Filter assembly for intravenous liquid administration apparatus

Liquid purification or separation – Filter – Within flow line or flow line connected close casing

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Details

55158, 55159, 210472, 210500M, C02C 114

Patent

active

041771494

ABSTRACT:
A filter for intravenous liquid administration is provided having a filter housing; a filter chamber in the housing; an inlet member and an outlet member in the housing in fluid flow communication with the filter chamber; a filter in the filter chamber disposed across the line of fluid flow through the chamber from the inlet member to the outlet member so that all through flow must pass through the filter; and dividing the chamber into two portions, one upstream and one downstream of the filter; a vent in the housing in flow communication with the upstream portion of the filter chamber; and a liquid-impermeable gas-permeable porous member disposed across the line of flow through the vent, so that all vent flow must pass through the member, the member restricting such flow to gas to which it is permeable; the inlet member being shaped for attachment to a supply of liquid for intravenous administration; and the outlet member being shaped for attachment to an intravenous liquid administration apparatus.

REFERENCES:
patent: 3523408 (1970-08-01), Rosenberg
patent: 3631654 (1972-01-01), Riely
patent: 3650093 (1972-03-01), Rosenberg
patent: 4013072 (1977-03-01), Jess

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