KR101648195B1 - Audio-type TENS therapy device and method - Google Patents

Audio-type TENS therapy device and method Download PDF

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Publication number
KR101648195B1
KR101648195B1 KR1020150069690A KR20150069690A KR101648195B1 KR 101648195 B1 KR101648195 B1 KR 101648195B1 KR 1020150069690 A KR1020150069690 A KR 1020150069690A KR 20150069690 A KR20150069690 A KR 20150069690A KR 101648195 B1 KR101648195 B1 KR 101648195B1
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South Korea
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tens
signal
audio
frequency
outputting
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KR1020150069690A
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Korean (ko)
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김형준
이상희
허주원
이강일
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김형준
이상희
허주원
이강일
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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

Abstract

The present invention relates to an apparatus and a method for audio-type transcutaneous electrical nerve stimulation (TENS) treatment, capable of performing a treatment in accordance to TENS in our daily lives. The apparatus for audio-type TENS treatment according to the present invention comprises: a decoding unit for decoding input audio data; a digital-analog converter for converting the decoded audio data into an analog signal to output an audio signal; a frequency generator for generating a TENS frequency signal, which is a frequency signal corresponding to TENS; a mixer for mixing the audio signal and the TENS frequency signal to output an audio-TENS mixed signal; and an amplifier for amplifying the audio-TENS mixed signal to output the amplified signal through a speaker.

Description

[0001] The present invention relates to an audio-type TENS therapy device and method,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a TENS therapy technique, and more particularly, to an audio TENS therapy apparatus and method that mixes an audio signal and a TENS frequency signal and provides the result through a speaker.

Electric pain relief therapy is a form of pain therapy that applies electricity internally or externally to a person's body. In general, electrical pain therapy is intended to prevent the transmission of pain signals from the point of pain origin to the brain. One form of electrical pain therapy is known as transcutaneous electrical nerve stimulation (TENS), which treats various forms of pain, or treats it in a manner that is often considered somewhat similar to acupuncture It can provide a comfortable and pleasant response. In general, the human body is being accepted to react well to a variety of predetermined individual frequencies. Thus, devices using TENS are known to achieve this goal by providing percutaneous energy to vibrate the electrodes that are placed over various parts of the human body.

With respect to the use of TENS, there are many clinical reports on various types of pain such as back pain, muscle warts and arthritis pain, sympathetic nerve involvement pain, bladder incontinence, neurogenic pain, visceral pain, postoperative pain,

TENS is an application of electrical stimulation to the surface of the skin, mainly for pain relief. TENS is treated through external surface electrodes with several types of electrical waveforms characterized by frequency, pulse width, and amplitude.

Reducing pain by applying electricity has long been known, but it has received substantial attention since the release of Melzack & Wall's gate control theroy in 1965. The gate control theory provides a scientific basis for pain relief mechanisms. TENS has the advantage that it is non-pharmaceutical, non-invasive, non-addictive, and has little reason to ban.

Conventional TENS therapy uses a relatively high stimulation frequency (e.g., 50-150 Hz) and low current (e.g., 1-2 mA), which is a tolerable value for most users. Alternatively, a lower stimulation frequency (e.g., 1-5 Hz) and a higher current (e.g., 15-80 mA) may be used, which may be better than conventional therapy for some users.

These TENS treatments require equipment that generates current at a certain frequency and electrodes such as conductive pads must be placed on the forehead or the back of the body so that there is a place and time constraint for treatment, And it is limited only in hospitals or nursing homes.

An object of the present invention is to provide an audio TENS therapy apparatus and method that mixes an audio signal and a TENS frequency signal through a speaker so as to enable treatment similar to TENS in daily life.

According to an aspect of the present invention, there is provided an apparatus for treating an audio TENS, comprising: a decoding unit decoding audio data to be input; A digital-to-analog converter for converting the decoded audio data into an analog signal and outputting an audio signal; A frequency generator for generating a TENS frequency signal which is a signal of a frequency corresponding to TENS (Transcutaneous Electrical Nerve Stimulation); A mixer for mixing the audio signal and the TENS frequency signal and outputting an audio-TENS mixed signal; And an amplifier for amplifying the audio-TENS mixed signal and outputting it to a speaker.

The audio TENS treatment apparatus may further include a switch for blocking or transmitting the output from the frequency generator to the mixer according to a user setting.

