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EP2408931A2 - Élément d'essai pour déterminer un fluide corporel, et procédé de mesure - Google Patents

Élément d'essai pour déterminer un fluide corporel, et procédé de mesure

Info

Publication number
EP2408931A2
EP2408931A2 EP10711144A EP10711144A EP2408931A2 EP 2408931 A2 EP2408931 A2 EP 2408931A2 EP 10711144 A EP10711144 A EP 10711144A EP 10711144 A EP10711144 A EP 10711144A EP 2408931 A2 EP2408931 A2 EP 2408931A2
Authority
EP
European Patent Office
Prior art keywords
test element
detection area
functional element
body fluid
measurement
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
EP10711144A
Other languages
German (de)
English (en)
Inventor
Hans-Peter Haar
Carina Horn
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
F Hoffmann La Roche AG
Roche Diagnostics GmbH
Original Assignee
F Hoffmann La Roche AG
Roche Diagnostics GmbH
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 F Hoffmann La Roche AG, Roche Diagnostics GmbH filed Critical F Hoffmann La Roche AG
Priority to EP13171066.7A priority Critical patent/EP2636751A3/fr
Priority to EP10711144A priority patent/EP2408931A2/fr
Publication of EP2408931A2 publication Critical patent/EP2408931A2/fr
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
    • G01N33/50—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
    • G01N33/66—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving blood sugars, e.g. galactose
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
    • G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
    • G01N21/64—Fluorescence; Phosphorescence
    • G01N21/6408—Fluorescence; Phosphorescence with measurement of decay time, time resolved fluorescence
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/75—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
    • G01N21/77—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/8483—Investigating reagent band
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
    • G01N33/50—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
    • G01N33/52—Use of compounds or compositions for colorimetric, spectrophotometric or fluorometric investigation, e.g. use of reagent paper and including single- and multilayer analytical elements
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
    • G01N33/50—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
    • G01N33/52—Use of compounds or compositions for colorimetric, spectrophotometric or fluorometric investigation, e.g. use of reagent paper and including single- and multilayer analytical elements
    • G01N33/525—Multi-layer analytical elements
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/75—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
    • G01N21/77—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
    • G01N2021/7769—Measurement method of reaction-produced change in sensor
    • G01N2021/7786—Fluorescence
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/75—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
    • G01N21/77—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
    • G01N21/78—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator producing a change of colour
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T436/00—Chemistry: analytical and immunological testing
    • Y10T436/14—Heterocyclic carbon compound [i.e., O, S, N, Se, Te, as only ring hetero atom]
    • Y10T436/142222—Hetero-O [e.g., ascorbic acid, etc.]
    • Y10T436/143333—Saccharide [e.g., DNA, etc.]
    • Y10T436/144444—Glucose

