Patent ID: 7942146

Claim:
A valve system for a canister that is operable to dispense at least one dose of propellant-driven pharmaceutical aerosols, the valve system comprising: a propellant gas pharmaceutical formulation loaded in the canister, the canister comprises an interior chamber; at least two channels for outwardly conveying the propellant gas pharmaceutical formulation loaded in the canister; at least two valves each comprising at least one of the channels such that the channels extend substantially parallel to a longitudinal axis of the canister and are connected to the interior chamber such that the channels receive the propellant gas pharmaceutical formulation from the interior chamber for dispensing through respective valve openings, and wherein each of the channels defines an angled extension beyond an outer surface of a valve cup of the canister, each angled extension having a longitudinal axis, wherein the longitudinal axis of each of the angled extensions makes an angle between 0° to 90° relative to the longitudinal axis of the canister such that longitudinal axes of the valve openings intersect to define an angle α, wherein 0°<α≦180°, and jets emerging from the valve openings are directed towards one another whereby the jets at least partially impact with one another after leaving the valve openings.