JP2012247433A5 - - Google Patents

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JP2012247433A5
JP2012247433A5 JP2012177999A JP2012177999A JP2012247433A5 JP 2012247433 A5 JP2012247433 A5 JP 2012247433A5 JP 2012177999 A JP2012177999 A JP 2012177999A JP 2012177999 A JP2012177999 A JP 2012177999A JP 2012247433 A5 JP2012247433 A5 JP 2012247433A5
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  1. サンプル中の分析目的物の濃度を決定するための手持ち型測定装置であって、該装置はセンサストリップを挿入するのに適合しており、該装置は:
    接点;
    少なくとも1つのディスプレイ;および
    接点とディスプレイの間に電気的連絡を確立させる電気回路;
    を含み、該回路は、電気的に連絡されている充電器およびプロセッサを含み、該プロセッサは、コンピュータで読み取り可能なソフトウェアコードを含むコンピュータで読み取り可能な記憶媒体と電気的に連絡されており、該ソフトウェアコードはプロセッサによって実行されたときに充電器が接点間で180秒以内に少なくとも3回の負荷サイクルを含んでいる入力信号の実行を引き起こし、ここで各負荷サイクルは励起と緩和を含み;
    入力信号の10秒の持続時間にわたって、入力信号が少なくとも0.01の酸化還元強度を有し、および
    該プロセッサは、0.01〜1.5秒の持続時間を有する励起からの出力信号を測定し、測定した出力信号が負荷サイクルから得られた時間内の最終電流値であると判断した場合に、サンプル中の分析目的物の濃度を決定する、前記装置。
  2. サンプルが赤血球細胞を含む、請求項1に記載の装置。
  3. プロセッサがさらに、接点での少なくとも1つの電流特性の測定、および該少なくとも1つの電流特性に応じてのサンプル中の分析目的物濃度の決定が操作可能である、請求項1に記載の装置。
  4. 少なくとも1つの電流特性が一過性電流を表す、請求項3に記載の装置。
  5. 充電器が充電記録計であり、プロセッサが記録計から出力信号を記録する、請求項1に記載の装置。
  6. 接点へのサンプルの接触に応じてプロセッサが充電器に入力信号を実行させる、請求項1に記載の装置。
  7. サンプルへの入力信号の印加の4秒以内で、サンプル中の分析目的物の濃度を決定できるようにプロセッサと充電器が操作可能である、請求項1に記載の装置。
  8. サンプル中の分析目的物の濃度決定においてメディエータバックグラウンドに起因しうるバイアスを減少させる方法であって;
    180秒以内に少なくとも3回の負荷サイクルを含む入力信号をサンプルに印加すること、ここで各負荷サイクルは励起と緩和を有し、ここで入力信号の10秒の持続時間にわたって、入力信号が少なくとも0.01の酸化還元強度を有し、緩和が0.1〜3秒であり、励起の電流の少なくとも半分までの電流減少を含む;
    サンプル中に測定可能種を発生させること;
    0.01秒〜1.5秒の持続時間を有する励起からの出力信号を測定すること、ここで出力信号は測定可能種に応答し、サンプルの分析目的物の濃度に応じて測定可能種がサンプル中に濃度を有する;および
    出力信号に応じてサンプル中の分析目的物の濃度を決定すること、
    を含む前記方法。
  9. センサストリップにサンプルを導入すること、ここでセンサストリップはサンプルと電気的に連絡する作用電極および対電極を含む;
    センサストリップのメディエータにサンプル中の分析目的物から少なくとも1電子を移動させること;
    作用電極および対電極に入力信号を印加すること、ここで入力信号は電子化学的に測定可能種を励起させ、測定可能種は分析目的物、メディエータおよびそれらの組み合わせからなる群より選択される、