Definitions

  • Test element for determining a body fluid and method for measuring
  • the invention relates to a test element for determining a body fluid, in particular for a blood sugar determination, and to a method for measuring such a test element.
  • test elements are used to determine body fluids, in particular for the detection of a body fluid as such or of an ingredient contained by it.
  • the determination of the body fluid in conjunction with such a test element is carried out with an optical evaluation.
  • Various optical measurement parameters can be evaluated here, for example the light emission in the form of fluorescence or phosphorescence or the light absorption.
  • the optical measuring methods have proven to be useful for some test elements in the form of test strips, especially in connection with the examination of small blood volumes. Even with ergonomically designed test strips, they can be used to advantage.
  • the test elements regularly have a so-called detection area, in which usually a chemical detection reaction of Whyfiüsstechnik or one of its constituents takes place with a present in the detection area of the test element reaction system, so that one or more reaction products then metrologically can be detected, in particular by means of an optical measurement.
  • the object of the invention is to provide an improved test element for determining a body fluid and an improved method for measuring the test element, with which the accuracy of the body fluid determination is optimized. This additional effort in the evaluation of the test element should be minimized or avoided altogether.
  • test element for determining a body fluid, in particular for a blood sugar determination according to independent claim 1. Furthermore, a method for measuring a test element configured for a determination of a body fluid, in particular a test element configured for a blood sugar determination, according to independent claim 12 is provided. Advantageous embodiments of the inventions are the subject of dependent subclaims.
  • the invention encompasses the idea of a test element for determining a body fluid, in particular for a blood glucose determination, with a detection area loaded with a reagent sensitive to the body fluid, wherein in the detection area and / or adjacent thereto for detecting at least one condition parameter for the detection area a condition measurement evaluable functional element is arranged.
  • the invention encompasses the idea of a method for measuring a test element configured for a determination of a body fluid, in particular a test element configured for a blood sugar determination, in which one or more state parameters are loaded for a detection area loaded with a body fluid-sensitive reagent. are detected by measuring signals for one or more in the detection area and / or adjacent thereto arranged functional elements by means of a state measurement.
  • a state measurement it is possible to efficiently obtain state information for the detection area of the test element in a direct manner experimentally.
  • the state information can then be evaluated in various ways. For example, it can be decided on the basis of the state information whether a test element is still suitable for a determination of the body fluid due to its properties in the detection area or not.
  • the test element can be discarded.
  • consideration of the state information in the actual determination of the body fluid can also be provided, for example in the form of a correction of detected measurement signals.
  • different reaction courses for the detection reaction can be taken into account.
  • the state measurement used for detecting the at least one state parameter for the detection area, with which the functional element can be evaluated, can take place in conjunction with the determination of the body fluid itself, for example for the purpose of the aforementioned measurement correction. But a separate use of the state measurement can be provided, for example, to check the quality of a test element before the determination of the body fluid.
  • the functional element may be a substance, a compound or a mixture of substances.
  • the functional element can be arranged on the test element exclusively in the detection area, exclusively adjacent thereto, or both in the detection area and adjacent thereto.
  • a preferred embodiment of the invention provides that the functional element is a functionally inert reaction element when determining the body fluid in relation to a detection reaction.
  • the functional element is not chemically altered by the detection reaction in the determination of the body fluid itself.
  • the functional element in turn is not designed to influence the reaction chemistry of the detection reaction.
  • the functional element is a functional element that is sensitive to a reaction parameter of the detection reaction when determining the body fluid.
  • a reaction parameter of the detection reaction which can be checked on the basis of an experimental evaluation of the functional element, is for example the temperature before, during or after the detection reaction in the detection area. If, for example, a light-emitting functional element is used as the functional element, then its light emission behavior during the detection reaction can be evaluated as an indicator for the temperature in the detection area. For example, the time course of the decay of a fluorescence or a phosphorescence after a previous excitation can be evaluated as a temperature indicator.
  • europium complexes such as europium chelates.
  • the fluorescence decay behavior depends on the temperature (see, for example, Katagiri et al., J. Alloys and Comp., 408-412, 809-812 (2006); Wolfbeis et al., Anal. Chem., 78, Khalil et al., Sens. Act. B. Chemical, 96, 304-314 (2003); Wolfbeis et al., Analyst, 132, 507-511 (2007)).
  • a polymer matrix for example a polyvinyl methyl ketone matrix.
  • polymer beads can be produced, which can be introduced during the production of the test element in the detection area and / or adjacent thereto.
  • one or more reaction parameters for the detection reaction in determining the body fluid can be evaluated experimentally by means of a measurement in a direct manner.
  • the functional element is a functional element sensitive to a test element parameter.
  • the test element is configured as an alternative or in addition to other embodiments with the aid of the functional element, such that parameters of the test element can be detected by means of the state measurement for the functional element.
  • the functional integrity of the test element can be checked.
  • the layer thickness of one or more layers can be evaluated by means of the state measurement with the aid of the functional element embedded in the layers.
  • the functional element may be a light-emitting element. As part of the condition measurement, the thickness of a layer can be deduced based on the intensity of the measured light emission, in which the functional element is located on the test element.
  • a measured light intensity is compared in the context of the state measurement with comparison values that were acquired for the test element at an earlier point in time, for example immediately after production. In this way it can be determined whether a layer thickness influencing change has taken place in the layer in which the functional element is located, which can make the test element unusable, for example. If a change is found which still leaves the test element in a usable state, the layer thickness information can be used to correct measurement results which are detected during the determination of the body fluid.
