Methods and apparatus for delivering aerosolized medication

Details Methods and apparatus for delivering aerosolized medication Methods and apparatus for delivering aerosolized medication

A - Human Necessities

61

M

A61M 15/00 (2006.01)

Patent

CA 2565088

The present invention relates to an aerosol flow control apparatus providing automatic discharge of medication responsive to an inspiratory effort of a user, and methods of using thereof. The apparatus comprises a pressurized canister of medication including a canister body and a hollow discharge stem, a housing adapted to support the canister, a variable-volume device supported within the housing and including a wall which is movable with respect to the housing, a canister restraint affixed to the movable wall of the variable-volume device, and a resilient member. The housing defines a primary air passage including an outlet through which a user can inhale. The variable-volume device defines a variable-volume chamber therein, which is in fluid communication with the primary air passage. Inhalation of a user through the outlet causes air to be evacuated from the chamber and thereby causes the movable wall to move the canister restraint into the discharge position.

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