There are several different kinds of dialysis machines every 1 work in the same way it si the artificial kidney machine. it help to remove the unwanted product form body to those who have kidney problem .this machine work under diffusion process .this treatment is the laboring process it take more time to clean up the blood depending up the patient body condition 1's in 2 r 3 day u have take treatment    
In medicinehemodialysis (also haemodialysis) is a method that is used to achieve the extracorporeal removal of waste products such as creatinine and urea and free water from the blood when the kidneys are in a state of renal failure. Hemodialysis is one of three renal replacement therapies (the other two being renal transplant and peritoneal dialysis). An alternative method for extracorporeal separation of blood components such as plasma or cells is apheresis.

AdvantagesLow mortality rateBetter control of blood pressure and abdominal crampsLess diet restrictionBetter solute clearance effect for the daily hemodialysis: better tolerance and fewer complications with more frequent dialysis