| 摘要 |
A product delivery device, preferably an injection device, comprising a reservoir module (10) and a dosing and actuating module (30) which is detachably connected to the reservoir module, said reservoir module (10) comprising: a) a front housing section (1, 3) of the product delivery device made up of a reservoir (2) for a distributable product, a blocking device (8; 38) and a first connecting device (3a, 3d), b) a piston which is displaceably received in the reservoir (2) in a direction of advancement towards a reservoir outlet, in order to distribute a product, c) and a piston rod (4) having a return-blocking device (6) which engages in a blocked position with the blocking device (8; 38) preventing the piston rod (4) from moving in relation to the front housing section (1, 3) counter to the direction of advancement, said dosing and actuating module (30) comprising: d) a rear housing section (11) of the product delivery device having a second connecting device (20, 21, 11d) which along with the first connecting device (3a, 3d) forms the detachable connection between the reservoir module (10) and the dosing and actuating module (30), e) and a dosing and drive device (12; 32) enabling a dosing movement to select a product and a distributing movement for distributing a product dose to be carried out in relation to at least one of the housing sections (1, 3, 11), f) the product delivery device also comprises a dose adjusting member (9; 39) which is displaced by the dosing and drive device (12; 32) during the distributing movement in the direction of advancement and which engages with the piston rod (4) in such a way that together with the piston rod (4) it is displaced in the direction of advancement and by the dosing movement in relation to the piston rod (4) counter to the direction of advancement. |
