Patent ID: 9597692
Date: 2017-03-21
CPC Classifications: B01L,B03B,G01N

Claim:
1. A micro-fluidic device for sorting particles in a liquid sample, the device comprising a micro-fluidic channel comprising a particle separation region comprising an array of grooves, the grooves being oriented at an angle in the range of 20 degrees to 70 degrees with respect to a main axis of the channel; a means for injecting the liquid sample into said micro-fluidic channel; a means for collecting particles whereby the means for injecting the liquid sample and the means for collecting particles are interconnected via the micro-fluidic channel; and the liquid sample comprising the particles to be sorted, the liquid sample being disposed within the micro-fluidic channel, wherein the dimensions of the micro-fluidic channel are considerably larger than the dimensions of the grooves to prevent confinement effects, the height of the micro-fluidic channel being at least five times the depth of the grooves, the micro-fluidic channel being configured to avoid recirculation effects inside the micro-fluidic channel, and wherein the width and spacing between the grooves is at least 2 times the size of the particles to be sorted.