Patent ID: 8096297
Filing Date: 2012-01-17
Classification: A61B,A61M,G01N,Y02A

Abstract:
1. An apparatus configured to facilitate rebreathing by a subject, comprising: an airway conduit configured to communication with a respiratory system of a patient; a volume-adjustable deadspace in communication with the airway conduit, the volume adjustable deadspace configured to be adjusted to one of more than two fixed volumes from which the subject may rebreath, wherein the volume adjustable deadspace is adjusted by selectively including in the volume adjustable deadspace a selected number of shunts from a plurality of shunts positioned in communication between the expiratory conduit and the inspiratory conduit in dependence of a size or a lung capacity of the patient, wherein a selectively actuatable valve is associated with each shunt of the plurality of shunts.