| 摘要 |
To protect patients, medical and hospital personnel against the spread of infectious diseases, a molded syringe vial is equipped on its exterior with an array of tracks, rails, stops and detents which can cooperate with elements on an external shield to enable the shield to be first held on the vial in a position allowing normal usage of the medical syringe for injecting or withdrawing fluids, and to be subsequently moved to a non-releasable locked position on the vial in which the contaminated needle of the syringe is completely covered. The shield is manipulated on the vial through a series of simple longitudinal and rotational movements. The syringe lends itself to current mass production economical molding techniques with no alteration of the vial piston bore or piston.
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