Patent · US Active

Method for at least partially draining an extracorporeal blood flow and haemodialysis device for use with said method

US7985196B2 · kind B2 · utility

8Cited by

3References

15Claims

0Family size

Assignee

Fresenius Medical Care Deutschland GmbH · DE

Inventors

Pascal Kopperschmidt · Dittelbrunn, DE
Joachim Noack · Bad Neustadt an der Saale, DE

Key dates

Filing date	Mar 6, 2007
Grant date	Jul 26, 2011
Priority date	—
Expiry date	Jul 2, 2028

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61M1/3652
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A method and a hemodialysis machine provide for at least partial emptying of an extracorporeal blood circulation after patient blood in the circulation has been returned to the patient via an infusion liquid which displaces the blood. The method includes emptying at least a blood chamber of a hemodialyzer subdivided by a semipermeable membrane into the blood chamber and a dialysis fluid chamber without additionally connecting an arterial blood line and a venous blood line of the circulation to one another. The arterial blood line is actively or passively aerated at a first point and the venous blood line is actively or passively aerated at a second point. The infusion liquid is emptied through the membrane into the dialysis fluid chamber and then via a dialysis fluid discharge line. The method is operable by a control program that runs automatically without requiring any manual input after activation of the program.

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