Method and apparatus for determining the amount of ultrafiltration during dialysis

摘要

A dialysis device is disclosed which includes dialysis solution conduit means for passing dialysis solution through a membrane dialyzer. In accordance with this invention, controlled volumes of dialysis solution are supplied and withdrawn to and from at least a portion of the dialysis solution conduit means, plus the dialyzer connected to the conduit means. By this, the input and output of the dialysis solution to and from the conduit portion and connected dialyzer is positively controlled. The total liquid volume of the conduit portion and connected dialyzer is measured. Accordingly, changes in the total liquid volume which are not attributable to the dialysis solution input and output indicate the amount of ultrafiltration during dialysis.