Title:
METHOD FOR ACCURATE AND LOW-CONSUMPTION MEMS MICROPUMP ACTUATION AND DEVICE FOR CARRYING OUT SAID METHOD
Document Type and Number:
WIPO Patent Application WO/2013/018011
Kind Code:
A3
Abstract:
The present invention describes the improvements due to alternated actuation cycles to reduce the delivery errors related to the pumping chamber elasticity, the actuator relaxation or hysteresis. The method actuates a pumping device with an optimal driving voltage profile, wherein the pumping device comprises a pumping chamber including a pumping membrane and a voltage controlled actuator connected to said membrane; the movement of said membrane being defined by three positions, namely a rest, a bottom and a top position. The method includes the actuation of the membrane with a pumping pattern including at least two different cycles : Cycle A : rest-bottom-rest-top-rest Cycle B : rest-top-rest-bottom-rest. The invention also relates to a device to carry out the method.
Inventors:
CHAPPEL ERIC (FR)
Application Number:
PCT/IB2012/053847
Publication Date:
February 13, 2014
Filing Date:
July 27, 2012
Export Citation:
Assignee:
DEBIOTECH SA (CH)
CHAPPEL ERIC (FR)
CHAPPEL ERIC (FR)
International Classes:
F04B43/02; A61M5/142; F04B43/04
Domestic Patent References:
| WO2010046728A1 | 2010-04-29 |
Foreign References:
| EP1403519A1 | 2004-03-31 | |||
| US20060097206A1 | 2006-05-11 | |||
| US20090097037A1 | 2009-04-16 | |||
| US20090099523A1 | 2009-04-16 |
Attorney, Agent or Firm:
ROLAND, André (P.O. Box 5107, Lausanne, CH)
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