Patent ID: 8273294

Claim:
A molded fluidic circuit card comprising: a first channel having a longitudinal axis and a first fluid flow; a second channel situated in the first channel, the second channel introducing a sample core flow within the first fluid flow; a third channel coupled to the first channel and having a longitudinal axis at an angle relative to the longitudinal axis of the first channel; a fourth channel coupled to the first channel and having a longitudinal axis at an angle relative to the longitudinal axis of the first channel, the fourth channel positioned at a location relative to the third channel to achieve three-dimensional focusing of the core sample; a first fluid reservoir coupled to the third channel; a second fluid reservoir coupled to the fourth channel; a flow rate control box in communication with the third and fourth channels, the flow rate control box controlling the flow of a second fluid from the first fluid reservoir through the third channel and into and through the first channel and the flow rate control box controlling the flow of a second fluid from the second fluid reservoir through the fourth channel and into and through the first channel; wherein the flow rate control box controls a velocity of fluid flow in the third channel relative to a velocity of fluid flow in the fourth channel to adjust the sample core flow in three dimensions, thereby achieving three-dimensional focusing of the sample core flow; wherein the first, second, third, and fourth channels and first and second fluid reservoirs are molded components in the fluidic circuit card.