  • the functional element is a functional element that can be evaluated for detecting the at least one state parameter for the detection area by means of an optical state measurement.
  • the state measurement can be evaluated with the aid of a measuring technique, namely an optical measurement which is already available in evaluation devices for such test elements, for example for the detection of a color change in the determination of the body fluid.
  • the functional element may be configured to emit light in the form of fluorescence or phosphorescence. It can also be provided that the optical measuring signals detected in the course of the optical state measurement are recorded time-resolved, spectrally resolved and / or intensity-dependent. Depending on the functional element used and evaluable status information, the optical state measurement can be adapted.
  • the functional element is a functional element that can be evaluated for detecting the at least one state parameter for the detection area by means of a time-resolved optical state measurement.
  • the functional element is a functional element that can be evaluated for detecting the at least one state parameter for the detection area by means of an intensity-dependent optical state measurement.
  • the time-resolved optical state measurement and the intensity-dependent optical state measurement can, if necessary, be combined with a spectral resolution in which the detected optical measurement signals are evaluated as a function of the wavelength.
  • the functional element is at least partially mixed with the reagent. By means of the mixing of functional element and reagent, the functional element is at least partially embedded in the reagent, which further supports a direct detection of state parameters for the detection area.
  • the functional element is arranged in the detection area or adjacent thereto in a plurality of spatially separated areas.
  • it may be provided for the measurement technology used for the evaluation of the functional element to use one or more detectors in order to experimentally investigate the several spatially separated regions.
  • a plurality of optical sensors may be provided, for example in the form of sensor diodes.
  • An advantageous embodiment of the invention provides that a further functional element which can be evaluated by means of a further state measurement is arranged in the detection area or adjacent to it for detecting at least one further state parameter for the detection area.
  • the use of different functional elements can help to capture different state parameters for the detection area. Alternatively or additionally, however, it can also be provided that the same state parameters for the detection area are detected with the aid of different functional elements, so that this state information is obtained in different ways and thus with higher reliability.
  • the further functional element can be formed correspondingly to the various design options described above for the functional element.
  • the different functional elements emit light of different colors so that it can be detected and evaluated separately in a simple manner with the aid of wavelength filtering.
  • a further development of the invention provides a multilayer structure formed at least in the detection area.
  • the functional element can be arranged in one or more layers. It can also be provided in one embodiment that different functional elements are embedded in one or more layers. In this way, the test element is configurable depending on the task to capture state information for the detection area.
  • a reaction parameter for a detection reaction in determining the body fluid in the detection area is detected as the state parameter.
  • the temperature for the detection reaction in the detection region can be detected directly.
  • test element parameters that can be detected in this way are, for example, the thickness of layers of the test element, the mechanical integrity of regions of the test element or layer thickness variations. It can be provided to evaluate a measurement signal detected for a functional element in various ways in order to detect different state parameters.
  • the optical signal for example in the form of a fluorescence signal or a phosphorescence signal, can be recorded time-resolved and intensity-dependent, for example information about the temperature in the Detection area on the one hand and to gain the layer thickness on the test element on the other hand.
  • a preferred embodiment of the invention provides that the measurement signals are compared with comparison signals.
  • measured values are available as comparison signals which were acquired for the test element at an earlier point in time and / or under other ambient conditions.
  • the test element if it is is a dry chemical test element, take a measurement in the dry initial state, for example immediately after the preparation. These measurement signals can then be compared with currently detected measurement signals if a sample of the body fluid to be determined is applied to the test element or if this is intended.
  • the measurement signals can be compared with predetermined values which must be fulfilled in order to ensure the correct determination of the body fluid.
  • a reaction parameter is outside the predetermined values, for example in the form of too high or too low a temperature, it is possible to react to this in the evaluation device for the test element, for example by means of cooling or heating for the test element.
  • typical ranges for use between about 15 ° C and about 35 ° C are given for typical test elements.
  • test elements are provided which are configured for use in the range between about 5 ° C and about 50 ° C.
  • the reaction response when determining the body fluid influencing reaction parameters are changed.
  • the detection of the one or more condition parameters may be performed prior to determining the bodily fluid to then set appropriate parameters for the detection response in the evaluator for the test element.
  • a detection of the state parameters during the detection reaction may be provided as a supplement or alternatively thereto.
  • An advantageous embodiment of the invention provides that the condition measurement is carried out as an optical measurement in which optical measurement signals are measured.
  • the optical measurement is usually carried out by irradiating excitation light of a certain color or a mixed color on the detection area of the test element, whereby the one or more functional elements are excited and even light emit, for example in the form of fluorescence or phosphorescence.
  • the emitted light can then be spectrally resolved, time-resolved and / or intensity-dependent detected with the aid of one or more detectors to obtain different state or measurement information.
  • a light emission can also be excited by applying an electric current to the detection area. Chemiluminescence can also be evaluated to obtain status information.
  • FIG. 1 is a schematic representation of a multi-layer structure of a test element for determining a body fluid
