Blood filter in medical devices

Details Blood filter in medical devices Blood filter in medical devices

1991-04-26

1992-09-15

Dawson, Robert A.

Liquid purification or separation

Filter

Within flow line or flow line connected close casing

210311, 210437, 210456, 210457, 2104931, 422101, B01D 3500

Patent

active

051475448

ABSTRACT:
The invention relates to a generally cylindrically shaped container having a filter medium positioned therein and a plurality of partitions, each extending upwardly from the bottom of the container providing a plurality of adjacent lower sections to include an inlet section within the container. The inlet section has an inlet port on one side of the filter medium interconnecting the inlet section with the inlet of the container, and each of the sections has an outlet port on the other side of the filter medium. When blood is introduced into the filter, the blood flows initially and at low flow rates only through the inlet section, and at sufficiently higher flow rates the blood level exceeds the height of the partition of the inlet section and further flows successively over the partitions and through the adjacent sections.

REFERENCES:
patent: 1194646 (1916-08-01), Linden
patent: 3912533 (1975-10-01), Heyer
patent: 4560477 (1985-12-01), Moldow
patent: 4663125 (1987-05-01), Gordon et al.
patent: 4664682 (1987-05-01), Monzen
patent: 4758337 (1988-07-01), Kohn et al.
patent: 4919802 (1990-04-01), Katsura
patent: 4954255 (1990-09-01), Muller et al.
patent: 4964984 (1990-10-01), Reeder et al.

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