KR101566791B1 - Eletrical stimulation device - Google Patents

Eletrical stimulation device Download PDF

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Publication number
KR101566791B1
KR101566791B1 KR1020150054419A KR20150054419A KR101566791B1 KR 101566791 B1 KR101566791 B1 KR 101566791B1 KR 1020150054419 A KR1020150054419 A KR 1020150054419A KR 20150054419 A KR20150054419 A KR 20150054419A KR 101566791 B1 KR101566791 B1 KR 101566791B1
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South Korea
Prior art keywords
electrode
polarity
user
head
patch layer
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KR1020150054419A
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Korean (ko)
Inventor
이기원
고천주
장종민
김병직
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(주)와이브레인
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/18—Applying electric currents by contact electrodes
    • A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
    • A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
    • A61N1/36014—External stimulators, e.g. with patch electrodes
    • A61N1/36025—External stimulators, e.g. with patch electrodes for treating a mental or cerebral condition
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/02—Details
    • A61N1/04—Electrodes
    • A61N1/0404—Electrodes for external use
    • A61N1/0408—Use-related aspects
    • A61N1/0456—Specially adapted for transcutaneous electrical nerve stimulation [TENS]
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/02—Details
    • A61N1/08—Arrangements or circuits for monitoring, protecting, controlling or indicating

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • General Health & Medical Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Biomedical Technology (AREA)
  • Engineering & Computer Science (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Neurology (AREA)
  • Biophysics (AREA)
  • Social Psychology (AREA)
  • Psychology (AREA)
  • Psychiatry (AREA)
  • Hospice & Palliative Care (AREA)
  • Developmental Disabilities (AREA)
  • Child & Adolescent Psychology (AREA)
  • Electrotherapy Devices (AREA)

Abstract

An electrical stimulation device is provided. An electric stimulation apparatus according to an embodiment of the present invention includes a first electrode contacting a first portion of a user's head to apply an electric current to the head of the user, a second electrode contacting a second portion different from the first portion of the user's head, A second electrode for applying a current to the head of the user; a first electrode for controlling the first electrode to have a first polarity and the second electrode to have a second polarity different from the first polarity at a first point of time; A control section for controlling the first electrode to have the second polarity and the second electrode to have the first polarity at a second time point different from the first time point and a control section for controlling the polarity state of the first electrode and the second electrode And includes an indicating unit.

Description

[0001] ELECTRICAL STORMING DEVICE [0002]

The present invention relates to an electric stimulation apparatus, and more particularly, to an electric stimulation apparatus for applying an electric stimulus to a user's head.

Brain electrical stimulation using transcranial direct current stimulation (tDCS) is known to be effective in improving cognitive ability and treating mental disorders such as depression and ADHD (Attention Deficit Hyperactivity Disorder).

Thus, if the brain electrical stimulation technique is available in everyday life, brain function can be improved, and continuous mental illness treatment may be possible by activating or inhibiting neural connections.

Published Patent Publication No. 10-2010-0040683, Apr. 20, 2010

A conventional tDCS device includes a plurality of electrodes, each of which includes a patch layer tangent to the skin of the user's head and an electrode layer for transmitting current to the patch layer. The patch layer includes an electrolyte for current conduction, which may cause an oxidation-reduction reaction at the interface between the patch layer and the electrode layer. This oxidation-reduction reaction gradually acidifies or basicizes the patch layer, and when the pH index of the patch layer is out of the critical range, the user can burn the skin of the hair in contact with the patch layer.

An object of the present invention is to provide an electric stimulation apparatus capable of preventing a user from burning the skin of the head when using the electric stimulation apparatus.

According to an aspect of the present invention, there is provided an electric stimulation apparatus including a first electrode contacting a first portion of a user's head to apply a current to the head of the user, A second electrode for applying a current to the head of the user in contact with the second portion, a second electrode for controlling the first electrode to have a first polarity and the second electrode to have a second polarity different from the first polarity, A control section for controlling the first electrode to have the second polarity and the second electrode to have the first polarity at a second time point different from the first time point according to a predetermined standard, And an indicator indicating the polarity state of the two electrodes.

