System and method for adjusting slow wave detection criteria

Patent metadata

Field	Value
Publication number	US-10549067-B2
Application number	US-201515533558-A
Country	US
Kind code	B2
Filing date	Dec 11, 2015
Priority date	Dec 11, 2014
Publication date	Feb 4, 2020
Grant date	Feb 4, 2020

Abstract

The present disclosure pertains to a system configured to a system configured to detect slow waves based on adjusted slow wave detection criteria and time delivery of the sensory stimulation to correspond to slow waves detected based on the adjusted criteria. The system is configured to adjust slow wave detection criteria to enhance detection of slow waves in a subject. Slow wave detection using adjustable slow wave detection criteria produces more stimulation relative to prior art systems because more individual stimuli are provided if more slow waves are detected. In some embodiments, the system includes one or more of a sensory stimulator, a sensor, a processor, electronic storage, a user interface, and/or other components.

First claim

What is claimed is:

1. A system configured to adjust criteria for detecting slow waves in a subject and deliver sensory stimuli with a timing that corresponds to the detected slow waves, the system comprising:
one or more sensory stimulators configured to provide the sensory stimuli to the subject during a sleep session;
one or more sensors configured to generate output signals conveying information related to brain activity of the subject; and
one or more physical computer processors configured by computer readable instructions to:
obtain criteria for detecting whether the slow waves are present in the subject;
determine that the subject is in slow wave sleep by detecting a first slow wave based on the output signals and the obtained criteria;
adjust the obtained criteria to enhance detection of subsequent slow waves in the subject;
detect a second slow wave based on the output signals and the adjusted criteria, wherein the second slow wave immediately follows the first slow wave during an individual sleep cycle of the subject; and
control the one or more sensory stimulators to deliver the sensory stimuli with a timing that corresponds to detection of the first slow wave and detection of the second slow wave.

2. The system of claim 1 , wherein the one or more physical computer processors are further configured to cause the one or more sensory stimulators to deliver time-out stimulation responsive to a time-out time after detection of the first slow wave and/or the second slow wave elapsing.

3. The system of claim 1 , wherein the one or more physical computer processors are further configured to adjust the criteria based on one or more of predetermined threshold levels for an electroencephalogram (EEG) signal, a sleep cycle of the subject, delta activity root mean square (RMS), or an amplitude of one or more previously detected slow waves.

4. A method for adjusting criteria for detecting slow waves in a subject with an adjustment system, the adjustment system comprising one or more sensory stimulators, one or more sensors, and one or more physical computer processors, the method comprising:
generating, with the one or more sensors, output signals conveying information related to brain activity of the subject;
obtaining, with the one or more physical computer processors, criteria for detecting whether the slow waves are present in the subject;
determining, with the one or more physical computer processors, that the subject is in slow wave sleep by detecting a first slow wave based on the output signals and the obtained criteria;
adjusting, with the one or more physical computer processors, the obtained criteria to enhance detection of subsequent slow waves in the subject;
detecting, with the one or more physical computer processors, a second slow wave based on the output signals and the adjusted criteria, wherein the second slow wave immediately follows the first slow wave during an individual sleep cycle of the subject; and
controlling, with the one or more physical computer processors, the one or more sensory stimulators to deliver the sensory stimuli with a timing that corresponds to detection of the first slow wave and detection of the second slow wave.

5. The method of claim 4 , further comprising causing, with the one or more physical computer processors, the one or more sensory stimulators to deliver time-out stimulation responsive to a time-out time after detection of the first slow wave and/or the second slow wave elapsing.

6. The method of claim 4 , further comprising adjusting the criteria based on one or more of predetermined threshold levels for an electroencephalogram (EEG) signal, a sleep cycle of the subject, delta activity root mean square (RMS), or an amplitude of one or more previously detected slow waves.

7. A system configured to adjust criteria for detecting slow waves in a subject and deliver sensory stimuli with a timing that corresponds to the detected slow waves, the system comprising:
means for providing sensory stimuli to the subject during a sleep session;
means for generating output signals conveying information related to brain activity of the subject;
means for obtaining criteria for detecting whether the slow waves are present in the subject;
means for determining that the subject is in slow wave sleep by detecting a first slow wave based on the output signals and the obtained criteria;
means for adjusting the obtained criteria to enhance detection of subsequent slow waves in the subject;
means for detecting a second slow wave based on the output signals and the adjusted criteria, wherein the second slow wave immediately follows the first slow wave during an individual sleep cycle of the subject; and
means for controlling the means for providing sensory stimuli to deliver the sensory stimuli with a timing that corresponds to detection of the first slow wave and detection of the second slow wave.

8. The system of claim 7 , further comprising means for causing the means for providing sensory stimuli to deliver time-out stimulation responsive to a time-out time after detection of the first slow wave and/or the second slow wave elapsing.

9. The system of claim 7 , wherein the criteria are adjusted based on one or more of predetermined threshold levels for an electroencephalogram (EEG) signal, a sleep cycle of the subject, delta activity root mean square (RMS), or an amplitude of one or more previously detected slow waves.

Assignees

• Koninklijke Philips Nv

Inventors

• Garcia Molina Gary Nelson
• Mahadevan Anandi
• Salazar Jesse
• Vissapragada Venkata Satya Surya Subrahmanya Sreeram
• Gerthoffer John

Classifications

• A61M2021/0055

  with electric or electro-magnetic fields · CPC title

• A61M2230/42

  Rate · CPC title

• A61M2021/0044

  by the sight sense · CPC title

• A61M2205/582

  by tactile feedback · CPC title

• A61M2230/63

  Motion, e.g. physical activity · CPC title