Inline intravenous final filter unit

Details Inline intravenous final filter unit Inline intravenous final filter unit

1979-06-20

1981-05-12

Spitzer, Robert H.

Liquid purification or separation

Processes

Liquid/liquid solvent or colloidal extraction or diffusing...

210446, 2103211, 2103232, 2104332, B01D 2932, B01D 3100

Patent

active

042670535

ABSTRACT:
An inline intravenous final filter unit especially of the bacteria-retentive type and adapted to be incorporated in administering sets for administering infusion solutions to patients. The filter unit comprises a casing having an inlet cap at its one end and an outlet cap at the other end thereof, at least one porous hollow fiber arranged within the casing in parallel to the longitudinal direction thereof and having a porosity rating of 0.1 to 5.mu., the hollow fiber being closed at its one end opposed to the inlet cap and open at the other end thereof opposed to the outlet cap, the hollow fiber further being tightly fixed at the outer peripheral portion of its open end to the inner wall of the casing by a securing member, and the ratio of the total effective filtration area of the hollow fiber to the capacity of the casing being at least about 4:1.

REFERENCES:
patent: 2675000 (1954-04-01), Ford
patent: 2704544 (1955-03-01), Ryan
patent: 2879784 (1959-03-01), Cutter
patent: 3471019 (1969-10-01), Trasen et al.
patent: 3612282 (1971-10-01), Cheng
patent: 3760949 (1973-09-01), Carey et al.
patent: 3970084 (1976-07-01), Raines et al.
patent: 3978857 (1976-09-01), McPhee
Robert Rapp et al.; "Evaluation of a Prototype Air Venting Inline Intravenous Filter Set", 1975; American Journal of Hospital Pharmacy, pp. 1253-1259, Dec. 1975.

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