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.
Patent No.:
Date of Patent:
Dec. 09, 2025
Filed:
Apr. 21, 2021
Fresenius Medical Care Deutschland Gmbh, Bad Homburg, DE;
Alfred Gagel, Litzendorf, DE;
Burkard Keller, Wuerzburg, DE;
Peter Kloeffel, Nuedlingen, DE;
Martin Thys, Grettstadt, DE;
FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH, Bad Homburg, DE;
Abstract
The invention relates to an extracorporeal blood treatment apparatus comprising a blood treatment unitthat is divided by a semipermeable membraneinto a first compartment, which is part of a fluid system II, and a second compartment, which is part of an extracorporeal blood circuit I. The invention also relates to a method for operating a blood treatment apparatus of this kind. The blood treatment apparatus according to the invention has a pressure-based checking devicewhich interacts with the control unitfor a valve deviceand is designed such that a fluid connection between an upstream portionA and a downstream portionB of a flow pathfor a special operating mode can only be established if the pressure-based checking devicedetects an operating state in which it is ensured that fluid in the flow pathfor a special operating mode flows towards a flow pathleading to a drain. This ensures that the fluid in question can only flow into the flow paththat leads to the drain, and cannot get into another flow pathin which fresh treatment fluid is located.