Patent ID: 6413242
Filing Date: 2002-07-02
Classification: A61M

Abstract:
An injection device having a longitudinal axis for injecting fluid from a fluid container equipped with a piston, comprising an actuating device having a rod-shaped driven member having a first engagement surface, a control button being movable in an axial direction and a hollow cylindrical counter component having a second engagement surface, said counter component being substantially coaxially arranged in relation to said driven member and generally surrounding at least a portion of said driven member, said counter component comprising a bushing-shaped nut being radially split generally orthogonally with respect to the longitudinal axis of the injection device, said bushing-shaped nut being releasibly engaged to said rod-shaped driven member, and said bushing-shaped nut being twistable by a user to a position that releases said driven member from said nut so that said driven member is freely shiftable in an axial direction.