Apparatus and method for engaging a pressurized container assembly having an indexed valve and a collar and for linear actuation by a plunger assembly in fluid communication with an apparatus for regulating drug delivery
PROBLEM TO BE SOLVED: To provide an indexed drug delivery device that has improved connection of a cylinder to a regulation device, improved protection of the cylinder, enhanced portability of the cylinder, and means for ensuring that a cylinder containing a correct drug and dosing concentration is connected to the drug delivery and regulation devices.SOLUTION: An indexed drug delivery device comprises: a valve assembly 13 comprising a housing 26 and a valve, the valve disposed within the housing 26； one or more keys 34, 38 integrated with the housing 26, the keys 34, 38 complementary to corresponding openings on a collar 12； and a pressurized canister 28 in fluid communication with the valve assembly 13, the canister 28 containing an active pharmaceutical ingredient and an inactive carrier gas.SELECTED DRAWING: Figure 1