In some embodiments, the indicator may include at least one light emitting element that flashes or exhibits a different color depending on the polarity state of the first electrode and the second electrode.

In some embodiments, the indicator may include at least one speaker that outputs a predetermined sound according to the polarity state of the first electrode and the second electrode.

In some embodiments, the indicator may display at least one of a predetermined character, a number, a graphic, and an image according to a polarity state of the first electrode and the second electrode.

In some embodiments, the electric stimulation apparatus may further include a frame on which the first electrode and the second electrode are disposed on a first surface, and the indicator is disposed on a second surface different from the first surface have.

In some embodiments, the polarity state of the first electrode and the second electrode may correspond to the wear direction of the electric stimulation apparatus.

In some embodiments, the first electrode or the second electrode includes a patch layer in contact with the skin of the user's head, and at least one electrode layer formed on the patch layer and delivering current to the patch layer can do.

In addition, the patch layer includes an electrolyte, and a water decomposition reaction may occur on an interface between the patch layer and the at least one electrode layer when a current is delivered to the patch layer.

In addition, the patch layer may be a sponge or a hydrogel containing an electrolyte.

In some embodiments, the predetermined criterion may include at least one of a reference time, a reference pH index, and a reference use frequency.

According to the present invention as described above, the following various effects are obtained.

First, since the polarity of a plurality of electrodes is periodically changed according to a predetermined standard, the pH index of the patch layer can be maintained within the safe range, and it is possible to prevent the user from burning the skin of the head in contact with the patch layer have.

Second, since it indicates the polarity states of the plurality of electrodes of the electric stimulation apparatus, the user can easily know the direction of wearing the electric stimulation apparatus corresponding to the polarity state of the plurality of electrodes from the instruction, can do.

1 is a diagram showing a schematic configuration of an electric stimulation apparatus according to an embodiment of the present invention.
2 is a diagram showing a schematic appearance of an electric stimulation apparatus according to an embodiment of the present invention.
3 is a view for explaining the configuration of the electrode portion.
4 is a view for explaining the water decomposition reaction on the interface between the patch layer and the electrode layer.
5 is a diagram for explaining the periodic polarity change of the first electrode and the second electrode.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and the manner of achieving them, will be apparent from and elucidated with reference to the embodiments described hereinafter in conjunction with the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. To fully disclose the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

Unless defined otherwise, all terms (including technical and scientific terms) used herein may be used in a sense commonly understood by one of ordinary skill in the art to which this invention belongs. Also, commonly used predefined terms are not ideally or excessively interpreted unless explicitly defined otherwise.

The terminology used herein is for the purpose of illustrating embodiments and is not intended to be limiting of the present invention. In the present specification, the singular form includes plural forms unless otherwise specified in the specification. The terms " comprises "and / or" comprising "used in the specification do not exclude the presence or addition of one or more other elements in addition to the stated element.

Hereinafter, an electric stimulation apparatus according to embodiments of the present invention will be described with reference to the accompanying drawings.

The term " electrical stimulation " referred to hereinafter includes transcranial direct current stimulation (tDCS), transcranial alternating current stimulation (tACS), transcranial random-noise stimulation ), And the like, but the present invention is not limited thereto.

FIG. 1 is a view showing a schematic configuration of an electric stimulation apparatus according to an embodiment of the present invention, and FIG. 2 is a diagram showing a schematic appearance of an electric stimulation apparatus according to an embodiment of the present invention.

Referring to FIG. 1, an electric stimulation apparatus 100 according to an embodiment of the present invention includes an electrode unit 10, an instruction unit 20, and a control unit 30.

