| 摘要 |
A mechanism for switching a sample holder 14, 40 holding a fluidic sample 38 between orbital shaking motion for sample mixing and a rotary centrifugal motion for sample separation comprises a gear 11 drivable by drive unit 42 to move selectively in a first direction A or in a second direction B, an orbital motion generator (2 to 5) configured for generating an orbital motion of the sample holder, a rotary motion generator (2, 4, 5) configured for generating a rotary motion of the sample holder , and a one-way clutch arrangement 12, 13 configured for selectively coupling the gear with the orbital motion generator (2 to 5) to transfer a driving force from the gear to the orbital motion generator (2 to5) for generating the orbital motion when the gear is driven in direction A and to freewheel when the gear is driven in direction B or coupling the gear with the rotary motion generator (2, 4, 5) to transfer a driving force from the gear to the rotary motion generator (2, 4, 5) for generating the rotary motion when the gear is driven in direction B and to freewheel when the gear is driven in direction A. |
