Patent ID: 11865307
Assignee: SANOFI-AVENTIS DEUTSCHLAND GMBH
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. A method of operating a medicament injection device having a rotatable cap, the method comprising:
rotating the rotatable cap, thereby causing a releasable arrangement between a main body and the rotatable cap to cooperate to cause the rotatable cap to move axially in a proximal direction during rotational movement of the rotatable cap, thereby causing a needle holder to become attached to a medicament cartridge and causing a needle of the needle holder to move axially in the proximal direction so as to penetrate a separable barrier of the medicament cartridge, as the rotatable cap is rotated up to a predefined point, wherein the releasable arrangement comprises a guide element and a slotted link; and
rotating the rotatable cap beyond the predefined point, thereby causing the releasable arrangement to cooperate to cause the rotatable cap to move axially in a distal direction during the rotational movement of the rotatable cap beyond the predefined point.