| 摘要 |
The syringe shield of the present invention is comprised of a sleeve guide having a pair of fasteners with cavities formed in them that fit over the flange which are located on hypodermic syringes for grasping by the user's fingers. The fastener pieces snap together to lock the syringe guide on the syringe flange and index it so that it does not cover the volumetric indicia which is located on the syringe. The sleeve guide has elongate fingers which extend along the sides of the syringe and act as a track which a transparent tubular sleeve travels on. The sleeve has slots which overlie the sleeve guide fingers, and moves between an extended position, where it covers the needle attached to the syringe, and a retracted position, where it does not cover the needle. Detents associated with the syringe guide fingers lock the sleeve in its retracted and extended positions, although the detent which locks the sleeve in its retracted position can easily be overcome merely by pushing the sleeve towards the needle.
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