The electrode unit 10 contacts the head of the user (subject) and applies current to the user's head. The user can wear the electric stimulation apparatus 100 on the head or attach it to the head, whereby the electrode unit 10 can be brought into contact with the user's head. For example, the electrode portion 10 may be adjacent to the forehead of the user's head, but the present invention is not limited thereto. According to the embodiment, the electrode unit 10 can detect the EEG signal from the user's head. The electrode unit 10 may simultaneously apply an electric current to the head of the user while detecting the EEG signal from the user's head.

The electrode unit 10 may be a plurality of (the first electrode 10a and the second electrode 10b). The electrical stimulation apparatus 100 may detect an EEG signal in a plurality of portions (locations or regions) of the user's head, or apply a current to a plurality of portions of the user's head. For example, one electrode portion 10 (the first electrode 10a) can be adjacent to the left side of the user's head, and the other electrode portion 10 (second electrode 10b) As shown in Fig. The plurality of electrode units 10 can be independently controlled.

Each of the electrode portions 10 has a polarity as described later. Each of the electrode portions 10 can be controlled to have a different polarity. However, the present invention is not limited thereto. Depending on the number of electrode units 10, some electrode units 10 may have the same polarity.

The indicating unit 20 indicates the polarity state of the plurality of electrode units 10. Here, the " instruction " may include a series of operations such as directly specifying or displaying the polarity state of the plurality of electrode units 10, indirectly indicating or signaling the polarity state of the plurality of electrode units 10.

For example, the indicating unit 20 may include a light emitting device that may be blinking or displaying a different color depending on the polarity of the first electrode 10a and the second electrode 10b. The number of the light emitting devices may be one or more depending on the number of the electrode units 10.

As another example, the instruction unit 20 may include a speaker for outputting a predetermined sound according to the polarity state of the first electrode 10a and the second electrode 10b. The loudspeaker may be used to output guidance information related to the wearing of the electric stimulation apparatus 100.

As another example, the instruction unit 20 may include a display unit that displays predetermined characters, numbers, graphics, images, and the like according to the polarity states of the first electrode 10a and the second electrode 10b.

The polarity state of the plurality of electrode units 10 may correspond to the wearing direction of the electric stimulation apparatus 100. This point may be particularly important when the shape of the electric stimulation apparatus 100 is formed symmetrically (up or down or right and left). Depending on the embodiment, there may be cases where the flow of current on the user's head must be fixed in a certain direction, in order to perform some function of the electric stimulation apparatus 100 or to enhance the effectiveness of some functions. In this case, since the polarity state of the plurality of electrode units 10 is related to the current flow, it is necessary for the electric stimulation apparatus 100 to guide the wear direction of the electric stimulation apparatus 100 to the user. Accordingly, the user can grasp the wearing direction of the electric stimulation apparatus 100 from the instruction of the instruction section 20. [

The control unit 30 controls the function and operation of the electric stimulation apparatus 100 as a whole. The control unit 30 controls the electrode unit 10 to apply a current to the user's head. The control unit 30 can control the instruction unit 20 to indicate the polarity state of the electrode unit 10 to the user. The control unit 30 may include a processor, a microprocessor, a microcontroller, a central processing unit (CPU), a micro processing unit (MPU), and a microcontroller unit (MCU) .

On the other hand, the components shown in Fig. 1 are not essential to the electric stimulation apparatus 100 according to the embodiment of the present invention, so that the electric stimulation apparatus 100 may include more components, As shown in FIG.

Referring to FIG. 2, an electric stimulation apparatus 100 according to an embodiment of the present invention includes a frame 70, an electrode unit 10, and an instruction unit 20.

The electrode portion 10 may be disposed on the first surface 70a of the frame 70 and the indicating portion 20 may be disposed on the second surface 70b of the frame 70. [ The first surface 70a represents the inner surface of the frame 70 and the second surface 70b may represent the outer surface of the frame 70. [ When the user wears or attaches the electric stimulation apparatus 100 to the user's head, the first surface comes into contact with the user's head.

As described above, a plurality of the electrode units 10 (the first electrode 10a and the second electrode 10b) may be formed. The plurality of electrode units 10 include a patch layer 12 and an electrode layer 11, respectively.

