Disposable Infusion Set

The clinical application of disposable infusion sets not only effectively avoids the occurrence of cross-infection, but also is convenient and affordable. But the actual use often encounter some problems, such as improper handling will cause adverse consequences, and even life-threatening. Now the experience is introduced as follows.

1. Air above the infusion pipe

infusion, if the infusion tube needle inserted into the infusion bottle stopper is opposite to the inclined plane of the vent tube needle, and the distance is relatively close, and the position of the vent needle is slightly lower than the position of the infusion tube needle, the suction force generated by the liquid flow rate in the infusion tube will suck the air bubbles generated by the vent needle into the infusion tube. In addition, the needle inserted into the infusion bottle stopper is not stable due to the thin stopper surface. If the infusion tube is affected by external forces such as body movement of the patient during infusion, the connected infusion tube needle will also move in the corresponding direction and position. Subsequently, whether the infusion tube is in the air or not also changes due to whether the moved infusion tube needle and the ventilation needle are in the position of the air intake. If the two needles are in the air intake position, air can enter the infusion tube from the needle of the infusion tube.

handling:

(1) Prevent air from entering above the infusion tube. When the needle is inserted into the bottle stopper in the infusion tube or replacement liquid, avoid the two needle slopes facing each other and keep a certain distance;

(2) During infusion, if air intake is found above the infusion tube, one of the two needles should be rotated immediately, and the direction of the needle bevel should be rotated to make the direction of the needle bevel back, which can immediately prevent air from continuing to enter.

2, liquid leakage from the air pipe

In order to prevent the outflow of liquid, the usual practice is to pull out the ventilation needle on the bottle stopper of the infusion tube or pinch it with hands or clamp the ventilation tube with pliers for a moment, and then insert the ventilation needle into or open the ventilation tube after a certain amount of liquid is infused. This is both time-consuming and wasteful.

handling:

(1) In order to prevent liquid leakage, when adding liquid medicine into the infusion bottle, pay attention to the amount of air extracted is greater than or equal to the amount of liquid medicine added;

(2) In the case of leaking liquid, the infusion tube needle can be pulled out and the infusion bottle can be inverted to make the air in the bottle escape from the ventilating needle. After the air pressure inside and outside the bottle tends to be balanced, the infusion tube needle is inserted again, and the leakage phenomenon can be stopped.

3, venous blood return

Clinical infusion sometimes after the replacement of unmedicated liquid, due to the infusion bottle of negative pressure, resulting in more blood backflow, easy to cause psychological pressure on patients. Treatment: When replacing the liquid each time, pay attention to insert the ventilation needle into the bottle stopper of the infusion bottle. After the negative pressure in the infusion bottle becomes positive pressure, insert the infusion tube needle again, which will avoid the phenomenon of blood flowing back into the infusion tube.

4, liquid drip stop and accompanied by blood reflux

sometimes infusion to the midway, liquid input to stop, blood flow to the scalp needle silicone tube. Pressurized by hand, the blood can be squeezed into the blood vessels, after let go, the blood continues to flow back. In the treatment, a smooth needle can be inserted into the bottle stopper of the infusion bottle to restore the normal state of the infusion.