Kidney dialysis machines are medical devices used to perform dialysis, a treatment for individuals whose kidneys are not functioning properly. These machines help filter waste, excess fluids, and toxins from the blood, mimicking the natural filtering process of healthy kidneys. During the procedure, blood is drawn from the body, cleaned through the machine, and then returned to the patient. Dialysis can be done in a hospital or at home, depending on the patient's needs and the type of dialysis being used, such as hemodialysis or peritoneal dialysis.