Needle shroud assembly

A needle shroud assembly for a syringe holder for a syringe having a needle, comprising:

• a barrel,
• a needle shroud captively telescoped relative to the forward end of the barrel, for movement between a retracted position in which the needle of the syringe is exposed and an extended position in which the needle of the syringe is shrouded by the needle shroud,
• a shroud bias urging said shroud towards said extended position, said needle shroud normally being in said extended position under the urging of said shroud bias and being retractable from said extended position to said retracted position by a retraction movement applied against the urging of said shroud bias,
• a separate locking element mounted on said barrel, said locking element movable with respect to both said needle shroud and said barrel between (i) a safe position in which said locking element prevents or limits the retraction movement of said needle shroud and (ii) a live position in which the retraction movement of said needle shroud is not blocked thereby,
• a locking element bias biasing said locking element towards the safe position, and
• an externally operable actuating member movable to a release position to drive said locking element to said live position
• wherein, in use, as said needle shroud moves towards the retracted position, a surface thereon cooperates with said actuating member to move the actuating member back from the release position.