Surgery – Respiratory method or device – Face mask covering a breathing passage
Patent
1996-03-14
1999-01-12
Lewis, Aaron J.
Surgery
Respiratory method or device
Face mask covering a breathing passage
12820628, 12820612, 12820422, 12820423, 12820525, 12820528, A62B 1802, A62B 1808, A61M 1600
Patent
active
058574603
ABSTRACT:
A gas sensing mask and system which senses and indicates the presence or absence of a selected respired gas. The mask includes a non-porous housing that is sized to seat over the nose and mouth of a subject. The mask includes a fluid aperture that is coupled to a fluid source and a sensor mounting aperture formed in an intermediate portion of the housing. A gas sensor, which senses one or more selected gases respired by the subject, is directly mounted within the sensor mounting aperture. The gas sensor includes a calorimetric indicator which visually indicates the presence or absence of the respired gas.
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Beth Israel Deaconess Medical Center Inc.
Lewis Aaron J.
Nguyen Dinh X.
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