Early-stage self-test system for noise deafness

Abstract

The invention provides a noise deafness early-stage self-test system, and relates to the medical field, the noise deafness early-stage self-test system comprises a housing, the front surface of the housing is provided with a display screen used for displaying system content and an operation key group used for operating an system, and the side edge of the housing is provided with an earphone interface. According to the invention, the portable self-test at the early stage of noise deafness is realized, the problem of no targeted portable equipment is solved, a self-testee is helped to find the problem in time at the damage stage (reversible stage) at the frequency band of 3000Hz-6000Hz, the development of permanent noise deafness is avoided, the self-testee does not need to go back and forth to professional organizations (the traffic and time cost is saved), the single-time self-test cost is low, and based on the pure tone audiometry principle, the self-test efficiency is greatly improved. The error between a high-frequency test of a key frequency band and a detection result of a professional institution is less than or equal to 3dB, the precision requirement of early damage identification is met, the pure tone signal strength is limited to be 30dB-85dB, the battery has multiple protections, and the full-sound-insulation earmuff is made of a medical-grade material, so that potential safety hazards are avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the medical field, in particular to a noise deafness early self-test system. BACKGROUND

[0002] As one of the high-incidence occupational diseases in China, noise deafness has the characteristics of "concealment and progression". According to the record of "Occupational Health and Occupational Medicine" (Sun Guifan et al., People's Medical Publishing House, 2017 edition), the damage of noise to the auditory organ needs to go through three stages of "temporary hearing threshold shift, permanent hearing threshold shift, and occupational noise deafness". The early permanent hearing threshold shift only shows a "V" type drop (also known as "hearing valley") in the frequency band of 3000Hz-6000Hz. At this time, the self-tester has no obvious subjective feeling of deafness, and there is no abnormality in daily conversation (depending on the frequency band of 500Hz-2000Hz). However, if not intervened in time, the damage will gradually expand to the full frequency, eventually affecting normal social interaction and work ability.

[0003] At present, there are many portable self-test kits or devices including blood glucose self-test, AIDS self-test, and vision self-test. However, there is no corresponding product for portable self-test devices for noise damage. According to the above description, for employees exposed to noise occupational hazards, the physical examination cycle of one or two years is too long. If daily self-test can be performed in daily life, problems can be found earlier, and targeted measures can be taken in time.

[0004] Therefore, we improve it and propose a noise deafness early self-test system. SUMMARY

[0005] The purpose of the present application is to solve the problem that there is no corresponding product for portable self-test devices for noise damage, and according to the above description, for employees exposed to noise occupational hazards, the physical examination cycle of one or two years is too long. If daily self-test can be performed in daily life, problems can be found earlier, and targeted measures can be taken in time.

[0006] In order to achieve the above-mentioned purpose of the application, the present application provides a noise deafness early self-test system to improve the above-mentioned problems.

[0007] The present application is as follows:

[0008] The shell is provided with a display screen for displaying system content and an operation key group for operating the system on the front surface, an earphone interface is arranged on the side edge of the shell, and a full sound insulation earphone which is detachable and cooperates with the earphone interface is installed on the back surface of the shell.

[0009] The pure tone signal generation algorithm, the response judgment algorithm and the hearing score algorithm are configured to output pure tone signals covering a frequency range of 250Hz-6000Hz to the full-enclosure earphone through the earphone interface, and preferentially set the test frequency of 3000Hz-6000Hz pure tone signals to 40%-50% of the total test times; the response signals fed back by the operation key group within 3 seconds are received in real time, and the hearing test result is generated through the hearing score algorithm in combination with the frequency, intensity and response effectiveness of the pure tone signals;

[0010] The display screen is configured to synchronously display the test state, and the synchronous display test state includes the current test ear side, frequency, intensity, 3-second response countdown, hearing test result, and the hearing test result includes the grade and processing opinion.

[0011] As a preferred technical solution of the present application, the inside of the shell is integrated with a processor and a storage module, the display screen, the operation key group and the earphone interface are electrically connected with the processor and the storage module, and the storage module is configured to automatically store the complete data of each test, including the test time, the pure tone signal parameters of each frequency range, the response record and the final score.

[0012] As a preferred technical solution of the present application, the operation key group includes a left response key, a right response key, a power on / off key and a mode selection key.

