A safety connector has a needle, and includes a tubular protective sleeve with a distal section, having a movable wall portion arranged in the peripheral wall thereof. The movable wall portion is selectively movable between a retracted position and a protection position. In the retracted position, the movable wall portion is aligned with the peripheral wall of the proximal section of the tubular protective sleeve. In the protection position, the movable wall portion projects into the inner space of the tubular protective sleeve.
