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Failure analysis and treatment of disposable infusion set

Views:2     Author:Site Editor     Publish Time: 2021-04-25      Origin:Site

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

Disposable-Infusion-Set-with-Free-Needle-Injection-Port-Blood-Transfusion-Device (2)

 1. Air enters above the infusion tube


In infusion, if the needle of the infusion tube after inserting the stopper of the infusion bottle is opposite to the needle of the ventilation tube, the distance is relatively close, and the position of the ventilation needle is slightly lower than the position of the needle of the infusion tube, the suction force generated by the liquid flow rate in the infusion tube will be reduced The air bubbles generated by the vent needle are sucked into the infusion tube. In addition, the needle inserted into the stopper of the infusion bottle is not stable due to the thin surface of the stopper. If the infusion tube is affected by external forces such as the patient's body movement during the infusion, the needle of the infusion tube connected to it will also have the corresponding direction and position. On the move. Subsequently, whether the infusion tube takes in air or not also changes depending on whether the moved infusion tube needle and the ventilation needle are in the air intake position. If the two needles are in the air-intakeable position, air can enter the infusion tube from the needle of the infusion tube.


  deal with:


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


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


2.the liquid leaks from the air pipe


In order to prevent liquid from flowing out, the usual method is to remove the ventilation needle from the stopper of the infusion vial or pinch the ventilation tube with your hands or clamp the ventilation tube for a while, and then insert the ventilation needle into or open the ventilation tube after a certain amount of liquid has been infused. . Doing so will both waste time and cause waste.


  deal with:


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


(2) In the case of liquid leakage, the needle of the infusion tube can be removed and the infusion bottle can be turned upside down to make the air in the bottle escape from the vent needle. After the air pressure inside and outside the bottle tends to balance, insert the needle of the infusion tube again, and the leakage phenomenon can be stopped.


3.venous blood return


Clinical infusion sometimes changes the unmedicated liquid, because the negative pressure in the infusion bottle is large, causing more blood backflow, which is easy to cause psychological pressure on the patient. Treatment: When changing the liquid, pay attention to inserting the vent needle into the stopper of the infusion bottle. After the negative pressure in the infusion bottle becomes positive, insert the needle in the infusion tube to avoid the phenomenon of blood flowing back into the infusion tube.


4.The dripping of liquid stops and is accompanied by blood reflux


Sometimes when the infusion is halfway, the fluid infusion stops, and the blood continuously flows back into the silicone tube of the scalp needle. After applying pressure by hand, the blood can be squeezed into the blood vessel, and when the hand is released, the blood continues to flow back. In terms of handling, another unobstructed needle can be inserted into the stopper of the infusion bottle to restore the normal state of the infusion.


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