Patent ID: 7891798
Filing Date: 2011-02-22
Classification: B41J,Y10T

Abstract:
1. A filter for a micro-fluidic device comprising: a polymer layer having a first and a second side; a plurality of filter elements formed in the polymer layer, each filter element having a plurality of pores arranged in an array having a predetermined perimeter, each filter element being separated from the other filter elements formed in the polymer layer and configured to filter fluid flow to only one aperture in another layer in a micro-fluidic device in which the polymer layer is bonded; and a plurality of fluid passages formed in the polymer layer, each fluid passage extending through the polymer layer and being positioned between the perimeters of the filter elements in the polymer layer to separate each fluid passage from the other fluid passages in the plurality of fluid passages and from each filter element in the polymer layer to seal the fluid passages and the filter elements from fluid communication in the polymer layer from one another by bonding of a first layer to the first side of the polymer layer and of a second layer to the second side of polymer layer.