Patent · US Active

Methods and devices for modulation of the operating point of liquid pumps in medical treatment devices

US9567992B2 · kind B2 · utility

2Cited by

5References

14Claims

0Family size

Assignee

Fresenius Medical Care Deutschland GmbH · DE

Inventors

Alexander Heide · Eppstein, DE
Pascal Kopperschmidt · Dittelbrunn, DE
Ulrich Moissl · Karben, DE
Wolfgang Wehmeyer · Tübingen, DE
Christoph Wiktor · Gelnhausen, DE

Key dates

Filing date	Apr 16, 2013
Grant date	Feb 14, 2017
Priority date	—
Expiry date	Jul 31, 2034

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF04D15/0066
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

Fluid pumps and medical treatment devices, in particular dialysis machines, include devices configured such that operating pressures and flow rates of the fluid pumps assume desired characteristics, in particular constant values or controlled profiles. The operating point of a peristaltic hose roller pump is adjusted based on an angle of rotation of a pump rotor, or by adjusting the operating point of a centrifugal pump in accordance with a profile.

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