Tinnitus diagnosis and treatment system based on sound treatment and virtual reality fusion

Abstract

The invention provides a tinnitus diagnosis and treatment system based on sound treatment and virtual reality fusion, the tinnitus diagnosis and treatment system comprises a tinnitus testing device, a virtual reality device, a tinnitus masking device and an electrical stimulation device, and the virtual reality device is in communication connection with the tinnitus testing device, the tinnitus masking device and the electrical stimulation device. The tinnitus masking device comprises a pair of tinnitus masking earphones which are worn on the left ear and the right ear respectively. According to the invention, the playing unit adjusts the relative positions of the working unit and the ears by means of the first adjusting part and the second adjusting part, and distributes the sound signals at different positions to the loudspeakers at different positions in the working unit, so that three-dimensional presentation of the audio is realized from multiple dimensions, the presentation of the audio is enabled to be well adapted to display animations, and in addition, the sound quality is improved. The intensity of electrical stimulation is intelligently controlled according to the electroencephalogram signals.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a tinnitus diagnosis and treatment system based on the fusion of sound therapy and virtual reality. Background Art

[0002] Tinnitus is an abnormal sound hallucination in the ear or brain in the absence of an external sound source, accompanied by symptoms such as hearing loss. Tinnitus is usually described as a buzzing, roaring or hissing sound, but because tinnitus is a subjective feeling of the patient, its description varies from person to person. Severe tinnitus can make it difficult for patients to concentrate and make them irritable, which has a serious impact on their normal work, study and life.

[0003] Acoustic therapy transmits sounds similar to the tinnitus frequency band to the patient's ears, compensating for the lack of auditory information input caused by hearing loss, reducing compensatory discharges, and thus reducing the perception of tinnitus. It is a physical, non-invasive treatment. Compared with drug therapy, cochlear implant electrical stimulation therapy and other treatment methods, it has the advantages of low cost, high safety, and simplicity, making acoustic therapy the most commonly used tinnitus treatment method. However, single acoustic therapy has no regulatory effect on other central systems such as the limbic system, and the treatment effect is poor. In addition, monotonous acoustic therapy can easily bring psychological burden to patients, making it difficult for patients to adhere to treatment. Summary of the invention

[0004] In order to solve the technical problem that the single sound therapy in the prior art has poor treatment effect and brings psychological burden to patients, the tinnitus diagnosis and treatment system based on the fusion of sound therapy and virtual reality proposed in the present invention includes a tinnitus test device, a virtual reality device, a tinnitus masking device and an electrical stimulation device, wherein the virtual reality device is respectively connected to the tinnitus test device, the tinnitus masking device and the electrical stimulation device for communication;

[0005] The tinnitus masking device comprises a pair of tinnitus masking earphones, which are respectively worn on the left ear and the right ear.

[0006] Preferably, the tinnitus masking earphones include an ear hook unit, a playback unit and an ambient noise shielding plate, two ends of the ear hook unit are connected to the ambient noise shielding plate via a first connection portion and a second connection portion respectively, and the playback unit is movably connected to the ear hook unit.

[0007] Preferably, the ear hook unit includes a balancing module, a hanging rod and a connection port, the hanging rod is connected between the balancing module and the connection port, the balancing module is connected to the second connection part, and the end of the hanging rod away from the balancing module is connected to the first connection part.

[0008] Preferably, the playback unit includes a first adjustment part, a second adjustment part and a working unit, the first adjustment part is connected to the connection port via a connecting shaft, the first adjustment part and the second adjustment part are rotationally connected, and the second adjustment part is fixedly connected to the working unit.

[0009] Preferably, the working unit is a ring-shaped structure, with four loudspeakers evenly arranged inside, and distance sensors are arranged between the loudspeakers.

[0010] Preferably, the virtual reality device includes a display module and an adjustable fixing strap, the adjustable fixing strap is located above the display module, a central processing circuit is arranged inside the display module, a first sampling electrode is arranged on the top of the display module, and a second sampling electrode and a millimeter wave radar are arranged inside the adjustable fixing strap.

[0011] Preferably, the EEG signals collected by the first sampling electrode and the second sampling electrode are transmitted to a central processing circuit, which digitally filters the EEG waves, analyzes the time domain signals using wavelet transform, obtains a power spectrum, extracts basic EEG signals from the power spectrum, expresses the basic EEG signals in the form of a power time series in the frequency domain, standardizes the basic EEG signals, and calculates effect indicators.

