Pneumatic Micro Dispenser System for Ubiquitous Microchemical Devices
Tadahiro Hasegawa*, Fumiyuki Omatsu**, and Koji Ikuta***
*Shibaura Institute of Technology, 3-7-5 Toyosu, Kohto-ku, Tokyo 135-8548, Japan
**Osaka Institute of Technology, 5-16-1 Omiya, Asahi-ku, Osaka 535-8585, Japan
***The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
This paper describes the development of the pneumatic micro dispenser system for ubiquitous microchemical devices, such as health care devices. The pressurization and decompression switchable micropump chip, the dispenser chip, and the 10-directional switching valve chip are developed successfully as components of this system. This system assembled with these chips can divide liquids into approximately 0.5 µl samples if its disk is simply rotated manually, and the system can be reused by simply replacing the dispenser chip where the sample exits.
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