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    • 41. 发明申请
    • CYTOMETER HAVING FLUID CORE STREAM POSITION CONTROL
    • 具有流体核心流动位置控制的流量计
    • US20080124805A1
    • 2008-05-29
    • US11744685
    • 2007-05-04
    • James A. CoxBernard S. Fritz
    • James A. CoxBernard S. Fritz
    • G01N35/08G01N1/10
    • G01N15/1404Y10T436/118339
    • A cytometer having two or more chambers or regions in a containment structure of sheathing fluid that may be used to provide hydrodynamic focusing of another fluid having particles to be observed. The latter fluid may be a core stream which may have its lateral position in a flow or measurement channel affected by control of at least one of the parameters of the several segments of the sheathing fluid. The lateral position of the core stream may be aligned with a light source and detector for a count and observation of the particles. Electrical signals from the detector may be fed back to a processor which may control one or more parameters of the sheathing fluid in the various chambers or regions via pumps, valves, and flow and pressure sensors. This control of parameters may provide for the positioning of the core stream. This cytometer may be miniaturized.
    • 具有在护套液体的容纳结构中的两个或更多个腔室或区域的细胞计数器,其可用于提供具有待观察颗粒的另一种流体的流体动力聚焦。 后一流体可以是芯流,其可以在流动或测量通道中具有其横向位置,该流动或测量通道受到护套流体的几个段的参数中的至少一个参数的控制的影响。 核心流的横向位置可以与光源和检测器对准,用于计数和观察颗粒。 来自检测器的电信号可以被反馈到处理器,处理器可以通过泵,阀和流量和压力传感器来控制各个室或区域中的护套流体的一个或多个参数。 参数的这种控制可以提供核心流的定位。 该细胞仪可能会小型化。
    • 42. 发明授权
    • Cytometer having telecentric optics
    • 血细胞计数器具有远心光学
    • US07283223B2
    • 2007-10-16
    • US10953197
    • 2004-09-28
    • Bernard S. Fritz
    • Bernard S. Fritz
    • G01J1/42G01J3/30G01N21/00
    • G01N15/1459G01N2015/1452
    • A mechanism for moving and positioning a light source so that its light impinges a target as it moves on or off axis of an optical system. A detector may receive scattered light at a same position whether the light impinging the target is on or off axis due to, for example, a telecentric optical system. Further, the light may be positioned so that the detector is maximally impinged with scattered light. An output may go to a processor that sends a signal to the light source to move the emitted light so as to continually impinge the target as it moves on or off axis. An array of light sources may used in lieu of the moving light source. To move the light beam, another light at another position in the array may be selected to replace a previously selected light source.
    • 一种用于移动和定位光源的机构,使得当光线在光学系统的移动或离开轴线时它的光线撞击目标。 由于例如远心光学系统,检测器可以在相同位置处接收散射光,不论射入目标的光是否在轴上。 此外,光可以被定位成使得检测器被最大程度地与散射光撞击。 输出可以转到处理器,该处理器向光源发送信号以移动发射的光,以便当目标在轴上移动时不断地撞击目标。 可以使用光源阵列代替移动光源。 为了移动光束,可以选择阵列中另一位置处的另一个光以替代先前选择的光源。