JP4987713B2 - 磁性粒子を収集するためのテーパー状のキュベットおよび方法 - Google Patents
磁性粒子を収集するためのテーパー状のキュベットおよび方法 Download PDFInfo
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Description
キュベットは、光学測定を必要としている医学的診断試験手順用における使用のための、サンプル(例えば反応混合物のアリコート、環境サンプル、血液、尿またはそれらの画分)の保持のために、代表的に使われる。サンプルにおける目的の分析物の固定化、捕捉または回収は、磁性粒子を使用して達成され得る。
臨床診断法において使用される臨床サンプル(通常、少量で利用可能)および試薬は、高コストである。
磁性粒子を利用する自動化アッセイは、目的の分析物をを収集および分析するために、サンプルの磁性粒子を実質的に全て捕捉しなければならない。
磁石と、流体中の磁性粒子を含む容器とを提供する工程、
その磁性粒子をその磁石に引きつける工程、
その流体から磁石で磁性粒子を移動させる工程、
を包含する。1つの実施形態において、この方法は、磁性粒子が流体から外に移動した後、容器から流体を除去する工程をさらに包含する。1つの実施形態において、磁石が、流体から磁性粒子を移動させるために移動される。別の実施形態では、容器が、流体から磁性粒子を移動させるために移動される。
本明細書中に記載される本発明は、臨床分析機器(イムノアッセイ計測器を含む)用の容器(例えば光学キュベット)に関する。後述する本発明の実施形態は、以下:
開口頂部および閉鎖底部、少なくとも4つの側面を備える容器であって、その4つの側面のうちの少なくとも2つは、テーパー状である、
という共通特徴を有する。この側面はまた、互いに対向し、かつ平坦である少なくとも2つの側面を含む。このテーパー状の側面は、開口頂部から閉鎖底部に向かってテーパー状である。
突起8の底部44は、例えば、種々の形状(例えば、丸いか、とがっているか、または平坦)を有し得る。
容器2の頂部20の方向へ磁性粒子82を運びながら、磁石66は次いで、容器2の頂部20の方へ、粒子接合側面4a、4a’に沿って上方へ移動する。1つの実施形態において、磁石はNeodymium磁石であり、そして、約20mm2〜約30mm2(好ましくは約25mm2)の接触面積を有し、約12,000ガウス〜約13,000ガウス(好ましくは約12,500ガウス)[グレード38のNeodymium磁石]の磁気強さを有する。
Claims (27)
- 臨床分析の間の、光学分析のための流体媒体中の磁性粒子の操作における使用のための容器であって、該容器は、以下:
a)垂直軸;
b)該垂直軸に実質的に垂直な、開放頂部;
c)閉鎖底部;
d)一対の対向する光学分析用側面と別の一対の対向する磁性粒子接合用側面とを含む、4つの側面であって、該4つの側面の各々は該開放頂部から該閉鎖底部に延び、該磁性粒子接合用側面は、平坦であり、該側面の各々は、該容器の該底部よりも該頂部においてより幅広であり、そして該一対の対向する光学分析用側面の各側面または該一対の対向する磁性粒子接合用側面の各側面が、該開放頂部に近接する該容器の外面に位置し、かつ底部に向かって延びる突起をさらに備え、該突起の各々は、該容器が類似の容器と積み重なった場合に、第1の容器の外面と、第2の容器の内面とが間隙を規定するような長さを有し、そして該突起は、該容器の該垂直軸に実質的に平行な平面を備える、4つの平面、
を備え、該一対の対向する光学分析用側面の合わせた表面積が、該一対の対向する磁性粒子接合用側面の合わせた表面積よりも大きい、容器。 - 前記閉鎖底部が凸面である、請求項1に記載の容器。
- 前記光学分析用側面または磁性粒子接合用側面の対向する側面が対称である、請求項1に記載の容器。
- 前記一対の対向する光学分析用側面の合わせた表面に対する、前記一対の対向する磁性粒子接合用側面の合わせた表面積の比率が、約4:1〜約2:1の範囲にある、請求項1に記載の容器。
- 前記比率が3:1である、請求項4に記載の容器。
- 前記光学分析用側面が、実質的に透明な材料から構成される、請求項1に記載の容器。
- 前記容器の前記底部よりも該容器の前記頂部において、前記容器の内部断面積がより大きい、請求項1に記載の容器。
- 前記一対の対向する光学分析用側面または前記一対の対向する磁性粒子接合用側面の少なくとも一方が、垂直に対して5.8°の角度でテーパー状である、請求項1に記載の容器。
