Abstract: The disclosure describes a medicament delivery device having an actuation mechanism configured to act on a medicament container for expelling a medicament, where mechanism has a rear assembly configured to hold said actuation mechanism in a pre-tensioned state, wherein the rear assembly further comprises a transport lock mechanism a support and holding mechanism for a feedback member and activation member an activation member guard. Further an elongated housing having a proximal end and an opposite distal end, accommodating the rear assembly, the medicament container, the actuation mechanism and the activation member guard, wherein the housing further comprises guiding members able to interact with the transport lock mechanism of the rear assembly and/or a container holder for the medicament container. A biased activation member guard is axially slidable with respect to the housing from a proximal extended position to a retracted position and operably connected to a tubular coupling member.

Abstract: A sub-assembly for medicament delivery device is presented having an engageable releasing means and a medicament delivery device including the sub-assembly, where the engageable releasing means provides force for injecting medicament contained in the device when the engageable releasing means is released. To prevent the engageable releasing means from premature release during transportation of the sub-assembly to a final assembly location a snap-fit coupling mechanism can be used to tightly hold components relevant to the release of the engageable releasing means.

Abstract: A syringe holder for an autoinjector is presented having a tubular body extending around an axis in a circumferential direction and along the axis in an axial direction, the tubular body having a cut-out extending from a distal end of the tubular body and a flexible expansion joint extending across the cut-out in the circumferential direction. The tubular body can also have an inner surface and an outer surface, a first cut-out in the tubular body, the first cut-out extending in an axial direction from a proximal end of the tubular body and either a recess in the inner surface of the tubular body, the recess extending in the axial direction from the distal end of the tubular body, or a second cut-out in the tubular body, the second cut-out extending in the axial direction from a distal end of the tubular body.