JP2016532114A - 試験測定シーケンス中に誤った測定信号を判定する方法及びシステム - Google Patents
試験測定シーケンス中に誤った測定信号を判定する方法及びシステム Download PDFInfo
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- 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
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- 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
- G01N27/3273—Devices therefor, e.g. test element readers, circuitry
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- 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
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- 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
- G01N27/3274—Corrective measures, e.g. error detection, compensation for temperature or hematocrit, calibration
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
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- 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
- G01N27/3275—Sensing specific biomolecules, e.g. nucleic acid strands, based on an electrode surface reaction
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Abstract
【選択図】図8
Description
本出願は、パリ条約並びに米国特許法119条及び120条の下、先行出願された2013年8月29日出願の米国特許出願第14/013,516号(代理人整理番号DDI5274USNP)に対する優先権を主張し、当該の出願は参照により本願に組み込まれる。
式1 グルコース+GO(ox)→グルコン酸+GO(red)
式2 GO(red)+2Fe(CN)6 3−→GO(ox)+2Fe(CN)6 4−
T.1 D−グルコース+GDH(ox)→グルコン酸+GDH(red)
T.2 GDH(red)+2Fe(CN)6 3−→GDH(ox)+2Fe(CN)6 4−
i2は第2の出力試験信号値であり、
i3は第3の出力試験信号値であり、
項A、p、及びzは実験で導出された較正定数であり得る。
式2 ipc−2ipb=−iss
irは開始時点から約4.4秒〜約5秒で測定された出力信号であり、
ilは開始時点から約1.4秒〜約4秒で測定された出力信号であり、本明細書の実施形態では、式8.1のi2(Corr)は式8.2と置き換えることができる。
Claims (11)
- 電極の上に試薬を配置した少なくとも2つの前記電極を含む複数の電極を有するバイオセンサーと、
電源、記憶装置、及び前記バイオセンサーの前記複数の電極に接続されたマイクロコントローラであって、
前記試薬を有する流体試料中でグルコースの電気化学的反応の試験測定シーケンスを開始するために前記グルコースを有する前記流体試料が前記少なくとも2つの電極に近接して堆積されるとき、前記少なくとも2つの電極に信号を送り、
一連の時間間隔にわたる電気化学的反応の間に少なくとも1つの電極からの出力信号を測定して各時間間隔の前記出力信号の大きさを得、
前記試験測定シーケンス間の所定の時間窓内での少なくとも2つの連続した時間間隔のそれぞれの出力信号の大きさの差として出力の差を決定し、
前記出力の差が所定の閾値よりも大きい場合はインデックス値をインデックスの前の値及び前記出力の差の両方の合計と等しいものとして増分させ、インデックスが所定のインデックス値以上である場合は、エラーを告知するか、さもなければ前記出力信号からグルコース値を計算して前記グルコース値を告知する
ように構成されたマイクロコントローラを含む測定器と、
を含む、グルコース測定システム。 - 前記所定の時間窓が試験シーケンス開始時点の約1秒後から前記試験シーケンス開始時点の約8秒後までを含む、請求項1に記載のシステム。
- 前記所定のインデックス値が約5を含み、前記所定の閾値が約300を含む、請求項1に記載のシステム。
- 前記所定の時間窓が試験シーケンス開始時点の約2秒後から前記試験シーケンス開始時点の約8秒後までを含む、請求項1に記載のシステム。
- 前記所定のインデックス値が約5を含み、前記所定の閾値が約150を含む、請求項1に記載のシステム。
- 少なくとも2つの電極及び前記電極上に配置された試薬を有するバイオセンサーと、前記バイオセンサー並びに記憶装置及び電源に接続するように構成されたマイクロコントローラを有するグルコース計測器とを用いて流体試料からグルコース値を決定する方法であって、前記方法が
前記バイオセンサーの前記少なくとも2つの電極に隣接して流体試料を堆積させて試験測定シーケンスを開始する工程と、
入力信号を前記流体試料に印加してグルコースから酵素的副生成物への変換を開始する工程と、
試験シーケンス開始時点からの所定の時間窓にわたる前記流体試料からの出力信号トランジェントを測定する工程であって、前記測定する工程が一連の時間間隔にわたる電気化学的反応の間に少なくとも1つの電極から出力信号をサンプリングして各時間間隔の前記出力信号の大きさを得る工程を含む、工程と、
前記試験測定シーケンス間の前記所定の時間窓内での少なくとも2つの連続した時間間隔のそれぞれの出力信号の大きさの差として出力の差を測定する工程と、
