Patent ID: 9417178
Filing Date: 2016-08-16
CPC Classification: B01L,G01N

Claim Text:
1. A microchip comprising: a first substrate; a second substrate stacked on said first substrate and having a first groove on a first surface of the second substrate and a second groove on a second opposite surface of the second substrate; a third substrate stacked on said second substrate; a first fluid circuit including a space defined by said first groove and a surface of said first substrate on a first side of said second substrate; a second fluid circuit including a space defined by said second groove and a surface of said third substrate on a second side of said second substrate; and a specimen inlet for introducing in one of said fluid circuits, a specimen containing a first component and a second component different in specific gravity from each other, said first and second fluid circuits collectively comprising: said separation unit having a structure including (i) an opening for accepting the measured specimen, (ii) a first component storage unit for storing the separated first component, and (iii) a second component storage unit for storing the separated second component, arranged in this order, said first component storage unit and said second component storage unit being connected to each other through a narrow portion having a narrower width than those of said first component storage unit and said second component storage unit, and a volume of said first component storage unit being greater than a volume of the measured specimen.