Emergency ventilation tube

Details Emergency ventilation tube Emergency ventilation tube

1981-07-07

1984-05-08

Recla, Henry J.

Surgery

Respiratory method or device

Respiratory gas supply means enters mouth or tracheotomy...

12820228, A61M 1600

Patent

active

044468644

ABSTRACT:
An emergency esophageal ventilating airway includes coaxial tubular members insertable through a patient's mouth and into the esophagus. The coaxial tubes are attached to a coupling which is inserted into a standard face mask. The longer, inner, one of the tubes extends into the lower esophagus and has an inflatable occluding cuff at its inner or lower end while the outer end extends through the coupling and mask to the atmosphere providing a clear venting passage from the stomach. The outer tube has holes lying near the laryngeal region and communicates, through chambers in the coupling, with a ventilating gas supply. A second embodiment includes tubes of equal length in concentric relationship, the cuff being on the outer tube. In the second embodiment, the inner tube is distensible so that, when relaxed, maximum air flow volume is available. The inner tube expands to permit passage of an NG tube.

REFERENCES:
patent: 3087493 (1963-04-01), Schessow
patent: 3683908 (1972-08-01), Michael et al.
patent: 3874377 (1975-04-01), Davidson
patent: 4090518 (1978-05-01), Elam
patent: 4155365 (1979-03-01), Boslau
patent: 4231365 (1980-11-01), Scarberry
patent: 4334534 (1982-06-01), Ozaki
patent: 4351328 (1982-09-01), Bodai
An Unusual Complication of Esophageal Obturator Airway (EOA), Berkebile et al., Anesthesiology 57:414-415, 1982.

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