Needle safety device

The present disclosure relates to a needle safety device comprising an elongate central portion having a longitudinal axis. The central portion includes a sleeve. Furthermore, the device comprises a tubular protective element arranged to be movable along the longitudinal axis relative to the central portion, where the protective element comprises a contact surface for establishing pressure contact with the injection region. Further, the device comprises a tubular separable element comprising at least two locking members. Furthermore, the device includes a spring element that biases the protective element such that the contact surface is further away from the central portion along the longitudinal axis than the tip of the cannula. The protective element is configured to move to an injection position wherein the separable element is removed from the protective element and thereby separated into the locking component when the contact surface is released from pressure contact with the injection region. When the p