Hollow fiber for dialysis and process of manufacturing
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United States of America Patent
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Apr 9, 1996
Grant Date -
N/A
app pub date -
Feb 17, 1994
filing date -
Aug 17, 1991
priority date (Note) -
Expired
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Abstract
A dialysis membrane is made of a regenerated cellulose polymer in the form of a hollow fiber with a continuous internal cavity filled essentially with a gas. The hollow fiber has a porous inner and an outer surface. The outer surface of the hollow fiber is formed by a thin skin which has fine lengthwise grooves. The inner surface of the hollow fiber is positively modified by physical and/or chemical means. The invention also includes a method for manufacturing such a dialysis membrane.
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