There is a cooling and heating system in the working room of the platelet incubator. The fan distributes the cold and hot air evenly around the working room to ensure a constant temperature in the platelet incubator. The motor drives the tray to swing horizontally, and the thawed platelets are placed horizontally into the working room to solve the problem of safe storage of platelets in emergency transportation.

Vacuum freeze-drying technology is also known as sublimation drying. The principle is to freeze a sample containing water in advance, and then sublimate its moisture under vacuum. The original biological, chemical and physical properties of the freeze-dried samples remain basically the same, and they are easy to be stored for a long time. After adding water, the samples can be restored to the state before freeze-drying, and their original biochemical characteristics can be maintained. Therefore, freeze-drying technology is widely used in medicine, food, chemical, biological products and other fields.