| 摘要 |
A recirculating dialysate system for use with an artificial kidney in which the total volume of dialysate solution is controlled. After leaving the artificial kidney, the urea in the solution is removed in a zirconium phosphate column containing urease and the other waste products are removed in a carbon column containing activated carbon and hydrated zirconium oxide. The solution passes through the dialysate reservoir (or container) where it was originally introduced and where the level of solution indicates the amount of fluid removed from the body. Downstream of the dialysate reservoir, the solution is reconstituted by the addition of magnesium and calcium (removed in the zirconium phosphate column) so that these substances will not be removed from the blood in the kidney. The rate at which water passes from the blood into the dialysate solution can be controlled by controlling the pressure of the dialysate solution on the dialysate side of the kidney membrane, so that sufficient water can be removed to arrive at water balance in the patient. |
