Importance

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Abstract

A dialysis apparatus for regulated blood dialysis includes a dialyser having flow passages for blood and dialysate, respectfully, separated by semipermeable barriers for transferring liquid from the blood to the dialysate, the blood and dialysate being driven through their respective flow passages by individually associated peristaltic pumps mounted on a common shaft and having the same pumping capacity and being respectively disposed on the inlet and outlet sides of the flow passage for dialysate through the dialyser. A tap outlet is provided between the pumps in communication with the passage. The liquid amount tapped off the tap outlet must therefore be equal to the amount of ultrafiltrate extracted from the blood, and thus the latter amount may readily be gauged and supervised.

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First Claim