System and method of monitoring respiratory events
First Claim
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1. A method of monitoring a patient, the method comprising:
- monitoring flow of a flow of gas generated by respiration of a patient;
detecting occurrence of a respiratory event entry based on peak values of flow during inspirations by such a patient, the detection of the occurrence of the respiratory event entry being made responsive to a decline in the peak values of flow across a first set of successive inspirations;
detecting occurrence of a respiratory event exit based on peak values of flow during inspirations by such a patient subsequent to the first set of successive inspirations, the detection of the occurrence of the respiratory event exit being made responsive to an increase in the peak values of flow across a second set of successive inspirations; and
identifying a respiratory event responsive to the detection of the respiratory event entry being followed by the detection of the respiratory event exit.
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Abstract
A system and method of monitoring a patient, that in one embodiment, comprises determining a flow of gas generated by respiration of the patient, identifying a respiratory event entry and a respiratory event exit based on the flow of gas generated by respiration of the patient, and identifying a respiratory event when the identification of the respiratory event entry is followed by the identification of respiratory event exit.
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Citations
17 Claims
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1. A method of monitoring a patient, the method comprising:
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monitoring flow of a flow of gas generated by respiration of a patient; detecting occurrence of a respiratory event entry based on peak values of flow during inspirations by such a patient, the detection of the occurrence of the respiratory event entry being made responsive to a decline in the peak values of flow across a first set of successive inspirations; detecting occurrence of a respiratory event exit based on peak values of flow during inspirations by such a patient subsequent to the first set of successive inspirations, the detection of the occurrence of the respiratory event exit being made responsive to an increase in the peak values of flow across a second set of successive inspirations; and identifying a respiratory event responsive to the detection of the respiratory event entry being followed by the detection of the respiratory event exit. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method of monitoring a patient, the method comprising:
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monitoring flow of gas generated by respiration of the patient; detecting a respiratory event based on peak values of flow during a series of inspirations that includes a first set of successive inspirations and a second set of successive inspirations, the detection of the occurrence of the respiratory event being made responsive to first a decline in the peak values of flow across the first set of successive inspirations in the series of inspirations and then an increase in the peak values of flow across the second set of successive inspirations in the series of inspirations; and adjusting one or more aspects of treatment received by the patient based on the identification of the respiratory event. - View Dependent Claims (9)
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10. A patient treatment system that delivers a pressurized flow of breathable gas to an airway of a patient, the system comprising:
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a sensor monitor that monitors flow of a flow of gas generated by respiration of a patient; an event entry module adapted to detect occurrences of respiratory event entries based on peak values of the flow monitored by the sensor, the event entry module being configured to detect an occurrence of a respiratory event entry responsive to a decline in the peak values of flow across a first set of successive inspirations; an event exit module adapted to detect occurrences of respiratory event exits that are different from the entry events based on peak values of the flow monitored by the sensor, the detection of an occurrence of a respiratory event exit being made responsive to an increase in the peak values of flow across a second set of successive inspirations, the second set of successive inspirations corresponding to a period in time that is subsequent to a period of time corresponding to the first set of successive inspirations; and a respiratory event module adapted to identify a respiratory event responsive to a detection of a respiratory event entry being followed by a detection of a respiratory event exit. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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Specification