Blood detoxification membrane, method for producing same, and use thereof
OwnerJürgen Gensrich, Hans-Peter Fink +1inventors
InventorsJürgen Gensrich, Hans-Peter Fink, Gerd Weidel
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Abstract
The invention relates to membranes for haemodialysis, haemofiltration and/or plasmapheresis formed from substituted or unsubstituted cellulose carbamate having a carbamate nitrogen content in the range between 0.1 and 6%. The invention also relates to a method for manufacturing membranes of this type as well as to their use for blood detoxification within the framework of ultrafiltration, high flux dialysis, haemo-diafiltration and plasmapheresis of the blood.
Claims30
Method for manufacturing membranes for haemodialysis, haemofiltration and/or plasmapheresis, comprising the following method steps:
- a) dissolving cellulose carbamate having a carbamate nitrogen content of 1 to 6% in sodium hydroxide solution, followed by shaping into a membrane,
- b) coagulation with acid or alkaline solutions,
- c) washing the membrane,
- d) finishing the membrane by adding a pore-preserving processing aid which penetrates into the pores of the membrane,
- e) drying the membrane.
Membrane for haemodialysis, haemofiltration and/or plasmapheresis formed from substituted or unsubstituted cellulose carbamate having a carbamate nitrogen content in the range between 0.1 and 6%.
Dependencies are inferred from the claim text.