| 摘要 |
PROBLEM TO BE SOLVED: To provide a compact microdispenser that can efficiently and accurately measure a minute amount of a sample inside a chip and transport it to a target chip. SOLUTION: The microdispenser includes: a micro dispensing chip having a sample introduction tube for introducing a fluid sample, a sample dispensing tube for dispensing the sample, and a sampling and leading-out tube for introducing a predetermined amount of a sample through the sample introduction tube according to a reduced pressure and selectively leading out the introduced sample to any one of a plurality of sample dispensing tubes according to an applied pressure; a micro multi-directional switching valve chip having a selective release tube driven in a latching manner so as to selectively open one of the sample dispensing tubes to the atmosphere; and a pressure-switching micro-pump chip having a pump selecting tube driven in a latching manner so as to alternately connect the opening ends of a suction port and an exhaust port of a micro-pump with the sampling and leading-out tube. COPYRIGHT: (C)2010,JPO&INPIT |
