Prefilled flush syringe is a high-end sterile flusher for clinical flushing and sealing of tubes, which can achieve the effect of real sage tratment and simple operation. Built-in sterile flushing solution (0.9% nomal saline). Sterile locking ring design (to ensure that the liquid is not polluted during transportation and storage). Screw design ( needle-free connection to avoid needlestick injusry). Ergonomic barrel edge design (convenient for clinical operation)