APPARATUS, SYSTEM AND METHOD FOR CHRONIC DISEASE MONITORING
First Claim
1. A system for monitoring a subject, the system comprising:
- a sensor configured to output a signal comprising a measured respiratory parameter of the subject;
an analyzer configured to receive the signal and to store, in a memory, at least a plurality of respiratory features derived from the respiratory parameter,wherein the analyzer is configured to selectively combine the plurality of respiratory features to determine an output that provides a health assessment of the subject.
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Accused Products
Abstract
An apparatus, system, and method for monitoring a person suffering from a chronic medical condition predicts and assesses physiological changes which could affect the care of that subject. Examples of such chronic diseases include (but are not limited to) heart failure, chronic obstructive pulmonary disease, asthma, and diabetes. Monitoring includes measurements of respiratory movements, which can then be analyzed for evidence of changes in respiratory rate, or for events such as hypoponeas, apneas and periodic breathing. Monitoring may be augmented by the measurement of nocturnal heart rate in conjunction with respiratory monitoring. Additional physiological measurements can also be taken such as subjective symptom data, blood pressure, blood oxygen levels, and various molecular markers. Embodiments for detection of respiratory patterns and heart rate are disclosed, together with exemplar implementations of decision processes based on these measurements.
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Citations
23 Claims
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1. A system for monitoring a subject, the system comprising:
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a sensor configured to output a signal comprising a measured respiratory parameter of the subject; an analyzer configured to receive the signal and to store, in a memory, at least a plurality of respiratory features derived from the respiratory parameter, wherein the analyzer is configured to selectively combine the plurality of respiratory features to determine an output that provides a health assessment of the subject. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A computer-implemented method for monitoring a subject, the method comprising:
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measuring a respiratory parameter of the subject using a sensor; generating, with a processor, a plurality of respiratory features derived from the respiratory parameter, combining the plurality of respiratory features to calculate an output that provides a health assessment of the subject. - View Dependent Claims (20, 21, 22)
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23. A computer-implemented method for assessing changes in the health of a subject, the method comprising:
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calculating for a first time period, one or more parameters selected from the group consisting of a respiratory rate of a subject;
a incidence of apneas and hypoponeas, and an amplitude and period of periodic breathing;calculating, for a second time period after the first time period, said one or more parameters selected from said group; comparing said calculated one or more parameters from the first time period with said calculated one or more parameters from the second time period to obtain a comparison result; and determining a change in health status based on the comparison result.
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Specification