    をさらに含む請求項8に記載の方法。
  10. サンプルが赤血球細胞を含む、請求項8に記載の方法。
  11. 測定した出力シグナルが、少なくとも3回の負荷サイクルの励起から得られる時間内の最終電流値を含む、請求項8に記載の方法。
  12. 測定可能種が酸化または還元されたメディエータであり、メディエータが有機遷移金属錯体、配位錯体、電場応答性有機分子、およびそれらの組み合わせからなる群から選択される、請求項8に記載の方法。
  13. 0.1秒〜1.2秒の持続時間を有する励起からの出力信号を測定することを含む、請求項8に記載の方法。
  14. 入力信号が3〜16秒以内の4〜8回の負荷サイクルを含む、請求項8に記載の方法。
  15. 入力信号が30秒以内の3〜18の負荷サイクルを含む、請求項8に記載の方法。
  16. 1から30μmの平均初期厚を有する拡散バリア層の内側で測定可能種を励起すること、ここで拡散バリア層は部分的に水溶性のポリマー結合剤層を含む;および
    拡散バリア層の外側の測定可能種を励起から実質的に排除すること、ここで拡散バリア層がサンプルからの測定可能種の一部を収容し単離するための内部多孔性スペースを提供する
    をさらに含む、請求項8に記載の方法。
  17. 測定可能種の比較的一定な拡散速度に達したとき、出力信号から電流特性を決定することを含む、請求項8に記載の方法。
  18. 少なくとも3回の負荷サイクルの励起が各々0.1秒〜1.5秒の範囲の持続時間を有し、負荷サイクルが約0.2秒〜約3.5秒の範囲のパルス間隔を有する、請求項8に記載の方法。
  19. 少なくとも3回の負荷サイクルの励起が各々約0.4秒〜約1.2秒の範囲の持続時間を有し、負荷サイクルが約0.6秒〜約3.7秒の範囲のパルス間隔を有する、請求項8に記載の方法。
  20. 少なくとも3回の負荷サイクルの緩和が各々0.1秒〜3秒の持続時間を有し、励起の電流の少なくとも半分までの電流の減少を含む、請求項8に記載の方法。
  21. 出力信号から電流特性を決定することをさらに含み、ここで出力信号に応じてサンプル中の分析目的物の濃度を決定することが、電流特性からサンプル中の分析目的物の濃度を決定することを含む、請求項8に記載の方法。
  22. 電流特性が一過性の減衰を含み、サンプルの分析目的物濃度が一過性の減衰を含む電流特性の部分から決定される、請求項21に記載の方法。
  23. 出力信号に応じて複数組の較正定数を先に確立することをさらに含む、請求項8に記載の方法。
  24. サンプルに励起を印加した後に少なくとも3回の負荷サイクルの励起の各々から固定時間における電流値を採用することにより複数組の較正定数を確立する、請求項23に記載の方法。
  25. 複数組の較正定数に応じてサンプル中の分析目的物の複数の濃度を決定すること;および
    サンプル中の分析目的物の濃度を決定するためにサンプル中の分析目的物の複数の濃度を平均化すること
    をさらに含む、請求項23に記載の方法。
  26. 入力信号のサンプルへの印加の4秒以内にサンプル中の分析目的物の濃度を決定することを含む、請求項8に記載の方法。
  27. 180秒以内に少なくとも3回の負荷サイクルを含む入力信号を、センサストリップの作用電極および対電極に接触したサンプルに印加すること、ここで各負荷サイクルは励起と緩和を含む;
    少なくとも3回の負荷サイクルの少なくとも2回の励起からの電流を含む出力信号を測定すること;
    少なくとも2回の励起についての出力信号から減衰定数特性を決定すること;
    少なくとも2回の励起からの減衰定数特性からセンサストリップが充填量不足かどうか決定すること;
    ストリップが充填量不足の場合、センサストリップに追加的なサンプルを追加することを使用者に合図すること;および
    出力信号からサンプル中の分析目的物の濃度を決定すること;
    を含む、センサストリップへの追加的なサンプルの追加を使用者に合図する方法。
