Disposable diagnostic plasma filter dispenser

Details Disposable diagnostic plasma filter dispenser Disposable diagnostic plasma filter dispenser

1988-11-03

1989-09-26

Jones, W. Gary

Liquid purification or separation

Casing divided by membrane into sections having inlet

Rotating mechanical agitator adjacent membrane

21032187, 210406, 210413, 210455, 21049701, 210514, 422101, B01D 1300

Patent

active

048698121

ABSTRACT:
A disposable diagnostic plasma filter dispenser includes a low cost disposable container and a rotor drive for rotationally energizing a rotor within the container. The disposable container is particularly suitable for drawing and dispensing blood samples for clinical analysis and includes a tube shaped outer wall having a frangible dispenser outlet cover, a close fitting inner tube supporting a filter membrane and a unitary rotor disposed for axel free rotation and axial translation within the inner tube in response to energization from the rotor driver. The rotor produces vortex enhanced filtration while maintaining a flow of filter fluid through the filtration gap and creating a transmembrane pressure.

REFERENCES:
patent: 3356346 (1967-12-01), Landsberger
patent: 3634228 (1972-01-01), Latham
patent: 4083788 (1978-04-01), Ferrara
patent: 4522713 (1985-06-01), Nussbaumer et al.
patent: 4534863 (1985-08-01), Bacon et al.
Lopez-Leiva, "Ultrafiltration at Low Degrees of Concentration Polarization: Technical Possibilities" Dec. 1980, pp. 210-651.
Forstrom et al.; "Formed Element Deposition onto Filtering Walls" Trans. Am. Soc. Artif. Int. Organs; vol. XXI, pp. 602-607.

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