IP Library › Granted Patent US 12,453,856
Granted Patent B2
US 12,453,856 · App. 17/861,646 · Granted Oct 28, 2025

External auditory canal therapy device

Inventor: Christopher R. Brown (Greensburg, IN)
Assignee: Neuraxis, Inc.
A61N1/36036A61N1/0456A61N5/0603A61N2005/0605A61N2005/0647A61N2005/0662
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Quick Facts
Patent No.
US 12,453,856
App. No.
17/861,646
Granted
Oct 28, 2025
Kind
B2
Abstract

An external auditory canal therapy device may include a housing inserted into an external auditory canal of a human ear, at least one electrically conductive electrode coupled to the housing and one or both of at least one irradiation source and at least one speaker coupled to the housing. An electrical circuit carried by the housing may control the at least one electrically conductive electrode to provide electrically stimulation through the dermis to at least one of an arterial branch and a peripheral nerve branch of at least one cranial nerve, and may control one or both of the at least one irradiation source to irradiate the at least one of the arterial branch and the peripheral nerve branch of the at least one cranial nerve through the dermis and the at least one speaker to produce acoustic waves directed toward a tympanic membrane of the ear.

Claims (54)

1. An external auditory canal therapy device, comprising:

a housing including a first portion configured to be inserted into an external auditory canal of a human ear and a second portion,

a plurality of electrically conductive electrodes coupled to the housing such that, with the housing inserted into the external auditory canal, at least a portion of each of the plurality of electrically conductive electrodes non-percutaneously contacts at least a portion of dermis of the external auditory canal beneath which at least one of an arterial branch and a peripheral nerve branch of at least one cranial nerve is located, the plurality of electrically conductive electrodes disposed radially about the housing in spaced apart relation to one another around the housing and circumferentially aligned with one another,

at least one irradiation source coupled to the housing such that, with the housing inserted into the external auditory canal, at least a portion of a radiation emitting surface of the at least one irradiation source faces at least another portion of dermis of the external auditory canal beneath which the at least one of the arterial branch and the peripheral nerve branch of the at least one cranial nerve is located,

at least one speaker carried by the housing such that, with the housing inserted into the external auditory canal, acoustic waves exiting the at least one speaker pass through at least one opening defined through the housing and move through the external auditory canal toward a tympanic membrane of the human ear, and

an electrical circuit carried by the housing, the electrical circuit including at least a first circuit component configured to control the plurality of electrically conductive electrodes to electrically stimulate the at least one of the arterial branch and the peripheral nerve branch of the at least one cranial nerve through the at least a portion of dermis of the external auditory canal, and at least a second circuit component configured to control the at least one irradiation source to irradiate the at least one of the arterial branch and the peripheral nerve branch of the at least one cranial nerve through the at least another portion of dermis of the external auditory canal,

wherein the at least one irradiation source includes light sources arrayed circumferentially on the first portion of the housing, thereby positioning each of the light sources opposite to, and facing, the at least one of the arterial branch and peripheral nerve branch of the at least one cranial nerve.

2. The external auditory canal therapy device of claim 1 , wherein the first portion of the housing is coupled to or integral with the second portion of the housing, the plurality of electrically conductive electrodes, the at least one irradiation source, and the at least one speaker coupled to the first portion of the housing, the second portion of the housing containing the electrical circuit.

3. An external auditory canal therapy system, comprising:

the external auditory canal therapy device of claim 1 , wherein the electrical circuit of the external auditory canal therapy device includes a wireless communication circuit or a communication circuit for conducting hard-wire communications, and

a mobile communication device including wireless communication circuitry configured to communicate wirelessly with the wireless communication circuit of the external auditory canal therapy device or including communication circuitry configured to communicate with the communication circuit of the external auditory canal therapy device via a hard-wire connection therebetween, the mobile communication device further comprising a processor programmed to control operation of the plurality of electrically conductive electrodes and operation of the at least one irradiation source and the at least one speaker of the external auditory canal therapy device by communicating operating instructions to the electrical circuit of the external auditory canal therapy device wirelessly or via hard-wire connection.

