An antoinjector device is disclosed which comprises a body portion and a syringe carrier, for supporting a syringe with a needle at its forward end. The syringe carrier is moveably mounted within the housing such that forward movement relative to the housing may extend the needle from a forward end of the body. The syringe carrier has a latch element arranged to cooperate with a corresponding retention feature of the body portion to releasably hold the syringe carrier in a rearward position within the body portion. A delivery mechanism is arranged to forwardly displace the syringe carrier relative to the housing and to deliver a dose of medicament from the syringe. A shrold assembly is provided at a forward end of the device. The shrold further comprises a locking arrangement which blocks releasing movement of the latch element from the retention feature when the shroud is in a first, forward position and is unlocked when the shroud is in a second, rearward position.本發明揭露一自動注射器裝置,包含一本體部;一注射器載體,用於支撐一注射器,該注射器的前端具有一針,該注射器載體可移動地安裝於該外殼中,以使相對於該外殼的向前移動可將該針自該本體的一前端延伸,以及該注射器載體包含一閂鎖元件,該閂鎖元件係設置成與該本體部對應的一保持特徵協作以將該注射器載體可釋放地抓住於該本體部中的一後位置中;一輸送機構,係設置成相對於該外殼向前移開該注射載體,且自該注射器輸送一劑藥劑;以及一護罩組件,係位於該裝置的一前端,該護罩更包含一卡鎖設置,其中,當該護罩係位於一前位置(第一位置)時,該卡鎖設置阻止該閂鎖元件,使該閂鎖元件無法自該保持特徵被釋放移動,當該護罩係位於一後位置(第二位置)時,該卡鎖設置被解鎖。2‧‧‧前組件12‧‧‧前本體部14‧‧‧蓋體30‧‧‧針護罩31‧‧‧前面32‧‧‧孔33‧‧‧前管狀部35‧‧‧臂38‧‧‧閂鎖元件39‧‧‧閂鎖元件40‧‧‧注射器載體43‧‧‧管狀部44‧‧‧護罩彈簧45‧‧‧臂46‧‧‧彈簧導引件50‧‧‧觀察窗52‧‧‧橫向構件80‧‧‧閂鎖耳片90‧‧‧狹縫
