Multistage hemodiafiltration/hemofiltration method and apparatus
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United States of America Patent
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Jul 11, 2006
Grant Date -
Apr 8, 2004
app pub date -
Dec 20, 2001
filing date -
Dec 20, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
In a blood dialysis system including a source of substitution fluid (10) and a blood dialysis machine, a hemodiafiltration system having a first dialyzer (1) including a first blood compartment (4) having a first blood inlet which receives blood to be cleaned and a first blood outlet which discharges partially diafiltered blood and a first dialysate compartment (5) having a first dialysate inlet and a first dialysate outlet, means (8) for mixing the partially diafiltered blood with substitution fluid from the source to obtain a blood/substitution fluid mixture, and a second hemofilter (2) including a second blood compartment (11) having a second blood inlet which receives the blood/substitution fluid mixture and a second blood outlet which discharges filtered blood and a second permeate compartment (12) having a second permeate outlet.
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