Folded membrane dialyzer with mechanically sealed edges

Details Folded membrane dialyzer with mechanically sealed edges Folded membrane dialyzer with mechanically sealed edges

B - Operations, Transporting

01

D

182/15

B01D 63/14 (2006.01)

Patent

CA 1068221

ABSTRACT OF THE DISCLOSURE A semipermeable membrane is folded in accordion fashion to form a stack of pleats and the edges are sealed so as to isolate the opposite surfaces of the membrane. The stack is contained within a case that provides ports for flow of blood in contact with one surface of the membrane through channels formed by the pleats and also provides ports for flow of a dialysate through channels formed by the pleats in contact with the other surface of the membrane. The serpentine side edges of the membrane are sealed by a solidified plastic material, whereas effective mechanical means are provided to seal the end edges of the folded membrane. The mechanical means include a clamping strip which biases case sealing flanges into a sealed relationship with end portions of the membrane near the end edges, which portions extend from the stack and between the sealing flanges.

247595

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