EJECTOR MECHANISM, EJECTOR DEVICE, AND METHODS OF USE

摘要

An ejector device and method of delivering safe, suitable, and repeat- able dosages to a subject for topical, oral, nasal, or pulmonary use is disclosed. The ejector device includes a housing, a reservoir (1620) disposed within the housing for receiving a volume of fluid (1610), and an ejector mechanism (1601) in fluid communication with the reservoir and configured to eject a stream of droplets (1612), the ejector mechanism comprising an ejector plate (1602) coupled to a generator plate (1632) and a piezoelectric actuator (1604); the piezoelectric actuator being operable to oscillate the ejector plate, and thereby the generator plate, at a frequency and generate a directed stream of droplets.