4. An external auditory canal therapy apparatus, comprising two of the external auditory canal therapy devices of claim 1 , wherein the housing of one of the external auditory canal therapy devices is to be inserted into the external auditory canal of one ear of a human and the housing of the other of the external auditory canal therapy devices is to be inserted into the external auditory canal of an opposite ear of the human.

5. An external auditory canal therapy system, comprising:

the two external auditory canal therapy devices of claim 4 , wherein the electrical circuit of each of the two external auditory canal therapy devices includes a wireless communication circuit or a communication circuit for conducting hard-wire communications, and

a mobile communication device including wireless communication circuitry configured to communicate wirelessly with the wireless communication circuit of each of the two external auditory canal therapy devices or including communication circuitry configured to communicate with the communication circuit of each of the two external auditory canal therapy devices via a hard-wire connection therebetween, the mobile communication device further comprising a processor programmed to control operation of the plurality of electrically conductive electrodes, the at least one irradiation source, and the at least one speaker of each of the two external auditory canal therapy devices by communicating operating instructions to the electrical circuit of each of the two external auditory canal therapy devices wirelessly or via hard-wire connection.

6. An external auditory canal therapy device, comprising:

a housing including a first portion configured to be inserted into an external auditory canal of a human ear and a second portion,

at least one irradiation source coupled to the housing such that, with the housing inserted into the external auditory canal, at least a portion of a radiation emitting surface thereof faces at least a portion of dermis of the external auditory canal beneath which at least one of an arterial branch and a peripheral nerve branch of at least one cranial nerve is located, wherein the at least the portion of the radiation emitting surface of the at least one irradiation source directs radiation radially outward ly from the housing,

at least one electrically conductive electrode coupled to the housing such that, with the housing inserted into the external auditory canal, at least a portion of the at least one electrically conductive electrode non-percutaneously contacts at least another portion of dermis of the external auditory canal beneath which at least one of the arterial branch and the peripheral nerve branch of the at least one cranial nerve is located, and

an electrical circuit carried by the housing and electrically connected to the at least one irradiation source and to the at least one electrically conductive electrode, the electrical circuit including at least a first circuit component configured to control the at least one irradiation source to irradiate the at least one of the arterial branch and the peripheral nerve branch of the at least one cranial nerve through the at least a portion of dermis of the external auditory canal, and at least a second circuit component configured to control the at least one electrically conductive electrode to electrically stimulate the at least one of the arterial branch and the peripheral nerve branch of the at least one cranial nerve through the at least another portion of dermis of the external auditory canal,

wherein the at least one irradiation source includes light sources arrayed circumferentially on the first portion of the housing, thereby positioning each of the light sources opposite to, and facing, the at least one of the arterial branch and peripheral nerve branch of the at least one cranial nerve.

7. The external auditory canal therapy device of claim 6 , further comprising means for controlling the at least the first circuit component and the at least the second circuit component to alternatingly cause the at least one irradiation source to produce radiation while the at least one electrically conductive electrode is not electrically stimulating the at least one of the arterial branch and the peripheral nerve branch of the at least one cranial nerve through the at least another portion of dermis of the external auditory canal, and to cause the at least one electrically conductive electrode to electrically stimulate the at least one of the arterial branch and the peripheral nerve branch of the at least one cranial nerve through the at least another portion of dermis of the external auditory canal while the at least one irradiation source is not producing radiation.

8. The external auditory canal therapy device of claim 6 , further comprising means for controlling the at least the first circuit component and the at least the second circuit component to simultaneously cause the at least one irradiation source to produce radiation and the at least one electrically conductive electrode to electrically stimulate the at least one of the arterial branch and the peripheral nerve branch of the at least one cranial nerve through the at least another portion of dermis of the external auditory canal.

9. The external auditory canal therapy device of claim 6 , wherein the at least one irradiation source is configured to produce electromagnetic radiation in at least one frequency or range of frequencies of visible light.

10. The external auditory canal therapy device of claim 6 , wherein at least a portion of the housing has a curved outer periphery,

and wherein the light sources and the at least one electrically conductive electrode include two or more light sources and two or more electrically conductive electrodes disposed radially about the curved outer periphery.

