Vented cone filter

Details Vented cone filter Vented cone filter

1985-02-15

1986-10-07

Rosenbaum, C. Fred

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

604406, A61M 516

Patent

active

046156941

ABSTRACT:
A vented cone filter for use with intravenous liquids which may contain undesired particles as well as gas such as air therewith. A vented chamber of elongated tubular construction and provided with a pointed input opening at one end thereof receives a complementary mating end cap having an output opening therewith. Mounted within the chamber of the main body and supported by the end cap is a cone filter of plastic framework supporting a hydrophilic filter element therewith. Around the ouside of the chamber body appropriate openings are provided and a hydrophobic membrane encompasses same for allowing blocked gas within the chamber to be vented to the outside. Preferably, a sleeve is molded over the hydrophobic membrane once installed for securement and protection thereof.
As well as the structure of the present invention, the method of making of same is also encompassed by this invention.

REFERENCES:
patent: 3803810 (1974-04-01), Rosenberg
patent: 3954623 (1976-05-01), Hammer et al.
patent: 4004587 (1977-01-01), Jess
patent: 4031891 (1977-06-01), Jess
patent: 4198971 (1980-04-01), Noiles
patent: 4294594 (1981-10-01), Sloane, Jr. et al.
patent: 4298358 (1981-11-01), Ruschke

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