Devices and methods for monitoring physiological information relating to sleep with an implantable device

摘要

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.

主权项

1. A method of detecting a sleep state or sleep stage with an active implantable medical device, said method comprising:
determining first and second parameters of each of a plurality of half waves resulting from sensed physiological information; for each of the plurality of half waves, determining that the half wave is a qualified half wave when the first parameter of the half wave satisfies a first criterion and the second parameter of the same half wave satisfies a second criterion, wherein each of the first criterion and the second criterion are defined by a respective minimum parameter and a respective maximum parameter; counting a number of qualified half waves that occur during a time window; and detecting a particular sleep state or stage when a measure derived from the number satisfies a third criterion indicative of the particular sleep state or stage.