[0013] The left response key and the right response key are provided with protruding ear-shaped marks on the surfaces, the key stroke is set to 0.8mm-1.2mm, and the pressing force is set to 60g-80g, so as to prevent misoperation, and the mode selection key can switch between a daily self-test mode and a deep test mode.

[0014] The daily self-test mode: the output pure tone signal frequency range is limited to 2000Hz-6000Hz, and the left and right ears are tested alternately, 10 times for each side, and the total duration of single test is ≤5 minutes.

[0015] The deep test mode: the output pure tone signal frequency range covers 250Hz-6000Hz, and the left and right ears are tested alternately, 15 times for each side, and the total duration of single test is ≤10 minutes.

[0016] As a preferred technical solution of the present application, a warning module built in the main shell is further included, the warning module is electrically connected with the processor, and when the processor detects that the score of two consecutive tests decreases by ≥10 points, the warning module automatically triggers an audible and light warning, and the display screen displays a pop-up window to display a prompt information of “pay attention to the hearing change”.

[0017] As a preferred technical solution of the present application, the hearing test result generated by the processor is divided into four levels according to the score value, and each level corresponds to a unique processing opinion.

[0018] Good hearing: 80-100 points, the processing suggestion is "recommended to keep self-test every month, continue to keep noise protection measures";

[0019] Early hearing impairment: 60-79 points, the processing suggestion is "recommended to keep self-test every week, avoid exposure to noise environment above 80dB, replace noise protection equipment if necessary";

[0020] Hearing impairment: 40-59 points, the processing suggestion is "recommended to go to a professional health examination agency for professional pure tone audiometry examination within 72 hours, and suspend high noise environment operation";

[0021] Severe hearing impairment: <40 points, the processing suggestion is "immediately stop noise environment operation, go to a doctor within 24 hours, and carry the historical test data of the device for the doctor to refer to".

[0022] As a preferred technical solution of the present application, the storage module adopts a 32GB EEPROM, supports storage of historical test data for at least 18 months, and the data has encryption function; the processor is further configured to generate a "hearing change trend curve" based on the historical data, the horizontal axis of the curve is the test date, and the vertical axis is the test score; the display screen 2 can switch to display the real-time test result or the trend curve through the mode selection key, and the test points of the key frequency band anomaly in the curve are marked as red dots.

[0023] As a preferred technical solution of the present application, the initial value of the pure tone signal strength output by the processor is set to 35dB, and has dynamic adjustment logic: if an effective response signal is received within 3 seconds, the intensity of the pure tone signal of the same frequency output next time is reduced by 5dB; if no response signal is received within 3 seconds, the intensity of the pure tone signal of the same frequency output next time is increased by 5dB; the pure tone signal intensity adjustment range is limited to 30dB-85dB, and the intensity adjustment times of the same frequency in a single test do not exceed 3 times.

[0024] As a preferred technical solution of the present application, the processor further has a "test interruption continuous measurement function": if the earphone interface is disconnected or the power is less than 10% during the test process, the processor automatically saves the current test progress; when the next time the machine is started, the display screen 2 pops up a window to prompt "whether to continue the last incomplete test", if "yes" is selected, it will continue from the breakpoint, and if "no" is selected, it will start the test again.

[0025] As a preferred technical solution of the present application, it further includes a data export interface opened in the right side wall of the main shell 1, which is electrically connected with the storage module; by connecting a computer or a mobile phone through a data export line, historical test data can be exported, and the data contains "test time, frequency segment details, response, score, processing suggestion" fields, which facilitates doctors to quickly obtain complete hearing change information.

[0026] Compared with the prior art, the application has the beneficial effects:

[0027] In the scheme of the present application:

[0028] 1. Realize the early portable self-test of noise deafness, solve the problem of non-targeted portable device, help the self-testers to find the problem in time in the 3000Hz-6000Hz frequency band damage stage (reversible period), avoid the development into permanent noise deafness, the self-testers do not need to go back and forth to the professional institutions (save the traffic and time cost), the single self-test cost is low, based on the pure tone audiometry principle, the key frequency band is tested with high frequency, the error of the detection result with the professional institution is less than or equal to 3dB, the accuracy requirement of 'early damage identification' is met, the pure tone signal strength is limited to 30dB-85dB, the battery has multiple protections, the full soundproof earmuff is made of medical grade material, and there is no safety hazard. BRIEF DESCRIPTION OF DRAWINGS

[0029] Fig. 1 The structure schematic view of the early self-test system of noise deafness provided by the present application is shown in the figure.

