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    • 6. 发明申请
    • Method and apparatus for imaging target components in a biological sample using permanent magnets
    • 用于使用永磁体对生物样品中的目标成分进行成像的方法和装置
    • US20090061477A1
    • 2009-03-05
    • US12031807
    • 2008-02-15
    • Arjan G.J. TibbeLeon W.M.M. Terstappen
    • Arjan G.J. TibbeLeon W.M.M. Terstappen
    • C12Q1/06C12M1/00
    • G01N33/582G01N33/54326G01N33/56972G01N2333/70514G01N2446/00
    • A system for enumeration of cells in fluids by image cytometry is described for assessment of target populations such as leukocyte subsets in different bodily fluids or bacterial contamination in environmental samples, food products and bodily fluids. Briefly, fluorescently labeled target cells are linked to magnetic particles or beads. In one embodiment, a small, permanent magnet is inserted directly into the chamber containing the labeled cells. The magnets are coated with PDMS silicone rubber to provide a smooth and even surface which allows imaging on a single focal plane. The magnet is removed from the sample and illuminated with fluorescent light emitted by the target cells captured by a CCD camera. In another embodiment, a floater having a permanent magnet allows the target cells to line up along a single imaging plane within the sample solution. Image analysis can be performed with a novel algorithm to provide a count of the cells on the surface, reflecting the target cell concentration of the original sample.
    • 描述了通过图像细胞计数法检测流体细胞的系统,用于评估目标群体,例如不同体液中的白细胞亚群或环境样品,食品和体液中的细菌污染物。 简言之,荧光标记的靶细胞与磁性颗粒或珠粒连接。 在一个实施例中,将小的永磁体直接插入到包含标记电池的腔室中。 这些磁体用PDMS硅橡胶涂覆,以提供平滑和均匀的表面,允许在单个焦平面上进行成像。 从样品中除去磁体,并用由CCD照相机俘获的靶细胞发射的荧光照射。 在另一个实施例中,具有永磁体的浮子允许靶细胞沿着样品溶液内的单个成像平面排列。 可以用新颖的算法进行图像分析,以提供表面上的细胞计数,反映原始样品的靶细胞浓度。
    • 7. 发明申请
    • Methods and Algorithms for Cell Enumeration in a Low-Cost Cytometer
    • 低成本细胞计数器细胞计数的方法和算法
    • US20110044527A1
    • 2011-02-24
    • US12917000
    • 2010-11-01
    • Arjan TibbeJan GreveDhanesh GohelErik DroogLeon W.M.M. Terstappen
    • Arjan TibbeJan GreveDhanesh GohelErik DroogLeon W.M.M. Terstappen
    • G06K9/00
    • G01N15/1475G01N15/1463G01N33/5094G01N33/54333G01N2015/008G01N2015/1486Y10T436/101666Y10T436/25375
    • The enumeration of cells in fluids by flow cytometry is widely used across many disciplines such as assessment of leukocyte subsets in different bodily fluids or of bacterial contamination in environmental samples, food products and bodily fluids. For many applications the cost, size and complexity of the instruments prevents wider use, for example, CD4 analysis in HIV monitoring in resource-poor countries. The novel device, methods and algorithms disclosed herein largely overcome these limitations. Briefly, all cells in a biological sample are fluorescently labeled, but only the target cells are also magnetically labeled. The labeled sample, in a chamber or cuvet, is placed between two wedge-shaped magnets to selectively move the magnetically labeled cells to the observation surface of the cuvet. An LED illuminates the cells and a CCD camera captures the images of the fluorescent light emitted by the target cells. Image analysis performed with a novel algorithm provides a count of the cells on the surface that can be related to the target cell concentration of the original sample. The compact cytometer system provides a rugged, affordable and easy-to-use technique, which can be used in remote locations.
    • 通过流式细胞术对流体细胞的计数被广泛应用于许多学科,例如评估不同体液中的白细胞亚群或环境样品,食品和体液中的细菌污染。 对于许多应用,仪器的成本,尺寸和复杂性阻止了更广泛的使用,例如资源贫乏国家的艾滋病毒监测中的CD4分析。 本文公开的新颖的装置,方法和算法在很大程度上克服了这些限制。 简言之,生物样品中的所有细胞都被荧光标记,但只有靶细胞也被磁性标记。 将标记的样品置于室或铜管中,放置在两个楔形磁体之间,以选择性地将磁性标记的细胞移动到铜管的观察表面。 LED照亮细胞,CCD相机捕获由靶细胞发射的荧光的图像。 用新算法进行的图像分析提供了与原始样品的靶细胞浓度相关的表面上的细胞计数。 紧凑型细胞仪系统提供坚固,经济实惠且易于使用的技术,可用于偏远地区。
    • 8. 发明申请
    • Method and apparatus for imaging target components in a biological sample using permanent magnets
    • 用于使用永磁体对生物样品中的目标成分进行成像的方法和装置
    • US20110014686A1
    • 2011-01-20
    • US12888562
    • 2010-09-23
    • Arjan G.J. TibbeLeon W.M.M. Terstappen
    • Arjan G.J. TibbeLeon W.M.M. Terstappen
    • C12M1/42
    • G01N33/582G01N33/54326G01N33/56972G01N2333/70514G01N2446/00
    • A system for enumeration of cells in fluids by image cytometry is described for assessment of target populations such as leukocyte subsets in different bodily fluids or bacterial contamination in environmental samples, food products and bodily fluids. Briefly, fluorescently labeled target cells are linked to magnetic particles or beads. In one embodiment, a small, permanent magnet is inserted directly into the chamber containing the labeled cells. The magnets are coated with PDMS silicone rubber to provide a smooth and even surface which allows imaging on a single focal plane. The magnet is removed from the sample and illuminated with fluorescent light emitted by the target cells captured by a CCD camera. In another embodiment, a floater having a permanent magnet allows the target cells to line up along a single imaging plane within the sample solution. Image analysis can be performed with a novel algorithm to provide a count of the cells on the surface, reflecting the target cell concentration of the original sample.
