Apparatus and method for analysis of expired breath

Details Apparatus and method for analysis of expired breath Apparatus and method for analysis of expired breath

1990-05-01

1991-08-27

Kamm, William E.

Surgery

Truss

Pad

A61B 5097

Patent

active

050425013

ABSTRACT:
Apparatus and method for providing breath for introduction to a measuring device such as a mass spectrometer. The apparatus includes a mouthpiece for interfacing a subject with the apparatus; a tube for carrying exhaled breath from the subject to the inlet of a mixing chamber; a mixing chamber having an inlet, sample outlet and exit tube, that provides a residence time for the exhaled breath sufficient to mix the breath and provide an adequate sample to the measuring device; and heating apparatus for maintaining the apparatus above a temperature where condensation of vapor occurs.

REFERENCES:
patent: 4485822 (1984-12-01), O'Conner et al.
patent: 4850371 (1989-07-01), Broadhurst et al.

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