Patent · US Active

Method and device for determining the effective delivery rate or adjusting the speed of a peristaltic pump

US8140274B2 · kind B2 · utility

12Cited by

5References

30Claims

0Family size

Assignee

Fresenius Medical Care Deutschland GmbH · DE

Inventors

Alfred Gagel · Litzendorf, DE
Daniel Hendreich · Rheinstetten, DE
Roland Ollinger · Karlsruhe, DE
Ralf Wamsiedler · Schweinfurt, DE

Key dates

Filing date	Mar 2, 2006
Grant date	Mar 20, 2012
Priority date	—
Expiry date	Jul 17, 2028

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF04B43/0081
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

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.

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