    • 描述了通过图像细胞计数法检测流体细胞的系统,用于评估目标群体,例如不同体液中的白细胞亚群或环境样品,食品和体液中的细菌污染物。 简言之,荧光标记的靶细胞与磁性颗粒或珠粒连接。 在一个实施例中,将小的永磁体直接插入到包含标记电池的腔室中。 这些磁体用PDMS硅橡胶涂覆,以提供平滑和均匀的表面,允许在单个焦平面上进行成像。 从样品中除去磁体,并用由CCD照相机俘获的靶细胞发射的荧光照射。 在另一个实施例中,具有永磁体的浮子允许靶细胞沿着样品溶液内的单个成像平面排列。 可以用新颖的算法进行图像分析,以提供表面上的细胞计数,反映原始样品的靶细胞浓度。
    • 9. 发明申请
    • Method and apparatus for imaging target components in a biological sample using permanent magnets
    • 用于使用永磁体对生物样品中的目标成分进行成像的方法和装置
    • US20090061476A1
    • 2009-03-05
    • US11897471
    • 2007-08-30
    • Arian G.J. TibbeLeon W.M.M. Terstappen
    • Arian G.J. TibbeLeon W.M.M. Terstappen
    • C12Q1/06
    • G01N33/54326G01N33/56972G01N2333/70514
    • A system for enumeration of cells in fluids by image cytometry is described for assessment of target populations such as leukocyte subsets in different bodily fluids or bacterial contamination in environmental samples, food products and bodily fluids. Briefly, all cells in a biological sample are fluorescently labeled, but only the target cells are also magnetically labeled. A small, permanent magnet is inserted directly into the chamber containing the labeled sample. The magnets are coated with PDMS silicone rubber to provide a smooth and even surface which allows imaging on a single focal plane. The cells are illuminated and the images of the fluorescent light emitted by the target cells are captured by a CCD camera. Image analysis performed with a novel algorithm provides a count of the cells on the surface that can be related to the target cell concentration of the original sample.
    • 描述了通过图像细胞计数法检测流体细胞的系统,用于评估目标群体,例如不同体液中的白细胞亚群或环境样品,食品和体液中的细菌污染物。 简言之,生物样品中的所有细胞都被荧光标记,但只有靶细胞也被磁性标记。 将一个小的永久磁铁直接插入含有标记样品的室中。 这些磁体用PDMS硅橡胶涂覆,以提供平滑和均匀的表面,允许在单个焦平面上进行成像。 细胞被照射,并且由CCD照相机捕获由靶细胞发射的荧光的图像。 用新算法进行的图像分析提供了与原始样品的靶细胞浓度相关的表面上的细胞计数。
    • 10. 发明申请
    • Methods and Algorithms For Cell Enumeration in a Low-Cost Cytometer
    • 低成本细胞计数器细胞计数的方法和算法
    • US20110052037A1
    • 2011-03-03
    • US12707578
    • 2010-02-17
    • Frank A.W. CoumansJan GreveFrank P. ModicaLeon W.M.M. TerstappenArjan G.J. TibbeJohn A. Verrant
    • Frank A.W. CoumansJan GreveFrank P. ModicaLeon W.M.M. TerstappenArjan G.J. TibbeJohn A. Verrant
    • G06K9/00
    • G01N15/1475G01N33/5094G01N33/54333
    • The enumeration of cells in fluids by flow cytometry is widely used across many disciplines such as assessment of leukocyte subsets in different bodily fluids or of bacterial contamination in environmental samples, food products and bodily fluids. For many applications the cost, size and complexity of the instruments prevents wider use, for example, CD4 analysis in HIV monitoring in resource-poor countries. The novel device, methods and algorithms disclosed herein largely overcome these limitations. Briefly, all cells in a biological sample are fluorescently labeled, but only the target cells are also magnetically labeled. In addition, non-magnetically labeled cells are imaged for viability in a modified slide configuration. The labeled sample, in a chamber or cuvet, is placed between two wedge-shaped magnets to selectively move the magnetically labeled cells to the observation surface of the cuvet. An LED illuminates the cells and a CCD camera captures the images of the fluorescent light emitted by the target cells. Image analysis performed with a novel algorithm provides a count of the cells on the surface that can be related to the target cell concentration of the original sample. The compact cytometer system provides a rugged, affordable and easy-to-use technique, which can be used in remote locations.
    • 通过流式细胞术对流体细胞的计数被广泛应用于许多学科,例如评估不同体液中的白细胞亚群或环境样品,食品和体液中的细菌污染。 对于许多应用,仪器的成本,尺寸和复杂性阻止了更广泛的使用,例如资源贫乏国家的艾滋病毒监测中的CD4分析。 本文公开的新颖的装置,方法和算法在很大程度上克服了这些限制。 简言之,生物样品中的所有细胞都被荧光标记,但只有靶细胞也被磁性标记。 另外,非磁性标记的细胞在修改的载玻片配置中的存活力被成像。 将标记的样品置于室或铜管中,放置在两个楔形磁体之间,以选择性地将磁性标记的细胞移动到铜管的观察表面。 LED照亮细胞,CCD相机捕获由靶细胞发射的荧光的图像。 用新算法进行的图像分析提供了与原始样品的靶细胞浓度相关的表面上的细胞计数。 紧凑型细胞仪系统提供坚固,经济实惠且易于使用的技术,可用于偏远地区。