Patent ID: 11933760
Assignee: TECAN TRADING AG
Field: Measurement (Instruments)
Classification: CPC B  G | IPC B  G

Claim 5:
6. A method for operating a sample processing system comprising a cartridge with an inlet port and an internal gap, the internal gap comprising at least one hydrophobic surface, a capture zone and a transfer zone, the internal gap being configured to provide an electrowetting induced droplet movement, the method comprising:
introducing an input liquid into the internal gap of the cartridge via the inlet port, the input liquid comprising a carrier liquid and a processing liquid and the introducing of the input liquid is accomplished by alternatingly feeding the processing liquid and the carrier liquid into the inlet port before entering the internal gap; and
capturing in the capture zone at least a part of the processing liquid as a microfluidic droplet by use of electrowetting force and providing a passage for the carrier liquid next to the microfluidic droplet, while the processing liquid is captured in the capture zone.