Medicament delivery device

Abstract

The present disclosure provides a medicament delivery device including a housing body with a generally tubular shape configured to hold a medicament delivery system and a drive assembly. The medicament delivery device further includes a delivery member cover configured to cover at least a proximal portion of the medicament delivery system and configured to move coaxially within the housing body from a first proximal position to at least a second more distal position and further configured to activate by movement from the first position towards the second position the drive assembly to initiate medicament delivery. A proximal end portion of the delivery member cover comprises an extended diameter portion configured to prevent contact between side surfaces of the device and tissue of an injection site. Alternatively, the medicament delivery device may further comprise a diameter extension part, configured to at least partially surround the delivery member cover and to engage with the proximal end portion of the delivery member cover.

Dependencies are inferred from the claim text.