What is the name of the machine that filters blood outside the body?

Dialysis is the correct term for the machine that filters blood outside the body. This process is essential for individuals whose kidneys are unable to filter waste products from the blood effectively. During dialysis, blood is drawn from the body, passed through a dialyzer—a specialized filter—where impurities such as excess salts and toxins are removed, and then the cleaned blood is returned to the body.

The importance of dialysis lies in its ability to perform the critical function of the kidneys in people suffering from renal failure or other kidney-related disorders. This treatment can be a lifesaver for those who depend on it while waiting for a kidney transplant or for those who may not be candidates for surgery.

Other options like transfusion, plasma separator, and blood purifier refer to different processes or devices related to blood treatment, but they do not specifically filter blood outside the body in the same way that dialysis does.