Medicament delivery device

A medicament delivery device comprising:

• a main body arranged to receive a medicament cartridge;
• a needle for delivery of medicament from the medicament cartridge;
• a needle cover moveable between an initial position, in which the needle cover covers the needle, and an activated position for dispensing medicament from the medicament delivery device, wherein in the activated position the needle protrudes from a distal end of the needle cover;
• an outer frame, moveable relative to the main body between an extended position in which the outer frame extends past a distal end of the needle, and a retracted position in which the outer frame is moved towards the main body;
• and
• an attachment element comprising an adhesive region for attaching the medicament delivery device to a surface when the needle cover is in the activated position, the attachment element comprising a protective barrier covering the adhesive region,
• wherein the protective barrier is coupled to the outer frame and is removed from the attachment element to expose the adhesive region as the outer frame is moved towards the retracted position, and
• wherein the protective barrier is configured to pull the surface in a direction away from an injection site as the protective barrier is removed from the attachment element.