Patent ID: 7244235
Filing Date: 2007-07-17
Classification: A61B,A61M

Abstract:
1. A breathing assistance system, comprising: a blower that provides a gas flow and can provide a continuous positive airway pressure; a respiratory interface; a conduit connected between said blower and said respiratory interface; and a valve disposed along said conduit between a first conduit portion a second conduit portion, said valve including an aperture formed in said conduit between said blower and said respiratory interface, and a valve member that pivots between: (a) a first, fully open position wherein the valve member partially occludes said conduit and allows gas flow through said aperture, the fully open position of said valve member providing a gas flow path directing said gas flow provided by said blower to pass from said first conduit portion into said second conduit portion to purge expired respiratory gases located in said second conduit portion through said aperture, and (b) a second position blocking said aperture so that continuous positive airway pressure is provided to a patient.