Hematology Analyzer: OEM Pumps & Compressors

Automated hematology analyzers perform blood counts (CBCs) by aspirating a blood sample, precisely diluting it with reagents, and passing the cell suspension through detectors that use impedance or flow cytometry to count and classify cells. The fluidic system, driven by pumps, is the heart of the analyzer, controlling every step of this process from sample aspiration to waste removal. 

The Engineering Challenge 

 Hematology analyzer fluidics rely on a carefully controlled system of pressure and vacuum. Pumps are used to aspirate the blood sample, move the sample and diluents through shear valves and mixing chambers, drive the cell suspension through the counting aperture, and evacuate waste. The pumps must be highly reliable and provide stable, consistent pressure and vacuum to ensure precise dilutions and constant flow rates for accurate cell counting. Any fluctuation can affect results. The system must be robust enough to handle potential protein buildup and require minimal maintenance to maximize uptime in a clinical lab setting. 

The Thomas Solution

Thomas Mixed-Operation Pumps are the proven choice for providing the core pressure and vacuum for hematology analyzer fluidics. Our oil-less design ensures the air supply is clean and free of contaminants that could interfere with the analysis. We engineer our pumps for long-life and stable performance, delivering the consistent pressure and vacuum that is the foundation of an accurate CBC. For OEMs looking to simplify their design, our dual-head diaphragm pumps can be configured to provide both the necessary pressure and vacuum from a single, compact motor, reducing footprint and component count.