The audio TENS treatment apparatus may further include a timer for controlling the switch such that the output from the frequency generator to the mixer is interrupted when a predetermined time has elapsed from the user.

The frequency generator may be turned on / off according to user settings.

The audio TENS treatment apparatus may further include a timer for controlling the frequency generator to be turned off when a predetermined time has elapsed from the user.

The input audio data may be received using Bluetooth communication.

The input audio data may be received from any one of an mp3 player, a CD player, a smart phone, a tablet, and a TV using Bluetooth communication.

The frequency of the TENS frequency signal may be between 1 and 150 Hz.

According to an aspect of the present invention, there is provided an audio-type TENS treatment method comprising: decoding input audio data; Converting the decoded audio data into an analog signal and outputting an audio signal; Generating a TENS frequency signal that is a signal of a frequency corresponding to TENS (Transcutaneous Electrical Nerve Stimulation); Mixing the audio signal and the TENS frequency signal to output an audio-TENS mixed signal; And amplifying the audio-TENS mixed signal and outputting the amplified audio-TENS mixed signal to a speaker.

According to another aspect of the present invention, there is provided an apparatus for treating an audio TENS, comprising: an MP3 decoder for decoding MP3 files stored in a memory and outputting digital audio data; A digital-to-analog converter for converting the digital audio data into an analog signal and outputting an audio signal; A frequency generator for generating a TENS frequency signal which is a signal of a frequency corresponding to TENS (Transcutaneous Electrical Nerve Stimulation); A mixer for mixing the audio signal and the TENS frequency signal and outputting an audio-TENS mixed signal; And an amplifier for amplifying the audio-TENS mixed signal and outputting it to a speaker.

According to another aspect of the present invention, there is provided a method of treating an audio-type TENS, the method comprising: decoding MP3 data stored in a memory to output digital audio data; Converting the digital audio data into an analog signal and outputting an audio signal; Generating a TENS frequency signal that is a signal of a frequency corresponding to TENS (Transcutaneous Electrical Nerve Stimulation); Mixing the audio signal and the TENS frequency signal to output an audio-TENS mixed signal; And amplifying the audio-TENS mixed signal and outputting the amplified audio-TENS mixed signal to a speaker.

According to the present invention, since the audio signal and the TENS frequency signal are mixed and provided through the speaker, it is possible to perform treatment according to TENS in daily life.

1 shows a configuration of an audio TENS treatment apparatus according to an embodiment of the present invention.
FIG. 2 shows a flowchart of a method of treating an audio-type TENS according to an embodiment of the present invention.
FIG. 3 shows a configuration of an audio-type TENS treatment apparatus according to another embodiment of the present invention.
FIG. 4 shows a flowchart of a method of treating an audio-type TENS according to another embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. In the following description and the accompanying drawings, substantially the same components are denoted by the same reference numerals, and redundant description will be omitted. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

The present inventor has found that, instead of directly applying the electric stimulus at the frequency corresponding to TENS to the surface of the skin through the electrode, even if the person hears the sound of the corresponding frequency, the comfortable and pleasant reaction similar to the TENS treatment, A similar therapeutic effect can be obtained. Accordingly, the present invention provides an audio-type TENS therapy apparatus and method that mixes an audio signal and a TENS frequency signal so as to enable treatment similar to TENS in daily life, and provides the same through a speaker.

1 shows a configuration of an audio TENS treatment apparatus according to an embodiment of the present invention.

The audio-type TENS therapy apparatus 200 according to the present embodiment is capable of Bluetooth communication and can be connected to the music reproduction apparatus 100 using Bluetooth communication. The music playback apparatus 100 may be, for example, an mp3 player, a CD player, a smart phone, a tablet, a TV, or the like, which has a Bluetooth communication function. The audio-type TENS treatment apparatus 200 can receive audio data from the music reproduction apparatus 100 using Bluetooth communication.

The TENS therapy apparatus 200 includes a Bluetooth communication module 210, a decoding unit 220, a digital-to-analog converter 230, a frequency generator 240, a first amplifier 250, a mixer 260, And a second amplifier 270. The TENS therapy apparatus 200 may be connected to the speaker 300, which may be an earphone or headphone type speaker, or an open type speaker.

