JP5588977B2 - サンプルにおける生物学的粒子の検出および/または特徴付けのための方法およびシステム - Google Patents
サンプルにおける生物学的粒子の検出および/または特徴付けのための方法およびシステム Download PDFInfo
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- G01N21/47—Scattering, i.e. diffuse reflection
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- 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
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Description
(a)増殖組成物およびサンプルが含まれる容器を診断システム中に導入することであり、そこで前記容器は、前記診断システムへの前記容器の導入に先立ち、または導入の後のいずれかに前記増殖組成物および前記サンプルを含むことができ、
(b)前記容器を、予め定められた時点、または連続的に照射すること、
(c)少なくとも2つの測定値を得るために、前記照射された組成物を予め定められた時点で、または連続的に監視することであり、そこで前記監視は、反射率および蛍光のそれぞれのために、照射において用いられる波長と等しいか、またはそれよりも長い波長で行われ、および
(d)前記サンプル内に含まれる場合に、前記生物学的粒子を、検出し、および/または特徴付けるために、前記測定値を相関させること
を含む。
例1:ウォーターバスアダプターでのクォーツキュベットでの血液培養(培養基および血液サンプル)
例2:ウォーターバスアダプターにおけるアクリルキュベットの血液培養。
例3:マルチステーションカルーセルアダプターでのアクリルのキュベットでの血液培養
例4:シミュレーションされた血液培養研究のGDA分析(グループレベル)
例5:前面角度の最適化
例7:商業上の血液培養ボトルを用いた概念証明の血液培養システム
Claims (23)
- 血液サンプルにおいて存在する微生物を検出し、および特徴付けるための方法であって、前記血液サンプルを培養基と併せて血液培養物を形成すること、前記血液培養物から直接的に少なくとも2つの時間依存的な測定値を得ること、ここで、前記少なくとも2つの時間依存的な測定は、前記血液培養物および前記微生物の自家蛍光を直接的に測定すること、および前記血液サンプルにおいて存在する前記微生物を検出し、および特徴付けるために前記測定値を相関させることを含む、方法。
- 前記微生物は、グラム集団、臨床的グラム集団、治療上の集団、機能的な集団、および自然自家蛍光集団からなる群より選ばれる1またはそれよりも多くの分類モデル上に特徴付けられる、請求項1に従う方法。
- 前記分類モデルは、グラム染色でダークブルーに染色されるグラム陽性微生物、グラム染色で赤に染色されるグラム陰性微生物、またはグラム染色でダークブルーに染色される酵母細胞からなる群より選ばれるグラム集団中に前記微生物を特徴付ける、請求項2に従う方法。
- 前記分類モデルは、球菌、双球菌、ロッド(桿体)、または桿菌からなる群の1またはそれよりも多くから選ばれる臨床的グラム集団中に前記微生物を特徴付ける、請求項2に従う方法。
- 前記分類モデルは、高度に耐性化している腸内細菌科(enterobacteriacae、Enterobacteriaceae)(EB)種が感受性EB種から区別されるか、またはフルコナゾール耐性カンジダ種が感受性カンジダ種から区別される、治療上の集団中に前記微生物を特徴付ける、請求項2に従う方法。
- 前記微生物の検出により、自動化した通知が提供される、請求項1に従う方法。
- 前記検出は方法の開始から48時間未満で起こる、請求項6に従う方法。
- 前記測定値は、前面蛍光および拡散反射率を包含し、および前記血液培養物は液体培養基を含む、請求項1に従う方法。
- 分光学的技術は、約5分ごとから約1時間ごとまでの時間間隔でサンプルを励起することを含む、請求項8に従う方法。
- 前記特徴付けは検出後8時間内で起こる、請求項9に従う方法。
- 前記相関は、既知の微生物に供されるコントロールの測定値を有する前記少なくとも2つの時間依存的な測定値の比較を含む、請求項1に従う方法。
- 前記相関は既知の微生物を特徴付けることである、請求項1に従う方法。
- 前記相関は前記微生物を検出することである、請求項1に従う方法。
- 血液サンプルにおいて存在しうる微生物を検出し、および特徴付けるための自動化されたシステムであって、次の、(1)増殖組成物および前記血液サンプルを含む増殖チャンバー、(2)2つまたはそれよりも多くの時点での前記血液サンプル、増殖組成物および微生物から直接的に反射率および蛍光の測定値を得るための、時間依存的な反射率および自家蛍光の分光計を含む測定装置、および(3)前記微生物を検出し、および特徴付けるための、前記測定値を相関させるための手段を含み、前記増殖チャンバーは前記分光計内で配置され、および前記測定は前記増殖チャンバーに対し非侵襲性である、自動化システム。
- 前記相関は、既知の微生物に供されるコントロールの測定値を有する前記2つまたはそれよりも多くの時点での前記時間依存的な反射率および/または蛍光の測定値の比較を含む、請求項14の自動化システム。
- 前記比較はソフトウェアを用いて行われる、請求項15に従うシステム。
- 前記分光計は、微生物の代謝活性による微生物の増殖パラメータおよび複合体培養基の変化を監視するために構成される、請求項14に従うシステム。
- 前記増殖チャンバーは密閉容器である、請求項14に従うシステム。
- 前記増殖チャンバーはさらに、微生物の増殖を非侵襲的に検出するためにセンサーを含む、請求項14に従うシステム。
- さらに、前記微生物の検出により信号を提供する自動化通知装置を含む、請求項14に従うシステム。
- システムはさらに、前記微生物の特徴付けにより信号を提供する第2の自動化通知装置を含む、請求項16に従うシステム。
- 前記微生物は種のレベルで特徴付けられる、請求項1に従う方法。
- 前記少なくとも2つの時間依存的な測定は、前記血液培養物および/または前記微生物の自家蛍光及び拡散反射率を直接的に測定することを含む、請求項1に従う方法。
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US13583908P | 2008-07-24 | 2008-07-24 | |
| US61/135,839 | 2008-07-24 | ||
| PCT/US2009/051473 WO2010011798A2 (en) | 2008-07-24 | 2009-07-23 | Method and system for detection and/or characterization of a biological particle in a sample |
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| Publication Number | Publication Date |
|---|---|
| JP2011529187A JP2011529187A (ja) | 2011-12-01 |
| JP5588977B2 true JP5588977B2 (ja) | 2014-09-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2011520183A Active JP5588977B2 (ja) | 2008-07-24 | 2009-07-23 | サンプルにおける生物学的粒子の検出および/または特徴付けのための方法およびシステム |
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| Country | Link |
|---|---|
| US (3) | US8512975B2 (ja) |
| EP (1) | EP2318139B1 (ja) |
| JP (1) | JP5588977B2 (ja) |
| CN (1) | CN102176971B (ja) |
| AU (1) | AU2009273968C1 (ja) |
| CA (1) | CA2731229C (ja) |
| WO (1) | WO2010011798A2 (ja) |
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| WO2010011798A3 (en) | 2010-06-24 |
| US20130288295A1 (en) | 2013-10-31 |
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