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US 7,862,702 B2Granted
Methods and apparatus for electrosmear analysis
AssigneeBoard of Regents, The University of Texas System
InventorsPeter R. C. Gascoyne, Jody V. Vykoukal, Chandra Das, Frederick F. Becker
Life of this patent
Estimating the term…
Abstract
Methods and apparatus for preparing a smear for cytopathology or other analysis. In a representative embodiment, cells of a sample are subjected to a dielectrophoretic force to segregate the cells into two or more zones of a surface. The particles are attached to the surface, thereby defining a “segregated smear.” The segregated smear is then fixed and stained for cytopathology analysis.
Claims6
An apparatus for preparing a smear for cytopathology, comprising:
- a dielectrophoretic field flow fractionator configured to subject particles of a sample to a dielectrophoretic force by simultaneously applying a swept frequency signal to a first set of electrodes and a fixed frequency signal to a second set of electrodes to segregate the particles into two or more zones;
- and
- a dielectrophoretic collector coupled to the fractionator configured to subject the particles to a dielectrophoretic force to attach the particles to a surface.
Dependencies are inferred from the claim text.