A - Human Necessities – 61 – M
Patent
A - Human Necessities
61
M
182/14
A61M 1/03 (1980.01)
Patent
CA 1122536
ABSTRACT OF THE DISCLOSURE The present invention relates to an improved design for a hemodialyzer which provides for increased contact between the blood and the dialysate fluid across the semipermeable mem- brane by increasing the blood flow path in the dialyzer unit, while at the same time increasing the blood velocity through the unit to prevent buildup of fibrin on the semipermeable membrane surfaces. The hemodialyzer of the present invention includes two independent stacks of parallel flattened semi- permeable membrane tubes disposed within a dialyzer casing. The dialysate fluid flows through the casing within the interior of the flattened tubes, while the blood flows through the casing around and between the semipermeable membrane tubes, the two independent stacks of the tubes being arranged within the casing such that the blood passes through each of the two independent stacks in succession.
308856
Meredith & Finlayson
United States (government Of The) Of America As Repres Ented By
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