Patent · US Expired

Method and apparatus for clearing toxic substances from biological fluids

US5043073A · kind A · utility

8Cited by

7References

38Claims

0Family size

Assignee

Fresenius AG · DE

Inventors

Gorik Brunner · Hannover, DE
Bernd Mathieu · Spiesen, DE

Key dates

Filing date	Oct 8, 1985
Grant date	Aug 27, 1991
Priority date	—
Expiry date	Oct 8, 2005

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01D61/38
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A method and apparatus are provided for clearing toxic substances from biological fluids by using at least one microporous diaphragm whose pores are filled with a liquid, which is immiscible with the biological fluid, a washing fluid flows past one face of the diaphragm while the biological fluid flows past the opposite face of the diaphragm. The microporous diaphragm is made of a hydrophobic polymer and the immiscible liquid is a highly refined mineral oil, a highly hydrogenated plant oil, a highly hydrogenated animal oil or, a dimethylated silicone.

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