This membrane is part of the dialysis machine that people whose organs are not functioning properly. The hemodialyzer contains a selectively permeable membrane, which is a filter that allows fluids and waste (uremic toxins) to pass through, but prevents the exchange of blood components, microorganisms and the "skeletons" of dead microorganisms (endotoxins). The fluid used to clean the blood (dialysate) flows in the opposite direction to the blood on the opposite side of the membrane, while waste and extra fluid are removed from the blood and end up in the dialysate by controlling three processes: Diffusion, ultrafiltration and osmosis.
