The embodiment of the application belongs to the technical field of medical apparatuses, and particularly relates to a
plasma separation
machine. The embodiment of the application aims to solve the problem that the
plasma separated by the related
plasma separation
machine is prone to denaturation. The plasma separation
machine comprises a box body, a centrifugal machine, a plasma output
assembly and a cooling device, the centrifugal machine, the plasma output
assembly and the cooling device are all arranged in the box body, the plasma output
assembly comprises a plasma tube and a
plasma bag, the centrifugal machine has a liquid inlet end and a liquid outlet end, the liquid inlet end is configured to receive blood from a
human body, the liquid outlet end is communicated with the
plasma bag through the plasma tube, and the cooling device is configured to cool the plasma in at least one of the
plasma bag and the plasma tube. Through the above arrangement, the cooling device cools the plasma in the plasma bag and / or the plasma tube, so as to reduce the temperature of the plasma in the plasma tube and the plasma bag, thereby preventing the plasma
protein from denaturation and the coagulation factor from losing activity, and improving the quality of the plasma in the plasma bag.