Membrane diffusion devices

Abstract

Abstract 1447174 Membrane diffusion apparatus CUTTER LABORATORIES Inc 23 April 1974 17774/74 Heading B1X A membrane diffusion apparatus for liquid gasification and/or dialysis comprises a stack Figure 2 of at least two different kinds of cells arranged in an order where each two successive cells are of different kinds, the first kind of cell comprises membranes overlying both sides of first frame means and the second kind of cell comprises second frame means, manifold means being in the periphery of all the cells, frame means and membranes, for conducting independently a plurality of separate fluids through the stack are for distributing a first fluid into the first kind of cells and a second fluid into the second kind of cells, the manifold means including means defining a series of small channels, Figures 6 and 7, 50, providing unrestricted uniform flow of each fluid to and from the inner spaces of the respective cells, the starch being enclosed by two end clamping means, each including conduit means connecting the manifold means until inlet and outlet parts, there being a respective inlet part in one end clamping means and a respective outlet part in the other clamping means for each fluid, so that in operation force from the pressure of at least one fluid generates a substantially constant volume of substantially uniform thickness in each first cell enabling gently turbulent uniform flow of the first fluid and enabling substantially uniform diffusion exchange between the first and second fluids. A disposable form of the above membrane diffusion apparatus is also described. The apparatus may be used for blood oxygenation and for dialysis.

Inventors

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