Patent · US Active

Filter module

US9254464B2 · kind B2 · utility

6Cited by

8References

16Claims

0Family size

Assignee

Fresenius Medical Care Deutschland GmbH · DE

Inventors

Torsten Keller · Prüm, DE
Franz Kugelmann · Sankt Wendel, DE
Wolfgang Wehmeyer · Tübingen, DE

Key dates

Filing date	Jul 17, 2012
Grant date	Feb 9, 2016
Priority date	—
Expiry date	Jul 26, 2032

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01D2319/025
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A filter module includes a first filter stage and a second filter stage which are substantially concentrically arranged. The first filter stage and the second filter stage each include a plurality of hollow fiber membranes having a first fiber end and a second fiber end, which are embedded in a respective casting compound. The first filter stage is a filter stage for the filtration of a first medical fluid, and the second filter stage is a filter stage for the filtration of a second medical fluid. The first filter stage has unilaterally closed fiber ends, and is surrounded by a boundary element which separates the first filter stage and the second filter stage from one another. The boundary element has at least one opening which provides fluid communication between the first filter stage and the second filter stage.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.