System and method for applying continuous positive airway pressure
OwnerLawrence Lynninventor
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Abstract
The disclosed embodiments relate to a system and method for titration of airway pressure in the treatment of hypoventilation. An exemplary method comprises examining both a signal indicative of ventilation of a patient and a signal indicative of oxygen saturation of the patient to determine a condition of hypoventilation, and applying a pressure to the nasal passage of the patient if the condition of hypoventilation is identified.
Claims41
A method for titration of airway pressure in the treatment of hypoventilation, comprising:
- examining both a signal indicative of ventilation of a patient and a signal indicative of oxygen saturation of the patient to determine a condition of hypoventilation;
- and
- applying a pressure to the nasal passage of the patient if the condition of hypoventilation is identified.
A system for titration of airway pressure in the treatment of hypoventilation, comprising:
- a processor that is adapted to examine both a signal indicative of ventilation of a patient and a signal indicative of oxygen saturation of the patient to determine a condition of hypoventilation;
- and
- a pressure device that is adapted to apply a pressure to the nasal passage of the patient if the condition of hypoventilation is identified.
A method for titration of airway pressure in the treatment of hypoventilation, comprising:
- detecting a change in a signal indicative of a fall in ventilation;
- detecting a change in a signal indicative of a fall in oxygen saturation corresponding to the fall in ventilation;
- and
- applying a pressure to the nasal passage based on the detecting of both the fall in ventilation and the fall in oxygen saturation.
A noninvasive ventilator, comprising:
- a pulse oximeter;
- an airflow detector;
- and
- an airflow generator that is adapted to respond to an output of the pulse oximeter in combination with an output of the airflow detector.
A method for titration of airway pressure and oxygen in the treatment of hypoventilation, comprising:
- searching first data for a change indicative of a rise in ventilation;
- searching second data for a change indicative of a fall in oxygen saturation corresponding to the rise in ventilation;
- and
- applying oxygen to a patient if both the rise in ventilation and the fall in oxygen saturation are detected.
A method for titration of airway pressure in the treatment of sleep disordered breathing, comprising:
- defining a learning time interval;
- applying, during the learning time interval, an algorithm for adjusting therapeutic pressure applied through a nasal passage of a patient in response to at least one signal generated by the patient;
- recording at least one output corresponding to an effect of the algorithm;
- examining the output for a pattern of a plurality of apneas, a pattern of a plurality of hypopneas, or a pattern of a combination of at least one apnea and at least one hypopnea that persisted despite the application of the algorithm;
- and
- adjusting the algorithm if the pattern of the plurality of apneas, the pattern of the plurality of hypopneas, or the pattern of the combination of at least one apnea and at least one hypopnea that persisted despite the application of the algorithm is detected.
Dependencies are inferred from the claim text.