Abstract: In an embodiment, a resettable shield-activated injection training device is provided. The training device includes an outer housing comprising a proximal end and a distal end, an inner housing comprising a proximal end and a distal end, plunger retention protrusions near the proximal end, and an asymmetrical projection at the distal end.

Abstract: In an embodiment, a resettable shield-activated injection training device is provided. The training device includes an outer housing comprising a proximal end and a distal end, an inner housing comprising a proximal end and a distal end, plunger retention protrusions near the proximal end, and an asymmetrical projection at the distal end.

Abstract: In an embodiment, a resettable shield-activated injection training device is provided. The training device includes an outer housing comprising a proximal end and a distal end, an inner housing comprising a proximal end and a distal end, plunger retention protrusions near the proximal end, and an asymmetrical projection at the distal end.

Abstract: In an embodiment, a resettable shield-activated injection training device is provided. The training device includes an outer housing comprising a proximal end and a distal end, an inner housing comprising a proximal end and a distal end, plunger retention protrusions near the proximal end, and an asymmetrical projection at the distal end.

Abstract: In one embodiment, a resettable injection training device is provided herein. The injection training device includes an outer shell comprising a proximal end and a distal end, the outer shell defining a chamber there within, and a plunger slidable within the chamber, the plunger comprising a plunger feature and one or more rail portions. The injection training device further includes a locking safety shield disposed and slidable within the chamber, the safety shield comprising a proximal end and a distal end, the distal end for interfacing with a target surface to actuate the injection training device, the safety shield comprising an extended locked position, an extended unlocked position, and a retracted position.

Abstract: In one embodiment, a resettable injection training device is provided herein. The injection training device includes an outer shell comprising a proximal end and a distal end, the outer shell defining a chamber there within, and a plunger slidable within the chamber, the plunger comprising a plunger feature and one or more rail portions. The injection training device further includes a locking safety shield disposed and slidable within the chamber, the safety shield comprising a proximal end and a distal end, the distal end for interfacing with a target surface to actuate the injection training device, the safety shield comprising an extended locked position, an extended unlocked position, and a retracted position.

Abstract: In an embodiment, a resettable shield-activated injection training device is provided. The training device includes an outer housing comprising a proximal end and a distal end, an inner housing comprising a proximal end and a distal end, plunger retention protrusions near the proximal end, and an asymmetrical projection at the distal end.

Abstract: In an embodiment, a positioning apparatus for guiding an injection device relative to a target surface having a representative plane is provided. The apparatus includes a housing defining a channel configured to receive an injection device, wherein a first angle is formed between a longitudinal axis of the channel and the representative plane of the target surface so as to guide the injection device through the channel to the target surface at the first angle, and wherein the housing comprises a stabilizing surface configured to abut the target surface to stabilize an injection according to the first angle.