The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Sep. 14, 2021

Filed:

Sep. 19, 2017
Applicant:

Fresenius Medical Care Deutschland Gmbh, Bad Homburg, DE;

Inventor:

Martin Thys, Gärtringen, DE;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61M 1/36 (2006.01);
U.S. Cl.
CPC ...
A61M 1/3646 (2014.02); A61M 1/365 (2014.02); A61M 1/3609 (2014.02); A61M 1/3612 (2014.02); A61M 2230/207 (2013.01);
Abstract

The present disclosure relates to a method for removing blood and/or blood mixture from an extracorporeal blood circuit with a blood filter used for the blood treatment of a patient, after completing the blood treatment session. The blood filter includes a blood chamber and a spent dialysate chamber, between which a membrane is arranged. The blood chamber is connected to an arterial blood line, a venous blood line, a dialysis inlet line, and a dialysate outlet line. The venous blood line is fluidly connected to the dialysis inlet. The method includes displacing the blood and/or the blood mixture from the blood chamber by introducing substituate into the arterial blood line, and generating a pressure difference in the blood filter with a lower pressure in the spent dialysate chamber and a higher pressure in the blood chamber.


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