The principle of blood filter?

It should be a blood filter, also called a hemodialysis machine. Its working principle is as follows: dialysate concentrate and dialysate water are made into qualified dialysate through dialysate supply system, and dialysate, i.e. hemodialyzer, and patient's blood derived from blood monitoring and alarm system are subjected to solute dispersion, permeation and ultrafiltration, and the acted patient's blood returns to the patient's body through blood monitoring and alarm system, and dialysate is discharged from dialysate supply system as waste liquid. Continuous circulation, so as to achieve the purpose of treatment and complete the whole dialysis process.