Inhalation actuated device
AssigneeIEP Pharmaceutical Devices Inc.
InventorsPerry A. Genova, Robert C. Williams, Keith Wakefield
Life of this patent
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Abstract
An inhalation activated device or dispenser is disclosed. In particular, the dispenser comprises a housing for containing an aerosol canister containing a medication wherein the canister is moveably contained in the housing upon inhalation by the patient whereby a metered dose of a spray is initiated and a controlled period of time is established by a dwell means.
Claims18
An inhalation activated dispenser, which comprises:
- (a) a housing means for receiving a canister containing an aerosol medication for dispensing a dose thereof to a patient which is moveable in said housing which movement causes a dispensing of medication from a dispensing means which requires a dwell time to refill to allow for dispensing a subsequent dose of medication;
- (b) inhalation means so as to allow for inhalation by a patient of medication;
- (c) an activation means for acting upon a canister upon the inhalation by a patient through said inhalation means causing movement from a first position to a second position whereupon a dose of medication is released therefrom;
- and
- (d) a dwell means within said housing means for maintaining a canister for a sufficient period of time in the second position to replenish a dose of said medication in a dispensing means contained therein.
An inhalation activatable dispenser for use with an aerosol container having a valve for dispensing aerosol from an outlet in the container, the valve having a hollow stem which is moveable relative to the container between an extended closed position and a compressed discharge position of the valve upon the inhalation of a patient, which comprises:
- (a) a housing, having a mouthpiece and an air passage therethrough terminating at said mouthpiece, for receiving and moveably retaining the aerosol container;
- (b) a nozzle seat within said housing with a means to receive the stem and a orifice communicating between the stem and said air passage;
- (c) an activator means for activating the dispense to dispense said metered dose comprising a latch means moveable between an engaged position in which it maintains the container in a first position and a release position which moves said container towards said nozzle to a second position to effect a release of a dose of medication whereupon upon the inhalation of the patient through said mouthpiece causes said container to move from the first position to the second position releasing a dose of medication;
- (d) a dwell means for establishing a dwell time period in which the container is in the second position so as to allow a refilling of a dose of medication for subsequent discharge.
Dependencies are inferred from the claim text.