  • FIG. 2 shows a schematic illustration of a measuring arrangement for optically measuring a test element for determining a body fluid
  • Fig. 4 is a graph of fluorescence curves as a function of
  • FIG. 5 is a graphic representation of the measured fluorescence decay behavior in FIG.
  • FIG. 6 is a graph of the results of the measurement in FIG. 5.
  • 9a, 9b are structural formulas of further europium complexes useful as functional elements.
  • a test element 1 shows a schematic representation of a multi-layer structure of a test element 1, which is configured for a determination of a body fluid, in particular a blood fluid. sugar determination.
  • a translucent carrier substrate 2 which is formed in one embodiment of a carrier film of polycarbonate having a thickness of about 30 microns to about 150 microns, there is an active layer 3, which in turn contains the reaction chemistry for the determination of body fluid, for example, a reagent in the form of an enzymatic system.
  • the active layer 3 is formed for example with a thickness of about 10 microns.
  • the detection reaction takes place, for example in the form of a color reaction, which can then be evaluated by means of an optical measurement in an evaluation device prepared for the test element.
  • Various reaction systems are known for the determination of a body fluid as such and with regard to their evaluability, which preferably takes place optically, and therefore will not be discussed further here.
  • a further layer 4 which in one embodiment contains pigments, for example in the form of TiO 2 or ZrO 2.
  • the further layer 4 may for example have a thickness of about 10 microns.
  • the further layer 4 serves to separate the erythrocytes.
  • the embedded pigment diffusely reflects the measuring light irradiated during the optical evaluation of the test element.
  • a network layer 5 is produced which serves to spread the blood.
  • active layer 3 functional elements 6 are embedded, which are in one possible embodiment, beads of a polymer in which Europiumkomplexe are embedded. Two embodiments of such europium complexes are shown in Figures 4a and 4b.
  • the europium complexes serve as functional elements that emit light upon optical excitation, which light can be detected by one or more optical sensors.
  • measuring light 20 is irradiated, which has a wavelength of 365 nm.
  • a light 22 diffusely reflected on the test element 1 is detected via a measuring channel 21.
  • the signal acquisition is time-resolved.
  • fluorescent light 24 of the europium complexes is detected in a time-resolved and intensity-dependent manner.
  • the measuring light 20 is selectively masked by means of an edge filter 25 wavelengths.
  • an edge filter can be used which is transparent for wavelengths> 450 nm.
  • the fluorescence signals measured with the aid of the further receiving channel 23 are then evaluated by means of an electronic evaluation device (not shown).
  • the fluorescence decay behavior can be evaluated. In this case, one or more decay times are determined for the fluorescence of the europium complexes in the test element 1 excited with the aid of the measurement light 1.
  • the phase shift between the measuring light 20 and the fluorescent light 24 can be determined by using the lock-in technique. Information about the fluorescence decay behavior can then be derived from the phase shift using conventional techniques.
  • FIG. 3 is a graphical representation of an intensity curve as a function of time for different glucose concentrations. Shown is the intensity profile for the diffuse reflection in the optical examination of a loaded with a blood sample test element using the measuring arrangement in Fig. 2. Here, the test element was loaded at time zero with a blood sample, so that the first dry test element is wet. Hereupon the reaction starts the formation of a species for which the optical examination is then carried out, for example by detecting the diffuse reflection, which is also referred to as remission. Shown are several intensity curves for different glucose concentrations.
  • Fig. 4 shows a graph of fluorescence curves as a function of time for different temperatures. It turns out that at different temperatures, namely about 10 0 C, about 20 ° C and about 30 ° C, the fluorescence behavior in its time course is different.
  • the measurement signals were detected after an optical excitation with excitation light of about 360 nm.
  • the detector was located vertically above the sample at a distance of about 3 mm.
  • the different fluorescence behavior thus makes it possible to draw conclusions about the temperature in the vicinity of the light-emitting elements.
  • the test element 1 shown in FIG. 1 means that the temperature which is present for the detection reaction when determining the body fluid in this area can be determined directly with the aid of the functional elements 6 of the active layer 3 encompassed by the detection area.
  • the conditions for the determination of the body fluid in the evaluation device can then be adjusted or changed if necessary.
  • FIG. 5 shows a graph of the measured fluorescence decay behavior as a function of time at different measurement temperatures for the europium complex functional element in FIG. 7.
  • the intensity of the fluorescence light of the europium complex was measured at 9 ° C. (upper curve), 25 ° C. (FIG. middle curve) and 37 ° C (lower curve).
  • FIG. 6 shows a graph for decay times as a function of the temperature determined from the measurement results in FIG. 5. As the temperature increases, the fluorescence decay time becomes shorter.
  • Fig. 8 shows a graph of experimentally determined glucose concentrations in blood samples as a function of known reference concentrations.
  • the large symbols (triangles, squares, circles) in Fig. 8 show uncorrected glucose concentration values for the blood samples examined.
  • a measurement correction was made in such a way that the actual ambient temperature in the glucose determination is taken into account.
  • the actual ambient temperature was determined in accordance with the method explained above with reference to FIGS. 5 and 6 from the fluorescence behavior of the added europium complexes.
  • the glucose concentration values represented by a large triangle in Fig. 8 this means that the originally assumed ambient or measurement temperature was corrected from 25 ° C to 5 ° C.
  • FIGS. 9a, 9b show structural formulas of other europium complexes useful as functional elements.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Immunology (AREA)
  • Chemical & Material Sciences (AREA)
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  • Molecular Biology (AREA)
  • General Health & Medical Sciences (AREA)
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  • Analytical Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Biochemistry (AREA)
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  • Urology & Nephrology (AREA)
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  • Microbiology (AREA)
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  • Food Science & Technology (AREA)
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  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Plasma & Fusion (AREA)
  • Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
  • Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)

