Device for nasal delivery of liquid medications

Surgery – Liquid medicament atomizer or sprayer – Gas stream aspirating medicament from reservoir

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Details

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).

REFERENCES:
patent: 4405308 (1983-09-01), Jessup
patent: 4413760 (1983-11-01), Paton
patent: 4498904 (1985-02-01), Turner et al.
patent: 4962868 (1990-10-01), Borchard
patent: 4973314 (1990-11-01), Holm et al.
patent: 5017190 (1991-05-01), Simon et al.
patent: 5104380 (1992-04-01), Holman et al.
patent: 5112317 (1992-05-01), Michel
patent: 5114406 (1992-05-01), Gabriel et al.

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