[0012] Preferably, the working process of the virtual reality device, the tinnitus masking device, and the electrical stimulation device in cooperation with each other is that the central processing circuit obtains audio data corresponding to the display animation, separates the audio data into left channel data and right channel data, performs feature extraction on the left channel data and the right channel data, obtains corresponding left channel control parameters and right channel control parameters, and the tinnitus masking headphones perform three-dimensional presentation of the audio based on the left channel control parameters and the right channel control parameters. At the same time, the central processing circuit controls the intensity of the electrical stimulation based on preset parameters, monitors the patient's electroencephalogram signals in real time during the working process, and adjusts the intensity of the electrical stimulation according to the electroencephalogram signals.

[0013] Preferably, the formats of the left channel control parameters and the right channel control parameters are the same, and both include a position adjustment time interval, a relative position sequence, first audio data, second audio data, third audio data, and fourth audio data. The position adjustment time interval controls the adjustment interval time of the relative position of the working unit and the ear. The relative position sequence includes multiple position percentages arranged in time, and the position percentage is the ratio of the current distance between the working unit and the ear to the farthest distance between the working unit and the ear. With the assistance of the distance sensor, the first adjustment unit and the second adjustment unit are controlled according to the position adjustment time interval and the relative position sequence to adjust the relative position of the working unit and the ear. The first audio data, the second audio data, the third audio data, and the fourth audio data are audio data of the four speakers inside the working unit.

[0014] Preferably, the specific process of the central processing circuit adjusting the intensity of electrical stimulation according to the EEG signal is that the central processing circuit calculates the effect index according to the EEG signal, and when the mean value of the effect index within the set time period is greater than the health threshold, there is no need to adjust the intensity of electrical stimulation; when the mean value of the effect index within the set time period is less than or equal to the health threshold, the intensity of electrical stimulation is increased according to the set amplitude.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The playback unit adjusts the relative position of the working unit and the ear with the help of the first adjustment unit and the second adjustment unit, and distributes sound signals at different positions to speakers at different positions inside the working unit, thereby realizing three-dimensional presentation of audio from multiple dimensions, so that the audio presentation is well adapted to the display animation, and the intensity of electrical stimulation is intelligently controlled according to the EEG signal. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the tinnitus diagnosis and treatment system of the present invention;

[0018] Figure 2 is a side schematic diagram of the virtual reality device of the present invention;

[0019] Figure 3 is a top view of the virtual reality device of the present invention;

[0020] Figure 4 is a top view of the tinnitus masking earphone of the present invention;

[0021] Figure 5 is a schematic structural diagram of an ear hook unit of the present invention;

[0022] Figure 6 It is a structural schematic diagram of a playback unit of the present invention;

[0023] Figure 7 It is a schematic diagram of the structure of the electrical stimulation device of the present invention.

[0024] In the figure: 11, display module, 12, adjustable fixing belt, 13, first sampling electrode, 14, second sampling electrode, 15, millimeter wave radar, 21, ear hook unit, 211, balance module, 2111, microcontroller chip, 2112, battery, 212, hanging rod, 213, connection port, 22, playback unit, 221, first adjustment part, 2211, connecting axis, 222, second adjustment part, 223, working unit, 2231, speaker, 2232, distance sensor, 23, ambient noise shielding plate, 31, neck-hanging base, 32, mobile electrode patch. DETAILED DESCRIPTION

[0025] The technical solution of the present invention is described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0026] like Figure 1 As shown, the tinnitus diagnosis and treatment system based on the fusion of sound therapy and virtual reality proposed in the present invention includes a tinnitus testing device, a virtual reality device, a tinnitus masking device and an electrical stimulation device, and the virtual reality device is respectively communicated with the tinnitus testing device, the tinnitus masking device and the electrical stimulation device.

[0027] The tinnitus testing device obtains diagnosis and treatment results through pure tone audiometry and refined tinnitus detection, and sends the diagnosis and treatment results to the virtual reality device. The diagnosis and treatment results include the nature of tinnitus, tinnitus frequency and tinnitus loudness.

