Patent ID: 6908450

Claim:
A syringe protective structure, comprising: a barrel, being a hollow cylinder and having an opening disposed at its front end, a barrel chamber therein, and a front blocking section and a rear blocking section inwardly protruded towards said opening proximate to a rear end of said barrel to define a blocking groove; and a relay base, being a hollow cylinder sheathed into said barrel chamber and having a base protrusion protruded from a front end of said relay base and an embedded hole disposed at the rear end of said relay base and interconnected with said base protrusion, and at least two resilient brackets being protruded from the periphery of the bottom of said base; a plunger; and a liquid medication tube; by means of pushing said plunger of said liquid medication tube and said embedded hole forward, said liquid medication tube together with a push rod and said relay base moves forward to the front of said barrel, such that the base protrudes out of the barrel opening and allows the needle to draw a liquid medication into said barrel, and said barrel is pushed forward to latch and fix said resilient brackets into said blocking groove after the injection.