RETRACTABLE NEEDLE SYRINGE

摘要

A retractable needle syringe (20) includes a barrel assembly (22), a plunger assembly (24), and a needle assembly (26), the plunger assembly movably mounted in the barrel assembly. The needle assembly is movably mounted in the barrel assembly and engageable with the plunger assembly, so that after the retractable needle syringe has been used, the plunger assembly is engaged with the needle assembly, the plunger assembly is pulled, and the needle assembly is drawn into the barrel assembly.