Kidney dialysis is simply a process where blood from the body is diverted to a dialysis machine for detoxification and drainage, and then sent back to the body after it has been purified. The kidney is like a filter, it can filter water and toxins. When a patient has acute or chronic renal failure, resulting in significantly reduced kidney function, and cannot effectively remove toxins and water, the patient will develop heart failure and cerebral edema, and even more serious complications such as hyperkalemia. These complications can be fatal for these patients. Therefore, in order to treat these complications and prevent them from occurring, then detoxification and drainage with the help of a hemodialysis machine is required. The process of hemodialysis is to drain the blood from the body through the dialysis line to the dialysis machine for adequate detoxification and drainage, and then send the blood back to the body after purification, so that the stability of the internal environment of the body can be maintained and the basic physiological needs of the patient can be guaranteed.