| US 7,553,454 B2 | ||
| Micro chip device | ||
| Yukio Yamada, Chofu (Japan); Naoto Kakuta, Chofu (Japan); and Taisuke Hirono, Chofu (Japan) | ||
| Assigned to The University of Electro-Communications, Tokyo (Japan) | ||
| Filed on May 22, 2007, as Appl. No. 11/751,793. | ||
| Prior Publication US 2008/0056953 A1, Mar. 06, 2008 | ||
| Int. Cl. B01L 3/00 (2006.01); B01L 3/02 (2006.01); B81B 1/00 (2006.01) | ||
| U.S. Cl. 422—100 [422/99] | 15 Claims |
| 1. A micro chip device, comprising:
a first channel wherein buffer solution flows;
a second channel wherein blood flows;
a third channel connected with a downstream of said first and second channels wherein said buffer solution and said blood
flow, forming layers having a longitudinal interface between said buffer solution and said blood;
first solution supply means for controlling supply amount of said buffer solution;
second solution supply means for controlling supply amount of said blood;
a reaction portion located at said third channel which does not react to said buffer solution but reacts to said blood;
wherein said longitudinal interface between said buffer solution and said blood laterally moves in said third channel according
to a control of supply amount of said buffer solution by said first solution supply means and a control of supply amount of
said blood by said second solution supply means;
said reaction portion being an area coated with a coagulant, said coagulant does not react to said buffer solution but reacts
to said blood so as to aggregate platelets; and
said reaction portion being located at a wall face of said third channel which contacts said laterally moving interface.
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