# US 11,298,073 B1 · Device and method for detection and treatment of bruxism

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- Number: US 11,298,073 B1
- Document ID: US11298073B1
- Status: Granted
- Kind: B1
- Application number: 17/401,619
- Filed: 2021-08-13
- Granted: 2022-04-12
- Earliest claimed: 2021-08-13
- Applicants: Delta Neuro Inc.
- Inventors: Payam Fazel; Ahmad Iranban; Niloufar Gheidi; Elmira Kiani
- Web page: https://patentgrep.com/patent/US11298073B1

## CPC

- A61B 5/4557: {Evaluating bruxism}
- A61B 5/002: {Monitoring the patient using a local or closed circuit, e.g. in a room or building (A61B5/0017 takes precedence)}
- A61B 5/228: {of masticatory organs, e.g. detecting dental force}
- A61B 5/369: Electroencephalography [EEG]
- A61B 5/389: Electromyography [EMG]
- A61B 5/4812: {Detecting sleep stages or cycles}
- A61B 5/4833: {Assessment of subject's compliance to treatment}
- A61B 5/486: {Biofeedback (using electroencephalography [EEG] A61B5/375)}
- A61B 5/6803: {Head-worn items, e.g. helmets, masks, headphones or goggles}
- A61B 5/7405: {using sound}
- A61B 5/742: {using visual displays (displays for heart-related electrical signals, e.g. ECG, A61B5/339)}
- A61B 5/7455: {characterised by tactile indication, e.g. vibration or electrical stimulation}
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)

## Abstract

The present invention is method and a device to detect and treat Bruxism through a combination of muscle and brain sensors detecting sensors and providing a set of biofeedbacks to stop grinding while preventing habituation to biofeedbacks. The frequency and phase of the rhythmic grinding pattern of a Bruxer is identified and a biofeedback with the same frequency but different phase is applied on the user to stop grinding without waking the user from a sleep.

## Claims

### Claim 1

A device to detect and treat bruxism, comprising;
a) a set of muscle sensors to measure a series of muscle signals;
b) a set of brain sensors to measure a series of brain signals;
c) a biofeedback system to provide a set of biofeedback signals to a bruxer to stop a teeth grinding, the biofeedback system comprising:
i) a visual feedback system in the form of LED lights;
ii) an auditory feedback system in the form of sound through a set of speakers, and
iii) a vibration feedback system through a set of vibrators,
d) a microprocessor configured to
i) identify a rhythmic grinding pattern in the series of brain signals and determine a frequency, a phase and an average amplitude of the rhythmic grinding pattern, and activate the biofeedback system with a biofeedback frequency that is the same as the frequency of the rhythmic grinding pattern but have a biofeedback phase shift (time delay) with respect to the phase of the rhythmic grinding pattern,
ii) randomly change the set of biofeedback signals until the series of brain signals is not rhythmic, and
iii) change the biofeedback system between the visual, the auditory, and the vibration feedback systems in a cycle of sleep if a temporalis muscle activity or the series of brain signals show a habituation pattern.

### Claim 2 (depends on 1)

The device of claim 1, wherein the set of muscle sensors comprise of any one of electromyogram (EMG) sensors, a piezo disc type muscle sensors, piezo film muscle sensor, or a pressure resistive material that is woven into the mask/headband, and the set of brain sensors comprise of electroencephalography EEG sensors.

### Claim 3 (depends on 2)

The device of claim 2, wherein the EEG sensor is a fabric, or a stainless steel passive, dry biosensor.

### Claim 4 (depends on 1)

The device of claim 1, wherein the device is a wearable sleep mask or a headband.

### Claim 5 (depends on 1)

The device of claim 1, wherein the LED lights are configured to change in a flashing pattern, a light brightness, and a light color, the auditory feedback is configured to change in a sound volume, a type of sound, and a left or a right ear sounds, and the vibration feedback is configured to change in a vibration frequency and a vibration amplitude.

### Claim 6 (depends on 1)

The device of claim 1, further comprising one or more transmitter and/or receiver, one or more data storage unit capable of recording bruxism event data and non-bruxism event data, and a power control unit to supply power to the device.

### Claim 7 (depends on 6)

The device of claim 6, wherein the power control unit comprising a replaceable, a rechargeable or a disposable battery, or a non-battery power supply converting vibrations or radio waves into power.

### Claim 8 (depends on 6)

The device of claim 6, wherein the receiver is a smartphone, a tablet or a desktop.

### Claim 9 (depends on 6)

The device of claim 6, further having a BLUETOOTH capable microprocessor that links to the receiver through ANDROID and IOS applications.

### Claim 10 (depends on 6)

The device of claim 6, wherein the device is configured to:
a) collect data and transmit to the receiver, wherein long term data is collected on an ongoing basis for the user to monitor the process of user's grinding;
b) provide a nightly, weekly and monthly history of user's grinding;
c) provide an assessment of users improvement and suggest a treatment program based on user's history,
whereby the user monitors and tracks the treatment procedure and can customize user's treatment program.

### Claim 11 (depends on 6)

The device of claim 6, having a Wi-Fi communication to transfer data between the device and the receiver.