Patent ID: 8828212

Claim:
A dielectric cytometric apparatus comprising: a flow channel including a stenosis channel through which a single cell is capable of flowing and branch channels provided on the downstream side of said stenosis channel as branch channels for sorting cells included in liquid flowing through said flow channel; a first electrode pair capable of creating an alternating current electric field on said stenosis channel; an analysis unit configured to measure a complex dielectric constant depending on said cell for each of said cells each flowing through said stenosis channel by creating said alternating current electric field on said stenosis channel through application of an alternating current voltage to said first electrode pair; a second electrode pair capable of creating an electric field on a flow-channel portion on the downstream side of said stenosis channel but on the upstream side of said branch channels, wherein the second electrode pair comprises a first electrode which comprises electrode pointers, the electrode pointers each protruding in a direction towards a second electrode; and a cell sorting unit configured to apply a dielectrophoretic force to said cells in order to sort said cells through use of said branch channels by driving said second electrode pair to create said electric field on the basis of said complex dielectric constant measured by said analysis unit.