Liquid purification or separation – Filter – Movable medium
Patent
1993-08-11
1995-01-10
Spear, Frank
Liquid purification or separation
Filter
Movable medium
2103601, 210781, 422 72, 422101, 428131, 428157, B01D 3315
Patent
active
053804350
ABSTRACT:
A cytocentrifugation device, rotor, and apparatus are improved by providing the device with a plurality of liquid-receiving chambers arranged serially along and opening into an elongate conduit leading to and terminating within a filter-pad-holder so that a filter-pad-prewetting liquid can be passed along such conduit and into a liquid-flow opening of a filter pad held by such holder in advance of passage along said conduit and through such liquid-flow opening in the filter pad of a cell-carrying liquid sample during a centrifugation run of the apparatus. Retention of prewetting liquid in the filter pad around the sample liquid flow helps to prevent loss of cells to the filter pad. Various other structural modifications of the cytocentrifugation device and filter pads used therewith also help to prevent loss of cells to the filter pad.
REFERENCES:
patent: 4391710 (1983-07-01), Gordon
patent: 4423699 (1984-01-01), Boeckel et al.
patent: 4428323 (1984-01-01), Wells
patent: 4521473 (1985-06-01), Sakamoto et al.
patent: 4574729 (1986-03-01), Wells
patent: 4678579 (1987-07-01), Griffin
A Slide Centrifuge Journal of Laboratory Clinical Medicine 1966, vol. 68, 494-501.
Ames Makes Cytocentrifugation Trade Literature 1987.
Quirante Carmelo G.
Stokes Barry O.
Reifsnyder David
Spear Frank
Wescor, Inc.
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