| Patent application number | Description | Published |
|---|
| 20090155927 | MICROREACTOR AND METHOD OF LIQUID FEEDING MAKING USE OF THE SAME - A microreactor capable of reaction between a sample and a mixed reagent containing a mixture of multiple reagents, which microreactor avoids the interposition of air between driving solution and reagents and realizes high-precision controlling of the timing of mixing of reagents and other liquids, the mixing ratio of liquids, the pressure for liquid feeding, etc. Further, there is provided a method of liquid feeding making use of the same. Accordingly, a flow path branched at the position of an inlet from a flow path through which an opening communicating with an external pump communicates with the inlet is provided with an air evacuation flow path with its terminal open outward. Further, the flow path resistance of the air evacuation flow path for a liquid is made greater than the flow path resistance, for the liquid, of a flow channel from the reagent storage chamber to a reagent feed-out flow path. | 06-18-2009 |
| 20090233378 | Method of Reaction in Flow Channel of Microchip and Analysis Device - In case of performing a reaction between reacting material and reagent by bringing the reagent in contact with the reacting material through flowing the reagent into a reaction flow channel in which the reaction material which reacts with the reagent is carried on a wall surface of the reaction flow channel of a microchip, the reaction is expedited efficiently by passing the reagent to the reacting material. The reagent | 09-17-2009 |
| 20100028206 | MICROCHIP AND METHOD OF MANUFACTURING MICROCHIP - A microchip having: two flow path substrates having flow paths in a shape of a groove formed on one side of each substrate thereof; and a communication hole substrate on which a communication hole is formed to communicate the flow paths of the two substrates each other; wherein the two substrates are bonded in a way that the surfaces, on which the flow paths in the shape of the groove formed, face each other, having the communication hole substrate therebetween. | 02-04-2010 |
| 20100232986 | MICRO TOTAL ANALYSIS SYSTEM EQUIPPED WITH LEAKAGE PREVENTION MECHANISM - A micro total analysis system, comprising: an examination chip provided with a micro flow path and a flow path opening section communicating with a micropump on the upstream side of a reagent containing section, a drive fluid tank containing drive fluid, a micropump unit provided with a plurality of the micropumps such that the upstream side of each micropump communicates with the drive fluid tank and a flow path opening communicating with the micro flow path of the examination chip is provided on the downstream side, and a system body including the micropump unit and the drive fluid tank in one storing body, wherein analysis is performed while the examination chip is attached to the system body, and a mechanism for altering the direction of pressure at the flow path opening of the micropump unit depending on attaching/detaching of the examination chip to/from the system main body is provided. | 09-16-2010 |
| 20100261290 | Method of reaction in flow channel of microchip and analysis device - In the case of passing a reagent in a reaction channel in a microchip, which carries a reactant capable of reacting with the reagent on the wall thereof, and bringing the reactant into contact with the reagent so as to carry out a reaction, the reagent is efficiently passed to the reactant to thereby promote the progress of the reaction. In carrying out the reaction as described above, the reagent ( | 10-14-2010 |
| 20100304498 | MICROCHIP REACTION DETECTION SYSTEM AND METHOD OF REACTION OF MICROCHIP IN FLOW PATH - Disclosed is a microchip reaction detection system comprising: a microchip comprising a driving liquid injection unit into which a driving liquid for driving a solution is injected and a detection unit on which a substance to be reacted is supported and where the reaction between the substance and the solution is detected; a driving liquid pump for injecting the driving liquid into the driving liquid injection unit; an air pump for injecting a gas into the detection unit; and a control unit for controlling the driving liquid pump so that the driving liquid can be injected into the driving liquid injection unit and also controlling the air pump so that the gas can be injected into the detection unit intermittently in an amount at least effective for pushing away the solution injected in the detection unit while feeding the solution to the detection unit. | 12-02-2010 |
| 20110147408 | MICROCHIP, MICROCHIP LIQUID SUPPLY SYSTEM, AND MICROCHIP LIQUID SUPPLY METHOD - Provided is a microchip which is capable of determining the quantity of the liquid in the chip and dividing the liquid, and has a relatively simple flow passage structure. In the microchip liquid supply system, a portion of the liquid in an upstream passage among the liquid injected into a first flow passage is supplied from a liquid discharge passage by operating a suction pump connected to a liquid supply passage in such a state that an air vent hole is closed. Thereafter, the suction pump is operated with the air vent hole closed, whereby a portion of the liquid in a quantity determination passage among the liquid injected into the first flow passage is supplied from a liquid supply passage. | 06-23-2011 |
| 20110226339 | MICROCHIP AND LIQUID SENDING METHOD FOR MICROCHIP - A microchip capable of sending liquid in a micro flow channel to a predetermined place irrespective of the pressure difference and sending a mixture of two or more liquid masses to a predetermined place even if the channel structure is simple. The microchip comprises an intermediate reservoir portion provided in a micro flow channel and adapted for temporarily holding liquid sent through the micro flow channel. The microchip is characterized in that the intermediate reservoir portion has a side channel, the volume of the intermediate reservoir portion is smaller than the total volume of the liquid sent into the intermediate reservoir portion, the side channel is provided for communication of a micro flow channel on the upstream side of the intermediate reservoir portion with a micro flow channel on the downstream side thereof, and the cross-section area of the side channel is smaller than that of the micro flow channel. | 09-22-2011 |
