| 摘要 |
The present invention relates to a device for guiding a rod-shaped output member (401) of an injection device with an exchangeable cartridge containing injection liquid, the rod-shaped output member (401) having grooves (402) extending in lines in the axial direction on the outer circumference and, between the grooves (402), lines (403) with a structured surface, a guide element made up of at least two parts being provided, both parts of which are of annular shape and each have grooves (301, 302) extending in lines in the axial direction on their inner circumference and, between the grooves, lines (303, 304) with a structured surface, the two parts of the guide element being turned relative to one another in a working position in such a way that the grooves of the one part are continued in the axial direction by the structured surface of the other part.
|
