Airway adapter for monitoring constituents of a patient's breath

Details Airway adapter for monitoring constituents of a patient's breath Airway adapter for monitoring constituents of a patient's breath

1991-12-13

1993-05-25

Howell, Kyle L.

Surgery

Truss

Pad

73 233, 73 2337, A61B 508

Patent

active

052131092

ABSTRACT:
An apparatus for use in measuring the chemical constituents of a patient's breath, such as CO.sub.2, O.sub.2 or the like in the form of an airway adapter having opposed circular ends for installation in a patient's ventilation tubing, the adapter having an intermediate portion, a window formed in the intermediate portion of the type, such as of sapphire, to permit light of the required frequency to pass therethrough, and a mirror within the adapter immediate portion opposite of the window and arranged so that at least a portion of the patient's ventilation gases pass between the mirror and the window so that light may be directed through the window and received back therefrom as reflected from the mirror to permit an analysis of the absorption of light by the patient's breath for determination of the constituents of the patient's breath.

REFERENCES:
patent: 4403514 (1983-09-01), Osborn
patent: 4549553 (1985-10-01), Hochberg
patent: 4668635 (1987-05-01), Forster
patent: 5607492 (1991-11-01), Yeldeman et al.

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