Patent ID: 6776909
Filing Date: 2004-08-17
Classification: B01D

Abstract:
A filter device comprising:first and second flow chambers, the first chamber being defined by a plurality of capillary tube passages of a hollow fiber bundle having its ends molded into a molding compound, the second chamber being defined by a housing enclosing the hollow fiber bundle and being sealed by the molding compound from the entries and exits of the capillary tube passages of the hollow fiber bundle; and first and second connection pieces, the first connection piece being adapted to at least one of feed fluids into and feed fluids out of the first flow chamber, the second connection piece being adapted to at least one of feed fluids into and feed fluids out of the second flow chamber, the second connection piece being in fluid communication with an annular space between the housing and the end portion of the hollow fiber bundle, wherein a plurality of passages connect the annular space to the second flow chamber and are joined directly to the molding compound; wherein the housing comprises a material which does not form a tight adhesive bond with the molding compound, and the housing includes a plurality of projections which are enclosed by the molding compound.