- 前記容器が、該容器の頂部に位置するフランジをさらに備える、請求項1に記載の容器。
- 前記容器が、該容器の対向する側面上に、該容器の前記頂部から外側に1.33mm延びる2つのフランジを備える、請求項9に記載の容器。
- 前記フランジは、前記容器の全ての側面上で、該側面から実質的に同じ距離延びる、請求項9に記載の容器。
- 類似の容器と積み重ねられた請求項1に記載の容器を含む、容器カートリッジ。
- 前記第1の容器と前記第2の容器との間の間隙が、少なくとも0.01mmである、請求項1に記載の容器。
- 自動化診断デバイスにおいて容器を装填するための容器カートリッジであって、該容器カートリッジは光学分析のための複数の容器を備え、各容器は、
a)垂直軸;
b)該垂直軸に実質的に垂直な、開放頂部;
c)閉鎖底部;
d)一対の対向する光学分析用側面と別の一対の対向する磁性粒子接合用側面とを含む、4つの側面であって、該4つの側面の各々は該開放頂部から該閉鎖底部に延び、該磁性粒子接合用側面は、平坦であり、該側面の各々は、該容器の該底部よりも該頂部においてより幅広であり、そして該一対の対向する光学分析用側面の各側面または該一対の対向する磁性粒子接合用側面の各側面が、該開放頂部に近接する該容器の外面に位置し、かつ底部に向かって延びる突起をさらに備え、該突起の各々は、該容器が類似の容器と積み重なった場合に、第1の容器の外面と、第2の容器の内面とが間隙を規定するような長さを有し、そして該突起は、該容器の該垂直軸に実質的に平行な平面を備える、4つの平面、
を備え、該一対の対向する光学分析用側面の合わせた表面積が、該一対の対向する磁性粒子接合用側面の合わせた表面積よりも大きい、容器カートリッジ。 - 前記第1の容器と前記第2の容器との間の間隙は、少なくとも4mmである、請求項14に記載の容器カートリッジ。
- 前記第1の容器と前記第2の容器との間の間隙が、該第1の容器の表面上の突起によってさらに規定される、請求項14に記載の容器カートリッジ。
- 前記第1の容器の外面と第2の容器の内面との間の間隙が、前記突起の長さによって決定される、請求項14に記載の容器カートリッジ。
- 磁性粒子を収集および再懸濁するための方法であって、該方法は、以下:
a)光学分析のための容器であって、以下:
i)垂直軸;
ii)該垂直軸に実質的に垂直な、開放頂部;
iii)閉鎖底部;
iv)一対の対向する光学分析用側面と別の一対の対向する磁性粒子接合用側面とを含む、4つの側面であって、該4つの側面の各々は該開放頂部から該閉鎖底部に延び、該磁性粒子接合用側面は、平坦であり、該側面の各々は、該容器の該底部よりも該頂部においてより幅広であり、そして該一対の対向する光学分析用側面の各側面または該一対の対向する磁性粒子接合用側面の各側面が、該開放頂部に近接する該容器の外面に位置し、かつ底部に向かって延びる突起をさらに備え、該突起の各々は、該容器が類似の容器と積み重なった場合に、第1の容器の外面と、第2の容器の内面とが間隙を規定するような長さを有し、そして該突起は、該容器の該垂直軸に実質的に平行な平面を備え、該一対の対向する光学分析用側面の合わせた表面積が、該一対の対向する磁性粒子接合用側面の合わせた表面積よりも大きい、4つの平面、および
v)平面粒子接合側面
を備え、かつ第一の流体中に懸濁されている磁性粒子を含む、容器を提供する工程、
b)該容器を、垂直面を有する、磁石を備えるホルダ内に導入する工程、
c)該容器の平面粒子接合側面を、該ホルダにおける第一の非垂直位置と第二の垂直位置との間で移動させる工程であって、該容器の該平面粒子接合側面は、該ホルダの該垂直面に隣接して位置しており、該ホルダは、該第二の位置において該容器の平面粒子接合側面を保持する、工程、
d)該容器の該平面粒子接合側面の底部における該容器中の該磁性粒子を、平坦な側面を有する該磁石への磁気引力によって収集する工程であって、該平坦な側面は、該平坦な側面にわたって均一な磁束密度を形成し、該磁石の平坦な側面は、該第二の位置における該容器の平面粒子接合側面に隣接して位置する、工程、
e)該磁石に引き付けられた該磁性粒子を、該磁石を使用して、該容器の該平面粒子接合側面に沿って該流体の外に移動させる工程、
f)該容器の該平面粒子接合側面と対向する容器側面に向かって位置する吸引点から、該容器から該第一の流体を吸引する工程、次いで
g)該容器の該平面粒子接合側面に向かって、該容器内に第二の流体を注入する工程、および
