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US 7,883,048 B2Granted
Method for combining hollow fibres into a bundle and hollow fibre bundle produced by said method
AssigneeFresenius Medical Care Deutschland GmbH
InventorJörn Hörmann
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Abstract
The invention relates to a method for the combining of hollow fibers to form a bundle, wherein after a batch-wise taking of continuously manufactured hollow fibers onto a reel apparatus the hollow fibers placed together to form bundles are wound around by means of a winding film and are subsequently welded. Such hollow fibers represent intermediate products in the manufacture of dialyzers for use in hemodialysis.
Claims9
A method of combining hollow fibers to form a bundle consisting of the following steps:
- batch-wise taking up of continuously manufactured hollow fibers on slowly rotating reel apparatus;
- winding around of the respective hollow fibers tensioned between two winding mandrels of the reel apparatus and combined in the manner of a bundle with a winding film such that the edge of the winding film disposed directly on the hollow fiber bundle on the winding round is folded over inwardly toward the hollow fiber bundle;
- and
- welding of the overlapping edge regions of the winding film.
1 more element
Dependencies are inferred from the claim text.