Patent ID: 7530965

Claim:
A protective device for a needle, more particularly for a catheter introducing needle, the protective device comprising: protective means for preventing re-use of the needle, the protective means being slidably cooperable with the needle, the protective means including a safety means for placing at least one part of the safety means in front of the needle point upon retraction of the needle through the protective means and a blocking means for cooperating with the safety means for releasing the safety means from a blocked position into an unblocked position when the protective device passes from a non-operative state into an operative state, the safety means and the blocking means being located and operable for the part or parts of the safety means to remain at a distance from the needle when the part or the parts of the safety means are placed in front of the needle point during an entire retraction of the needle, the blocking means being shiftable with respect to the safety means wherein a shifting movement of the blocking means causes the safety means to be released from a blocked position into an unblocked position, and the blocking means being cooperable with the needle in such a manner that a displacement and retraction of the needle also causes the shifting movement of the blocking means.