| abstract |
A fluid delivery system provides fluid, such as supplementary oxygen, to a patient in response to inhalation. The fluid delivery system includes a valve assembly that is triggered by sensing nasal flow. The system includes a sensor configured to detect flow either directly through the nose and to detect any “flow leakage” through a patient's nasal cavity while mouth breathing. A method for conserved delivery of fluid to a patient that includes sensing such nasal flow is also provided. |