Patent ID: 8400632

Claim:
A hematology analyzer for performing a lysis-free single dilution analysis, comprising: (i) a light source; (ii) a flowcell positioned to be irradiated by the light source; (iii) at least one optical element configured to focus light from the light source onto the flowcell; (iv) a scanning device for deflecting the focused light from the light source to enable the focused light to sweep back-and-forth across a sample stream moving within the flowcell, wherein the sample stream includes a mixture of a reagent solution, free of a lysing agent, and a sample of body fluid; (v) at least one detector channel for obtaining a scatter or fluorescence signal emitted from a particle within the sample stream after being irradiated by the focused light; and (vi) a processor configured to process signals from the at least one detector channel so as to analyze the irradiated particle.