DETECTION OF CIRCULATING TUMOR CELLS USING IMAGING FLOW CYTOMETRY
    1.
    发明申请
    DETECTION OF CIRCULATING TUMOR CELLS USING IMAGING FLOW CYTOMETRY 有权
    使用成像流程细胞计数检测循环肿瘤细胞

    公开(公告)号:US20120148142A1

    公开(公告)日:2012-06-14

    申请号:US13396333

    申请日:2012-02-14

    IPC分类号: G06K9/62

    摘要: Photometric and morphometric features derived from multi-mode imagery of cells in flow are used as a cell analyzer to determine if a marker corresponding to a cancer cell or precancerous cell is present in the population of cells imaged. An imaging system simultaneously acquires a plurality of images for each cell passing through the field of view of the imaging system. Acquiring a plurality of different images (i.e., bright field, dark field, and fluorescent images) facilitates the determination of different morphological and morphometric parameters. Simultaneously acquiring the plurality of images enables relatively large populations of cells to be rapidly imaged, so that relatively small numbers of cancer cells in a large population of cells can be detected. Initially, known cancer cells are imaged to enable a marker to be identified. Then, a sample that may include cancer cells is imaged to determine if the marker is present.

    摘要翻译: 作为细胞分析仪,使用从流动细胞的多模式图像得到的光度和形态测定特征,以确定对应于癌细胞或癌前细胞的标志物是否存在于成像细胞群体中。 成像系统同时获取通过成像系统的视野的每个单元的多个图像。 获取多个不同的图像(即,亮场,暗场和荧光图像)有助于确定不同的形态和形态测量参数。 同时获取多个图像使得能够快速成像相对较大数量的细胞,从而可以检测大量细胞中相对少数量的癌细胞。 首先,将已知的癌细胞成像以使得能够鉴定标记。 然后,可以包含癌细胞的样品被成像以确定标记物是否存在。

    Auto focus for a flow imagin system
    3.
    发明申请
    Auto focus for a flow imagin system 有权
    自动对焦一个流量想象系统

    公开(公告)号:US20050127271A1

    公开(公告)日:2005-06-16

    申请号:US11045675

    申请日:2005-01-28

    摘要: A pair of optical gratings are used to modulate light from an object, and the modulated light from either grating is used to determine the velocity of the object. Each optical grating is offset from a reference focal point by the same distance, one grating being offset in a positive direction, the other in a negative direction. Signals produced in response to the modulated light can be processed to determine a direction in which a primary collection lens should be moved in order to improve a focus of the imaging system on the object. The lens is moved incrementally in the direction so determined, and the process is repeated until an optimal focus is achieved. In a preferred embodiment, the signals are weighted, so that the optical grating disposed closest to the optimal focus position contributes the most to velocity detection.

    摘要翻译: 一对光栅用于调制来自物体的光,并且来自任一光栅的调制光用于确定物体的速度。 每个光栅从参考焦点偏移相同的距离,一个光栅在正方向偏移,另一个光栅在负方向上偏移。 可以处理响应于调制光产生的信号以确定主收集透镜应该移动的方向,以便改善成像系统对物体的焦点。 透镜在如此确定的方向上逐渐移动,并重复该过程,直到达到最佳聚焦。 在优选实施例中,对信号进行加权,使得最靠近最佳聚焦位置布置的光栅最有助于速度检测。

    Modifying the output of a laser to achieve a flat top in the laser's Gaussian beam intensity profile
    4.
    发明授权
    Modifying the output of a laser to achieve a flat top in the laser's Gaussian beam intensity profile 有权
    修改激光器的输出以实现激光器高斯光束强度分布中的平顶

    公开(公告)号:US08451524B2

    公开(公告)日:2013-05-28

    申请号:US12886182

    申请日:2010-09-20

    IPC分类号: G02B26/08 G01N21/00

    摘要: A laser beam is periodically deflected before being directed into a sample volume. The beam is deflected at a frequency such that the beam makes one or more passes through the sample volume while data are collected from the sample volume. The amplitude of motion of the beam, the dwell time of the beam at any given point, and the Gaussian intensity profile of the beam cooperate to produce an effective flat topped illumination profile for the light that is incident on specimens in the sample volume. The total photon exposure at any given point in the sample volume is a function of both the beam intensity and the dwell time at that location. Therefore, a longer dwell time and lower intensity at the edge of the profile are in balance with a shorter dwell time and higher intensity at the center of the profile.

    摘要翻译: 在被引导到样品体积之前,激光束被周期性地偏转。 光束以频率偏转,使得光束在从样本体积收集数据的同时使一次或多次通过样本体积。 光束的运动幅度,光束在任何给定点的停留时间以及光束的高斯强度分布协同作用,为入射到样品体积中的样本的光产生有效的平顶照明曲线。 样品体积中任何给定点处的总光子曝光是光束强度和该位置处的停留时间的函数。 因此,轮廓边缘处的较长停留时间和较低的强度与轮廓中心处的较短停留时间和较高的强度平衡。

    Blood and cell analysis using an imaging flow cytometer
    5.
    发明授权
    Blood and cell analysis using an imaging flow cytometer 有权
    使用成像流式细胞仪进行血液和细胞分析

    公开(公告)号:US08406498B2

    公开(公告)日:2013-03-26

    申请号:US12631795

    申请日:2009-12-04

    IPC分类号: G06K9/00

    摘要: Multimodal or multispectral images of cells comprising a population of cells are simultaneously collected. Photometric and/or morphometric image features identifiable in the images are used to identify differences between first and second populations of cells. The differences can include changes in a relative percentage of different cell types in each population, or a change in a first type of cell present in the first population of cells and the same type of cell in the second population of cells. The changes may be indicative of a disease state, indicative of a relative effectiveness of a therapy, or indicative of a health of the person from whom the cells populations were obtained.

