Patent ID: 7377901
Filing Date: 2008-05-27
Classification: A61B

Abstract:
1. An apparatus for collecting airway gases, comprising: a mouthpiece through which a user in use exhales to deliver a gas flow therethrough, wherein the mouthpiece is configured to provide a resistance to exhalation which is such as to cause closure of the oropharyngeal velum of the user on exhalation therethrough; a first nosepiece which is fluidly connected to the mouthpiece for fitting to one nostril of the user; a second nosepiece for fitting to the other nostril of the user; a collection device which is fluidly connected to the second nosepiece for collecting airway gases as delivered from the second nosepiece; and a scrubber which is fluidly connected to the mouthpiece for removing one or more gases from the gas flow as delivered to the first nosepiece.