| 主权项 |
1. An auto-injector for administering a dose of a liquid medicament, the auto-injector comprising:
an elongate housing comprising a proximal portion and a distal portion, a distal end of the proximal portion of the housing being connected to a proximal end of the distal portion of the housing by a hinge, the proximal portion and the distal portion rotatable relative to one another about the hinge between a first position in which the proximal and distal portions are axially aligned and a second position in which the proximal and distal portions are not axially aligned, the elongate housing defining a compartment configured to receive a syringe comprising a needle in a manner such that the syringe can move axially with respect to the housing when the syringe is disposed within the compartment; a trigger member secured to the elongate housing; an interlock mechanism configured to allow the trigger member to be operated only when a force is applied to a proximal end of the auto-injector; a drive spring disposed within the housing, the drive spring arranged to be compressed by rotating the proximal and distal portions relative to one another into the second position; and an activation mechanism arranged to lock the drive spring in a compressed state and capable of, upon manual operation, releasing the drive spring, wherein the drive spring is configured to, upon manual operation of the activation mechanism and with the syringe disposed in the compartment of the housing:
advance the syringe relative to the housing from a retracted position in which the needle is covered by the housing to an extended position in which the needle extends beyond the proximal end of the auto-injector, andadminister the liquid medicament from the syringe. |
