Liquid purification or separation – With alarm – indicator – register – recorder – signal or... – Fluid pressure responsive
Patent
1995-07-11
1997-08-26
Drodge, Joseph W.
Liquid purification or separation
With alarm, indicator, register, recorder, signal or...
Fluid pressure responsive
21032165, 210335, 210434, 210641, 210644, 210646, B01D 6132, B01D 6158
Patent
active
056607229
ABSTRACT:
Described is a hemo(dia)filtration apparatus (10) with two blood filters (60) and (12) connected in series and a sterile filter (38) connected upstream thereof. The first chambers (64) and (14) and the second chambers (68) and (16) of both blood filters (60) and (12) are connected to one another, respectively, by connecting lines (72) and (74). A means (76) is arranged in one of the connecting lines (72) and (74), which generates a positive transmembrane pressure in the direction of the blood path in one of the blood filters (60, 12) and a negative transmembrane pressure in the direction of the blood path (80) in the other blood filter (12, 60). This eliminates a costly substituate line with additional devices arranged therein, since the dialyzer fluid is passed as a substituate solution through the membrane of the one blood filter directly into the blood. Furthermore, with the use of suitable devices it is possible to precisely determine and individually adjust the filtrate and substituate flows.
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Drodge Joseph W.
Fresenius AG
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