Artificial kidney, Biology


Dialysis employs the process of diffusion across a semipermeable membrane to remove unwanted urea.

Dialysis is of 2 types -

1. Haemodialysis -

  1. In it machine is connected to patient's body. Blood from the artery of patient is diverted through a dialysis membrane after cooling it at O°C and mixing with an anti coagulent (Heparin).
  2. Tube is immersed in a solution, called Dialysate (isotonic)
  3. Wastes are diffuse to dialysate.
  4. Dialysate is changed.
  5. Blood from dialyser is returned to the body through a vein after warming to body temperature & mixing with antiheparin.

2. Peritoned Dialysis -

  1. Present form is continuous ambulatory peritoneal dialysis (CAPD) can be carried out any where by the patient himself.
  2. A cathater is surgically implanted in abdominal cavity.
  3. A bag contain the dialysate fluid is attached to the cathetor and the fluid is infused into abdominal cavity through the cathetor.
  4. The waste from the b.v. pass into the fluid during this peritoneal waste.
Posted Date: 10/2/2012 5:45:35 AM | Location : United States

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