[0030] Fig. 2 The rear view schematic view of the shell of the early self-test system of noise deafness provided by the present application is shown in the figure.

[0031] Fig. 3 The flow schematic view of the early self-test system of noise deafness provided by the present application is shown in the figure.

[0032] Indicated in the figure:

[0033] 1, shell; 2, display screen; 3, operation key group; 4, earphone interface; 5, full soundproof earphone. DETAILED DESCRIPTION

[0034] In order to make the personnel in the technical field better understand the present application scheme, the technical solutions in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all. Based on the embodiments in the present application, all the embodiments obtained by the person skilled in the art without creative labor are within the scope of the present application.

[0035] In order to make the personnel in the technical field better understand the present application scheme, the technical solutions in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application.

[0036] It should be noted that the embodiments in the present application and the features and technical solutions in the embodiments can be combined with each other without conflict.

[0037] It should be noted that similar reference numerals and letters refer to like items in the several figures, and that, once an item is defined in one figure, it should not require further defining and explaining in subsequent figures.

[0038] Embodiment 1, please refer to Figs. 1-3 A noise deafness early self-test system, comprising a shell 1, the front of the shell 1 is provided with a display screen 2 for displaying system content and an operation key group 3 for operating the system, the side of the shell 1 is provided with a earphone interface 4, the rear of the shell 1 is installed with a full soundproof earphone 5 which is detachable and cooperates with the earphone interface 4;

[0039] It also comprises pure tone signal generation algorithm, response judgment algorithm and hearing score algorithm, which are configured to: output pure tone signals covering the frequency range of 250Hz-6000Hz to the full soundproof earphone 5 through the earphone interface 4, and preferentially set the test frequency of 3000Hz-6000Hz pure tone signals to 40%-50% of the total test times; receive the response signals fed back by the operation key group 3 within 3 seconds in real time, combine the frequency, intensity and response effectiveness of the pure tone signals, and generate hearing test results through the hearing score algorithm;

[0040] The display screen 2 is configured to synchronously display the test state, which includes the current test ear side, frequency, intensity, 3-second response countdown, hearing test results, and the hearing test results include grades and processing opinions.

[0041] The inside of the shell 1 is integrated with a processor and a storage module, the display screen 2, the operation key group 3 and the earphone interface 4 are electrically connected with the processor and the storage module, and the storage module is configured to automatically store the complete data of each test, including test time (accurate to minutes), pure tone signal parameters of each frequency band, response record and final score.

[0042] The operation key group 3 comprises a left response key, a right response key, a power on / off key and a mode selection key;

[0043] The left response key and the right response key are provided with protruding ear-shaped marks (the left mark is "L" and the right mark is "R") on the surface, the key stroke is set to 0.8mm-1.2mm, and the pressing force is set to 60g-80g to prevent accidental touch, and the mode selection key can switch between "daily self-test mode" and "deep test mode":

[0044] Daily self-test mode: the output pure tone signal frequency range is limited to 2000Hz-6000Hz, and the left and right ears are tested alternately, each side for 10 times (a total of 20 times), and the total duration of single test is ≤5 minutes;

[0045] Deep test mode: the output pure tone signal frequency range covers 250Hz-6000Hz, left and right ears are tested alternately, each side is tested for 15 times (a total of 30 times), and the total duration of single test is ≤10 minutes.

[0046] The early warning module built in the main shell 1 is also included, and the early warning module is electrically connected with the processor. When the processor detects that the score of two consecutive tests decreases by ≥10 points, the early warning module automatically triggers an audible and light early warning (the light is red and flashes, the sound is a "tick-tock" prompt sound of 80dB-90dB, and lasts for 3 seconds), and the display screen pop-up window displays the reminder information "pay attention to the change of hearing".