前記出力の差が0よりも大きい場合はインデックス値をインデックスの前の値及び前記出力の差の両方の合計と等しいものとして設定し、さもなければ、前記インデックスが所定のインデックス値以上である場合は、エラーを告知するか、さもなければ前記流体試料のグルコース値を計算して前記グルコース値を告知する工程と、を含む、方法。 - 前記グルコース値を計算する工程が、試験シーケンスの開始時点から始まる所定の時間間隔に隣接する前記出力信号の大きさを測定する工程、及び方程式
を用いる工程を含み、式中、G1がグルコース測定値を含み、
であり、
であり、
irが開始時点から約4.4秒〜約5秒で測定された出力信号であり、
ilが開始時点から約1.4秒〜約4秒で測定された出力信号であり、
A、B、C、p、及びzgrは製造パラメータである、請求項6に記載の方法。 - Aが約0.19を含み、Bが約0.68を含み、Cが約2を含み、pが約0.52を含み、zgrが約2を含む、請求項7に記載の方法。
- 前記所定の時間窓が試験シーケンス開始時点の約1秒後から前記試験シーケンス開始時点の約8秒後までを含む、請求項6に記載の方法。
- 前記所定のインデックス値が約2マイクロアンペアを含み、前記所定の閾値が約0.5マイクロアンペアを含む、請求項6に記載の方法。
- 前記所定の時間窓が試験シーケンス開始時点の約2秒後から前記試験シーケンス開始時点の約8秒後までを含む、請求項6に記載の方法。
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US14/013,516 | 2013-08-29 | ||
| US14/013,516 US9459231B2 (en) | 2013-08-29 | 2013-08-29 | Method and system to determine erroneous measurement signals during a test measurement sequence |
| PCT/EP2014/068318 WO2015028578A1 (en) | 2013-08-29 | 2014-08-28 | Method and system to determine erroneous measurement signals during a test measurement sequence |
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| Publication Number | Publication Date |
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| JP2016532114A true JP2016532114A (ja) | 2016-10-13 |
| JP6404926B2 JP6404926B2 (ja) | 2018-10-17 |
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| US (1) | US9459231B2 (ja) |
| EP (1) | EP3039414B1 (ja) |
| JP (1) | JP6404926B2 (ja) |
| KR (1) | KR20160051800A (ja) |
| CN (1) | CN105492899B (ja) |
| AU (1) | AU2014314153B2 (ja) |
| CA (1) | CA2922779A1 (ja) |
| ES (1) | ES2660987T3 (ja) |
| RU (1) | RU2660404C2 (ja) |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2024538273A (ja) * | 2022-06-27 | 2024-10-18 | ドンウン アナテック カンパニー リミテッド | 検体測定のためのバイオセンサストリップ、その電極構造、およびそれを利用した検体測定方法 |
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- 2014-08-28 WO PCT/EP2014/068318 patent/WO2015028578A1/en not_active Ceased
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2024538273A (ja) * | 2022-06-27 | 2024-10-18 | ドンウン アナテック カンパニー リミテッド | 検体測定のためのバイオセンサストリップ、その電極構造、およびそれを利用した検体測定方法 |
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| TW201522960A (zh) | 2015-06-16 |
| ES2660987T3 (es) | 2018-03-27 |
| AU2014314153B2 (en) | 2019-01-17 |
| HK1225796B (en) | 2017-09-15 |
| RU2016111388A (ru) | 2017-10-02 |
| AU2014314153A1 (en) | 2016-03-03 |
| CN105492899A (zh) | 2016-04-13 |
| EP3039414B1 (en) | 2018-01-31 |
| US9459231B2 (en) | 2016-10-04 |
| US20150060299A1 (en) | 2015-03-05 |
| CA2922779A1 (en) | 2015-03-05 |
| CN105492899B (zh) | 2018-09-18 |
| JP6404926B2 (ja) | 2018-10-17 |
| WO2015028578A1 (en) | 2015-03-05 |
| KR20160051800A (ko) | 2016-05-11 |
| RU2660404C2 (ru) | 2018-07-06 |
| RU2016111388A3 (ja) | 2018-04-28 |
| EP3039414A1 (en) | 2016-07-06 |
| TWI655428B (zh) | 2019-04-01 |
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