A - Human Necessities – 61 – M
Patent
A - Human Necessities
61
M
182/14.3
A61M 1/03 (1980.01)
Patent
CA 1079651
ABSTRACT An extracorporeal, disposable, dialyzer for use in a variety of artificial kidney or other mass transfer systems, which includes a sheet of plastic material supporting a flattened tube of membrane material, the sheet of support material consists of a continuous sheet of contoured, substantially uniform thickness material including a series of spaced apart hollow protrusions extending outwardly from each side thereof, the summits of the hollow protrusions defining membrane support surfaces on each side of the sheet, and the summits being arranged with respect to each other in predetermined wave patterns dimensioned and arranged such that, when an elongated length of the sheet is formed into a roll having predetermined inner and outer peripheral dimensions, the wave patterns will never be directly superimposed thereby avoiding the tendency of corresponding hollow protrusions to interdigitate and occlude the fluid flow passages.
288587
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