Hemoperfusion is a blood purification technique in which the patient’s blood is introduced into a perfusion device containing a solid adsorbent, which is connected to a replacement tank or filter at the same time to remove toxins, drugs or metabolic wastes from the blood that cannot be dialyzed by adsorption. It is mainly used to resuscitate patients with drug and toxin poisoning, and can also be used in combination with hemodialysis to remove large molecule toxins from patients with chronic renal failure, or to remove inflammatory factors and toxins from the blood of patients with severe sepsis. The operation time of hemoperfusion is usually 2-4 hours, and after the adsorption reaches saturation within a certain period of time, the adsorption tank needs to be replaced to achieve better adsorption effect.