Abstract: A method of monitoring a respiratory stream can be provided by monitoring color change of a color change material to determine a CO2 level of the respiratory stream in contact with the color change material by emitting visible light onto the color change material. Related devices, systems, and compositions are also disclosed.
Type:
Grant
Filed:
March 12, 2013
Date of Patent:
August 27, 2019
Assignee:
RESPIRION, LLC
Inventors:
Eugene W. Moretti, Robert Lavin Wood, Allan Bruce Shang, Steven S. Yauch