11. An external auditory canal therapy system, comprising:

the external auditory canal therapy device of claim 6 , wherein the electrical circuit of the external auditory canal therapy device includes a wireless communication circuit or a communication circuit for conducting hard-wire communications, and

a mobile communication device including wireless communication circuitry configured to communicate wirelessly with the wireless communication circuit of the external auditory canal therapy device or including communication circuitry configured to communicate with the communication circuit of the external auditory canal therapy device via a hard-wire connection therebetween, the mobile communication device further comprising a processor programmed to control operation of the at least one irradiation source and the at least one electrically conductive electrode of the external auditory canal therapy device by communicating operating instructions to the electrical circuit of the external auditory canal therapy device wirelessly or via hard-wire connection.

12. An external auditory canal therapy apparatus, comprising two of the external auditory canal therapy devices of claim 6 , wherein the housing of one of the external auditory canal therapy devices is to be inserted into the external auditory canal of one ear of a human and the housing of the other of the external auditory canal therapy devices is to be inserted into the external auditory canal of an opposite ear of the human.

13. An external auditory canal therapy device, comprising:

a housing including a first portion configured to be inserted into an external auditory canal of a human ear and a second portion, the first portion of the housing defining at least one opening,

a plurality of electrically conductive electrodes coupled to the housing such that, with the housing inserted into the external auditory canal, at least a portion of each of the plurality of electrically conductive electrodes non-percutaneously contacts at least a portion of dermis of the external auditory canal beneath which at least one of an arterial branch and a peripheral nerve branch of at least one cranial nerve is located, the plurality of electrically conductive electrodes disposed radially about the housing in spaced apart relation to one another around the housing and circumferentially aligned with one another,

at least one speaker carried by the housing such that, with the housing inserted into the external auditory canal, acoustic waves exiting the at least one speaker pass through the at least one opening of the housing and move through the external auditory canal toward a tympanic membrane of the human ear,

at least one irradiation source coupled to the housing such that, with the housing inserted into the external auditory canal, at least a portion of a radiation emitting surface of the at least one irradiation source faces at least another portion of dermis of the external auditory canal beneath which the at least one of the arterial branch and the peripheral nerve branch of the at least one cranial nerve is located, and

an electrical circuit carried by the housing and electrically connected to the plurality of electrically conductive electrodes and to the at least one speaker, the electrical circuit including at least a first circuit component configured to control the plurality of electrically conductive electrodes to electrically stimulate the at least one of the arterial branch and the peripheral nerve branch of the at least one cranial nerve through the at least a portion of dermis of the external auditory canal, and at least a second circuit component configured to control the at least one speaker to produce acoustic waves,

wherein the at least one irradiation source includes light sources arrayed circumferentially on the first portion of the housing, thereby positioning each of the light sources opposite to, and facing, the at least one of the arterial branch and peripheral nerve branch of the at least one cranial nerve.

14. The external auditory canal therapy device of claim 13 , further comprising means for controlling the at least the first circuit component and the at least the second circuit component to alternatingly cause at least one of the plurality of electrically conductive electrodes to electrically stimulate the at least one of the arterial branch and the peripheral nerve branch of the at least one cranial nerve through the at least a portion of dermis of the external auditory canal while the at least one speaker is not producing acoustic waves, and to cause the at least one speaker to produce acoustic waves while the plurality of electrically conductive electrodes is not electrically stimulating the at least one of the arterial branch and the peripheral nerve branch of the at least one cranial nerve through the at least a portion of dermis of the external auditory canal.

15. The external auditory canal therapy device of claim 13 , further comprising means for controlling the at least the first circuit component and the at least the second circuit component to simultaneously cause at least one of the plurality of electrically conductive electrodes to electrically stimulate the at least one of the arterial branch and the peripheral nerve branch of the at least one cranial nerve through the at least a portion of dermis of the external auditory canal and the at least one speaker to produce acoustic waves.

16. The external auditory canal therapy device of claim 13 , wherein the acoustic waves include at least one of single frequency tone signals, multiple frequency tone signals, music signals, noise signals and beat signals.

