AUTO-INJECTOR WITH FLEXIBLE ELEMENTS PROVIDED IN THE HOUSING AND A CAP WITH A NEEDLE SHEATH

摘要

There is provided an auto-injector (1) for a syringe that is suitable for use in the injected delivery of drug to a patient. The auto-injector comprises a housing (20) defining a housing cavity arranged for receipt of a syringe; and a needle delivery aperture (25) through which the hollow needle of the syringe protrudes during dispensing of the liquid drug formulation. The auto-injector further comprises a needle sheath (70) for covering of the needle tip of the syringe; and a removable cap (60) for the needle delivery aperture of the housing. The removable cap defines an inwardly projecting needle sheath cover for covering the needle sheath that includes one or more gripping elements arranged for gripping of the needle sheath; and provided to the housing, one or more flexible elements (80) extending into said housing cavity thereof. The needle sheath cover and/or the one or more flexible elements are shaped for interaction with each other such that on moving the removable cap away from the capped position the one or more flexible elements are in urging contact with the needle sheath cover to thereby urge the one or more gripping elements into gripping contact with the needle sheath.