Pen-type injector

Details Pen-type injector Pen-type injector

2011-04-05

2011-04-05

Mendez, Manuel A (Department: 3763)

Surgery

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

Treating material introduced into or removed from body...

Reexamination Certificate

active

07918833

ABSTRACT:
The present invention relates to injectors, such as pen-type injectors, that provide for administration of medicinal products from a multidose-cartridge and permit a user to set the delivery dose. The injector may include a housing, a piston rod adapted to operate through the housing, a dose dial sleeve located between the housing and the piston rod, and a drive sleeve located between the dose dial sleeve and the piston rod. The dose dial sleeve may have a helical thread of first lead and the drive sleeve may have a helical groove of second lead. The first lead of the helical thread and the second lead of the helical groove may be the same.

REFERENCES:
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patent: 5674204 (1997-10-01), Chanoch
patent: 5688251 (1997-11-01), Chanoch
patent: 6083197 (2000-07-01), Umbaugh
patent: 6221046 (2001-04-01), Burroughs et al.
patent: 6899698 (2005-05-01), Sams
patent: 2002/0052578 (2002-05-01), Moller
patent: 2004/0059299 (2004-03-01), Moller et al.
patent: 0 937 476 (1999-08-01), None
patent: 0 937 476 (1999-08-01), None
patent: 937 471 (1999-08-01), None
patent: WO 91/14467 (1991-10-01), None
patent: WO 99/38554 (1999-08-01), None
EP 0937471A2 (Walters et al.), Aug. 25, 1999.

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