| 摘要 |
A safety syringe device includes a tube mounted to the first end of the barrel and the needle extends through the tube. A sleeve is slidably mounted to the first end of the barrel and encloses the tube therein. A metal cover is pivotably connected to an edge of the first end of the sleeve and biased to contact the needle assembly when the sleeve is not yet pulled to its operation position. The metal cover is pivoted to seal the first end of the sleeve when the sleeve is pulled to its operation after the syringe process is completed. The needle is bent by the metal cover when pushing the sleeve back toward the barrel.
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