The needleless connector should be replaced in the following cases:

1) The needleless connector is removed for any reason;

2) It is found that there is residual blood or other residues in the needle-free connector;

3) Before blood culture is drawn from the vascular access device (VAD);

4) When it is determined to be contaminated;

5) When in accordance with the organization's policies, procedures (current domestic guidelines), and / or practice guidelines or in accordance with the manufacturer's instructions for use.

  1. If the end of the infusion connector is a spiral mouth design, the component that is matched with it is also preferably a spiral mouth design.


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