Liquid purification or separation – Casing divided by membrane into sections having inlet – Energy recovery from treated liquid
Patent
1977-05-23
1979-11-27
Spear, Jr., Frank A.
Liquid purification or separation
Casing divided by membrane into sections having inlet
Energy recovery from treated liquid
55158, 422 48, B01D 3100
Patent
active
041760697
ABSTRACT:
A device for exchanging substances, in particular, an oxygenator or dialyzer, comprises a stack of semipermeable membranes each having a plurality of longitudinally oriented capillaries embedded therein which open at each end. A porous tissue mass is disposed between adjacent membranes and define transverse gas flow paths therethrough from one side of said stack to the opposite side. A non-porous member closes off the top and the bottom of the stack and each longitudinal end of the tissue mass between adjacent membranes. A connecting piece is arranged at each end of the stack to provide for a flow path, for example, for blood, into the capillaries of each membrane and a similar connecting piece is arranged at the opposite end for the off-flow of the blood. Connecting pieces are arranged at each side for the inflow of a gas, for example, oxygen, into the tissues and for the outflow of the gas on the opposite side of the stack. The gas will diffuse through the tissues and the interspaces of the membranes and due to the partial differential pressure, carbon dioxide will diffuse from the blood space into the gas space. The membranes may be designed with any selective permeability in accordance with the substances to be transferred for use as a dialyzer or ureal substances, a dialyzate is directed through the gas space.
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Kage Henning
Metz Hellmut
LICENTIA Patent-Verwaltungs-G.m.b.H.
Spear, Jr. Frank A.
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