Patent ID: 6789542
Filing Date: 2004-09-14
Classification: A61M

Abstract:
A device mountable on an airway tube, the device comprising:a housing mountable on a distal end of an airway tube having a central port in fluid communication with the tube and a distal port for fluid communication with atmospheric air, the distal port having an inlet for receiving the air and an outlet for delivering the air to the central port; and a valve supported within the housing and in fluid communication with the ports, the valve movable to an open position during inhalation to permit air to flow from the distal port into the central port to deliver the air to a user's respiratory system, the valve further being movable from the open position to a closed position during exhalation to substantially prevent air flow from exiting the user's respiratory system through the distal port such that a substantial portion of the exhalation air can flow past the user's vocal cords.