Abstract: An autoinjector having a body (1) adapted to receive a reservoir containing fluid and including a piston (P) and a needle. The body (1) has a distal portion, a middle portion, and a proximal portion, the middle portion including at least one middle window (12) making it possible, before use, to see 100% of the fluid contained in the reservoir and, after injection, to see the piston (P). The middle window (12) has an external shape of an arrow that points towards the proximal portion. The proximal portion (121) of the middle window (12) includes a triangular end portion, forming the point of the arrow, the base of the triangular end portion, remote from the point, forms the widest portion of the middle window (12).

Abstract: An autoinjector having a body (1) adapted to receive a reservoir containing fluid and including a piston (P) and a needle. The body (1) has a distal portion, a middle portion, and a proximal portion, the middle portion including at least one middle window (12) making it possible, before use, to see 100% of the fluid contained in the reservoir and, after injection, to see the piston (P). The middle window (12) has an external shape of an arrow that points towards the proximal portion. The proximal portion (121) of the middle window (12) includes a triangular end portion, forming the point of the arrow, the base of the triangular end portion, remote from the point, forms the widest portion of the middle window (12).

Abstract: An autoinjector having a body (1) approximately cylindrical in shape and to receive a reservoir containing fluid and including a piston (P) and a needle. The body (1) has a distal portion, a middle portion, and a proximal portion, and a removable cap (20) fastened to the proximal portion. The middle portion is approximately cylindrical in shape and includes a first anti-rolling mechanism (125) forming at least one middle non-cylindrical zone in the external profile of the middle portion. The removable cap (20) is approximately cylindrical in shape and includes a second anti-rolling mechanism (21) forming at least one proximal non-cylindrical zone in the external profile of the removable cap (20). In addition or optionally, the distal portion of the body (1) is approximately cylindrical in shape and includes a third anti-rolling mechanism (115) forming at least one distal non-cylindrical zone in the external profile of the distal portion.