[0047] The hearing test result generated by the processor is divided into four levels according to the score value, and each level corresponds to a unique processing opinion:

[0048] Good hearing: 80-100 points (response accuracy rate ≥80%, no response record in key frequency band), processing opinion is "suggested to keep self-testing every month, and continue to take noise protection measures";

[0049] Early hearing impairment: 60-79 points (response accuracy rate 60%-79%, no response record in key frequency band ≤2 times), processing opinion is "suggested to keep self-testing every week, avoid exposure to noise environment above 80dB, and replace noise protection equipment if necessary";

[0050] Hearing impairment: 40-59 points (response accuracy rate 40%-59%, no response record in key frequency band 3-4 times), processing opinion is "suggested to go to a professional health examination institution for professional pure tone audiometry examination within 72 hours, and suspend high noise environment work";

[0051] Severe hearing impairment: <40 points (response accuracy rate <40%, no response record in key frequency band ≥5 times), processing opinion is "immediately stop noise environment work, go to a doctor within 24 hours, and carry the historical test data of the device for the doctor's reference".

[0052] The storage module adopts a 32GB EEPROM (electrically erasable programmable read-only memory) that supports storage of historical test data for at least 18 months, and the data has encryption function (the data is unlocked by simultaneously pressing the power-on key and the left response key for 3 seconds); the processor is also configured to generate a "hearing change trend curve" based on historical data, the horizontal axis of the curve is the test date (accurate to the day), and the vertical axis is the test score. The display screen 2 can switch to display real-time test results or trend curves through the mode selection key, and the test points of the key frequency band anomaly in the curve are marked as red dots.

[0053] The initial value of the pure tone signal strength output by the processor is set to 35dB (referring to the daily hearing threshold of normal people 40dB-50dB), and has dynamic adjustment logic: if a valid response signal is received within 3 seconds, the next output of the same frequency pure tone signal strength is reduced by 5dB; if no response signal is received within 3 seconds, the next output of the same frequency pure tone signal strength is increased by 5dB; the pure tone signal strength adjustment range is limited to 30dB-85dB (to avoid too low to be identified, too high to damage hearing), and the strength adjustment times of the same frequency in a single test does not exceed 3 times.

[0054] The processor also has a "test interruption continuous measurement function": if the earphone interface is disconnected or the power is less than 10% (the display screen 2 displays a power icon) during the test process, the processor automatically saves the current test progress (including the tested times, and the response record of each frequency); the next time the machine is started, the display screen 2 pop-up prompts "whether to continue the last incomplete test", and if "yes" is selected, it continues from the breakpoint, and if "no" is selected, it starts the test again.

[0055] It also includes a data export interface (Type-C interface) opened in the right side wall of the main shell 1, and the data export interface is electrically connected with the storage module; by connecting a computer or a mobile phone through a data export line, historical test data (in the format of Excel or PDF) can be exported, and the data contains "test time, frequency segment details, response, score, and processing opinion" fields, so that doctors can quickly obtain complete hearing change information.

[0056] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected or communicate with each other; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication or interaction relationship between two elements, unless otherwise explicitly limited. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0057] Obviously, the above-described embodiments are only some embodiments but not all the embodiments of the present application, the preferred embodiments of the present application are shown in the drawings, but do not limit the patent scope of the present application. The present application can be implemented in many different forms, and conversely, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing specific embodiments, or make equivalent replacements to some technical features therein. Any equivalent structure made by using the content of the present application specification and drawings, directly or indirectly applied to other related technical fields, is also within the patent protection scope of the present application.

Claims

1. A self-testing system for early noise-induced hearing loss, characterized in that, Includes a housing (1), the front of which is provided with a display screen (2) for displaying system content and an operation button group (3) for operating system, the side of which is provided with an earphone jack (4), and the back of which is provided with a detachable, fully noise-isolating earphone (5) that works with the earphone jack (4). It also includes a pure tone signal generation algorithm, a response judgment algorithm, and a hearing scoring algorithm, which are configured to: output a pure tone signal covering the frequency range of 250Hz-6000Hz to the fully noise-isolating headphones (5) through the headphone interface (4), and prioritize setting the test frequency of the 3000Hz-6000Hz pure tone signal to 40%-50% of the total number of tests; receive the response signal fed back by the operation button group (3) within 3 seconds in real time, and generate the hearing test result through the hearing scoring algorithm by combining the frequency, intensity and response validity of the pure tone signal; The display screen (2) is configured to synchronously display the test status, which includes the current test ear side, frequency, intensity, 3-second response countdown, and hearing test results. The hearing test results include the level and processing suggestions.

