Method for treating magnetic particles and biological analysis device using magnets
AssigneeBiomerieux
InventorBruno Colin
Life of this patent
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Abstract
A method for treating magnetic particles present in a solution in a container by redispersion, rinsing or displacement, the particles having novel characteristics under the effect of a specific magnet and being associated or not with biological entities. The magnetic particles undergo at least one low-intensity magnetization where they are disposed in filaments oriented according to the north-south axis of the magnet; the magnetization source and/or container is/are displaced while the magnetic effect is maintained on the magnetic particles; the magnetization source and/or container is/are displaced or the, magnetization is stopped, in order to suppress the magnetic field on the magnetic particles. Preferably, the invention can be used in the field of biology.
Claims10
A biological analysis apparatus, the apparatus including guiding and moving means for reaction vessels over at least one path including a predetermined number of positions, wherein it comprises a configuration of magnets for each path, the configuration of magnets comprising:
- upstream, a plurality of high-intensity magnetization sources which are effective to agglomerate magnetic particles contained in a reaction vessel against a wall of the vessel, and
- downstream, a low-intensity magnetization source, which is effective to orient said magnetic particles in filaments along the north-south axis of the low-intensity magnetization source.
Dependencies are inferred from the claim text.