Patent ID: 6306098
Filing Date: 2001-10-23
Classification: A61B,A61M,G01N,Y02A

Abstract:
Apparatus for non-invasive determination of cardiac output, comprising:an airway conduit adapted for communication with a patient's respiratory system;an inspiratory conduit interconnected to said airway conduit;an expiratory conduit interconnected to said airway conduit;a volume-adjustable deadspace comprising a plurality of shunt lines positioned in fluid communication between said expiratory conduit and said inspiratory conduit, each said shunt line including a selectively actuatable shunt valve providing movement of exhaled gas between said inspiratory conduit and said expiratory conduit; anddetection apparatus positioned in proximity to said airway conduit for detecting a change in concentration of at least one gas and in gas flow relating to said patient's respiratory system.