| 摘要 |
An injection apparatus has a barrel ( 50 ) that is adapted to receive a container ( 108 ) with injection fluid ( 110 ). It further comprises a piston rod ( 98 ), provided with a thread ( 100 ), for expelling injection fluid ( 110 ) from such a container ( 108 ), which piston rod ( 98 ) is guided relative to the barrel ( 50 ) in the axial direction ( 112, 114 ). Additionally provided is a threaded part ( 122 ) whose thread ( 120 ) is in engagement with the thread ( 100 ) of the piston rod ( 98 ), which threaded part ( 122 ) is rotatable relative to the piston rod ( 98 ) and relative to the barrel ( 50 ) in order to set an injection dose, and, during an injection operation, is prevented from rotating relative to the piston rod ( 98 ). |