    摘要翻译: 同时收集包含细胞群的细胞的多峰或多光谱图像。 图像中可识别的光度和/或形态测量图像特征用于识别第一和第二细胞群体之间的差异。 差异可以包括每个群体中不同细胞类型的相对百分比的变化,或第一细胞群体中存在的第一类细胞和第二细胞群体中相同类型的细胞的变化。 这些改变可以指示疾病状态,指示治疗的相对有效性或指示获得细胞群体的人的健康。

    MODIFYING THE OUTPUT OF A LASER TO ACHIEVE A FLAT TOP IN THE LASER'S GAUSSIAN BEAM INTENSITY PROFILE
    8.
    发明申请
    MODIFYING THE OUTPUT OF A LASER TO ACHIEVE A FLAT TOP IN THE LASER'S GAUSSIAN BEAM INTENSITY PROFILE 有权
    修改激光器的输出以实现激光高斯光束强度曲线中的平顶

    公开(公告)号:US20110085221A1

    公开(公告)日:2011-04-14

    申请号:US12886182

    申请日:2010-09-20

    IPC分类号: G02B26/10 G02F1/33

    摘要: A laser beam is periodically deflected before being directed into a sample volume. The beam is deflected at a frequency such that the beam makes one or more passes through the sample volume while data are collected from the sample volume. The amplitude of motion of the beam, the dwell time of the beam at any given point, and the Gaussian intensity profile of the beam cooperate to produce an effective flat topped illumination profile for the light that is incident on specimens in the sample volume. The total photon exposure at any given point in the sample volume is a function of both the beam intensity and the dwell time at that location. Therefore, a longer dwell time and lower intensity at the edge of the profile are in balance with a shorter dwell time and higher intensity at the center of the profile.

    摘要翻译: 在被引导到样品体积之前,激光束被周期性地偏转。 光束以频率偏转,使得光束在从样本体积收集数据的同时使一次或多次通过样本体积。 光束的运动幅度,光束在任何给定点处的停留时间以及光束的高斯强度分布协同作用,以产生入射到样品体积中的样品的光的有效平顶照明轮廓。 样品体积中任何给定点处的总光子曝光是光束强度和该位置处的停留时间的函数。 因此,轮廓边缘处的较长停留时间和较低的强度与轮廓中心处的较短停留时间和较高的强度平衡。

    BLOOD AND CELL ANALYSIS USING AN IMAGING FLOW CYTOMETER
    9.
    发明申请
    BLOOD AND CELL ANALYSIS USING AN IMAGING FLOW CYTOMETER 有权
    使用成像流量测量仪进行血液和细胞分析

    公开(公告)号:US20100232675A1

    公开(公告)日:2010-09-16

    申请号:US12631795

    申请日:2009-12-04

    IPC分类号: G06K9/00 G01N33/48

    摘要: Multimodal or multispectral images of cells comprising a population of cells are simultaneously collected. Photometric and/or morphometric image features identifiable in the images are used to identify differences between first and second populations of cells. The differences can include changes in a relative percentage of different cell types in each population, or a change in a first type of cell present in the first population of cells and the same type of cell in the second population of cells. The changes may be indicative of a disease state, indicative of a relative effectiveness of a therapy, or indicative of a health of the person from whom the cells populations were obtained.

    摘要翻译: 同时收集包含细胞群的细胞的多峰或多光谱图像。 图像中可识别的光度和/或形态测量图像特征用于识别第一和第二细胞群体之间的差异。 差异可以包括每个群体中不同细胞类型的相对百分比的变化,或第一细胞群体中存在的第一类细胞和第二细胞群体中相同类型的细胞的变化。 这些改变可以指示疾病状态,指示治疗的相对有效性或指示获得细胞群体的人的健康。

    Methods for analyzing inter-cellular phenomena
    10.
    发明申请
    Methods for analyzing inter-cellular phenomena 有权
    分析细胞间现象的方法

    公开(公告)号:US20060068371A1

    公开(公告)日:2006-03-30

    申请号:US11123610

    申请日:2005-05-04

    IPC分类号: C12Q1/00 G01N21/25

    摘要: Aspects of the present invention encompass the collection of multispectral images from a population of objects, and the analysis of the collected images to measure at least characteristic of the population, using photometric and/or morphometric features identifiable in the collection of images. In an exemplary application, the objects are biological cells. In a particularly preferred, but not limiting implementation, the plurality of images for each individual object are collected simultaneously. In an empirical study the characteristic being measured involves the synapse between conjugated cells. The conjugated cells may represent a subpopulation of the overall population of objects that were imaged. In a particularly preferred, yet not limiting embodiment, the present invention enables the quantization of the redistribution of cellular molecules due to the conjugation of different biological cells. Significantly, such quantization is not feasible with standard microscopy and flow cytometry.

    摘要翻译: 本发明的方面包括从对象群体收集多光谱图像,以及使用在图像集合中可识别的光度和/或形态测量特征,对所收集的图像的分析至少测量群体的特征。 在示例性应用中,对象是生物细胞。 在特别优选但不是限制的实现中,用于每个单独对象的多个图像被同时收集。 在经验研究中,被测量的特征涉及共轭细胞之间的突触。 共轭细胞可以代表成像对象的总体群体的亚群。 在特别优选的但不是限制性的实施方案中,本发明使得由于不同生物细胞的共轭而能够量化细胞分子的再分布。 值得注意的是,这种量化在标准显微镜和流式细胞术中是不可行的。