Dose dial and drive mechanisms suitable for use in drug...

Details Dose dial and drive mechanisms suitable for use in drug... Dose dial and drive mechanisms suitable for use in drug...

2006-08-15

2006-08-15

Mendez, Manuel A (Department: 3763)

Surgery

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

Treating material introduced into or removed from body...

C604S218000, C604S208000

Reexamination Certificate

active

07090662

ABSTRACT:
A dose dial and drive mechanism for use in a drug delivery device having a housing, a dose dial sleeve, a piston rod, a drive sleeve threadedly connected to the piston rod, a reset sleeve, which is located between the drive sleeve and the housing, and a dose display. When the dose dial sleeve travels towards the second end of the housing the reset sleeve is carried with the dose dial sleeve towards the second end of the housing resetting the dose display to a zero position and when the dose dial sleeve and/or the reset sleeve travels towards the first end of the housing, the dose dial sleeve and/or reset sleeve engage(s) with the drive sleeve thus advancing both the drive sleeve and the piston rod towards the first end of the housing.

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