In addition to the above factors when purchasing a vacuum blood collection tube, the following points should also be noted:
1. The quality of the rubber stopper for the vacuum blood collection tube
Due to the application of a large number of clinical examination automatic instruments, these automatic instruments, especially blood cell analysis, generally have automatic capping devices. If the butyl rubber content of the vacuum blood collection tube stopper is insufficient, the rubber stopper will directly affect the automatic wear The service life of the capping device. It has been reported that due to the fact that the rubber stoppers for vacuum blood collection tubes produced by individual manufacturers are too hard, the aspiration rate of the automatic piercing needle is too high. The original design life of 600,000 times puncture rate has been reduced to 130,000 times, which is greatly shortened The service life of this type of instrument.
In addition, individual vacuum blood collection tube manufacturers reduce the butyl rubber content of vacuum blood collection tube stoppers in order to reduce costs. After adding a large amount of filler, the rubber stoppers will become hard again. In order to improve the hardness of the rubber stoppers, softeners have to be added. During the process, the softening agent flows into the blood collection tube and is adsorbed on the tube wall, which seriously affects the product quality.
2. Indicators such as the reliability of the label and individual requirements.
Because the label materials and label content used by various vacuum blood collection tube manufacturers cannot be unified, the labels of many manufacturers are not clear, and the labels are of poor quality and are easy to fall off. In addition, some large hospitals use their own barcode labels, together with the labels affixed by the manufacturer, to completely cover the outer wall of the vacuum blood collection tube, whether there is hemolysis, micro clots, fibrin filaments, and whether the blood collection volume is sufficient. In this case, it is recommended to purchase a vacuum blood collection tube with a transparent label to observe the blood volume and hemolysis or abnormal coagulation inside the vacuum blood collection tube.
