Patent · US Expired

Method for returning blood from a blood treatment device, and device for carrying out this method

US7488301B2 · kind B2 · utility

22Cited by

5References

21Claims

0Family size

Assignee

Fresenius Medical Care Deutschland GmbH · DE

Inventors

Josef Beden · Mainz, DE
Joachim Manke · Nordhausen, DE

Key dates

Filing date	Jul 22, 2003
Grant date	Feb 10, 2009
Priority date	—
Expiry date	Mar 20, 2024

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61M2205/12
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A method for the return of blood from a blood treatment apparatus, preferably from a dialysis apparatus, uses a pumped substituate fluid to displace the blood. A substituate pump contained in the treatment apparatus displaces the blood by means of the correspondingly transported substituate fluid until it is detected in corresponding detectors that substituate fluid is flowing back in the line instead of blood. Once the transported substituate fluid has been detected, the blood volume is further displaced in a controlled manner until it has reached the line outlet of the corresponding line.

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