Hollow fiber membrane separation device

US8182686B2 · kind B2 · utility

Assignee

• Fresenius Medical Care Deutschland GmbH · DE

Inventors

• Friedrich Witthaus · Namborn, DE
• Gerhard Breith · Sankt Wendel, DE

Key dates

• Filing date: Jun 8, 2006
• Grant date: May 22, 2012
• Expiry date: Jun 17, 2028

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01D2313/2061
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A hollow fiber membrane separation device with two flow spaces, of which a first space is formed by the capillary tube passages of a hollow-fiber bundle cast at its ends into a sealing compound, and a second space is formed by a housing enclosing the fiber bundle. The first space is sealed off by caps, placed on the sealing compounds, with seals running over the peripheral areas of the sealing compounds. The housing, into which the hollow-fiber bundle is drawn, at each end of its casing has tooth-like or pinnacle-like projections formed by axial notches or indentations running out freely. The tooth-like or pinnacle-like projections have extensions extending from the sides of the projections and extending to the adjacent tooth-like or pinnacle-like projection.