Drive device for a piston in a container containing an...

Details Drive device for a piston in a container containing an... Drive device for a piston in a container containing an...

2007-09-25

2007-09-25

Lucchesi, Nicholas (Department: 3763)

Surgery

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

Treating material introduced into or removed from body...

C604S131000

Reexamination Certificate

active

10256276

ABSTRACT:
A drive arrangement for an injection device, including a first stage, a second stage and a drive for shifting the stages, wherein the drive acts on one of the stages to shift said one of the stages first and wherein the stage which is first shifted encounters a higher resistance than does the other stage, such that the other stage is shifted.

REFERENCES:
patent: 4950246 (1990-08-01), Muller
patent: 4973318 (1990-11-01), Holm et al.
patent: 5674204 (1997-10-01), Chanoch
patent: 5921966 (1999-07-01), Bendek et al.
patent: WO 98/47552 (1998-10-01), None
patent: WO98/47552 (1998-10-01), None

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