Patent · US Expired

Micropump with heating elements for a pulsed operation

US7118351B2 · kind B2 · utility

139Cited by

14References

19Claims

0Family size

Assignee

Roche Diagnostics Operations, Inc. · US

Inventors

Carlo Effenhauser · Weinheim, DE
Herbert Harttig · Neustadt, DE
Tony Ziegler · Steinfeld, DE

Key dates

Filing date	May 12, 2003
Grant date	Oct 10, 2006
Priority date	—
Expiry date	May 7, 2024

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61B5/14532
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

The invention discloses a micropump having heating elements in which an essentially pulsed operation of the heating elements occurs by means of a control unit. The pulsed operation of the heating elements enables an exact control of the flow rate. With the aid of the control unit it is possible to keep the flow rate constant over a long period of days or to change the flow rate rapidly and precisely.

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