h)必要に応じて(c)〜(f)の工程を繰り返す工程
を包含する、方法。 - 前記磁石が、前記磁性粒子を前記第一の流体から移動させるために移動される、請求項18に記載の方法。
- 前記容器が、前記磁性粒子を前記第一の流体から移動させるために移動される、請求項18に記載の方法。
- 前記第二の流体が前記平面粒子接合側面に向かって前記容器内に注入されて、該容器の該平面粒子接合側面から前記磁性粒子を外し、該磁性粒子を該容器中の該第二の流体に再懸濁する、請求項18に記載の方法。
- 傾けられた位置の前記容器が、前記ホルダの前記垂直面に対して約10°〜約14°の角度である、請求項18に記載の方法。
- 前記平面粒子接合側面が、前記容器の大きな開口頂部から小さな閉鎖底部にテーパー状である、請求項18に記載の方法。
- 前記導入する工程は、前記容器をレバーアームで前記ホルダの垂直面に対して保持することを含み、該レバーアームは、該レバーアームの低い端部の近位の旋回点に取り付けられ、そして該容器が該ホルダの垂直面と該レバーアームとの間で該ホルダ管腔内に受容されるとき、レバーアーム垂直位置から該垂直面に対してレバーアーム傾斜位置に相互に移動可能であり、該レバーアームは該垂直位置に向かって付勢されており、該容器を該ホルダの該垂直面に対して傾斜位置に保つ、請求項18に記載の方法。
- 請求項1〜11または13のいずれか1項に記載の容器中の磁性粒子、あるいは請求項12に記載の容器カートリッジを洗浄するためのデバイスであって、該デバイスは、以下:
a)ホルダ管腔、
b)磁石を含む垂直面、および
c)レバーアーム
を備えるホルダを備え、該レバーアームは、該レバーアームの低い端部の近位の旋回点に取り付けられ、そして容器が該垂直面と該レバーアームとの間で該ホルダ管腔内に受容されたとき、垂直位置から、該ホルダの該垂直面に対してレバーアーム傾斜位置に相互に移動可能であり、そして該レバーアームは該垂直位置に向かって付勢され、該容器を該ホルダの該垂直面に対して傾斜位置で維持する、デバイス。 - 前記レバーアームがばねを備える、請求項25に記載のデバイス。
- 磁石をさらに備える、請求項25に記載のデバイス。
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2004
- 2004-06-08 US US10/863,881 patent/US8211386B2/en active Active
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ES2554921T3 (es) | 2015-12-28 |
EP2634585A2 (en) | 2013-09-04 |
WO2005124365A3 (en) | 2006-02-16 |
US8211386B2 (en) | 2012-07-03 |
US20130287651A1 (en) | 2013-10-31 |
JP2014089210A (ja) | 2014-05-15 |
CA2570133C (en) | 2015-12-15 |
EP2634585A3 (en) | 2014-07-30 |
US20120171777A1 (en) | 2012-07-05 |
JP5795973B2 (ja) | 2015-10-14 |
AU2010221789B2 (en) | 2012-05-31 |
AU2010221789A1 (en) | 2010-10-07 |
CA2901298A1 (en) | 2005-12-29 |
CA2570133A1 (en) | 2005-12-29 |
EP1754065B1 (en) | 2015-09-16 |
AU2005255403B2 (en) | 2010-07-15 |
JP2012108162A (ja) | 2012-06-07 |
JP2008501980A (ja) | 2008-01-24 |
US20050271550A1 (en) | 2005-12-08 |
AU2005255403A1 (en) | 2005-12-29 |
US8476080B2 (en) | 2013-07-02 |
WO2005124365A2 (en) | 2005-12-29 |
EP1754065A2 (en) | 2007-02-21 |
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