Patent · US Expired

Apparatus for hemodiafiltration

US4708802A · kind A · utility

97Cited by

5References

16Claims

0Family size

Assignee

Intermedicat GmbH · CH

Inventors

Dieter Rath · Homberg (Efze), DE
Rolf Heitmeier · Kassel, DE

Key dates

Filing date	Aug 18, 1986
Grant date	Nov 24, 1987
Priority date	—
Expiry date	Aug 18, 2006

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61M1/3413
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

An apparatus for hemodiafiltration that maintains the blood concentration of the patient relatively constant. A pump is connected to a branch off the external flow path of the dialysator which pumps fluid to the circulation system of the patient to compensate for the patient's fluid loss through the hemodiafilter membrane. A suction pump which affects the transmembrane pressure across the hemodiafilter membrane is controlled to achieve the desired filtrate flow necessary to balance the return flow to the patient.

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