Blood refrigerated storage and transportation, rather than cryopreservation and transportation, maintain the activity of blood cells in a low-temperature environment. Why does blood need to be refrigerated? How to refrigerate blood for preservation? What kind of blood cooler should I choose?

　 1. Why should blood be kept cold?

Refrigeration is to maintain cell viability. We all know that in medicine and vaccine related work; the cell viability temperature in vaccines is 2-8°C. The cell viability in the blood also needs to be maintained at the viability temperature. In a normal temperature environment, usually If the blood is placed in an environment of >10°C for a long time, it will cause a large amount of red blood cells to be destroyed, that is, the red blood cells will die. When the patient is transfused into this improperly preserved blood, the symptoms of hemolysis will occur.

The viability of blood is preserved in low-temperature cold storage. Low-temperature storage can extend the shelf life of blood. Blood has a low-temperature storage period in the cold storage, which is generally a one-month storage validity period. This ensures that it can be safely transferred into the patient's body and it is easier to survive in the patient's body. Ensure the life and health of patients.

　　 2. How to keep the blood cold?

Basically, modern refrigeration equipment used in blood stations, hospitals, disease control, and medical enterprises are all very advanced. Blood refrigeration will not be contaminated too much. However, many improper operations will still occur during actual operation. Cause more or less bacterial contamination. Transfusion of contaminated blood into the user's body can cause sepsis, which is fatal.

　　 Blood refrigeration not only requires strict aseptic working environment and techniques, but also a closed and closed isolation space during refrigeration. For example, vacuum test tubes used for blood sampling in hospitals are a closed environment. According to different requirements, blood products are stored in a low temperature environment of 4℃±2℃.