Patent ID: 7935316

Claim:
A chemical reaction cartridge, comprising: an elastic body with which at least a portion of the chemical reaction cartridge is formed; and a plurality of chambers and a flow path to connect the plurality of chambers, which contain solution inside, wherein the solution is moved or blocked in the chambers and the flow path by applying external force to the elastic body from outside, the elastic body is structured in at least two elastic body layers which are layered vertically and the plurality of chambers and the flow path are provided between an upper elastic body layer and a lower elastic body layer, a substrate which is harder than the elastic body is attached to a lower surface of the lower elastic body layer by a concave portion formed on one of the lower surface of the lower elastic body layer and an upper surface of the substrate engaging with a convex portion formed on other of the lower surface of the lower elastic body layer and the upper surface of the substrate, and a diameter of the convex portion is larger than a diameter of the concave portion, and the convex portion and the concave portion are fixed by an elastic deformation force of the elastic body when the convex portion engages with the concave portion.