Microvolume-liquid dispensing method and microvolume-liquid dispenser
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United States of America Patent
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Mar 5, 2019
Grant Date -
Jan 12, 2017
app pub date -
May 12, 2015
filing date -
May 20, 2014
priority date (Note) -
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status (Latency Note)
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Abstract
Provided is a microvolume liquid dispensing method in which a variable capacity passage section of a liquid passage in a microvolume liquid dispenser is pressurized from the outside and shrunk in a direction that reduces the internal capacity thereof so that a liquid that is within the variable capacity passage section is pushed toward both a downstream passage section and an up stream passage section. A microvolume of the liquid is pushed toward the downstream passage section as a result of the downstream passage section having a much larger liquid passage resistance than the upstream passage section. It is thus possible to precisely drip a microvolume liquid of a picoliter order from the tip opening of a nozzle by simple control.
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