Patent ID: 7013898

Claim:
An apparatus with nasal pressure sensing means for automatically controlling and conserving the delivery of oxygen to a patient comprising: an oxygen supply; two delivery ports connected to two lumen cannulas with one lumen cannula adapted to be fitted within a right nasal passage of a patient and the other lumen cannula adapted to be fitted within a left nasal passage of a patient; an oxygen conserver controller connected to a power supply means, the oxygen supply and the two delivery ports having first and second pressure sensors adapted for sensing an inhalation pressure separately from both the right and left nasal passages, and comparing means for detecting the difference in the pressure level between the nasal passages of the patient and means for providing a control signal as to the level of the difference in the inhalation pressure in the nasal passages, and means for detecting and using the control signal to alter the delivery of oxygen from the oxygen supply to at least one of the nasal passages of the patient.