Surgery – Liquid medicament atomizer or sprayer – Pre-pressurized container holding medicament
Patent
1990-01-03
1991-07-02
Green, Randall L.
Surgery
Liquid medicament atomizer or sprayer
Pre-pressurized container holding medicament
12820328, A61M 1100, A61M 1600
Patent
active
050278061
ABSTRACT:
Improved, compact apparatus for use in inhaling pharmaceutical aerosols. The apparatus increases aerosol deposition to the bronchiolus while it limits deposition in the oropharynx. The volumetric flow rate is limited by the use of orifices in the far end of the rigid holding chamber. The invention is also designed to make it easy for the patient to inhale the medication at the proper point in his respiratory cycle. Besides the rigid holding chamber the apparatus of the invention utilizes a unique and compact integrated flow meter to deliver to the patient a volume of unmedicated ambient air before the inhalation of the medicine containing aerosol. When the apparatus is not in use, it folds up, so that some of the integrated flow meter apparatus, and the mouthpiece are located inside the rigid holding chamber thereby minimizing the size of the device.
REFERENCES:
patent: 733027 (1903-07-01), Goldan
patent: 1695930 (1928-12-01), Schroder
patent: 3960148 (1976-01-01), Dryden
patent: 4077404 (1978-03-01), Elam
patent: 4790305 (1958-12-01), Zoltan et al.
Adams, III George K.
Bow Clark F.
DeVito Ralph J.
Harrington Walter
Hoffman Louis S.
Green Randall L.
Reichle K. M.
The Johns Hopkins University
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