Patent ID: 8192407

Claim:
Needle protection device ( 2 ) comprising: a protector support ( 20 ) delimiting a conduit for receiving a syringe body ( 4 ); a needle protector ( 22 ) delimiting an end opening ( 60 ) for passage of a needle ( 6 ) and a needle protection cap ( 19 ) and having at its other end radial protuberances ( 50 ) forming a finger rest, which needle protector ( 22 ) is movable relative to the protector support ( 20 ) between a retracted position and an extended position; a compression spring ( 24 ) applied between the protector support ( 20 ) and the needle protector ( 22 ); and means ( 38 , 40 , 50 ) for initial fixing of the needle protector ( 22 ) counter to action of the compression spring ( 24 ), which means ( 38 , 40 , 50 ) are releasable by displacement of the needle protector ( 22 ) relative to the protector support ( 20 ) in a releasing direction, characterized in that the device comprises mechanical means ( 45 , 62 ) for locking the needle protector ( 22 ) relative to the protector support ( 20 ) in the releasing direction, which mechanical means are activated under action of the needle protection cap ( 19 ) engaged in the end opening ( 60 ) in the needle protector ( 22 ) by a cooperation of the mechanical means ( 45 , 62 ) with the needle protection cap ( 19 ), and the mechanical means ( 45 , 62 ) are deactivatable by releasing the needle protection cap ( 19 ) outside the end opening ( 60 ) in the needle protector ( 22 ).