Drug dispenser

Details Drug dispenser Drug dispenser

2007-06-05

2007-06-05

Yu, Justine R. (Department: 3771)

Surgery

Liquid medicament atomizer or sprayer

Pre-pressurized container holding medicament

C128S205230, C128S200140, C128S203150

Reexamination Certificate

active

10433861

ABSTRACT:
A drug dispenser1has a hollow body2with a housing6for a pressurised can7containing a drug and its propellant arranged on top of the body. The can has an outlet stem8received in a socket9in an internal spigot10. This has a junction with a flexible tube11, leading to a kink valve pair12,14. The tube continues on to a second internal spigot15, having a spray nozzle16just within a breathing opening5. The kink valve pair12, 14is formed as a moulding of the tube, with side wings17. Towards the ends of the wings, they have thinner portions17.1at which there are apertures18immediately adjacent the tube. The arrangement defines positions at which the tube kinks to close its through bore19. The thinner portions are provided in two positions, which provide the two kink valves. An intermediate section20of the tube, with a predetermined volume is provided between the kink valves.

REFERENCES:
patent: 3187748 (1965-06-01), Mitchell et al.
patent: 4393884 (1983-07-01), Jacobs
patent: 5826570 (1998-10-01), Goodman et al.
patent: 6422234 (2002-07-01), Bacon
patent: 6866038 (2005-03-01), Bacon
patent: 7036505 (2006-05-01), Bacon et al.
patent: 7047964 (2006-05-01), Bacon
patent: 0461281 (1991-12-01), None
patent: 9207600 (1992-05-01), None
patent: 9841254 (1998-09-01), None

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