| 摘要 |
PROBLEM TO BE SOLVED: To stop a solid body having at least a specific size or more when being closed and to allow a liquid, such as a culture solution, to flow constantly. SOLUTION: An inlet 6 and an outlet 8 in fluid are formed at positions that are separated each other in a valve cavity 2, and a diaphragm 10 is provided while covering the upper opening of the valve cavity 2. The diaphragm 10 opens or closes the part between the inlet 6 and the outlet 8 depending on whether the diaphragm 10 is pressed against or is separated from the inner wall of the valve cavity 2. A groove 12 is provided, which connects the inlet 6 and the outlet 8 on the inner wall of the valve cavity 2, whose at least partial sectional shape is in a specific size or less, and cannot be closed by the diaphragm 10 even in a closed state where the diaphragm 10 is pressed against the inner wall of the valve cavity 2. COPYRIGHT: (C)2004,JPO
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