NASAL PRESSURE SENSOR OXYGEN THERAPY DEVICE
First Claim
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1. 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.
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Abstract
Method and apparatus for supplying respiratory oxygen to a patient where the oxygen flow is monitored so as to control and conserve oxygen in response to the pressure in the nasal passages of the patient.
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Citations
21 Claims
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1. An apparatus with nasal pressure sensing means for automatically controlling and conserving the delivery of oxygen to a patient comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for delivering and controlling oxygen to a patient from an oxygen supply which effectively conserves said oxygen supply, comprising the steps of:
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a) providing a supply of oxygen;
b) providing pressure sensoring means for separately measuring the inhalation pressures in nasal passages of a patient;
c) measuring the difference in value in the inhalation pressure in each nasal passage of the patient and providing said measured value as a control signal; and
d) adjusting a deliverable amount of oxygen to at least one nasal passage of the patient in response to the control signal of step c). - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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20. An apparatus with nasal pressure sensing means for automatically controlling and conserving the delivery of oxygen to a patient comprising:
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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 [[and]] having at least one sensor adapted for sensing the difference in the obstruction between the right and left nasal passages and comparing means for detecting the difference in the obstruction level between the nasal passages of the patient and means for providing a control signal as to the level of the difference 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. - View Dependent Claims (21)
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Specification