G - Physics – 01 – N
Patent
G - Physics
01
N
G01N 35/10 (2006.01) B01L 99/00 (2010.01) B01L 3/02 (2006.01) G01F 25/00 (2006.01)
Patent
CA 2363301
The present invention concerns a device (1) for aspirating and dispensing liquid samples having a pump (2), which comprises a cylindrical chamber (3), a piston (4) movable in this cylindrical chamber, and a piston drive (5) engaging on the piston. The device additionally comprises a pulse generator (6), which -- to ef- fect the dispensing of samples from a liquid -- is implemented for generating pressure waves in this liquid and a tip (8) connected via a line (7) with the cylin- drical chamber (3), with the piston drive (5) comprising a first drive (9) and a second drive (10), implemented as a pulse generator (6). Such a device is char- acterized in that it comprises a channel (27) for rinsing or flushing the cylindrical chamber (3), with the channel (27) discharging into the cylindrical chamber (3). Furthermore, the invention also concerns systems with, for example, 384 or more such devices which are arranged in an array.
Fornito Stefano
Ingenhoven Nikolaus
Schmid Noa
Robic
Tecan Trading Ag
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