Air-in-line sensing apparatus

Details Air-in-line sensing apparatus Air-in-line sensing apparatus

1994-09-12

1996-07-23

Noland, Thomas P.

Measuring and testing

Gas content of a liquid or a solid

By vibration

73 1911, G01N 2900

Patent

active

055378536

ABSTRACT:
An air-in-line sensing apparatus for use with a parenteral fluid administration set to detect the passage of air through a fluid conduit. The apparatus comprises a first housing having a first arcuate section mounting a first transducer adjacent the first arcuate section and a second housing having a second arcuate section mounting a second transducer adjacent the second arcuate section. One housing is independently movable relative to the other housing so that when the movable housing is moved towards the other housing, the first and second arcuate sections capture a length of administration set tubing therebetween providing secure intimate contact therewith. A signal may be generated from one of such transducers, passed through the fluid conduit and received by the other transducer to detect whether the conduit is carrying air.

REFERENCES:
patent: 3171273 (1965-03-01), Dijkema
patent: 3182487 (1965-05-01), Graham
patent: 3225585 (1965-12-01), Wohnoutka
patent: 3486370 (1969-12-01), Chedeville et al.
patent: 3974681 (1976-08-01), Namery
patent: 4418565 (1983-12-01), St. John
patent: 5394732 (1995-03-01), Johnson et al.

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