The Bluetooth communication module 210 receives audio data from the music reproduction apparatus 100 using Bluetooth communication. For this, the music reproducing apparatus 100 and the TENS treatment apparatus 200 may perform Bluetooth pairing in advance.

The audio data input from the music playback apparatus 100 is generally digital data compressed in a predetermined manner. Accordingly, the decoding unit 220 decodes the compressed audio data input through the Bluetooth communication module 210 and transmits the decoded audio data to the analog-to-digital converter 230.

The analog-to-digital converter 230 converts the digital audio data from the decoding unit 220 into an analog signal and outputs an analog audio signal.

Meanwhile, the frequency generator 240 generates a TENS frequency signal which is a signal of a frequency corresponding to TENS (Transcutaneous Electrical Nerve Stimulation). Here, the frequency corresponding to TENS may be a frequency used in a usual TENS treatment, for example, a frequency between 1 and 150 Hz. The human audible frequency is usually in the range of 16 Hz to 20 kHz, and the TENS frequency may be included in the audible frequency range or outside the audible frequency range. For example, when the frequency of the generated TENS frequency signal is 10 Hz, it falls outside the audible frequency range, and when the frequency of the generated TENS frequency signal is 50 Hz, it is included in the audible frequency range.

The frequency generator 240 may generate a TENS frequency signal using a quartz crystal oscillator, generate a frequency signal using a micom, and generate a TENS frequency signal through an appropriate filter.

Since the TENS frequency signal generated through the frequency generator 240 is typically a signal of a very small size, the first amplifier 250 amplifies the TENS frequency signal to a predetermined level and delivers it to the mixer 260. The level of the TENS frequency signal obtained through the first amplifier 250 is preferably smaller than the level of the audio signal output from the analog-to-digital converter 230. For example, the level of the TENS frequency signal may be about 1/10 of the level of the audio signal.

The mixer 260 mixes the audio signal from the analog-to-digital converter 230 with the TENS frequency signal from the frequency generator 240 and outputs an audio-TENS mixed signal. That is, a mixed signal of the audio signal and the TENS frequency signal is output through the mixer 260.

The second amplifier 270 amplifies the audio-TENS mixed signal from the mixer 260 to a level suitable for the user to listen to and outputs to the speaker 300. Therefore, in the speaker 300, the sound provided by the music reproducing apparatus 100 and the sound corresponding to the TENS frequency are mixed. The amplification level of the second amplifier 270 can be adjusted according to the setting through the user interface 280. [

When the audio TENS therapy apparatus 200 is used for treatment or prevention purposes, the music provided by the music reproduction apparatus 100 may be meditation music, for example. Clinically, the TENS frequency signal is also known to activate endorphins in the human body. Therefore, even if it is not necessarily the object of treatment or prevention, the audio-type TENS therapy apparatus 200 may be applied to the audio of music or broadcasting from the music playback apparatus 100 in daily life, and may be used to induce endorphins in the user have. Although there may be slight differences among people, the frequency at which TENS therapy activates endorphins, especially beta endorphins, is known to be about 70-80 Hz. Thus, for maximum endorphin induction, the frequency of the TENS frequency signal can be 70-80 Hz.

If the frequency of the TENS frequency signal from the frequency generator 240 is between 1 and 15 Hz, this is outside the audible frequency range so that the user can hardly sense the TENS frequency signal being heard. On the other hand, if the frequency of the TENS frequency signal coming out of the frequency generator 240 is between 16 and 150 Hz, this is within the audible frequency range so that the user can hear the TENS frequency signal.

1, the audio-type TENS therapy apparatus 200 further includes a user interface 280, a switch 285, and a timer 290. The first amplifier 250 and the second amplifier 270 are connected to a variable Amplifier.

In the embodiment of the present invention, the audio-type TENS therapy apparatus 200 may output only an audio signal according to a user setting, or may output an audio-TENS mixed signal in which an audio signal and a TENS frequency signal are mixed.

For this purpose, the user interface 280 may provide a button for setting a first mode for outputting only audio signals and a second mode for outputting an audio-and -ensens mixed signal. When the mode is set to the first mode, the frequency generator 240 is turned off and the mixer 260 outputs only the audio signal. When the mode is set to the second mode, the frequency generator 240 is turned on and the mixer 260 mixes the audio- Can be output. Alternatively or in addition, when the first mode is set, the switch 285 is opened to cut off the output from the frequency generator 240 to the mixer 260 so that the mixer 260 outputs only the audio signal, The switch 285 is closed to deliver the output from the frequency generator 240 to the mixer 260 so that the mixer 260 can output the audio-TENS mixed signal.

