Nasal cannula structure

Details Nasal cannula structure Nasal cannula structure

1981-09-08

1983-12-27

Howell, Kyle L.

Surgery

Respiratory method or device

Respiratory gas supply means enters nasal passage

12820717, 604 94, A61M 1508

Patent

active

044224567

ABSTRACT:
A nasal cannula structure capable of being adjusted so as to fit comfortably relative to the nose of a user can be constructed so as to utilize an elongated tubular conduit held by a suitable support so that a portion of the conduit extends beneath and adjacent to the nostrils of the nose of the user. Two separate, spaced holes are provided in this portion of the conduit. Each of these holes is covered by a sleeve which fits closely around the exterior of the conduit in such a manner there is no gas leakage between the exterior of the conduit and the interiors of the sleeves and in such a manner that the positions of the sleeves relative to the conduit can be changed. These sleeves carry small tubes which are in communication with the holes in the conduit and which also extend into the nostrils of a user.

REFERENCES:
patent: 2763263 (1956-09-01), Ellman
patent: 4156426 (1979-05-01), Gold
patent: 4221217 (1980-09-01), Amezcua

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