| 摘要 |
<p>A safety syringe with a needle hub, which comprises: a syringe barrel, a push rod, a needle hub and a needle sheath, wherein the needle hub is installed inside the container part of the syringe in resist status. After a medicine is injected, the holding part of the push rod will enter the base of the needle hub to make the wall of the base become a conical wall gradually, and then make the holding part and concave-buckle part of the push rod connect with the linking part and positioning part of the base. After connection, the outer diameter size of the base is still a little smaller than the inner diameter size of the circular-convex part. Therefore, after use and pull out the push rod, the needle hub will be departed from the container part and stored inside the syringe barrel.</p> |
