abstract |
The invention refers to a handheld injection device comprising a housing (10; 210; 410), a piston rod (30; 230; 530), defining a first longitudinal axis (I) and located within the housing (10; 210; 410), a driver (40; 241, 242; 500) coupled to the piston rod (30; 230; 530), a dose setting means (60, 70), which is rotatable about a second longitudinal axis (II) during dose setting, and optionally a power reservoir (90; 290; 10) for driving the driver (40; 241, 242; 500) and/or a release clutch (15, 45; 300; 06) preventing rotation of the driver (40; 241, 242; 500) during dose setting and allowing rotation of the driver (40; 241, 242; 500) during dose dispensing. The first longitudinal axis (I) is spaced from the second longitudinal axis (II). |