| abstract |
The present invention relates to an indexed drug delivery device (70) comprising: - a valve assembly (13) comprising a valve and a housing (26), the valve being arranged in the housing, - one or more keys (34,38) integrally formed in said housing, said keys being configured to have an inter-fitting shape with respect to a corresponding opening on collar (12) - a compression canister (28) in fluid communication with the valve assembly, the canister containing an active pharmaceutical ingredient and an inert carrier gas, A receiving assembly including a container configured to engage with at least a portion of the housing and a seat configured to engage the valve, A plunger assembly configured to linearly actuate the valve assembly and the canister along an axis to couple the valve to the seat, the plunger assembly including a lever having a cam configured to engage a carriage and a spring secured to the collar, The spring is configured to linearly actuate the carriage, valve assembly, canister and collar along the axis. |