Patent · US Active

Method and apparatus for monitoring the supply of replacement fluid during an extracorporeal treatment of blood

US8216478B2 · kind B2 · utility

22Cited by

0References

24Claims

0Family size

Assignee

Fresenius Medical Care Deutschland GmbH · DE

Inventors

Joachim Noack · Bad Neustadt an der Saale, DE
Joerg Dreyhsig · Sankt Wendel, DE

Key dates

Filing date	Oct 31, 2008
Grant date	Jul 10, 2012
Priority date	—
Expiry date	Jul 28, 2029

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61M1/3612
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

An apparatus and a method for monitoring the supply of replacement fluid during an extracorporeal treatment of blood is disclosed. Detection of the supply of replacement fluid upstream or downstream of the dialyser or filter is based on a measurement of the optical or physical density of the blood or of a constituent of blood in the extracorporeal circulation. To detect pre- or post-dilution, the blood flow rate and/or the replacement rate and/or the flow rate of the fluid removed from the blood through the dialyser membrane is altered, and the density of the blood or of the constituent of blood is measured upstream and/or downstream of the dialyser. Additionally, an apparatus for treating blood with an apparatus for monitoring the supply of replacement fluid is disclosed.

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