Centrifugal screening device

A centrifugal screening device comprising an inner disk and an outer ring in fluid communication, wherein:

• the inner disk comprises a circular disk base and a concentration configuration platform protruding upwardly from the circular disk base;
• the concentration configuration platform comprises a first reagent groove and a second reagent groove disposed at a central portion thereof, the first reagent groove and the second reagent groove being semicircular, recessed, and adjacent to each other;
• a first tree-like network channel and a second tree-like network channel respectively extending outwardly from bottoms of the first reagent groove and the second reagent groove and being in fluid communication therewith;
• an outer edge of the concentration configuration platform including a plurality of protruding platforms and a plurality of recessed platforms forming a gear-shaped raised structure;
• wherein the first tree-like network channel and the second tree-like network channel comprise curved tree-structured microfluidic channels including a plurality of liquid mixing points in fluid communication with each other;
• wherein the first tree-like network channel and the second tree-like network channel extend to an end of the concentration configuration platform and terminate in a plurality of liquid outlets, each liquid outlet corresponding to one of the protruding platforms;
• the outer ring comprising a hollow annular structure including an inner disk mounting hole, an edge of the mounting hole being configured to correspond to the protruding platforms and recessed platforms of the concentration configuration platform so as to form a gear-shaped opening allowing the outer ring to be detachably mounted on and fixed with the inner disk;
• the outer ring extending outwardly from the edge of the inner disk mounting hole and being in fluid communication with each other further comprising:
• a liquid receiving hole, a sample chamber, a metering flow channel, a siphon flow channel, a waste liquid guiding chamber, and a waste liquid chamber;
• and
• wherein the liquid receiving hole is aligned with the liquid outlets of the concentration configuration platform and is in fluid communication with the sample chamber, the sample chamber being a receiving space having the metering flow channel disposed on a right side thereof and communicating with the waste liquid guiding chamber, and the siphon flow channel disposed at a lower left side thereof and communicating with the waste liquid chamber.