Patent ID: 9423336
Filing Date: 2016-08-23
CPC Classification: G01M,G01N

Claim Text:
1. A system for evaluating particles of a biological sample obtained from an individual, comprising: a volumeter assembly having a conduit that receives a fluid suspension containing the particles therethrough, the conduit defining an axial conduit wall length having a central region of electrical resistivity disposed between a first distal region of electrical resistivity lower than the electrical resistivity of the central region and a second distal region of electrical resistivity lower than the electrical resistivity of the central region; a first chamber in fluid communication with a first orifice of the volumeter assembly conduit, the first chamber containing at least a first portion of the fluid suspension; a second chamber in fluid communication with a second orifice of the volumeter assembly conduit, the second chamber containing at least a second portion of the fluid suspension; and a current source and sensing circuit module in direct electrical connection with the first and second distal regions of the volumeter assembly, wherein the current source and sensing circuit module provides an electrical excitation current to the first and second distal regions to establish a particle-sensitive zone within the conduit, and wherein the current source and sensing circuit module detects current changes occasioned by particles of the biological sample passing through the particle-sensitive zone.