Airway adapter with backflush tube

Details Airway adapter with backflush tube Airway adapter with backflush tube

1990-01-25

1991-08-27

Rivell, John

Fluid handling

With cleaner, lubrication added to fluid or liquid sealing...

Cleaning or steam sterilizing

137550, 55302, 128719, B01D 4604

Patent

active

050425226

ABSTRACT:
A backflushing system for an inlet filter in an airway adapter in a gas flow sampling and analyzing system includes a back flush fluid supply conduit and sampling conduit connected to the airway adapter by a single coupling element. Flow of back flush fluid causes material blocking the filter to be washed away into the respiratory conduit for disposal. Flow of backflush fluid is restricted to one way flow through the backflush conduit by a disk shaped valve member mounted in the air way adapter.

REFERENCES:
patent: 3705478 (1972-12-01), Vaneldik et al.
patent: 4456014 (1984-06-01), Buck et al.
patent: 4679573 (1987-07-01), Parnoff et al.

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