hemodialyseapparaat

A hemodialysis machine, often referred to as a dialysis machine or artificial kidney, is a device used in hemodialysis to remove waste products and excess fluid from the blood when the kidneys are not functioning properly. This process is essential for individuals suffering from kidney failure, also known as end-stage renal disease.

The machine consists of several key components. A dialyzer, also called an artificial kidney, is the central part. Inside the dialyzer are thousands of tiny tubes or hollow fibers made of a semipermeable membrane. Blood from the patient's body is pumped through these tubes. A dialysis fluid, also known as dialysate, flows around the outside of these tubes. This fluid contains a specific balance of electrolytes and minerals.

The semipermeable membrane allows waste products like urea and creatinine, as well as excess water and salts, to pass from the blood into the dialysate. Essential substances like red blood cells and proteins are too large to pass through the membrane and remain in the blood. The clean blood is then returned to the patient's body. The machine monitors blood flow, dialysate composition and temperature, and pressure to ensure the treatment is safe and effective. It also contains pumps to move blood and dialysate and systems to mix the dialysate precisely.