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:
Jul. 15, 2025
Filed:
Jul. 03, 2018
Fresenius Medical Care Deutschland Gmbh, Bad Homburg, DE;
FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH, Bad Homburg, DE;
Abstract
A pump system for generating a volume flow of a dialysis solution in a dialysis machine, the pump system includes at least one piston pump having a piston that cooperates with a working fluid, which exerts a force on a conveying means, and in particular on a membrane. The pump system includes setting means, with which a conveying volume of the at least one piston pump per piston stroke can be reduced, with the setting means having at least one of a position-variable mechanical piston stop to reduce the piston stroke, means to reduce a quantity of the working fluid, and means to reduce a volume of a conveying chamber that cooperates with the conveying means and that contains the dialysis solution to be conveyed.