The patch layer 12 is a layer directly contacting the skin of the user's head. The patch layer 12 may be composed of a single layer. The patch layer 12 applies the current delivered from the electrode layer 11 to the user's head. To this end, the patch layer 12 may comprise an electrolyte for delivering current. For example, the patch layer 12 may be composed of a sponge or a hydrogel containing an electrolyte, but the present invention is not limited thereto. The electrolyte may contain chloride ions (Cl < - >) common to the skin of the user. The patch layer 12 may be formed of a material having a relatively high impedance.

An electrode layer (11) is formed on the patch layer (12). The electrode layer 11 does not contact the skin of the user's head. The electrode layer 11 transmits a current to the patch layer 12 as described above so that electrical stimulation is applied to the user through the patch layer 12. For example, the electrode layer 11 may be formed of a conductive carbon sheet or conductive silicon, but the present invention is not limited thereto.

As shown in Fig. 3, the electrode portion 10 may include a plurality of segments, and a plurality of segments may be formed on the same circuit board 15 so as to be spaced apart from each other. Each segment may include a patch layer 12 and an electrode layer 11. The number of segments, the shape, the interval between the segments, and the like can be variously modified according to the embodiment. The plurality of segments may be independently controlled by the control unit 30. Alternatively, some of the segments may be controlled by the control unit 30 as a group. 3, the electrode unit 10 may not be divided into a plurality of segments.

The instruction unit 20 indicates the polarity state of the plurality of electrode units 10 as described above. The arrangement position of the indicating portion 20 on the second surface can be variously modified according to the embodiment.

On the other hand, the overall shape of the electric stimulation apparatus 100 is not limited to the embodiment shown in Fig.

4 is a view for explaining the water decomposition reaction on the interface between the patch layer and the electrode layer.

4, when a current is transferred from the electrode layer 11 to the patch layer 12, a water decomposition reaction occurs on the interface between the patch layer 12 and the electrode layer 11. The patch layer 12 may further include water (used as a solvent) in addition to the electrolyte. The water in the patch layer 12 reacts with electrons provided from the electrode layer 11 to form hydroxide ions (OH-) and hydrogen It can be decomposed into molecules. Alternatively, water in the patch layer 12 may lose electrons and decompose into hydrogen ions (H +) and oxygen molecules. Accordingly, when the electrode portion 10 functions as a cathode, the pH index of the patch layer 12 of the electrode portion 10 can be gradually increased by the hydroxide ions, and similarly, 10 function as the anode, the pH index of the patch layer 12 of the electrode unit 10 can be gradually lowered by the hydrogen ions. When the change in the pH index of the patch layer 12 is out of the critical range, the skin of the head in contact with the patch layer 12 by the user can be burnt.

5 is a diagram for explaining the periodic polarity change of the first electrode and the second electrode.

5, when the first electrode 10a has a first polarity (for example, a cathode) at a first time point t1 and the second electrode 10b has a second polarity (for example, , Anode (+)). Thereafter, when the first electrode 10a has the second polarity at the second time point t2 at which the predetermined reference time tR elapses from the first point of time t1 and the second electrode 10b has the first polarity Respectively. The reference time can be set in hours, minutes and seconds. The hydroxide ions generated at the first electrode 10a or the hydrogen ions generated at the second electrode 10b by the water decomposition reaction at the first time point are returned to the water by the reverse reaction at the second time point. The polarities of the plurality of electrodes can continuously change with the reference time period.

According to the embodiment, the polarities of the plurality of electrodes may vary according to the reference pH index and the reference use frequency. For this purpose, the electric stimulation apparatus 100 may further include a pH sensor (not shown) for measuring the pH index of the patch layer 12. Such a pH sensor may be disposed on the electrode portion 10. [ Whether or not the reference use frequency is exceeded can be judged on the basis of the one-time use time or the number of on-off times.

