SYRINGE WITH PLUNGER ANTI-DETACHMENT MECHANISM

摘要

A plunger anti-detachment mechanism incorporates with a syringe which includes a hollow barrel, a hollow needle held at one end of the hollow barrel, and a plunger adapted to coaxially travel through the barrel. The plunger anti-detachment mechanism includes at least a locking stopper radially extended on the barrel and at least a resilient arm, having a locking latch outwardly extended therefrom, radially extended from the plunger wherein the resilient arm is adapted to move from an unlocked position to a locked position. At the unlocked position, the locking latch is moved away from the locking stopper such that the plunger is capable of freely traveling through the barrel, and that at the locked position, the locking latch is extended to the locking stopper so as to block up an axial movement of the plunger with respect to the barrel and interlock the plunger with the barrel.