  28. 少なくとも2回の励起の各々について一過性電流特性として電流を記録することをさらに含む、請求項27に記載の方法。
  29. 少なくとも2回の励起の各々について一過性電流特性からの時間の関数として減衰速度の輪郭特性を決定することをさらに含む、請求項28に記載の方法。
  30. 減衰過程のK定数を用いての減衰定数特性に対する時間の関数として減衰速度の輪郭特性を変換することをさらに含む、請求項29に記載の方法。
  31. 電流特性の実際の減衰定数が選択された値より低い場合、センサストリップに追加的なサンプルを追加することを使用者に合図する、請求項27に記載の方法。
  32. 採用電極および対電極に接触するサンプルへの入力信号の印加の3〜5秒以内にセンサストリップに追加的なサンプルを追加することを使用者に合図する、請求項27に記載の方法。
  33. 減衰速度と温度の間の相関を予め決定すること;
    180秒以内に少なくとも3回の負荷サイクルを含む入力信号の少なくとも2回の励起の間に記録する電流から電流特性を決定すること;および
    サンプルの温度を決定するために、減衰速度と温度の間の相関に対して電流特性を相関させること;
    を含む、センサストリップにより収納されるサンプルの温度を決定する方法。
  34. 少なくとも2回の励起の少なくとも1回の電流特性がK定数として表現される、請求項33に記載の方法。
  35. 少なくとも2回の励起の電流特性から輪郭特性を発生させることをさらに含む、請求項33に記載の方法。
  36. 電流特性が一過性である、請求項33に記載の方法。
  37. サンプルの決定された温度に応じて入力信号から記録された電流からサンプルの分析目的物濃度を決定することをさらに含む、請求項33に記載の方法。
  38. 出力信号からの固定時間において記録された電流から複数組の較正定数を予め決定すること;
    180秒以内に少なくとも3回の負荷サイクルを含む入力信号をサンプルに印加すること;
    少なくとも3回の負荷サイクルの少なくとも1回の励起から測定される出力信号からサンプル中の分析目的物の濃度を決定すること;および
    サンプル中の分析目的物の決定した濃度に応じて、サンプルに対して印加する入力信号の持続時間を決定すること;
    を含み、少なくとも3回の負荷サイクルの各々は励起を含む、サンプル中の分析目的物の濃度を決定するために、サンプルに印加する180秒以内の少なくとも3回の負荷サイクルを含む入力信号の持続時間を決定する方法。
  39. 少なくとも3回の負荷サイクルの励起を印加した後で、固定時間において記録した電流値から複数組の較正定数を決定する、請求項38に記載の方法。
  40. 180秒以内に少なくとも3回の負荷サイクルの励起から記録される電流から電流特性を決定することをさらに含む、請求項38に記載の方法。
  41. 電流が一過性である、請求項40に記載の方法。
  42. 少なくとも3回の負荷サイクルの電流特性から輪郭特性を発生させることをさらに含む、請求項40に記載の方法。
  43. サンプルに印加する入力信号の持続時間を決定するために使用するサンプルの分析目的物の濃度が輪郭特性の最高電流値から決定される、請求項42に記載の方法。
  44. 入力信号の持続期間がサンプルに印加する負荷サイクルの回数に関して決定される、請求項38または43に記載の方法。
  45. 入力信号の負荷サイクルの回数が、複数組の較正定数およびサンプル中の分析目的物の決定された濃度に応じて決定される、請求項44に記載の方法。
  46. サンプル中の分析目的物の決定された濃度が低く決定された場合よりも、サンプル中の分析目的物の濃度が高く決定された場合の入力信号の持続時間がより短い、請求項38または43に記載の方法。
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CN (1) CN103558284B (ja)
AR (1) AR054851A1 (ja)
AU (1) AU2006272909B2 (ja)
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