Abstract

L'invention porte sur un élément d'essai destiné à déterminer un fluide corporel, en particulier pour déterminer la glycémie, comportant une zone de détection chargée d'un réactif sensible au fluide corporel, un élément fonctionnel, pouvant être exploité pour déterminer au moins un paramètre d'état pour la zone de détection, à l'aide d'une mesure d'état, étant disposé dans la zone de détection et/ou au voisinage de cette dernière. L'invention porte en outre sur un procédé pour la mesure d'élément d'essai.
EP10711144A 2009-03-20 2010-03-19 Élément d'essai pour déterminer un fluide corporel, et procédé de mesure Ceased EP2408931A2 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP13171066.7A EP2636751A3 (fr) 2009-03-20 2010-03-19 Procédé de détermination d'un liquide corporel
EP10711144A EP2408931A2 (fr) 2009-03-20 2010-03-19 Élément d'essai pour déterminer un fluide corporel, et procédé de mesure

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP09004009 2009-03-20
PCT/EP2010/001752 WO2010105850A2 (fr) 2009-03-20 2010-03-19 Élément d'essai pour déterminer un fluide corporel, et procédé de mesure
EP10711144A EP2408931A2 (fr) 2009-03-20 2010-03-19 Élément d'essai pour déterminer un fluide corporel, et procédé de mesure

Publications (1)

Publication Number Publication Date
EP2408931A2 true EP2408931A2 (fr) 2012-01-25

Family

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Family Applications (2)

Application Number Title Priority Date Filing Date
EP10711144A Ceased EP2408931A2 (fr) 2009-03-20 2010-03-19 Élément d'essai pour déterminer un fluide corporel, et procédé de mesure
EP13171066.7A Withdrawn EP2636751A3 (fr) 2009-03-20 2010-03-19 Procédé de détermination d'un liquide corporel

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EP13171066.7A Withdrawn EP2636751A3 (fr) 2009-03-20 2010-03-19 Procédé de détermination d'un liquide corporel

Country Status (8)

Country Link
US (2) US8409868B2 (fr)
EP (2) EP2408931A2 (fr)
JP (1) JP2012520994A (fr)
KR (1) KR101333844B1 (fr)
CN (1) CN102348808A (fr)
CA (1) CA2755361A1 (fr)
MX (1) MX2011009387A (fr)
WO (1) WO2010105850A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110476055A (zh) * 2017-03-23 2019-11-19 泰尔茂株式会社 成分测定装置以及成分测定装置组

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2620507A1 (fr) * 2012-01-25 2013-07-31 Roche Diagnostics GmbH Procédé pour l'évaluation de la qualité d'un élément de test
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WO2010105850A8 (fr) 2011-01-27
US20130217138A1 (en) 2013-08-22
US20120045843A1 (en) 2012-02-23
EP2636751A3 (fr) 2013-12-18
CA2755361A1 (fr) 2010-09-23
JP2012520994A (ja) 2012-09-10
WO2010105850A3 (fr) 2010-11-25
KR101333844B1 (ko) 2013-11-27
WO2010105850A2 (fr) 2010-09-23
US8409868B2 (en) 2013-04-02
EP2636751A2 (fr) 2013-09-11
CN102348808A (zh) 2012-02-08
KR20110127713A (ko) 2011-11-25

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