COVER SET FOR A DRUG APPLICATION DEVICE, KIT FOR FITTING A COVER, METHOD FOR FITTING A COVER AND DRUG APPLICATION DEVICE THAT UNDERSTANDS A COVER SET

摘要

the present invention relates to a multi-piece cap assembly (120, 200) for a drug delivery device (1), wherein the cap assembly comprises: a first cap component (131), and a second lid component (130), wherein the first lid component is mounted on the second lid component, where one of the first lid component and the second lid component is provided with a guide rail (401) and the other among the first cap component and the second cap component are provided with a guide element (403), wherein the guide rail and guide element are arranged to cooperate to form an axial guide interface between the first cap component and the second cap component, and wherein the axial guide interface is configured in such a way that the relative rotation movement between the first cap component and the second cap component is restricted or prevented. in addition, a kit for assembling a lid and a method for assembling a lid are provided, as well as a drug delivery device.