Hemodialysis fluid is formed by mixing dialysis powder and or dialysis concentrate with dialysis water in a certain ratio. It is used to maintain electrolyte and acid-base balance in the blood and to remove metabolic waste.

Hemodialyser is made of polymer material, which can remove toxins from the body, discharge excessive water from the body in combination with the dialysis machine, and correct hyperkalemia and metabolic acidosis together with the hemodialysis fluid, thus replacing part of the kidney's function, commonly known as "artificial kidney".

Hemodialysis is the process of drawing the patient's blood out of the body and flowing through the hemodialyzer. Blood and dialysis fluid are exchanged for substances through the hollow fibers of the dialyzer, and then the blood is returned to the patient's body. It can remove excessive harmful substances and water from the body and replace the kidneys to maintain the relative stability of the internal environment of the body.