Standalone safety device for a needle of a medical device

A safety device for a needle of a medical device, the safety device comprising:

• a ring arranged to be fixed with regard to the needle
• a shield mounted on the ring by a pivot link so as to cover at least partially the needle in an initial configuration of the safety device and to give access to the needle in an operating configuration of the safety device
• a protective cap configured to cover at least partially the needle in the initial configuration
• a translation locking unit adapted to engage the protective cap and the shield to prevent a translation movement of the protective cap with regard to the ring and the shield, below a predetermined translation force
• a rotation locking unit adapted to further engage the protective cap and the shield to prevent a rotation movement of the shield with regard to the ring
• wherein:
• the translation locking unit comprises:
• at least one shield protrusion provided on the shield
• at least one cap protrusion provided on the protective cap and located proximally from the shield protrusion so as to prevent the distal movement of the protective cap in the initial configuration by abutting on the shield protrusion,
• at least part of one of the protective cap and/or of the shield is deformable under the predetermined translation force so that the cap protrusion can reach a distal side of the shield protrusion,
• the translation locking unit is configured to be disengaged by the application of the predetermined translation force on the protective cap, to allow a translation movement of the protective cap with regard to the ring and the shield, and
• the rotation locking unit is configured to be disengaged during a portion of the translation movement of the protective cap with regard to the shield.