| 摘要 |
A substrate and an elastomer are bonded each other, and then, a ditch is formed at the bonded surface of the substrate or the elastomer to constitute a flow channel and thus, to constitute a minute flow channel device with the flow channel. Then, a through-hole functioning an inlet and/or outlet is formed at the elastomer so as to be communicated with the flow channel. Then, a convex or concave joint is formed at the elastomer with integration so as to be opened outward from the through-hole so that the inclination angle of said joint is set to not less than 45 degrees and less than 90 degrees. Then, a joining device is pressed and joined with the minute flow channel device via the joint. Therefore, the connection for injecting and discharging a substance such as fluid or gas can be easily realized and automatized, and the device exchange can be performed easily. <IMAGE>
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