The safety needle assembly includes a body and a wing assembly secured to the body. A grip is slidable along the exterior of the body, and a needle holder is slidable through an interior passageway in the body. The grip slides independently of the wing assembly, which is not slidable with respect to the body. The grip and the needle holder are secured to one another, so that sliding movement of the grip induces sliding movement of the needle holder. The grip and the needle holder are slidable between a distal position, in which a sharp distal tip of a needle held in the needle holder is exposed, and a proximal position, in which the sharp distal tip is not exposed.