1. With latest and safe transfusion philosophy, needle free for both drug delivery and sampling.
2. The needle-free connector will keep closed and aseptic while not connecting with any other connector. The positive tip of the connector could be connector with other connector freely.
3. When pulling the needle out, the piston will supply a postive pressure towards vascular access continually ,and it will prevent blood reflux, thrombus formation and clotting block.
4. It is with powerful anti-infection ability.