Global Patent Index - EP 1444042 B1

EP 1444042 B1 20060712 - METHOD FOR MOVING A FLUID OF INTEREST IN A CAPILLARY TUBE AND FLUIDIC MICROSYSTEM

Title (en)

METHOD FOR MOVING A FLUID OF INTEREST IN A CAPILLARY TUBE AND FLUIDIC MICROSYSTEM

Title (de)

VERFAHREN ZUR FÖRDERUNG EINER FLÜSSIGKEIT IN EINER KAPILLARE UND FLUIDISCHES MIKROSYSTEM

Title (fr)

PROCEDE DE DEPLACEMENT D'UN FLUIDE D'INTERET DANS UN CAPILLAIRE ET MICROSYSTEME FLUIDIQUE

Publication

EP 1444042 B1 20060712 (FR)

Application

EP 02799424 A 20020919

Priority

  • FR 0203207 W 20020919
  • FR 0112192 A 20010921

Abstract (en)

[origin: WO03026798A1] The invention concerns a method for moving a fluid of interest in a capillary tube and a fluidic microsystem. More particularly, it concerns the field of microfluidics, and in particular fluidic microsystems. The method comprises steps which consist in: providing in said capillary tube (1) at least a ferrofluid stream (3), said ferrofluid assembly (3) comprising a ferrofluid plug (5), and arranged at least at one of the two ends of the ferrofluid plug (5) and integral therewith, a liquid plug (7) non-miscible with the ferrofluid and with the fluid of interest; providing in said capillary tube, proximate to the ferrofluid assembly and on the side of the liquid plug (7) non-miscible with the ferrofluid and the fluid of interest, the fluid of interest (9); and controlling the displacement of the fluid of interest in said capillary tube by the action on said ferrofluid assembly of a magnetic field generated by a magnetic system arranged outside the capillary tube.

IPC 8 full level

B01L 3/00 (2006.01); G01N 35/08 (2006.01); G01N 37/00 (2006.01)

CPC (source: EP)

B01L 3/502784 (2013.01); B01L 2200/0673 (2013.01); B01L 2400/043 (2013.01); H01F 1/447 (2013.01); H01F 21/06 (2013.01)

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR

DOCDB simple family (publication)

WO 03026798 A1 20030403; AT 332748 T 20060815; DE 60213120 D1 20060824; DE 60213120 T2 20070111; EP 1444042 A1 20040811; EP 1444042 B1 20060712; FR 2829948 A1 20030328; FR 2829948 B1 20040709; JP 2005503572 A 20050203; JP 4106328 B2 20080625; US 2004241693 A1 20041202

DOCDB simple family (application)

FR 0203207 W 20020919; AT 02799424 T 20020919; DE 60213120 T 20020919; EP 02799424 A 20020919; FR 0112192 A 20010921; JP 2003530425 A 20020919; US 48843504 A 20040302