초록 ▼

A device for accurately delivering aerosolized doses of a medicament disperses a measured amount of drug in a measured volume of carrier gas and transfers the resulting aerosol to a chamber prior to inhalation by a patient. The chamber is filled efficiently with the aerosol, and inhalation by the pa

A device for accurately delivering aerosolized doses of a medicament disperses a measured amount of drug in a measured volume of carrier gas and transfers the resulting aerosol to a chamber prior to inhalation by a patient. The chamber is filled efficiently with the aerosol, and inhalation by the patient draws the aerosol dose into the lungs. This is followed by the inhalation of atmospheric air that will push the initial dose well into the lung interiors. The apparatus optimally includes a dose regulator, a counter, a clock, a dose memory and a signal to indicate when a dose is ready for inhalation. Optimal chamber designs are disclosed.

대표청구항 ▼

[ What is claimed is:] [1.] An apparatus for producing aerosolized doses of a medicament, said apparatus comprising:a reservoir that contains a pre-selected amount of a medicament;means for aerosolizing the preselected amount of medicament using pressurized gas to produce a flow of aerosolized medic

[ What is claimed is:] [1.] An apparatus for producing aerosolized doses of a medicament, said apparatus comprising:a reservoir that contains a pre-selected amount of a medicament;means for aerosolizing the preselected amount of medicament using pressurized gas to produce a flow of aerosolized medicament;means for delivering pressurized gas to the aerosolizing means;a chamber having an air inlet and a mouthpiece and being connected to receive and temporarily hold the entire flow of aerosolized medicament from the aerosolizing means for subsequent delivery to a patient, wherein gas present in the chamber will be displaced by the aerosolized medicament; anda controller including means for selectively controlling the amount of pressurized gas delivered to the aerosolizing means, whereby delivery of single doses of medicament to the chamber may be effected.