| 摘要 |
A method and apparatus for hemodialytic ultrafiltration utilizing a dialysate flow path (10), a hemodialyzer (24), a first receptacle (20) and a second receptacle (40). Fresh dialysate is supplied to the first receptacle (20) and spent dialysate is withdrawn from the second receptacle (40) at substantially the same rates. The method requires variably withdrawing fresh dialysate from the first receptacle (20) and supplying same to the hemodialyzer (24), and variably withdrawing spent dialysate from the hemodialyzer (24) and delivering same to the second receptacle (40). The dialysate levels in the receptacles are maintained at relatively constant, pre-determined levels. A controlled amount of dialysate is withdrawn from the dialysate flow path between and including the receptacles to thereby effect a withdrawal of ultrafiltrate from a patient's blood into the flow path to substantially balance the amount of dialysate withdrawn therefrom. |
