Dialysis system.

摘要

A dialysis system operates to supply dialysate to a dialyzer (1) from a feed chamber (13) in response to a reduction in the volume of the feed chamber, and to recover used dialysate which flows from the dialyzer (1) into a recovery chamber (15) in response to an increase in the volume of the recovery chamber. By interlock means, e.g. a controllably volume variable chamber (14) between diaphragms (11,12) defining the chambers (13,15) the increase in the volume of the recovery chamber is greater in magnitude than the magnitude of a reduction in the volume of the feed chamber, the difference between the rates being effective to control the amount of ultrafiltration. Two or more sets of feed chambers and recovery chambers may be provided, in which case supply of the dialysate from one feed chamber is preferably initiated before the supply from one of the other feed chambers is completed, thus allowing the dialysate to be continuously supplied to the dialyzer (1).