Analysis Chip Device

Abstract

The present disclosure provides an analysis chip device used in capillary electrophoresis.

What is claimed is: 
     
         1 . An analysis chip device used in sample analysis, the analysis chip device comprising:
 a first unit including a sample introduction section through which a sample is introduced, and an analysis section at which analysis of the sample is performed; and   a second unit including a storage reservoir in which a specific liquid is enclosed, wherein:   the first unit includes a first coupling portion and the second unit includes a second coupling portion,   the first unit and the second unit are integrated by the first coupling portion and the second coupling portion being connected, thereby forming a channel for the specific liquid to flow from the storage reservoir to the analysis section,   the first coupling portion and the second coupling portion are a combination of a protrusion and a recess having shapes that fit together with each other,   one of the protrusion or the recess is formed from a material of higher pliability and elasticity than a material of another of the protrusion of the recess, and   a cross-section of at least a part of the protrusion, along an orthogonal direction to a direction in which the protrusion is fitted into the recess, is larger than a cross-section of a cavity of the recess, along the orthogonal direction at a location where the part of the protrusion makes contact when the protrusion is fitted in the recess, such that the protrusion or the recess deforms when the protrusion and the recess are fitted together, thereby preventing leakage of the specific liquid from a coupled location between the first coupling portion and the second coupling portion.   
     
     
         2 . The analysis chip device of  claim 1 , wherein:
 the second unit is positioned above the first unit, and   the first coupling portion, as the protrusion, is formed in the first unit, and the second coupling portion, as the recess, is formed in the second unit.   
     
     
         3 . The analysis chip device of  claim 2 , wherein a bottom portion of the storage reservoir is formed as the second coupling portion, and the bottom portion of the storage reservoir is covered by a bottom surface film. 
     
     
         4 . The analysis chip device of  claim 1 , wherein both of the protrusion and the recess is deformed by pressing in a case in which the protrusion is fitted together with the recess. 
     
     
         5 . The analysis chip device of  claim 1 , wherein the recess is formed from a material of higher pliability and elasticity than a material of the protrusion. 
     
     
         6 . The analysis chip device of  claim 1 , wherein the one of the protrusion or the recess is formed from a polypropylene resin, and the other of the protrusion or the recess is formed from a polymethylmethacrylate resin.