Patent · US Active

Membranes having improved performance

US8771516B2 · kind B2 · utility

3Cited by

4References

15Claims

0Family size

Assignee

GAMBRO LUNDIA AB · SE

Inventors

Bernd Krause · Liederbach, DE
Carina Zweigart · Schömberg, DE
Heinrich Behr · Hechingen, DE

Key dates

Filing date	May 19, 2010
Grant date	Jul 8, 2014
Priority date	—
Expiry date	Jul 16, 2031

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61M2205/15
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

Permselective asymmetric membranes suitable e.g. for hemodialysis, hemodiafiltration and hemofiltration of blood, and having improved performance, including improved sieving characteristics, providing enhanced removal of middle molecular weight substances, e.g. inflammatory mediators having a molecular weight between 20 and 40 kDa. The improved sieving characteristics are due to a narrow pore size distribution of the membranes created in the production process. Processes for the preparation of these membranes, devices comprising these membranes, and the use of these membranes in hemodialysis, hemodiafiltration and hemofiltration of blood, as well as in bioprocessing, plasma fractionation and the preparation of protein solutions.

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