Patent ID: 9164023
Filing Date: 2015-10-20
Classification: B01L,B03C,C12M,C12N,G01N

Abstract:
1. A cell sorting apparatus comprising: a flow channel through which fluid including cells flows; a signal analysis section that provides a cell sorting signal requesting an operation to sort said cells, said signal analysis section comprising a set of measurement electrodes; a signal generator that generates and supplies a sequence of enable signals in accordance with the cell sorting signal; an electric-field application section configured to apply an electric field having a gradient in a direction different from the flowing direction of said fluid at a first position on said flow channel in accordance with the cell sorting signal and the sequence of enable signals; and a plurality of channel branches configured to split said cells changing their flowing directions due to a dielectrophoretic force caused by application of said electric field at a second position on a downstream side of said first position on said flow channel, wherein said electric-field application section has a plurality of electrode pairs for creating said electric field and control of said electric field is carried out individually on each of said electrode pairs or each of electrode-pair groups obtained by grouping said electrode pairs by applying the sequence of enable signals to said electrode pairs or said electrode-pair groups in sequence to sequentially create said electric field.