[0028] The tinnitus masking device includes a pair of tinnitus masking headphones, which are worn on the left ear and the right ear respectively. Figure 4 As shown, the tinnitus masking earphone comprises an ear hook unit 21, a playback unit 22 and an ambient noise shielding plate 23, both ends of the ear hook unit 21 are connected to the ambient noise shielding plate 23 through a first connection portion 24 and a second connection portion 25, respectively, and the playback unit 22 is movably connected to the ear hook unit 21. Figure 5 As shown, the ear hook unit 21 includes a balancing module 211, a hanging rod 212 and a connection port 213, and the hanging rod 212 is connected between the balancing module 211 and the connection port 213. The balancing module 211 is connected to the second connection part 25, and a microcontroller chip 2111 and a battery 2112 are arranged inside. The hanging rod 212 is arc-shaped and can be hung between the inner side of the user's ear and the head. The end of the hanging rod 212 away from the balancing module 211 is connected to the first connection part 24. Figure 6 As shown, the playback unit 22 includes a first adjustment part 221, a second adjustment part 222 and a working unit 223. The first adjustment part 221 is connected to the connection port 213 through a connecting shaft 2211. The first adjustment part 221 and the second adjustment part 222 are rotatably connected, and the second adjustment part 222 is fixedly connected to the working unit 223. The first adjustment part 221 and the second adjustment part 222 can be rotated under the drive of a micro motor to adjust the specific position of the working unit 223. The working unit 223 is a ring structure, and four speakers 2231 are evenly arranged inside. The speakers 2231 are specifically selected from Cowell's MEMS speakers, and a distance sensor 2232 is arranged between the speakers. The playback unit 22 can achieve: 1) with the assistance of the distance sensor 2232, the relative position of the working unit 223 and the ear is adjusted through the first adjustment part 221 and the second adjustment part 222; 2) the sound signals at different positions are distributed to the speakers at different positions inside the working unit 223, so as to realize the three-dimensional presentation of audio from multiple dimensions. The environmental noise shielding plate 23 is a circular polyester fiber sound absorbing plate.

[0029] like Figure 7 As shown, the electrical stimulation device includes a neck-hanging base 31, and the two ends of the neck-hanging base 31 are connected to the mobile electrode patch 32 through a wire. The neck-hanging base 31 can control the intensity of the electrical stimulation. When in use, the neck-hanging base 31 is worn around the neck, and the mobile electrode patch 32 is positioned on the relevant acupuncture points, such as the Ermen acupoint, the Tinggong acupoint, the Tinghui acupoint, the Yifeng acupoint, etc.

[0030] like Figure 2 and Figure 3 As shown, the virtual reality device includes a display module 11 and an adjustable fixing belt 12, and the adjustable fixing belt 12 is located above the display module 11 and is fixedly connected to the display module 11. A central processing circuit is arranged inside the display module 11 for controlling the working process of the tinnitus diagnosis and treatment system. A first sampling electrode 13 is arranged on the top of the display module 11, and the first sampling electrode 13 corresponds to the forehead position and is used to obtain the patient's electroencephalogram signal. A second sampling electrode 14 and a millimeter wave radar 15 are arranged inside the adjustable fixing belt 12. The second sampling electrodes 14 are symmetrically distributed on both sides of the corresponding positions of the back of the head, and are used to obtain the EEG signals of the trainee. The EEG signals collected by the first sampling electrode 13 and the second sampling electrode 14 are transmitted to the central processing circuit, which digitally filters the EEG waves and uses wavelet transform to analyze the time domain signals to obtain the power spectrum. The basic EEG signals are extracted from the power spectrum. The basic EEG signals are expressed in the form of a power time series in the frequency domain. The basic EEG signals include α waves (8-13Hz), β waves (13-20Hz) and θ waves (4-7Hz). The basic EEG signals are standardized and the effect index is calculated. When the mean value of the effect index within a set time period (for example, 5 minutes) is greater than the health threshold, it means that the sound played by the tinnitus masking device has suppressed the tinnitus and achieved the therapeutic effect. The specific calculation process of the effect index is: a(t), b(t) and c(t) represent the time series signals of the three frequency bands of α wave, β wave and θ wave respectively, and the effect index H(t) = a(t) / c(t)+1 / (b(t)×c(t)). The millimeter wave radar 15 is set at the corresponding position of the back of the head. The millimeter wave radar detects the tiny disturbances on the surface of the head skin caused by the arterial pulse and transmits the radar signal to the central processing circuit. The central processing circuit can obtain the heart rate data and blood pressure data by calculating and processing the radar signal.

