Drip chamber with air vent

Details Drip chamber with air vent Drip chamber with air vent

1977-12-30

1980-04-22

Browne, William R.

Surgery

Respiratory method or device

Ozone or ion generation

73194R, 1282142, 128214R, A61M 516

Patent

active

041989716

ABSTRACT:
An intravenous set with a volume limiting chamber for precisely controlling the volume of parenteral solution administered to a patient and a drip chamber for determining the parenteral solution flow rate. The volume limiting chamber has a membrane valve which when wet will pass parenteral solution but will not pass air at normal intravenous administration pressures. The drip chamber has an air vent so that air can be vented to the drip chamber to lower the liquid level whenever the level is so high that the flow rate cannot easily be determined. The air vent can also be used to vent air from the drip chamber as an aid in priming the drip chamber.

REFERENCES:
patent: 3316908 (1967-05-01), Burke
patent: 3659629 (1972-05-01), Deaton
patent: 3967620 (1976-07-01), Noiles
patent: 3982534 (1976-09-01), Buckman
patent: 4056100 (1977-11-01), Noiles

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