Also, in the embodiment of the present invention, the audio-type TENS therapy apparatus 200 can mix the TENS frequency signal with the audio signal only for the time set by the user. For example, if the time is set to 30 minutes, 1 hour, etc., the audio-TENS mixed signal mixed with the TENS frequency signal and the audio signal is output during the corresponding time, and thereafter only the audio signal in which the TENS frequency signal is not mixed is output . Of course, the audio output itself may be stopped when the time set by the user is reached.

For this purpose, the user interface 280 may provide input means for setting a time desired by the user. The timer 290 may count the time set by the user. When the frequency generator 240 is turned on, the mixer 260 outputs the audio-TENS mixed signal, and the timer 290 controls the frequency generator 240 to be turned off when the predetermined time has elapsed, Can be output. Alternatively, or alternatively, with the switch 285 closed, the mixer 260 outputs an audio-TENS mixed signal, and the timer 290 controls the switch 285 to open when the set time has elapsed, The mixer 260 can output only the audio signal by cutting off the output from the mixer 260 to the mixer 260. [

Also, in an embodiment of the present invention, the frequency of the TENS frequency signal from the frequency generator 240 may be adjusted according to user settings. For this purpose, the user interface 280 provides input means for adjusting the frequency, and the frequency generator 240 can change the frequency according to the frequency setting of the user interface 280.

You can set the frequency between 1 and 15 Hz if you do not want the TENS frequency signal to be heard, and you can set the frequency between 16 and 150 Hz if you want to hear the TENS frequency signal. Of course, depending on the user, the TENS frequency signal may be heard and the boundary value of the inaudible frequency may be different. Also, for maximum endorphin induction, the user can set the frequency between 70 and 80 Hz.

Also, in an embodiment of the present invention, the magnitude of the TENS frequency signal from the frequency generator 240 may be adjusted according to user settings. To this end, the user interface 280 may provide input means for adjusting the magnitude of the TENS frequency signal. The first amplifier 250 may adjust the amplification level according to the signal size setting of the user interface 280.

The user can adjust the frequency and signal size of the TENS frequency signal suitable for the user through the user interface 280. [ In other words, you can change the frequency and signal size of the TENS frequency signal and choose the frequency and signal size that you feel most comfortable with. In addition, with the help of a specialist, the optimal frequency and signal size can be selected for purposes such as treatment or prevention of disease or disease.

FIG. 2 shows a flowchart of a method of treating an audio-type TENS according to an embodiment of the present invention. The method of treating an audio-type TENS according to an embodiment of the present invention comprises steps that are processed in the audio-type TENS treatment apparatus of FIG. Therefore, the contents described above with respect to the audio-type TENS treatment apparatus of FIG. 1 apply to the audio-type TENS treatment method according to the present embodiment, even if omitted below.

The Bluetooth communication module 210 receives audio data from the music reproduction apparatus 100 using Bluetooth communication (step S210).

The decoding unit 220 decodes the input audio data (step S220).

The digital-to-analog converter 230 converts the decoded digital audio data into an analog signal and outputs an analog audio signal (step S230).

Meanwhile, the frequency generator 240 generates a TENS frequency signal, which is a signal of a frequency corresponding to TENS (Transcutaneous Electrical Nerve Stimulation) (step S240).

The first amplifier 250 amplifies the TENS frequency signal to a predetermined level (step S250).

The mixer 260 mixes the audio signal from the digital-to-analog converter 230 and the TENS frequency signal from the first amplifier 250, and outputs an audio-TENS mixed signal in operation S260.

The second amplifier 270 amplifies the audio-TENS mixed signal from the mixer 260 to a level suitable for the user to listen to (step S270), and outputs the amplified audio-TENS mixed signal to the speaker 300 Step S280).

FIG. 3 shows a configuration of an audio-type TENS treatment apparatus according to another embodiment of the present invention.

