System And Method For Discrimination Of Central And Obstructive Disordered Breathing Events
First Claim
1. A method of operating an implantable device to classify disordered breathing events of a patient, comprising:
- sensing respiration and generating a respiration signal indicating patient respiration cycles;
sensing chest wall motion and generating a motion signal indicating chest wall motion associated with inspiratory effort;
detecting disordered breathing based on the respiration signal;
time correlating the motion signal with the respiration signal; and
classifying the disordered breathing event as a central disordered breathing event in response to the signal remaining below a motion threshold during a time period in which the respiration signal remains below an inspiration threshold.
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Abstract
Disordered breathing events may be classified as central, obstructive or a combination of central an obstructive in origin based on patient motion associated with respiratory effort. Central disordered breathing is associated with disrupted respiration with reduced respiratory effort. Obstructive disordered breathing is associated with disrupted respiration accompanied by respiratory effort. A disordered breathing classification system includes a disordered breathing detector and a respiratory effort motion sensor. Components of the disordered breathing classification system may be fully or partially implantable.
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Citations
3 Claims
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1. A method of operating an implantable device to classify disordered breathing events of a patient, comprising:
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sensing respiration and generating a respiration signal indicating patient respiration cycles; sensing chest wall motion and generating a motion signal indicating chest wall motion associated with inspiratory effort; detecting disordered breathing based on the respiration signal; time correlating the motion signal with the respiration signal; and classifying the disordered breathing event as a central disordered breathing event in response to the signal remaining below a motion threshold during a time period in which the respiration signal remains below an inspiration threshold. - View Dependent Claims (2, 3)
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Specification