Abstract: The application describes syringe carriers for medicament delivery devices such as autoinjectors. In particular, a medicament delivery device sub-assembly is described. The medicament delivery device sub-assembly has a housing extending along a longitudinal axis from a proximal end to a distal end, the housing has a tubular section with an internal surface facing towards the axis and an external surface facing away from the axis, wherein the housing has an aperture extending through the tubular section from the internal surface to the external surface; and a housing cover assembly attached in the aperture of the housing, the housing cover assembly being configured to secure a syringe in place relative to the housing.

Abstract: An actuating system for a medicament delivery device is disclosed. The actuating system includes a first clamp arranged around a plunger of the medicament delivery device for selectively retaining and releasing the plunger. A piezoelectric actuator is coupled to the first clamp for moving the plunger via a plurality of consecutive steps. An electric controller is configured for controlling the piezoelectric actuator and the first clamp independently to coordinate the moving of the plunger.