Dialüüsimembraan

Dialüüsimembraan refers to a semipermeable barrier used in hemodialysis and peritoneal dialysis. Its primary function is to separate the blood from the dialysis fluid, allowing for the selective passage of waste products and excess fluid from the blood into the dialysis fluid, while retaining essential substances like proteins and red blood cells within the blood. These membranes are typically made from synthetic polymers such as polysulfone, polyethersulfone, or cellulose derivatives.

The effectiveness of a dialüüsimembraan is determined by its permeability and surface area. A high surface area allows for more efficient removal of waste products. The pore size of the membrane dictates what can pass through; smaller pores allow for the removal of small molecules like urea and creatinine, while larger pores can also remove larger molecules. Dialysis membranes are designed to mimic the natural filtering function of the kidneys. They play a crucial role in managing kidney failure by removing toxins and balancing electrolytes and fluids in the body. The choice of membrane can influence the dialysis treatment's efficiency and the patient's tolerance.