17. An external auditory canal therapy system, comprising:

the external auditory canal therapy device of claim 13 , wherein the electrical circuit of the external auditory canal therapy device includes a wireless communication circuit or a communication circuit for conducting hard-wire communications, and

a mobile communication device including wireless communication circuitry configured to communicate wirelessly with the wireless communication circuit of the external auditory canal therapy device or including communication circuitry configured to communicate with the communication circuit of the external auditory canal therapy device via a hard-wire connection therebetween, the mobile communication device further comprising a processor programmed to control operation of the plurality of electrically conductive electrodes and the at least one speaker of the external auditory canal therapy device by communicating operating instructions to the electrical circuit of the external auditory canal therapy device wirelessly or via hard-wire connection.

18. The external auditory canal therapy system of claim 17 , wherein the mobile communication device has stored therein, or is configured to access externally, one or more audio signal files,

and wherein the operating instructions communicated to the external auditory canal therapy device by the mobile communication device include at least one of the one or more audio signal files,

and wherein the at least a second circuit component is configured to supply audio signals from the at least one of the one or more audio signal files to the at least one speaker to cause the at least one speaker to produce the acoustic waves in the form of at least one of single frequency tone signals, multiple frequency tone signals, music signals, noise signals and beat signals.

19. An external auditory canal therapy apparatus, comprising two of the external auditory canal therapy devices of claim 13 , wherein the housing of one of the external auditory canal therapy devices is to be inserted into the external auditory canal of one ear of a human and the housing of the other of the external auditory canal therapy devices is to be inserted into the external auditory canal of an opposite ear of the human.

20. An external auditory canal therapy device, comprising:

a housing including a first portion configured to be inserted into an external auditory canal of a human ear and a second portion,

at least one irradiation source coupled to the housing such that, with the housing inserted into the external auditory canal, at least a portion of a radiation emitting surface thereof faces at least a portion of dermis of the external auditory canal beneath which at least one of an arterial branch and a peripheral nerve branch of at least one cranial nerve is located, wherein the at least the portion of the radiation emitting surface of the at least one irradiation source directs radiation radially outwardly from the housing,

at least one electrically conductive electrode coupled to the housing such that, with the housing inserted into the external auditory canal, at least a portion of the at least one electrically conductive electrode non-percutaneously contacts at least another portion of dermis of the external auditory canal beneath which at least one of the arterial branch and the peripheral nerve branch of the at least one cranial nerve is located,

at least one speaker carried by the housing such that, with the housing inserted into the external auditory canal, acoustic waves exiting the at least one speaker pass axially through at least one opening of the housing and move through the external auditory canal toward a tympanic membrane of the human ear, and

an electrical circuit carried by the housing and electrically connected to the at least one irradiation source, the at least one electrically conductive electrode and the at least one speaker, the electrical circuit including at least a first circuit component configured to control the at least one irradiation source to irradiate the at least one of the arterial branch and the peripheral nerve branch of the at least one cranial nerve through the at least a portion of dermis of the external auditory canal, at least a second circuit component configured to control the at least one electrically conductive electrode to electrically stimulate the at least one of the arterial branch and the peripheral nerve branch of the at least one cranial nerve through the at least another portion of dermis of the external auditory canal, and at least a third circuit component configured to control the at least one speaker to produce acoustic waves,

wherein the at least one irradiation source includes light sources arrayed circumferentially on the first portion of the housing, thereby positioning each of the light sources opposite to, and facing, the at least one of the arterial branch and peripheral nerve branch of the at least one cranial nerve.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 22, 2026
From: NEURAXIS, INC.
To: BROWN, CHRISTOPHER R.
Reel/Frame 073543/0654 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 19, 2022
From: BROWN, CHRISTOPHER R.
To: NEURAXIS INC.
Reel/Frame 060545/0898 →
Continuity (4)
Continuation In Part 17589082 · Jan 31, 2022
Continuation In Part 17617364
Provisional Application 62866763 · Jun 26, 2019
Related Publication 20220347474A1 · Nov 3, 2022
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