This makes it possible to keep the pH index of the patch layer 12 within the safe range and consequently to prevent the user from burning the skin of the head in contact with the patch layer 12. [

In this specification, the electric stimulation apparatus 100 for applying electric stimulation to a user's head has been described as an embodiment. However, the technical features of the present invention include an electric stimulation apparatus 100 for applying electric stimulation to other body parts of the user, As shown in FIG.

The methods described in connection with the embodiments of the present invention may be implemented with software modules executed by a processor. The software modules may be stored in any form of computer readable storage medium such as a random access memory (RAM), read-only memory (ROM), EPROM, EEPROM, flash memory, registers, hard disk, removable disk, CD- Or may reside on a recording medium.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, You will understand. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive.

10:
11: Electrode layer
12: patch layer
20: Indicator
30:
70: frame
100: Electric stimulator

Claims (10)

A first electrode contacting the first portion of the user's head to apply a current to the user's head;
A second electrode contacting a second portion of the head of the user other than the first portion and applying a current to the head of the user;
Controlling the first electrode to have a first polarity and the second electrode to have a second polarity different from the first polarity at a first time point, and to control the second electrode at a second time point different from the first time point according to a predetermined standard, A control unit for controlling the first electrode to have the second polarity and the second electrode to have the first polarity; And
And an indicator indicating a polarity state of the first electrode and the second electrode,
Wherein the predetermined criterion comprises at least one of a reference time, a reference pH index, and a reference use frequency. The method according to claim 1,
Wherein the indicating unit comprises at least one light emitting element which is flickering or exhibits a different light color according to a polarity state of the first electrode and the second electrode. The method according to claim 1,
Wherein the indicating section includes at least one speaker for outputting a predetermined sound according to a polarity state of the first electrode and the second electrode. The method according to claim 1,
Wherein the instruction unit displays at least one of a predetermined character, a number, a figure and an image according to a polarity state of the first electrode and the second electrode. The method according to claim 1,
Further comprising a frame in which the first electrode and the second electrode are disposed on a first surface and the indicator is disposed on a second surface different from the first surface. The method according to claim 1,
Wherein a polarity state of the first electrode and the second electrode corresponds to a wearing direction of the electric stimulation apparatus. The method according to claim 1,
The first electrode or the second electrode may include a first electrode,
A patch layer contacting the skin of the user's head,
And at least one electrode layer formed on the patch layer and delivering a current to the patch layer. 8. The method of claim 7,
Wherein the patch layer comprises an electrolyte,
Wherein a water decomposition reaction occurs at an interface between the patch layer and the at least one electrode layer when a current is delivered to the patch layer. 8. The method of claim 7,
Wherein the patch layer is a sponge or hydrogel comprising an electrolyte. delete
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20220116595A (en) * 2021-02-15 2022-08-23 뉴로엔(주) Non-invasive brain stimulation healthcare device with improved electrode adhesion and wearability

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3129187B2 (en) * 1996-04-05 2001-01-29 住友金属工業株式会社 Single crystal manufacturing apparatus and single crystal manufacturing method
KR200427527Y1 (en) * 2006-07-12 2006-09-27 정판수 Low frequency pulse stimulator
JP2009530064A (en) * 2006-03-22 2009-08-27 エモーティブ システムズ ピーティーワイ リミテッド Electrode and electrode headset

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3129187B2 (en) * 1996-04-05 2001-01-29 住友金属工業株式会社 Single crystal manufacturing apparatus and single crystal manufacturing method
JP2009530064A (en) * 2006-03-22 2009-08-27 エモーティブ システムズ ピーティーワイ リミテッド Electrode and electrode headset
KR200427527Y1 (en) * 2006-07-12 2006-09-27 정판수 Low frequency pulse stimulator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20220116595A (en) * 2021-02-15 2022-08-23 뉴로엔(주) Non-invasive brain stimulation healthcare device with improved electrode adhesion and wearability
KR102516618B1 (en) * 2021-02-15 2023-04-03 뉴로엔(주) Non-invasive brain stimulation healthcare device with improved electrode adhesion and wearability

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