) and the outlet assembly (4) is configured so as to deform or break on separating the outlet assembly (4) from the main body (2) so as to prevent re-use of the actuator; characterized in that the main body (2) and the outlet assembly (4) are composed of materials having different constitution.