Artificial kidney with device for filtering dialysis liquid

Details Artificial kidney with device for filtering dialysis liquid Artificial kidney with device for filtering dialysis liquid

1993-05-18

1995-07-11

Kim, John

Liquid purification or separation

With alarm, indicator, register, recorder, signal or...

Fluid pressure responsive

210 97, 210117, 210130, 210134, 210143, 2101952, 210254, 21032169, 210420, 210424, 2104331, 210435, 210929, 36441301, 36441302, 604 4, B01D 6128, B01D 6132, B01D 6510

Patent

active

054318114

ABSTRACT:
A filtration device includes an ultrafilter having an inlet chamber, an outlet chamber, and an ultrafiltration membrane separating the inlet chamber from the outlet chamber. An inlet line flow connects the inlet chamber to a source of dialysis liquid. Pressure sensors determine pressure values on opposite sides of the membrane, and a controller calculates a transmembrane pressure therefrom and compares the calculated transmembrane pressure with a predetermined threshold value. If the threshold value is reached, the controller emits a threshold signal to either warn an operator or alternatively to automatically divert flow to bypass the ultrafilter.

REFERENCES:
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patent: 4113614 (1978-09-01), Rollo et al.
patent: 4202764 (1980-05-01), Afflerbaugh et al.
patent: 4252651 (1981-02-01), Soderstrom
patent: 4298938 (1981-11-01), Wang et al.
patent: 4606826 (1986-08-01), Sano et al.
patent: 4735727 (1988-04-01), Heitmeier et al.
patent: 4753733 (1988-06-01), Ramstack
patent: 4834888 (1989-05-01), Polaschegg
patent: 4936980 (1990-06-01), Harada: Yoshimichi et al.
patent: 5147552 (1992-09-01), Hlavacek et al.

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