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1. WO2008054820 - THERMOELECTRIC SENSOR FOR ANALYTES IN A FLUID AND RELATED METHOD

Publication Number WO/2008/054820
Publication Date 08.05.2008
International Application No. PCT/US2007/023203
International Filing Date 02.11.2007
IPC
G PHYSICS
01
MEASURING; TESTING
N
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
33
Investigating or analysing materials by specific methods not covered by groups G01N1/-G01N31/131
48
Biological material, e.g. blood, urine; Haemocytometers
483
Physical analysis of biological material
497
of gaseous biological material, e.g. breath
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
B
DIAGNOSIS; SURGERY; IDENTIFICATION
5
Measuring for diagnostic purposes; Identification of persons
08
Measuring devices for evaluating the respiratory organs
G PHYSICS
01
MEASURING; TESTING
N
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
25
Investigating or analysing materials by the use of thermal means
20
by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity
48
on solution, sorption, or a chemical reaction not involving combustion or catalytic oxidation
G01N 33/497 (2006.01)
A61B 5/08 (2006.01)
G01N 25/48 (2006.01)
CPC
A61B 5/08
A61B 5/082
G01N 25/482
G01N 25/4873
G01N 33/497
Applicants
  • AHMAD, Lubna, M. [US/US]; US
Inventors
  • AHMAD, Lubna, M.; US
Agents
  • MLOTKOWSKI, Michael, J. ; ROBERTS MLOTKOWSKI & HOBBES 7918 Jones Branch Road Suite 500 McLean, VA 22102, US
Priority Data
11/593,14402.11.2006US
11/607,82902.12.2006US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) THERMOELECTRIC SENSOR FOR ANALYTES IN A FLUID AND RELATED METHOD
(FR) CAPTEUR THERMOÉLECTRIQUE POUR ANALYTES DANS UN FLUIDE ET PROCÉDÉ ASSOCIÉ
Abstract
(EN)
An apparatus is provided for sensing an analyte in a fluid. The apparatus includes a fluid collecting device configured to collect the fluid containing the analyte; a fluid input in fluid communication with the fluid collecting device configured to input the fluid containing the analyte into the fluid collecting device, an analyte interactant in fluid communication with the fluid collecting device, wherein the analyte interactant, when contacted by the analyte, reacts to cause a first change in thermal energy within the fluid collecting device; a modulator that causes a second change in thermal energy; and a thermal sensing device. Flow controls are included in various embodiments. The thermal sensing device in certain embodiments includes at least one pyroelectric device. Methods that include processing of signals generated by the device also are disclosed.
(FR)
L'invention concerne un appareil permettant de détecter un analyte dans un fluide. L'appareil contient un dispositif de collecte de fluide configuré pour recueillir le fluide contenant l'analyte ; une entrée de fluide en communication fluide avec le dispositif de collecte de fluide configurée pour injecter le fluide contenant l'analyte dans le dispositif de collecte de fluide, un agent d'interaction d'analyte en communication fluide avec le dispositif de collecte de fluide, caractérisé en ce que l'agent d'interaction d'analyte, une fois en contact avec l'analyte, réagit pour provoquer un premier changement d'énergie thermique dans le dispositif de collecte de fluide ; un modulateur provoquant un second changement d'énergie thermique ; et un dispositif de détection thermique. Des régulations de débit sont incluses dans divers modes de réalisation. Le dispositif de détection thermique dans certains modes de réalisation comporte au moins un dispositif pyroélectrique. L'invention concerne également des procédés englobant le traitement de signaux générés par le dispositif.
Also published as
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