Airway adapter

Details Airway adapter Airway adapter

1987-01-16

1989-08-01

Howell, Nyle L.

Surgery

Truss

Pad

128719, A61B 508

Patent

active

048525839

ABSTRACT:
A tubular airway adapter having a hollow interior and a cylindrical wall for providing a sample gas air flow. The adapter includes an annular channel in the cylindrical wall and a plurality of radial channels extending from the annular channel to the interior. The annular channel is in fluid communication with ambient atmosphere through a port in the cylindrical wall. The wall of the adapter increases in thickness from on either side of the annular channel towards the annular channel to provide a double conically shaped interior and a wall region which protrudes into the interior at the location of the annular channel.

REFERENCES:
patent: 3667475 (1972-06-01), Venturelli et al.
patent: 3874377 (1975-04-01), Davidson
patent: 4297871 (1981-11-01), Wright et al.
patent: 4558708 (1985-12-01), Labuda et al.
patent: 4558709 (1985-12-01), Aida et al.
patent: 4679573 (1987-07-01), Parnoff et al.

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