Surgery – Liquid medicament atomizer or sprayer
Patent
1993-01-29
1995-03-07
Burr, Edgar S.
Surgery
Liquid medicament atomizer or sprayer
12820023, 12820423, A61M 1100
Patent
active
053948661
ABSTRACT:
A portable, battery powered, hand-held system for releasing a controlled dose of aerosol medication for inhalation by a patient including a durable body and a medication cassette inserted in the durable body. The cassette includes a housing for containing a canister of medication, bears an identification code, and permits the canister to be manually depressed to release a dose, e.g., a metered dose, when out of the durable body. The durable body includes an actuator mechanism for engaging an inserted cassette and its canister, and an actuator release mechanism for controlling the actuator mechanism to depress the canister for a selected period of time to release the desired dose of medication and then the release the canister. The actuator mechanism, includes a compression spring for depressing the canister and a torsion spring for reloading the compression spring. The torsion spring is reloaded by rotating the cassette from an open position for delivering aerosol to a closed position. The actuator release mechanism includes a motor and trigger pin assembly that controls the release of the compression spring and the torsion spring, and, hence, the time that the canister is depressed.
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Ritson Carl
Rubsamen Reid M.
Aradigm Corporation
Bozicevic Karl
Burr Edgar S.
Lewis Aaron J.
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