Patent · US Active

Method for controlling a blood pump

US8123669B2 · kind B2 · utility

204Cited by

8References

8Claims

0Family size

Assignee

Abiomed Europe GmbH · DE

Inventors

Thorsten Siess · Aachen, DE
Rainer Damen · Aachen, DE

Key dates

Filing date	Apr 13, 2006
Grant date	Feb 28, 2012
Priority date	—
Expiry date	Feb 1, 2027

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61M2205/3334
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A blood pump is temporarily operated at a low rotational speed lying below a design rotational speed. This involves a risk of thrombogenesis since flow detachments may occur at blades of an impeller of the rotary blood pump. For eliminating deposits at said impeller, the rotational speed of said pump is temporarily increased to the design rotational speed. Alternatively, said pump alternately operates at said design rotational speed and a low rotational speed, and this pulsed operation is synchronized with the heart rate.

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