Patent ID: 9707560
Date: 2017-07-18
CPC Classifications: B01L,F04B,G01N

Claim:
1. Method of filling nozzles of a dispensing system of a test system comprising a dispensing system and a microfluidic device, which microfluidic device comprises at least one sample application opening and a microfluidic passage in which a measuring region is disposed, and the sample application opening is connected to the microfluidic passage, and the dispensing system comprises at least one container with at least one reservoir containing a solution, and the container is connected via a fluid line to at least one micro-pump, after which at least one nozzle is provided, the at least one nozzle being configured to dispense the solution into the sample application opening of the microfluidic device, the method comprising at least the following steps: transporting the solution from the container via the nozzle of the dispensing system to the sample application opening of the microfluidic device via the micro-pump, further transporting the solution into the measuring region of the microfluidic passage of the microfluidic device, measuring a light signal in the measuring region of the microfluidic device via at least one photosensitive sensor with a plurality of photodetectors, and deactivating the micro-pump when the light signal is detected and/or changes which indicates that the solutions have reached the measuring region of the microfluidic passage and hence are also present in the nozzles of the dispensing system which transports the liquids to the microfluidic device via the sample application opening.