Patent · US Expired

Hemodiafiltration apparatus

US4702829A · kind A · utility

194Cited by

3References

8Claims

0Family size

Assignee

Fresenius AG · DE

Inventors

Hans-Dietrich Polaschegg · Steyr, AT
Bernd Mathieu · Spiesen, DE

Key dates

Filing date	Dec 6, 1985
Grant date	Oct 27, 1987
Priority date	—
Expiry date	Dec 6, 2005

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61M2205/705
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

Hemodiafiltration apparatus (10) comprising a closed dialysis solution cycle which has a balancing system (28), wherein into the closed cycle a first sterile filter (44) is connected from which a connecting line (74, 90, 94) leads to the venous drip chamber (114) of the blood path (102). Connected into said connecting line downstream of the first sterile filter (44) is a substituate pump (76) which is followed downstream by a second sterile filter (78).

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