Clinical infusion connectors are divided into heparin caps (with needles) and needleless infusion connectors. It is an indispensable additional device for connecting an infusion channel (indwelling needle, CVC, PICC, etc.) placed in a patient's blood vessel with an infusion set or syringe. The era of needle-free infusion connector canceled the connection method of steel needle puncture rubber stopper. The needle-based system was changed to a needle-free system. After disconnecting the infusion set or syringe, a closed and wipeable sterile infusion system can be guaranteed. The advantage is that there is no need to use needles, which avoids needle stick injuries by medical personnel.


Essentials of using a needleless infusion connector



1. Use appropriate disinfectants (75% ethanol, iodophor, 2% chlorhexidine) to wipe the cross-sections and periphery of various interfaces to ensure the safe connection of sterile infusion connectors and catheters.

2. When disinfecting the infusion connector, it is emphasized that there must be a certain amount of friction and mechanical rubbing for at least 15s, depending on the design of the needleless connector, so that the microorganisms attached to the rough surface of the infusion connector can be removed.

3. Ensure that the infusion connector is in good agreement with all parts of the infusion device system and that they are tightly connected to reduce leakage and damage.

4. If there is blood, TPN and other residues in the infusion connector, the integrity is damaged or the infusion connector is removed, the infusion connector should be replaced.

5. The optimal interval time for needleless infusion connectors is uncertain, and it is recommended to replace it at least every 7d. ("Guidelines and Implementation Rules for Infusion Therapy Nursing Practice").

6. When replacing the new vascular access device (VAD) and drug delivery device, replace the additional device (infusion street) together.

7. The frequency of replacing needleless joints should not be too frequent, generally not more than 96 hours. Too frequent replacement does not have any benefit, but instead increases the risk of CLABSI.


Emphasize that 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.

6. 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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