| CPC G01N 1/286 (2013.01) [B02C 18/2216 (2013.01); G01N 21/01 (2013.01); G01N 35/0099 (2013.01); G01N 35/04 (2013.01); G01N 35/1009 (2013.01); G01N 2001/2866 (2013.01); G01N 2035/0441 (2013.01)] | 24 Claims |

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1. A device for handling a sample container having an open side, the device comprising:
a head having an inner chamber with an opening arranged at one end, the inner chamber having a constant cross-sectional shape taken perpendicularly to a longitudinal axis of the inner chamber, wherein the opening extends perpendicularly to the longitudinal axis;
a rotor part arranged within the inner chamber;
a rotor drive arranged for rotating the rotor part around the longitudinal axis;
a rotor displacer arranged to displace the rotor part along the longitudinal axis;
a piston comprising an edge part of a cross-sectional shape corresponding to the cross-sectional shape of the inner chamber; and
a piston displacer arranged to displace the piston along the longitudinal axis so that the edge part of the piston will scrape a wall of the inner chamber;
the device further comprising:
a holder arranged for supporting a sample container so that an open side of the sample container is in tight connection with the opening of the inner chamber; and
a head drive arranged for alternating an orientation of the head between a position where the opening of the inner chamber is oriented upwards and a position where the opening of the inner chamber is oriented downwards.
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