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1. (WO2010072790) METHOD FOR DETECTING THE PRESENCE OF LIQUIDS IN A MICROFLUIDIC DEVICE, DETECTING APPARATUS AND CORRESPONDING MICROFLUIDIC DEVICE
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2010/072790 International Application No.: PCT/EP2009/067805
Publication Date: 01.07.2010 International Filing Date: 22.12.2009
IPC:
B01L 3/00 (2006.01) ,B01L 7/00 (2006.01) ,G01N 35/00 (2006.01) ,G01F 23/00 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
L
CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
3
Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
B PERFORMING OPERATIONS; TRANSPORTING
01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
L
CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
7
Heating or cooling apparatus; Heat insulating devices
G PHYSICS
01
MEASURING; TESTING
N
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
35
Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/-G01N33/148; Handling materials therefor
G PHYSICS
01
MEASURING; TESTING
F
MEASURING VOLUME, VOLUME FLOW, MASS FLOW, OR LIQUID LEVEL; METERING BY VOLUME
23
Indicating or measuring liquid level, or level of fluent solid material, e.g. indicating in terms of volume, indicating by means of an alarm
Applicants:
STMICROELECTRONICS S.R.L. [IT/IT]; Via C. Olivetti, 2 Agrate Brianza, IT (AllExceptUS)
ALESSI, Enrico [IT/IT]; IT (UsOnly)
DI TRAPANI, Giovanni [IT/IT]; IT (UsOnly)
LICCIARDELLO, Antonella [IT/IT]; IT (UsOnly)
Inventors:
ALESSI, Enrico; IT
DI TRAPANI, Giovanni; IT
LICCIARDELLO, Antonella; IT
Agent:
JORIO, Paolo; Studio Torta S.r.l. Via Viotti, 9 I-10121 Torino, IT
Priority Data:
TO2008A 00097223.12.2008IT
Title (EN) METHOD FOR DETECTING THE PRESENCE OF LIQUIDS IN A MICROFLUIDIC DEVICE, DETECTING APPARATUS AND CORRESPONDING MICROFLUIDIC DEVICE
(FR) PROCEDE DE DETECTION DE PRESENCE DE LIQUIDES DANS UN DISPOSITIF MICROFLUIDIQUE, APPAREIL DE DETECTION ET DISPOSITIF MICROFLUIDIQUE CORRESPONDANT
Abstract:
(EN) The method for detecting the presence of liquids includes detecting an initial temperature (Tl) in a channel (9) accommodating a liquid; heating the channel for a predetermined test time (Δt2); detecting a test temperature (T2); determining a temperature variation (S) on the basis of the initial temperature, the test temperature, and the test time; and comparing the temperature variation with at least one threshold (Z). Before detecting an initial temperature, an ambient temperature is read, the channel is heated to the initial temperature, and is kept at the initial temperature for a time period.
(FR) L'invention concerne un procédé de détection de présence de liquides, consistant : à détecter une température initiale (Tl) dans un canal (9) contenant un liquide ; à chauffer le canal pendant une durée d'essai prédéterminée (Δt2) ; à détecter une température d'essai (T2) ; à déterminer un changement de température (S) en fonction de la température initiale, de la température d'essai et de la durée d'essai ; et à comparer le changement de température à au moins un seuil (Z). Avant de détecter la température initiale, une température ambiante est lue, le canal est chauffé à la température initiale et maintenu à cette température pendant une certaine durée.
front page image
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PE, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
EP2382045