Auto-injector

An auto-injector for receiving and operating a syringe, the auto-injector comprising:

• a housing for receiving the syringe, the housing comprising a main body and a hinged door operable into an open position and a closed position, wherein the syringe is receivable within the housing when the hinged door is in the open position;
• at least one charging link connected between the main body and the hinged door, wherein a connection of the at least one charging link to the main body and/or a connection of the at least one charging link to the hinged door is a slidable connection configured to slide on opening of the hinged door and closing of the hinged door and configured to couple to at least one drive spring for priming of the at least one drive spring on the opening of the hinged door and/or the closing of the hinged door,
• the at least one drive spring being configured on activation of the auto-injector to drive a plunger driver forward within the auto-injector to operate the syringe received within the auto-injector;
• a shroud at least partially covering and extending forwards beyond a forward end of a needle of the syringe when the syringe is fitted within the auto-injector and before use of the syringe, wherein the shroud comprises a door portion and a main body portion, wherein the door portion is slidably connected to the hinged door and the main body portion is slidably connected to the main body, such that operation of the hinged door towards the open position separates the door portion from the main body portion, and wherein the door portion and the main body portion comprise keying features configured to engage when the hinged door is in the closed position such that the door portion and the main body portion move together in a forward direction and a rearward direction when the hinged door is in the closed position;
• and
• a drive latch, wherein the at least one drive spring is retained in a primed state after the opening of the hinged door and/or the closing of the hinged door, by the drive latch, and wherein the shroud is configured, on rearward movement of the shroud, to release the drive latch such that the at least one drive spring drives the plunger driver forward within the auto-injector.