Device for fixing and protecting a needle, this device comprising a firstand a second adhesive part (3, 8), separated by a central part (7), thefirst part (3) being intended to be fixed to the skin, opposite the chosenpenetration site for the needle, only one of the faces of the first part (3)being adhesive, this device being characterized in that it comprises acutting line (12) defining two longitudinal arms (22, 23), each of thesetwo arms (22, 23) comprising an outermost part belonging to the secondadhesive part (8).
