Particle washing and separation method

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United States of America Patent

PATENT NO 4698311
SERIAL NO

06676973

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A device is described for preparing a standardized concentration of washed particles suspended in a fluid. The preferred method is directed to the preparation from whole blood specimens of a standardized concentration of washed red cells in isotonic solution using a device comprising a test tube formed at the bottom end with a nipple-like receptacle having a predetermined volumetric capacity. Whole blood is mixed with isotonic solution in the device which is then centrifuged causing the red cells to be first washed and then packed into the receptacle. The liquid contents of the device are then decanted without disturbing the packed red cells. Thereafter, the red cells are reconstituted to the desired concentration by adding isotonic solution to a predetermined level in the tube and mixing the cells into the isotonic solution.

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Patent Owner(s)

Patent OwnerAddress
ORTHO DIAGNOSTIC SYSTEMS INC A NJ CORPNot Provided

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Davies, Jr Donald M Raritan, NJ 1 30
Hall, Shelby J Stewartsville, NJ 2 34
Olekna, David J Annandale, NJ 3 43

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