1 differs from the embodiment of FIG. 1 in that the audio-type TENS therapy apparatus 200 of FIG. 1 receives audio data from an external music playback apparatus 100 using Bluetooth communication, The treatment apparatus 400 is in the point of reproducing an MP3 file stored in the memory 410. [

Referring to FIG. 3, the audio-type TENS therapy apparatus 400 according to the present embodiment includes a memory 410, an MP3 decoder 420, a digital-to-analog converter 430, a frequency generator 440, a first amplifier 450 A mixer 460, a second amplifier 470, a user interface 480, a switch 485, a timer 490, and a speaker 500.

The memory 410 stores an MP3 file. The memory 410 may be embedded in the audio TENS therapy device 400, in which case the MP3 file may be transferred from the device, such as a computer, to the memory 410 either wired or wirelessly. Alternatively, the memory 410 may be a removable memory, such as an SD card, in which case MP3 files may be stored in memory via other devices, such as a computer, and the memory may be inserted into the audio TENS therapy device 400 .

The MP3 decoder 420 decodes the MP3 file stored in the memory 410 and transfers the digital audio data to the digital-to-analog converter 430.

A digital converter 430, a frequency generator 440, a first amplifier 450, a mixer 460, a second amplifier 470, a user interface 480, a switch 485, a timer 490, a speaker 500 is described in greater detail with reference to digital-to-analog converter 230, frequency generator 240, first amplifier 250, mixer 260, second amplifier 270, user interface 280, switch 285, the timer 290, and the speaker 300, and therefore, the description related to Fig. 1 will be used.

FIG. 4 shows a flowchart of a method of treating an audio-type TENS according to another embodiment of the present invention. The method of treating an audio TENS according to an embodiment of the present invention comprises the steps processed in the audio type TENS treatment apparatus of FIG. Therefore, even if the following description is omitted, the contents described above with respect to the audio-type TENS treatment apparatus of FIG. 3 also apply to the audio-type TENS treatment method according to the present embodiment.

The MP3 decoder 420 decodes the MP3 file stored in the memory 410 and outputs digital audio data (step S420).

The digital-to-analog converter 430 converts the digital audio data into an analog signal, and outputs an analog audio signal (step S430).

Meanwhile, the frequency generator 440 generates a TENS frequency signal that is a signal of a frequency corresponding to TENS (Transcutaneous Electrical Nerve Stimulation) (S440).

The first amplifier 450 amplifies the TENS frequency signal to a predetermined level (step S450).

The mixer 460 mixes the audio signal from the digital-to-analog converter 430 and the TENS frequency signal from the first amplifier 450, and outputs an audio-TENS mixed signal in operation S460.

The second amplifier 470 amplifies the audio-TENS mixed signal from the mixer 460 to a level suitable for the user to listen to (step S470), and outputs the amplified audio-TENS mixed signal to the speaker 500 Step S480).

The present invention has been described with reference to the preferred embodiments. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. For example, according to another embodiment of the present invention, an audio type TENS treatment apparatus in which the embodiment of FIG. 1 and the embodiment of FIG. 3 are combined can be implemented. That is, the audio-type TENS therapy apparatus according to another embodiment of the present invention includes both the Bluetooth communication module 210 and the memory 410, and can receive the Bluetooth-based TENS from the external music playback apparatus 100 via the Bluetooth communication The audio signal may be mixed with the TENS frequency signal and the audio signal obtained by reproducing the MP3 file stored in the memory 410 may be mixed with the TENS frequency signal. Therefore, the disclosed embodiments should be considered in an illustrative rather than a restrictive sense. The scope of the present invention is defined by the appended claims rather than by the foregoing description, and all differences within the scope of equivalents thereof should be construed as being included in the present invention.

Claims (20)

