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:
Mar. 20, 2012
Filed:
Mar. 02, 2006
Alfred Gagel, Litzendorf, DE;
Daniel Hendreich, Rheinstetten, DE;
Roland Ollinger, Karlsruhe, DE;
Ralf Wamsiedler, Gochsheim-Weyer, DE;
Alfred Gagel, Litzendorf, DE;
Daniel Hendreich, Rheinstetten, DE;
Roland Ollinger, Karlsruhe, DE;
Ralf Wamsiedler, Gochsheim-Weyer, DE;
Fresenius Medical Care Deutschland GmbH, Bad Homburg, DE;
Abstract
A method and a device for determining the effective delivery rate of a peristaltic pump with which a liquid is delivered inside an elastic hose pipe or for adjusting the speed of a peristaltic pump in order to match the effective delivery rate of the pump to the desired delivery rate may be characterized in that the effective delivery rate is calculated based on the nominal speed of the pump and the pressure inside the hose pipe upstream of the pump depending on the running time of the pump. The stroke volume of the pump may be multiplied by the nominal speed of the pump and the product from the stroke volume and the speed of the pump may be corrected by a correction function, thereby determining the effective delivery rate of the pump.