Patent · US Active

Hollow fiber membrane having improved diffusion properties

US11628407B2 · kind B2 · utility

0Cited by

3References

15Claims

0Family size

Assignee

Fresenius Medical Care Deutschland GmbH · DE

Inventors

Torsten Keller · Prüm, DE
Roland Sander · Sankt Wendel, DE
Igor Raiko · Bad Homburg vor der Höhe, DE
Christian Finkler · Nonnweiler, DE

Key dates

Filing date	Mar 16, 2018
Grant date	Apr 18, 2023
Priority date	—
Expiry date	Jan 2, 2039

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61M2207/00
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

The invention relates to an undulated thermostable hollow fiber membrane of reduced wall thickness, wherein the wall thickness amounts to 20 μm or greater and 30 μm or less and the waveform of the hollow fiber membrane exhibits a wavelength in the range of from more than 1 mm and less than 5 mm. In particular, the invention relates to a method for producing an undulated thermostable hollow fiber membrane of lower wall thickness.

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