Patent · US Active

Rotational pump and methods for controlling rotational pumps

US9352077B2 · kind B2 · utility

3Cited by

4References

12Claims

0Family size

Assignee

Berlin Heart GmbH · DE

Inventors

Andreas Arndt · Dalbke, DE
Kurt Graichen · Berlin, DE
Peter Nüsser · Kleinmachnow, DE

Key dates

Filing date	May 29, 2014
Grant date	May 31, 2016
Priority date	—
Expiry date	May 29, 2034

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61M2205/3344
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A rotational pump capable of running at a rotational speed (n) having a system for direct or indirect measurement of pressure difference or flow rate across the pump, wherein a control system is designed to calculate an index of pulsatility (PI) of the pressure difference or flow rate, estimating the gradient of PI with respect to the rotational speed (dPI/dn) and regulating the dPI/dn to a pre-defined set-point or regulating the pump in a way that the dPI/dn is minimal.

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