A decoding unit decoding the input audio data;
A digital-to-analog converter for converting the decoded audio data into an analog signal and outputting an audio signal;
A frequency generator for generating a TENS frequency signal which is a signal of a frequency corresponding to TENS (Transcutaneous Electrical Nerve Stimulation);
A mixer for mixing the audio signal and the TENS frequency signal and outputting an audio-TENS mixed signal; And
And an amplifier for amplifying the audio-TENS mixed signal and outputting the amplified audio-TENS mixed signal to a speaker. The method according to claim 1,
Further comprising a switch for blocking or transmitting an output from the frequency generator to the mixer according to a user setting. 3. The method of claim 2,
Further comprising a timer for controlling the switch such that an output from the frequency generator to the mixer is cut off when a predetermined time has elapsed from the user. The method according to claim 1,
Wherein the frequency generator is turned on / off according to a user setting. 5. The method of claim 4,
And a timer for controlling the frequency generator to be turned off when a predetermined time has elapsed from the user. The method according to claim 1,
Wherein the input audio data is received using Bluetooth communication. The method according to claim 1,
Wherein the input audio data is received from any one of an MP3 player, a CD player, a smart phone, a tablet, and a TV using Bluetooth communication. The method according to claim 1,
Wherein the frequency of the TENS frequency signal is between 1 and 150 Hz. The method according to claim 1,
Wherein the frequency of the TENS frequency signal is between 70 and 80 Hz. Decoding audio data to be input;
Converting the decoded audio data into an analog signal and outputting an audio signal;
Generating a TENS frequency signal that is a signal of a frequency corresponding to TENS (Transcutaneous Electrical Nerve Stimulation);
Mixing the audio signal and the TENS frequency signal to output an audio-TENS mixed signal; And
Amplifying the audio-TENS mixed signal and outputting the amplified audio-TENS mixed signal to a speaker. 11. The method of claim 10,
Wherein the input audio data is received using Bluetooth communication. 11. The method of claim 10,
Wherein the input audio data is received from one of an mp3 player, a CD player, a smart phone, a tablet, and a TV using Bluetooth communication. An MP3 decoder for decoding the MP3 file stored in the memory and outputting digital audio data;
A digital-to-analog converter for converting the digital audio data into an analog signal and outputting an audio signal;
A frequency generator for generating a TENS frequency signal which is a signal of a frequency corresponding to TENS (Transcutaneous Electrical Nerve Stimulation);
A mixer for mixing the audio signal and the TENS frequency signal and outputting an audio-TENS mixed signal; And
And an amplifier for amplifying the audio-TENS mixed signal and outputting the amplified audio-TENS mixed signal to a speaker. 14. The method of claim 13,
Further comprising a switch for blocking or transmitting an output from the frequency generator to the mixer according to a user setting. 15. The method of claim 14,
Further comprising a timer for controlling the switch such that an output from the frequency generator to the mixer is cut off when a predetermined time has elapsed from the user. 14. The method of claim 13,
Wherein the frequency generator is turned on / off according to a user setting. 17. The method of claim 16,
And a timer for controlling the frequency generator to be turned off when a predetermined time has elapsed from the user. 14. The method of claim 13,
Wherein the frequency of the TENS frequency signal is between 1 and 150 Hz. 14. The method of claim 13,
Wherein the frequency of the TENS frequency signal is between 70 and 80 Hz. Decoding the MP3 file stored in the memory to output digital audio data;
Converting the digital audio data into an analog signal and outputting an audio signal;
Generating a TENS frequency signal that is a signal of a frequency corresponding to TENS (Transcutaneous Electrical Nerve Stimulation);
Mixing the audio signal and the TENS frequency signal to output an audio-TENS mixed signal; And
Amplifying the audio-TENS mixed signal and outputting the amplified audio-TENS mixed signal to a speaker.
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WO2022158960A1 (en) * 2021-01-22 2022-07-28 Togl Technology Sdn Bhd Device and method for processing, storing and transmitting a signal in a media file

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JP2006212458A (en) * 2000-01-07 2006-08-17 Biowave Corp Electrotherapy method and apparatus

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JP2006212458A (en) * 2000-01-07 2006-08-17 Biowave Corp Electrotherapy method and apparatus
US20020035309A1 (en) * 2000-09-21 2002-03-21 Hans Leysieffer At least partially implantable hearing system with direct mechanical stimulation of a lymphatic space of the inner ear
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Publication number Priority date Publication date Assignee Title
WO2020040497A1 (en) * 2018-08-20 2020-02-27 (주) 모비프렌 Bone conduction apparatus having tens therapy function
KR20200021267A (en) * 2018-08-20 2020-02-28 (주)모비프렌 Bone conduction apparatus with TENS therapy function
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WO2022158960A1 (en) * 2021-01-22 2022-07-28 Togl Technology Sdn Bhd Device and method for processing, storing and transmitting a signal in a media file

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