Chemistry: analytical and immunological testing – Involving an insoluble carrier for immobilizing immunochemicals – Carrier is inorganic
Patent
1994-04-14
1997-02-11
Hutzell, Paula K.
Chemistry: analytical and immunological testing
Involving an insoluble carrier for immobilizing immunochemicals
Carrier is inorganic
209214, 209222, 210695, 210767, 435 2, 435 4, 435 71, 435 72, 435 721, 435 723, 436501, 436518, 436807, 436824, G01N 33553
Patent
active
056020422
ABSTRACT:
An apparatus and method provide automated collection and transfer of particles from a liquid suspension to a glass slide for visual examination. A magnet is positioned adjacent to a solution which contains particles tagged with magnetic beads, for example cells, so that the magnetic particles flow toward the magnet and collect against a collection surface positioned between the particles and the magnet. A transfer mechanism applies a selected pressure to a second side of the collection surface for transferring collected cells to a viewing slide. The apparatus includes a device for dispersing the liquid suspension of particles prior to the collection process and for collecting particles against the collection surface with a spatial distribution advantageous for visual examination. The transfer operation maintains this spatial distribution. The cell-dispersing device and the collection surface are on a common structure, for unitary movement, and which is readily disposable and replaceable for each sample of particles
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Cytyc Corporation
Hutzell Paula K.
Wolski Susan C.
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