Patent ID: 6860866

Claim:
A dialysis machine, comprising: a dialyzer; a semipermeable membrane dividing the dialyzer into a blood chamber and a dialysis fluid chamber, the blood chamber having an inlet and an outlet, and the dialysis fluid chamber having an inlet and an outlet; an arterial blood line connected to the inlet of the blood chamber; a venous blood line connected to the outlet of the blood chamber; a dialysis fluid inlet line connected to the inlet of the dialysis fluid chamber; a dialysis fluid outlet line connected to the outlet of the dialysis fluid chamber; a first device for determining at least a first measured or predetermined flow rate and a second measured or predetermined flow rate selected from the group of a blood flow rate Qb through the blood chamber, a dialysis fluid flow rate Qd through the dialysis fluid chamber, and an ultrafiltration rate Qf; a computer unit configured to: establish at least one of a clearance and a dialysance at the first flow rate; and determine the at least one of the clearance and the dialysance at the second flow rate on the basis of the at least one of the clearance and a dialysance established at the first flow rate.