An injector device includes an injector body that receives a syringe and an injection assembly being configured to dispense medicament from the syringe in a dispensation step. Certain types of injector devices include a sudden completion indicator that indicates when the injection is completed. Certain types of injector devices are configured to dispense two different medicament formulations having different viscosities from syringes without making any changes to the injector devices other than to switch out the syringes. Certain types of injector devices include safety arrangements that inhibit firing of the injector device until front and rear housing assemblies are disposed in predetermined rotational and axial positions relative to each other.本發明揭示一種注射裝置,其包含:一注射本體,其接納一注射器;及一注射總成,其經組態以在一施配步驟中自該注射器施配藥劑。某些類型之注射裝置包含指示注射何時完成之一突然完成指示器。某些類型之注射裝置經組態以自注射器施配具有不同黏度之兩種不同藥劑調配物且除斷開該等注射器之外該等注射裝置無需作出任何改變。某些類型之注射裝置包含安全配置,其抑制注射裝置之啟動,直至前殼體總成及後殼體總成佈置於相對於彼此之預定旋轉及軸向位置中。100‧‧‧注射裝置101‧‧‧前部/前端102‧‧‧後部/後端110‧‧‧前總成/前殼體總成120‧‧‧抓持表面121‧‧‧標記122‧‧‧深度調整器殼體130‧‧‧後總成132‧‧‧後外殼體/後外殼體總成133‧‧‧窗口孔隙134‧‧‧窗口配置/窗口135‧‧‧抓持表面137‧‧‧抓持表面/中間外殼體161‧‧‧互鎖本體170‧‧‧觸發配置/觸發器
