An auto-injector apparatus (100) for receiving a safety syringe, the safety syringe comprising a sheath (212) deployable on actuation of a plunger (206; 210) to a position at least partially covering a needle (202) of the syringe, wherein the apparatus is configured to allow movement of the sheath to a closed position that substantially covers the needle.一種用於接收一安全針筒之自動注射器裝置,該安全針筒包含一護套,其可在一柱塞之致動下調配到至少部分地蓋住該針筒之一針頭之一位置,其中該裝置被配置成允許該護套移動到實質上蓋住該針頭之一關閉位置。