APNEA DETECTION USING A CAPNOGRAPH
First Claim
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1. A method for diagnosis, comprising:
- receiving a signal indicative of a partial pressure of CO2 in air expired by a patient during sleep;
processing the signal so as to detect a breathing-related event from a group of events consisting of apneas and hypopneas, and to classify the event as a central event or an obstructive event; and
generating a record of an occurrence and classification of the event.
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Abstract
A method for diagnosis includes receiving a signal indicative of a partial pressure of CO2 in air expired by a patient during sleep. The signal is processed so as to detect a breathing-related event from a group of events consisting of apneas and hypopneas, and to classify the event as a central event or an obstructive event.
116 Citations
33 Claims
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1. A method for diagnosis, comprising:
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receiving a signal indicative of a partial pressure of CO2 in air expired by a patient during sleep; processing the signal so as to detect a breathing-related event from a group of events consisting of apneas and hypopneas, and to classify the event as a central event or an obstructive event; and generating a record of an occurrence and classification of the event. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. Apparatus for diagnosis, comprising:
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a sensor, which is configured to be coupled to a body of a patient during sleep and to output a signal indicative of a partial pressure of CO2 in air expired by a patient; and a processor, which is coupled to process the signal so as to detect a breathing-related event from a group of events consisting of apneas and hypopneas, and to classify the event as a central event or an obstructive event. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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- 23. A computer-software product, comprising a computer-readable medium in which program instructions are stored, which instructions, when read by a computer, cause the computer to receive a signal indicative of a partial pressure of CO2 in air expired by a patient during sleep, and to process the signal so as to detect a breathing-related event from a group of events consisting of apneas and hypopneas, and to classify the event as a central event or an obstructive event.
Specification