Described is a needle assembly storage device (1) comprising an array (2) of needle assembly storage compartments (3) and a slider (4) movably disposed on the array (2). Each of the needle assembly storage compartments (3) includes an opening (3.1), rails (S1) disposed on opposing sides of the opening (3.1), and a latch (8) hingedly connected to the needle assembly storage compartment (3). The latch (8) has an open position (O) and a closed position (C) at least partially covering the opening (3.1). The slider (4) includes an opening (4.2) adapted to receive an injection device, arms adapted to engage the rails (S1) and a trailer (10). Movement of the slider (4) relative to the array (2) in a first direction causes the trailer (10) to move the latch (8) in the open position (O) to the closed position (C).
