On-line drying of hollow fiber membranes
AssigneeGambro Lundia AB
InventorsUlrich BAUER, Reinhold BUCK, Juergen GRAF, Helmut HILDWEIN, Bernd KRAUSE, Markus STORR, Arnd WOCHNER
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Abstract
The present invention relates to a continuous process for preparing permselective hollow fiber membranes being suitable e.g. for hemodialysis, hemodiafiltration and hemofiltration of blood which comprises a two-stage drying and tempering treatment of the hollow fiber membranes. According to a further aspect, the invention relates to a continuous process for drying permselective hollow fiber membranes on-line. The invention also relates to devices for on-line drying of permselective hollow fiber membranes.
Claims21
-4. (canceled)
A device for continuously drying and tempering hollow fiber membranes comprising a plurality of rollers disposed within a housing, the housing having an inlet and an outlet for the hollow fiber membranes and an exhaust, wherein the rollers are configured to heat the hollow fiber membranes;
- the outer surface of each roller of the plurality of rollers being individually heatable and each roller being individually driven by a drive, and wherein the rollers are positioned within the housing such that the axes of all rollers are parallel and all axes lie in a single common plane.
Dependencies are inferred from the claim text.