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US 12,311,318 B2Granted
Potting process and apparatus
AssigneeGambro Lundia AB
InventorsSteffen Wagner, Christof Beck, Tobias Bauer, Leon Klinger
Life of this patent
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Abstract
The present disclosure relates to a process and an apparatus for potting hollow fiber membranes in a diffusion and/or filtration device, e.g., an ultrafilter or a capillary dialyzer.
Claims7
A process for potting hollow fiber membranes in a diffusion and/or filtration device comprising a tubular housing with a bundle of hollow fiber membranes arranged therein and at least one tubular fluid port located on the outer wall surface of the tubular housing, the process comprising the steps of
- a) dosing simultaneously, but separate from each other, a polyol component and an isocyanate component into a recess provided on an inner wall of the at least one tubular fluid port;
- b) allowing the polyol component and the isocyanate component to mix in the recess, forming a polyurethane reaction mixture;
- c) causing the polyurethane reaction mixture to flow towards a mouth of the tubular housing which has been closed with a potting lid;
- and to embed the ends of the bundle of hollow fibers in the polyurethane reaction mixture;
- and
- d) allowing the polyurethane reaction mixture to cure and form a solid potting zone sealing the mouth of the tubular housing.
3 more elements
Dependencies are inferred from the claim text.