Filter for obtaining plasma or plasma water

Details Filter for obtaining plasma or plasma water Filter for obtaining plasma or plasma water

1987-01-08

1988-12-06

Fisher, Richard V.

Liquid purification or separation

Casing divided by membrane into sections having inlet

Cylindrical membrane

21032189, 210456, B01D 1301

Patent

active

047894733

ABSTRACT:
A filter comprising a filter housing with an interior within which between two closure members filter membranes in the form of hollow fibers are disposed. Between the hollow fibers a free flow space remains to which are connected two connecting pieces disposed inclined on the housing. Through said connecting pieces blood is supplied to the interior so that a filtration from the outside to the inside into the hollow fibers is possible. This and the arrangement of the connecting pieces gives an extremely favourable flow approach to the hollow fibers so that the blood flow is hardly influenced in its velocity and flow behaviour because in addition to the cross-section of the free flow space is adapted to the cross section of the blood supply line. For making such a filter at least two filters are arranged parallel and spaced apart in a plane, the support surface for the filters being rotatably mounted and the axis of rotation not intersecting any of the two longitudinal axes of the filters. During the rotation and supplying of the casting or sealing compound for the closure members through end-face supply means into the interior inclined faces are formed which in their angle correspond to the angle (.alpha., .beta.) of the connecting pieces.

REFERENCES:
patent: 3704223 (1972-11-01), Dietzsch et al.
patent: 4242203 (1980-12-01), Amicel et al.
patent: 4425234 (1984-01-01), Reitz
patent: 4640773 (1987-02-01), Nishida et al.

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