| 摘要 |
The needle protection device comprises: a protector support ( 20 ), defining an introduction duct for a syringe body, a needle protector ( 22 ) which may be displaced relative to the protector support ( 20 ), between a retracted position and a deployed position, a compression spring ( 24 ), applied between the protector support ( 20 ) and the needle protector ( 22 ) and initial retaining means ( 38, 40, 54 ) for the needle protector ( 22 ) against the force of the compressed spring ( 24 ), said means ( 38, 40, 54 ) being released by displacement of the needle protector ( 22 ) in a release direction with relation to the protector support ( 20 ). The device further comprises mechanical locking means ( 56 ) for the needle protector ( 22 ) with relation to the protector support ( 20 ) in the release direction in the absence of a syringe body in the protector support duct and said mechanical locking means ( 56 ) may be deactivated by engaging a syringe body in the duct on the protector support ( 20 ).
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