Thermoforming of fiber bundles
AssigneeGambro Lundia AB
InventorsUlrich Bauer, Karsten Villis
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Abstract
The invention relates to processes for the production of capillary dialyzers. The processes involve thermoforming of bundles of hollow fiber membranes. The disclosure also relates to an apparatus for thermoforming bundles of hollow fiber membranes.
Claims13
A process for the production of a capillary dialyzer comprising a bundle of hollow fiber membranes disposed within a tubular casing, the process comprising the steps of:
- shaping an end of the bundle of hollow fiber membranes to have a circular cross-section;
- and
- compacting and melting together the fibers on the perimeter of the bundle of hollow fiber membranes to form a contiguous annular zone on the perimeter of the end of the bundle of hollow fiber membranes.
An apparatus for forming a contiguous annular zone on the perimeter of an end of a bundle of hollow fiber membranes, comprising movable individual elements which can be arranged into a configuration in which they jointly frame a cylindrical void wherein the cylindrical void is framed by three individual elements.
Dependencies are inferred from the claim text.