Chemistry: molecular biology and microbiology – Apparatus
Reexamination Certificate
2002-05-31
2009-12-22
Kim, Young J (Department: 1637)
Chemistry: molecular biology and microbiology
Apparatus
C425S006000, C425S091000
Reexamination Certificate
active
07635585
ABSTRACT:
A micro (thin film type) valve apparatus for controlling fluid flow and its rate using a microbead and a method for controlling the apparatus are provided. The microbead is moved by the magnetic forge generated by upper and lower electromagnets disposed on the top and bottom surface of the body or by the electric field generated by upper and lower electrode plates disposed on the top and bottom surface of the body, thereby interconnecting or blocking flow channels in the body. The micro valve apparatus and the method for controlling the same are suitable for thin film type diagnostic assay devices, such as lab-on-chips, protein chips, or DNA chips, for detecting small quantities of analytes in fluids, and more suitable for interconnecting or blocking channels formed in thin disk type apparatus including general CD-ROMs, DVDs, bioCDs, and bio DVDs.
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Krusemark et al. Micro ball valve for fluidic micropumps and gases. Proc. Micro Total Analysis Systems '98 Workshop, pp. 399-402.
Kim Young J
Staas & Halsey , LLP
Woolwine Samuel
Yoo Jae Chern
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