Sleep detection using an adjustable threshold

摘要

Devices and methods for sleep detection involve the use of an adjustable threshold for detecting sleep onset and termination. A method for detecting sleep includes adjusting a sleep threshold associated with a first sleep-related signal using a second sleep-related signal. The first sleep-related signal is compared to the adjusted threshold and sleep is detected based on the comparison. The sleep-related signals may be derived from implantable or external sensors. Additional sleep-related signals may be used to confirm the sleep condition. A sleep detector device implementing a sleep detection method may be a component of an implantable pulse generator such as a pacemaker or defibrillator.

主权项

1. A method of detecting sleep, comprising:
sensing a plurality of sleep-related signals; storing a relationship that relates sleep detection to the plurality of sleep-related signals, wherein the relationship evaluates a second one of the plurality of the sleep-related signals as a function of a first one of the plurality of the sleep-related signals; detecting sleep based on the sensed plurality of sleep-related signals in conjunction with the stored relationship; and providing an output signal indicative of an outcome of the sleep detection; wherein at least one of storing, detecting and providing is performed at least in part implantably and effectuated at least in part by a processor.