[0031] The working process of the tinnitus diagnosis and treatment system based on the fusion of sound therapy and virtual reality is to obtain the patient's diagnosis and treatment results through a tinnitus testing device. The virtual reality device determines the corresponding display animation according to the diagnosis and treatment results. Based on the display animation, the virtual reality device, the tinnitus masking device, and the electrical stimulation device cooperate with each other to treat tinnitus.

[0032] The correspondence between the diagnosis and treatment results and the displayed animation specifically includes: when the patient's tinnitus is described as a dripping sound, the displayed animation is an animation of taking shelter from the rain in a tent in the forest; when the patient's tinnitus is described as a roaring sound, the displayed animation is an animation of the sea surging and the ebb and flow of the tide; when the patient's tinnitus is described as a ticking sound, the displayed animation is an animation of horses galloping across the grassland; when the patient's tinnitus is described as the sound of electric current, the displayed animation is an animation of countless meteors streaking through the Milky Way.

[0033] The working process of the virtual reality device, the tinnitus masking device, and the electrical stimulation device cooperating with each other is that the central processing circuit obtains the audio data corresponding to the display animation, separates the audio data into left channel data and right channel data, performs feature extraction on the left channel data and the right channel data, obtains the corresponding left channel control parameters and the right channel control parameters, and the tinnitus masking headphones perform three-dimensional presentation of the audio based on the left channel control parameters and the right channel control parameters. At the same time, the central processing circuit controls the intensity of the electrical stimulation based on preset parameters, monitors the patient's electroencephalogram signals, heart rate data and blood pressure data in real time during the working process, adjusts the intensity of the electrical stimulation according to the electroencephalogram signals, and adjusts the playback mode of the display module 11 according to the heart rate data and the blood pressure data.

[0034] The formats of the left channel control parameters and the right channel control parameters are the same, both including a position adjustment time interval, a relative position sequence, first audio data, second audio data, third audio data and fourth audio data. The position adjustment time interval controls the adjustment interval of the relative position of the working unit 223 and the ear. The relative position sequence includes multiple position percentages arranged in time, and the position percentage is the ratio of the current distance between the working unit 223 and the ear to the farthest distance between the working unit 223 and the ear. With the assistance of the distance sensor 2232, the first adjustment unit 221 and the second adjustment unit 222 are controlled according to the position adjustment time interval and the relative position sequence to adjust the relative position of the working unit 223 and the ear. The first audio data, the second audio data, the third audio data and the fourth audio data are audio data of the four speakers inside the working unit 223. The process of obtaining the left channel control parameters and the right channel control parameters is to determine the position adjustment time interval according to the playback speed of the displayed animation, select a moving sound-generating object in the displayed animation as a reference object, calculate the farthest point and the nearest point of the reference object in the entire movement process, split the displayed animation into frames, and in each frame, take the ratio of the current distance between the reference object and the nearest point to the distance between the farthest point and the nearest point as the position percentage, store it in the relative position sequence, and separate the audio signal corresponding to the picture into the first audio, the second audio, the third audio and the fourth audio according to the direction and distance of the sound source, and store them in the first audio data, the second audio data, the third audio data and the fourth audio data, respectively.

[0035] The specific process of the central processing circuit adjusting the intensity of electrical stimulation according to the EEG signal is that the central processing circuit calculates the effect index according to the EEG signal. When the average value of the effect index within the set time period is greater than the health threshold, there is no need to adjust the intensity of electrical stimulation. When the average value of the effect index within the set time period is less than or equal to the health threshold, the intensity of electrical stimulation is increased according to the set amplitude.

[0036] The specific process of the central processing circuit adjusting the playback mode of the display module according to the heart rate data and the blood pressure data is as follows: if any one of the detection values ​​of the heart rate data and the blood pressure data is greater than the basic value, and the difference from the basic value is greater than 10%, then the playback speed of the display animation is reduced according to the set amplitude; if any one of the detection values ​​of the heart rate data and the blood pressure data is less than the basic value, and the difference from the basic value is greater than 10%, then the playback speed of the display animation is increased according to the set amplitude; when the playback speed of the display animation changes, it is necessary to redetermine the position adjustment time interval and send the updated position adjustment time interval to the tinnitus masking headphones.

[0037] The above disclosure is only the preferred embodiment of the present invention, and certainly cannot be used to limit the scope of the present invention. It should be pointed out that for those skilled in the art, any equivalent changes made to the scheme of the present invention without departing from the design structure and principle of the present invention are considered to be within the protection scope of the present invention.

Claims

1. A tinnitus diagnosis and treatment system based on the fusion of sound therapy and virtual reality, characterized in that ,The tinnitus diagnosis and treatment system includes a tinnitus testing device, a virtual reality device, a tinnitus masking device and an electrical stimulation device, and the virtual reality device is respectively connected to the tinnitus testing device, the tinnitus masking device and the electrical stimulation device for communication; The tinnitus masking device comprises a pair of tinnitus masking earphones, which are respectively worn on the left ear and the right ear.

2. The tinnitus diagnosis and treatment system according to claim 1, characterized in that: The tinnitus masking earphone comprises an ear hook unit, a playing unit and an ambient noise shielding plate, two ends of the ear hook unit are connected to the ambient noise shielding plate through a first connecting part and a second connecting part respectively, and the playing unit is movably connected to the ear hook unit.

3. The tinnitus diagnosis and treatment system according to claim 2, characterized in that: The ear hook unit includes a balancing module, a hanging rod and a connection port, the hanging rod is connected between the balancing module and the connection port, the balancing module is connected to the second connection part, and the end of the hanging rod away from the balancing module is connected to the first connection part.

4. The tinnitus diagnosis and treatment system according to claim 3, characterized in that: The playback unit includes a first adjustment part, a second adjustment part and a working unit, the first adjustment part is connected to the connection port via a connecting shaft, the first adjustment part and the second adjustment part are rotationally connected, and the second adjustment part is fixedly connected to the working unit.

5. The tinnitus diagnosis and treatment system according to claim 4, characterized in that: The working unit is a ring-shaped structure, with four loudspeakers evenly arranged inside, and distance sensors are arranged between the loudspeakers.

6. The tinnitus diagnosis and treatment system according to claim 5, characterized in that: The virtual reality device includes a display module and an adjustable fixing belt, wherein the adjustable fixing belt is located above the display module, a central processing circuit is arranged inside the display module, a first sampling electrode is arranged on the top of the display module, and a second sampling electrode and a millimeter wave radar are arranged inside the adjustable fixing belt.

7. The tinnitus diagnosis and treatment system according to claim 6, characterized in that: The EEG signals collected by the first sampling electrode and the second sampling electrode are transmitted to the central processing circuit, which digitally filters the EEG waves, analyzes the time domain signals using wavelet transform, obtains a power spectrum, extracts basic EEG signals from the power spectrum, expresses the basic EEG signals in the form of a power time series in the frequency domain, standardizes the basic EEG signals, and calculates effect indicators.

8. The tinnitus diagnosis and treatment system according to claim 6, characterized in that: The working process of the virtual reality device, the tinnitus masking device, and the electrical stimulation device in cooperation with each other is that the central processing circuit obtains the audio data corresponding to the display animation, separates the audio data into left channel data and right channel data, performs feature extraction on the left channel data and the right channel data, obtains the corresponding left channel control parameters and right channel control parameters, and the tinnitus masking headphones perform three-dimensional presentation of the audio based on the left channel control parameters and the right channel control parameters. At the same time, the central processing circuit controls the intensity of the electrical stimulation based on preset parameters, monitors the patient's electroencephalogram signals in real time during the working process, and adjusts the intensity of the electrical stimulation according to the electroencephalogram signals.

9. The tinnitus diagnosis and treatment system according to claim 8, characterized in that: The formats of the left channel control parameters and the right channel control parameters are the same, and both include a position adjustment time interval, a relative position sequence, first audio data, second audio data, third audio data, and fourth audio data. The position adjustment time interval controls the adjustment interval time of the relative position of the working unit and the ear. The relative position sequence includes multiple position percentages arranged in time, and the position percentage is the ratio of the current distance between the working unit and the ear to the farthest distance between the working unit and the ear. With the assistance of the distance sensor, the first adjustment unit and the second adjustment unit are controlled according to the position adjustment time interval and the relative position sequence to adjust the relative position of the working unit and the ear. The first audio data, the second audio data, the third audio data, and the fourth audio data are audio data of the four speakers inside the working unit.

10. The tinnitus diagnosis and treatment system according to claim 8, characterized in that: The specific process of the central processing circuit adjusting the intensity of electrical stimulation according to the EEG signal is that the central processing circuit calculates the effect index according to the EEG signal. When the average value of the effect index within the set time period is greater than the health threshold, there is no need to adjust the intensity of electrical stimulation. When the average value of the effect index within the set time period is less than or equal to the health threshold, the intensity of electrical stimulation is increased according to the set amplitude.

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