Surgery – Respiratory method or device – Face mask covering a breathing passage
Patent
1994-07-20
1995-03-28
Asher, Kimberly L.
Surgery
Respiratory method or device
Face mask covering a breathing passage
12820621, 12820525, A62B 1802
Patent
active
054007810
ABSTRACT:
An oxygen mask made of clear flexible material, for example, polyvinyl chloride, has a gas pocket just inside two holes in it, below the nose and in front of the mouth, the holes adapted to lead via tubing, one to an oxygen source and the other to a respiratory gas or carbon dioxide monitor, the rest of the mask being gas-proof except for permissible small openings at about ear and cheek level. The gas pocket is formed by the mask extending outward in front of the face, particularly the nose and mouth, and having the holes in the floor thereof, tubes and connectors being adapted to fit through the holes and go to an oxygen source and a carbon dioxide monitor.
REFERENCES:
patent: 1926027 (1933-09-01), Biggs
patent: 2248477 (1941-07-01), Lombard
patent: 2625155 (1953-01-01), Engelder
patent: 2795223 (1957-06-01), Stampe
patent: 3395701 (1968-08-01), Bartlett, Jr.
patent: 4201205 (1980-05-01), Bartholomew
patent: 4258710 (1981-03-01), Reber
patent: 4328797 (1982-05-01), Rollins, III et al.
patent: 5005571 (1991-04-01), Dietz
patent: 5046491 (1991-09-01), Derrick
Asher Kimberly L.
Lanquist, Jr. Edward D.
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