2. The self-testing system for early noise-induced hearing loss according to claim 1, characterized in that, The housing (1) integrates a processor and a storage module. The display screen (2), operation button group (3), and headphone jack (4) are electrically connected to the processor and storage module. The storage module is configured to automatically store complete data for each test, including test time, pure tone signal parameters of each frequency band, response record and final score.

3. The self-testing system for early noise-induced hearing loss according to claim 2, characterized in that, The operation button group (3) includes a left response button, a right response button, a power on / off button, and a mode selection button; The left and right response buttons have raised ear-shaped markings on their surfaces, and the button travel is set to 0.8mm-1.2mm, with a pressing force of 60g-80g to prevent accidental touches. The mode selection button can switch between "daily self-test mode" and "deep test mode". Daily self-test mode: The frequency range of the output pure tone signal is limited to 2000Hz-6000Hz. The left and right ears are tested alternately, 10 times for each side, and the total test time for a single test is ≤5 minutes. Deep testing mode: Output pure tone signal frequency range covers 250Hz-6000Hz, test left and right ears alternately, 15 times for each side, and the total test time for a single test is ≤10 minutes.

4. The self-testing system for early noise-induced hearing loss according to claim 3, characterized in that, It also includes a warning module built into the main unit housing (1). The warning module is electrically connected to the processor. When the processor detects that the score drops by ≥10 points in two consecutive tests, the warning module automatically triggers an audio-visual warning, and at the same time, the display screen pops up a reminder message that "the hearing changes need to be paid close attention to".

5. The self-testing system for early noise-induced hearing loss according to claim 4, characterized in that, The hearing test results generated by the processor are divided into four levels according to the score, and each level corresponds to a unique processing opinion: Hearing is good: 80-100 points. The recommended course of action is "to continue self-testing monthly and maintain noise protection measures." Early hearing loss: 60-79 points, the recommended treatment is "to conduct self-tests weekly, avoid exposure to noise environments above 80dB, and replace noise-canceling equipment if necessary"; Hearing impairment: 40-59 points, the recommended course of action is "It is suggested to go to an occupational health examination institution for a professional pure tone audiometry test within 72 hours and suspend work in high-noise environments"; Severe hearing loss: <40 points. The recommended course of action is to "immediately stop working in noisy environments, seek medical attention within 24 hours, and bring the historical test data of this device for the doctor's reference." 6. The self-testing system for early noise-induced hearing loss according to claim 5, characterized in that, The storage module uses 32GB EEPROM, which supports storing at least 18 months of historical test data, and the data has encryption function; the processor is also configured to generate a "hearing change trend curve" based on historical data, with the horizontal axis of the curve being the test date and the vertical axis being the test score. The display screen (2) can switch between displaying real-time test results or trend curves via the mode selection key, and test points with abnormal key frequency bands in the curve are marked with red dots.

7. The self-testing system for early noise-induced hearing loss according to claim 6, characterized in that, The processor outputs a pure tone signal with an initial strength of 35dB, and has dynamic adjustment logic: if a valid response signal is received within 3 seconds, the strength of the next output pure tone signal of the same frequency is reduced by 5dB; if no response signal is received within 3 seconds, the strength of the next output pure tone signal of the same frequency is increased by 5dB; the pure tone signal strength adjustment range is limited to 30dB-85dB, and the number of strength adjustments for the same frequency in a single test does not exceed 3 times.

8. The self-testing system for early noise-induced hearing loss according to claim 7, characterized in that, The processor also has a "test interruption and resume function": if the headphone jack is disconnected or the battery level is lower than 10% during the test, the processor will automatically save the current test progress; when the device is turned on again, the display screen (2) will pop up a window prompting "Do you want to continue the test that was not completed last time?" If you select "Yes", the test will continue from the breakpoint; if you select "No", the test will start again.

9. The self-testing system for early noise-induced hearing loss according to claim 8, characterized in that, It also includes a data export interface located on the right side wall of the main unit housing (1), which is electrically connected to the storage module; by connecting to a computer or mobile phone via a data export cable, historical test data can be exported, and the data includes fields such as "test time, frequency band details, response status, score, and treatment opinion", which makes it easy for doctors to quickly obtain complete hearing change information.

Images