WO2004034053A3 - Sensor strip having a capillary flow channel with a flow terminating interface - Google Patents

Sensor strip having a capillary flow channel with a flow terminating interface Download PDF

Info

Publication number
WO2004034053A3
WO2004034053A3 PCT/US2003/031700 US0331700W WO2004034053A3 WO 2004034053 A3 WO2004034053 A3 WO 2004034053A3 US 0331700 W US0331700 W US 0331700W WO 2004034053 A3 WO2004034053 A3 WO 2004034053A3
Authority
WO
WIPO (PCT)
Prior art keywords
flow
flow channel
terminating interface
interface
sensor strip
Prior art date
Application number
PCT/US2003/031700
Other languages
French (fr)
Other versions
WO2004034053A2 (en
Inventor
Shridhara A Karinka
Mark E Tess
Original Assignee
Abbott Lab
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Abbott Lab filed Critical Abbott Lab
Priority to CA002501693A priority Critical patent/CA2501693A1/en
Priority to EP03808162A priority patent/EP1549948A2/en
Priority to AU2003299319A priority patent/AU2003299319A1/en
Priority to JP2004543445A priority patent/JP4555686B2/en
Publication of WO2004034053A2 publication Critical patent/WO2004034053A2/en
Publication of WO2004034053A3 publication Critical patent/WO2004034053A3/en
Priority to HK05112148.1A priority patent/HK1080544A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L3/00—Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
    • B01L3/50—Containers for the purpose of retaining a material to be analysed, e.g. test tubes
    • B01L3/502—Containers for the purpose of retaining a material to be analysed, e.g. test tubes with fluid transport, e.g. in multi-compartment structures
    • B01L3/5027—Containers for the purpose of retaining a material to be analysed, e.g. test tubes with fluid transport, e.g. in multi-compartment structures by integrated microfluidic structures, i.e. dimensions of channels and chambers are such that surface tension forces are important, e.g. lab-on-a-chip
    • B01L3/502723—Containers for the purpose of retaining a material to be analysed, e.g. test tubes with fluid transport, e.g. in multi-compartment structures by integrated microfluidic structures, i.e. dimensions of channels and chambers are such that surface tension forces are important, e.g. lab-on-a-chip characterised by venting arrangements
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12Q—MEASURING OR TESTING PROCESSES INVOLVING ENZYMES, NUCLEIC ACIDS OR MICROORGANISMS; COMPOSITIONS OR TEST PAPERS THEREFOR; PROCESSES OF PREPARING SUCH COMPOSITIONS; CONDITION-RESPONSIVE CONTROL IN MICROBIOLOGICAL OR ENZYMOLOGICAL PROCESSES
    • C12Q1/00—Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions
    • C12Q1/001—Enzyme electrodes
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
    • G01N27/28—Electrolytic cell components
    • G01N27/30—Electrodes, e.g. test electrodes; Half-cells
    • G01N27/327—Biochemical electrodes, e.g. electrical or mechanical details for in vitro measurements
    • G01N27/3271—Amperometric enzyme electrodes for analytes in body fluids, e.g. glucose in blood
    • G01N27/3272—Test elements therefor, i.e. disposable laminated substrates with electrodes, reagent and channels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L2300/00—Additional constructional details
    • B01L2300/06—Auxiliary integrated devices, integrated components
    • B01L2300/0627—Sensor or part of a sensor is integrated
    • B01L2300/0645—Electrodes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L2300/00—Additional constructional details
    • B01L2300/08—Geometry, shape and general structure
    • B01L2300/0809—Geometry, shape and general structure rectangular shaped
    • B01L2300/0825—Test strips
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L2400/00—Moving or stopping fluids
    • B01L2400/04—Moving fluids with specific forces or mechanical means
    • B01L2400/0403—Moving fluids with specific forces or mechanical means specific forces
    • B01L2400/0406—Moving fluids with specific forces or mechanical means specific forces capillary forces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L2400/00—Moving or stopping fluids
    • B01L2400/06—Valves, specific forms thereof
    • B01L2400/0688—Valves, specific forms thereof surface tension valves, capillary stop, capillary break

Abstract

A device having a flow channel (14), wherein at least one flow-terminating interface (122) is used to control the flow of liquid in the flow channel. The flow-terminating interface (122a) prevents the flow of the liquid beyond the interface. In one aspect, the invention provides a sensor (100), such as, for example, a biosensor, in the form of a strip, the sensor being suitable for electrochemical or optical measurement. The sensor comprises a base layer (102) and a cover layer (116), and the base layer is separated from the cover layer by a spacer layer (112). The base layer (102), cover layer (116), and spacer layer (112) define a flow channel (114) into which a liquid sample is drawn therein and flows therethrough by means of capillary attraction. The flow of the sample is terminated by a flow-terminating interface (122a) positioned in the flow channel.
PCT/US2003/031700 2002-10-08 2003-10-07 Sensor strip having a capillary flow channel with a flow terminating interface WO2004034053A2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
CA002501693A CA2501693A1 (en) 2002-10-08 2003-10-07 Device having a flow channel
EP03808162A EP1549948A2 (en) 2002-10-08 2003-10-07 Device having a flow channel
AU2003299319A AU2003299319A1 (en) 2002-10-08 2003-10-07 Sensor strip having a capillary flow channel with a flow terminating interface
JP2004543445A JP4555686B2 (en) 2002-10-08 2003-10-07 Sensor strip having a capillary flow path including a flow termination interface
HK05112148.1A HK1080544A1 (en) 2002-10-08 2005-12-29 Device having a flow channel

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/266,548 US6939450B2 (en) 2002-10-08 2002-10-08 Device having a flow channel
US10/266,548 2002-10-08

Publications (2)

Publication Number Publication Date
WO2004034053A2 WO2004034053A2 (en) 2004-04-22
WO2004034053A3 true WO2004034053A3 (en) 2004-06-24

Family

ID=32042703

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2003/031700 WO2004034053A2 (en) 2002-10-08 2003-10-07 Sensor strip having a capillary flow channel with a flow terminating interface

Country Status (7)

Country Link
US (1) US6939450B2 (en)
EP (1) EP1549948A2 (en)
JP (1) JP4555686B2 (en)
AU (1) AU2003299319A1 (en)
CA (1) CA2501693A1 (en)
HK (1) HK1080544A1 (en)
WO (1) WO2004034053A2 (en)

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