1. A protective device (1) for a prefilled syringe (2), soderzhaschee- support body (1.3) adapted for installation of a prefilled syringe (2), - a first device (1.1) of the needle protection disposed slidably with respect to the supporting the body (1.3), and- a second device (1.2) of the needle protection disposed slidably with respect to the supporting body (1.4) and is releasably retained in the retracted position (PR), wherein proximal movement of the first device (1.1) for protecting the needle otno eniyu to the supporting body (1.3) releases the holding of the second device (1.2) of the needle protection in the retracted position (PR), characterized in that the second device (1.2) of the needle protection comprises a helical recess (1.2.1) accommodating a projection (1.3.2) supporting the housing (1.3) so as to allow sliding parallel to its center axis (a) of the protective device (1) in the distal direction toward the advanced position (PA), wherein it is caused to rotate relative to the support body (1.3) .2. A protective device (1) according to Claim. 1, characterized in that the first device (1.1) comprises a first needle protection flange (1.1.1) and the second device (1.2) of the needle protection comprises a second flange (1.2.1), the first and second flange (1.1.1, 1.2.1) adapted to rest on the skin patsienta.3. A protective device (1) according to claim 1, characterized in that the spring means (1.5) biases the second device (1.2) of the needle protection in relation to the supporting body (1.3) towards the extended position (PA) .4. A protective device (1) according to claim 1, characterized in that the first device (1.1) of the needle protection made of opaque or pro1. Защитное устройство (1) для предварительно заполненного шприца (2), содержащее- поддерживающий корпус (1.3), приспособленный для установки предварительно заполненного шприца (2),- первое устройство (1.1) защиты иглы, расположенное с возможностью скольжения по отношению к поддерживающе