| 摘要 |
A safety syringe having an elongated tubular barrel, a needle and a tubular protective sheath having one end affixed to the external surface of the barrel and normally encompassing the needle. The protective sheath has accordion-like circumferential pleats formed therein, the sheath normally extending over a substantial portion of the barrel and the needle to thereby prevent inadvertent contact of the needle with the user, the sheath being retractable to permit the needle to be used for subcutaneous dispensation of liquid contents from the barrel.
|
