Microfluid testing system with a multiple-channel disc and utility thereof

摘要

The present invention discloses a system for testing microfluid which is made with a disposable disc. The high sensitivity, high sensing accuracy, and quick response microfluidic disc is demonstrated in the present invention. It is note that easy to test microfluid without traditional detecting method, and then reduce energy and simplify procedure. Furthermore, to additive the microfluidic disc is useful to enhance blood typing, and hence raising the sensitivity by the video recognition of blood agglutination.

主权项

1. A multichannel microfluidic disc which has at least one testing mechanism, the testing mechanism comprising:
at least one feeding chamber, being an accommodating space storing microfluids imported from an exterior; at least one reaction chamber, being a reacting space receiving the microfluids discharged from the feeding chamber under centrifugal state to allow the microfluids to carry out reaction; at least one waste chamber, receiving the microfluids from the reaction chamber under centrifugal state; and a plurality of microfluidic channels, connecting the feeding chamber with the reaction chamber and connecting the reaction chamber and the waste chamber respectively, wherein a specific joint angle at the connection between the microfluidic channel and the feeding chamber controls discharging rate of the microfluids through a centrifugal rotational speed and prevents reverse flow of the microfluids, wherein a capillary valve at the connection between the microfluidic channel and the feeding chamber controls the discharging rate of the microfluids through the centrifugal rotational speed and prevents reverse flow of the microfluids, wherein the capillary valve forms an interlocked connection of at least one convex channel and at least one cavernous channel on the microfluidic channel to form a serrated appearance, wherein the diameter of the convex channel is bigger than that of the cavernous channel, and the diameter of the convex channel is also bigger than that of the microfluidic channel, wherein the ratio for the diameter of the convex channel and that of the cavernous channel is 2:1-5:1.