DEVICES AND METHODS FOR MONITORING PHYSIOLOGICAL INFORMATION RELATING TO SLEEP WITH AN IMPLANTABLE DEVICE
First Claim
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1. A method of detecting a sleep state or sleep stage by analyzing electrical signals from a patient'"'"'s brain with an implantable device, said method comprising:
- sensing electrical signals on a plurality of sensing channels;
selecting a first sensing channel of the plurality of sensing channels to apply to a first detection channel, the first detection channel configured to determine whether at least one analysis of the electrical signals sensed on the first sensing channel results in an affirmative outcome;
selecting a second sensing channel of the plurality of sensing channels to apply to a second detection channel, the second detection channel configured to determine whether at least one analysis of the electrical signals sensed on the second sensing channel results in an affirmative outcome; and
comparing the result of the at least one analysis of the first detection channel and the result of the at least one analysis of the second detection channel to determine whether, according to a predetermined logic operation, the implantable device should recognize a sleep state or sleep stage as having been detected.
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Abstract
Described here are implantable devices and methods for monitoring physiological information relating to sleep. The implantable devices are generally designed to include at least one sensor for sensing physiological information, a processor for processing the physiological information using low computational power to detect a sleep stage, and a battery. The detected sleep stage information may then be used to indicate sleep quality, identify or monitor a medical condition, or guide treatment thereof.
7 Citations
20 Claims
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1. A method of detecting a sleep state or sleep stage by analyzing electrical signals from a patient'"'"'s brain with an implantable device, said method comprising:
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sensing electrical signals on a plurality of sensing channels; selecting a first sensing channel of the plurality of sensing channels to apply to a first detection channel, the first detection channel configured to determine whether at least one analysis of the electrical signals sensed on the first sensing channel results in an affirmative outcome; selecting a second sensing channel of the plurality of sensing channels to apply to a second detection channel, the second detection channel configured to determine whether at least one analysis of the electrical signals sensed on the second sensing channel results in an affirmative outcome; and comparing the result of the at least one analysis of the first detection channel and the result of the at least one analysis of the second detection channel to determine whether, according to a predetermined logic operation, the implantable device should recognize a sleep state or sleep stage as having been detected. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An active implantable medical device for detecting a sleep state or sleep stage, said device comprising:
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a plurality of sensing channel configured to sense electrical signals from a patient'"'"'s brain; a plurality of detection channels configured to analyze the received electrical signals; a controller configured to; select a first sensing channel of the plurality of sensing channels to apply to a first detection channel, the first detection channel configured to determine whether at least one analysis of the electrical signals sensed on the first sensing channel results in an affirmative outcome; select a second sensing channel of the plurality of sensing channels to apply to a second detection channel, the second detection channel configured to determine whether at least one analysis of the electrical signals sensed on the second sensing channel results in an affirmative outcome; and event detector logic configured to compare the result of the at least one analysis of the first detection channel and the result of the at least one analysis of the second detection channel to determine whether, according to a predetermined logic operation, the implantable device should recognize a sleep state or sleep stage as having been detected. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification