Blood filtering apparatus of graduated fiber density

Details Blood filtering apparatus of graduated fiber density Blood filtering apparatus of graduated fiber density

1977-06-17

1978-09-19

Spear, Jr., Frank A.

Liquid purification or separation

Filter

Within flow line or flow line connected close casing

210489, 210496, 210DIG23, B01D 2320

Patent

active

041152778

ABSTRACT:
A filter for filtering blood during surgery or dialysis by passing it through a fibrous filter mat for removal of blood cell aggregates and extraneous particulate debris, and for separation of entrained air. The presenting surface of the filter mat comprises a plurality of fluffed regions, each of graded fiber density, for selective filtration of blood aggregates and debris.

REFERENCES:
patent: 837845 (1906-12-01), Kiefer
patent: 2692654 (1954-10-01), Pryor
patent: 3069831 (1962-12-01), Young et al.
patent: 3111489 (1963-11-01), Getzin
patent: 3593854 (1971-07-01), Swank
patent: 3935111 (1976-01-01), Bentley

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