Filter device

Details Filter device Filter device

1977-10-20

1980-02-19

Truluck, Dalton L.

Surgery

Respiratory method or device

Ozone or ion generation

55159, 128214C, 210436, 210DIG23, A61M 500

Patent

active

041889487

ABSTRACT:
A filter device for connecting in series with a parenteral liquid administration line delivering a medical liquid to a patient. The filter unit includes a housing with a filter member that is previous to liquid but impervious to gas, and a gas collection chamber. A nonpuncturable hypodermic needle guide structure on the unit aligns a hypodermic needle with the gas collection chamber and limits cocking of the needle to prevent puncture or damage to the filter member.

REFERENCES:
patent: 3778973 (1973-12-01), Martinez
patent: 3905905 (1975-09-01), O'Leary et al.
patent: 4009715 (1977-03-01), Forberg et al.
patent: 4063555 (1977-12-01), Ulinder

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