Injection device

Details Injection device Injection device

2007-03-27

2007-03-27

Mendez, Manuel (Department: 3763)

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

Reexamination Certificate

active

10471729

ABSTRACT:
Injection devices are known for the self administration of medicament by patients, in which the medicament is typically contained within a cartridge located within the injection device. It is a problem that injection devices should be small enough to fit into a jacket pocket or a hand bag without difficulty. Also, the injection device must be of a size that enables a piston or the like used to drive the cartridge bung within the cartridge to be moved both to a maximum dispense position within the cartridge and to be fully withdrawn from the cartridge to allow for replacement of the cartridge. A drive mechanism for an injection device is disclosed in which a piston42comprises a first piston part44guided for linear movement to selectively drive a bung18and a second piston part46connected for pivoting movement with respect to the first piston part44.

REFERENCES:
patent: 3197285 (1965-07-01), Rosen
patent: 3800984 (1974-04-01), Phelan
patent: 3935883 (1976-02-01), Stach et al.
patent: 5499972 (1996-03-01), Parsons
patent: 6450082 (2002-09-01), Sawdon
patent: WO 98/01173 (1998-01-01), None
patent: WO 99/21598 (1999-05-01), None
patent: WO/01/23020 (2001-04-01), None
patent: WO 01/23020 (2001-04-01), None

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