►No need to use a needle to puncture when use the needle-free connector, which can prevent needle-stab
and transmission of blood-borne diseases;
►After end of drug infusion and remove of syringe, liquid contained in the needle-free connector automatically
rushes into the catheter, generate immediate positive pressure to prevent back-flow of blood and reduce
blocking of the catheter;
► After the end of drug infusion, not use heparin saline but normal saline to flush seal tube.