| 摘要 |
Disclosed is a pulled-back replaceable-needle safe self-destroying syringe, comprising a cylinder (1) provided with a core rod (2) inside, wherein a position close to the upper end portion of the core rod (2) is sleeved with a rubber plug (3). The cylinder neck of the upper end portion of the cylinder (1) is provided inside with a replaceable-needle elastic cushioning upper needle base (4) located at the upper part and a lower needle base (5) located at the lower part, both being integrally connected to form a whole in a sleeve-clamp manner. The upper part of the upper needle base (4) forms a needle base sleeve (6) with a 6:100 taper. The syringe is rational in structure, simple in operation, stable in working conditions, and has the characteristics of safety and practicality. |
