Cell counter and diagnostic device

Disclosed is an apparatus for determining the concentration of cells of a given size in a fluid sample, the sample comprising a plurality of cells, the apparatus comprising: a light source arranged to emit light along a central axis to illuminate the plurality of cells in the fluid sample; a detector arranged to receive light at a plurality of displacements relative to the central axis and to generate a plurality of signals, the light having passed through a plurality of cells in the fluid sample, each signal being associated with and indicative of an intensity of light received at a respective one of the plurality of displacements; and a processor arranged to determine a concentration of cells of a given size based on the plurality of signals from the detector, where the processor is arranged to compare the plurality of signals from the detector to one or more pre-stored thresholds or profiles indicative of a particular concentration. 公开了一种用于确定流体样品中给定大小细胞的浓度的设备，样品包括多个细胞，设备包括：光源，设置成沿着中心轴发射光以照射流体样品中的多个细胞；检测器，设