Surgery – Liquid medicament atomizer or sprayer – Gas stream aspirating medicament from reservoir
Patent
1993-04-27
1994-07-26
Burr, Edgar S.
Surgery
Liquid medicament atomizer or sprayer
Gas stream aspirating medicament from reservoir
12820718, 12820014, 604232, 604211, A61M 1508, A61M 1100, A61M 500, A62B 700
Patent
active
053319540
ABSTRACT:
A pen shaped device for nasal administration of doses of a liquid medicine, comprising a first and a second housing element, the first housing element (1) comprising a cartridge for the medicine, this cartridge being at one end closed by a piston (21) and being at its other end closed by a valve (7,9), which may be opened to connect the cartridge to a spray nozzle (12). When the two housing elements are rotated relatively to each other, a nut member (27) is proportional to the rotation moved along a threaded piston rod (22) to compress a helical spring (32) to act via the nut element (27) and the piston rod (22) on the piston (21) to put the content of the cartridge under pressure, which pressure may be released by opening the valve (7,9) to lead the medicine in the cartridge to the nozzle (12).
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Elk Svend
Rex Jorn
Steengaard Kim
Asher Kimberly L.
Burr Edgar S.
Novo Nordisk A S
Zelson Steve T.
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