Ear sound production instrument, detection method, medium and computer equipment

By setting multiple soundproof covers on the outside of the ear canal detection probe, the dependence of otoacoustic emission detection on a dedicated soundproof room is eliminated, and otoacoustic emission detection with a high signal-to-noise ratio is achieved in a normal indoor environment, expanding its application scenarios and detection accuracy.

CN121421518APending Publication Date: 2026-01-30深圳市具安科技有限公司
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Patent Information

Application Number
CN202511437899.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-10-09
Publication Date
2026-01-30

AI Technical Summary

Technical Problem

Existing otoacoustic emission (OAE) testing equipment requires a dedicated quiet environment or soundproof room, and cannot effectively shield external noise in ordinary indoor environments, affecting the signal-to-noise ratio and the accuracy of the results, making it difficult to popularize, especially in primary healthcare institutions and mobile screening scenarios.

Method used

Design an otoacoustic emission detection device that combines an ear canal detection probe with a soundproof cover. The probe forms a sealed fit with the ear canal wall, and a multi-layer soundproof cover is installed on the outside to reduce noise interference, including an outer sealing layer and an inner sound-absorbing layer, thereby improving the signal-to-noise ratio of the reflected wave.

Benefits of technology

This method achieves reliability and applicability of otoacoustic emission detection in ordinary indoor environments, improves the signal-to-noise ratio of reflected waves, and ensures the accuracy and flexibility of detection results. It is suitable for hospital outpatient clinics, primary care screening, and mobile medical examination scenarios.

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Abstract

The invention relates to an ear sound production instrument, a detection method, a medium and computer equipment, and the instrument comprises an ear canal detection probe which is suitable for being inserted into an ear canal of a tested object and forms sealing fit with the wall of the ear canal, and the ear canal detection probe comprises an acoustic output unit which transmits an audio signal to the ear canal, the acoustic input unit is used for receiving a reflected wave of the audio signal in an ear canal; the sound insulation cover is arranged outside the auditory meatus detection probe in a sleeving mode and covers the auditory meatus detection probe and an auditory meatus opening so as to weaken noise and improve the signal-to-noise ratio of reflected waves, otoacoustic emission detection can be carried out without depending on a special sound insulation room environment, and the accuracy and clinical applicability of a detection result are guaranteed.
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Description

Technical Field

[0001] This application relates to the field of medical testing technology, and in particular to an otoacoustic instrument, a testing method, a medium, and a computer device. Background Technology

[0002] Otoacoustic emission (OAE) testing is a common clinical audiological examination method. Its basic principle is to emit sound frequency signals into the ear canal and determine the function of the middle ear and cochlea by detecting the sound waves reflected back from the ear canal. Existing OAE testing equipment typically requires use in a dedicated quiet environment or soundproof room to avoid the influence of external noise on the reflected wave signals.

[0003] However, in practical applications, the construction and use of soundproof rooms increase the site costs and testing costs for equipment use. Furthermore, in primary healthcare institutions or mobile screening scenarios, there is often a lack of facilities to provide soundproof rooms, which limits the widespread adoption of otoacoustic emission testing. In addition, the sealing of traditional probes to the ear canal mainly relies on earplug-type structures, which have limited sound insulation capabilities and are difficult to effectively shield against external noise in ordinary indoor environments, thus affecting the signal-to-noise ratio and the accuracy of the results.

[0004] Therefore, there is an urgent need for an otoacoustic emission detection device that can be used in ordinary indoor environments. This device can improve sound insulation capabilities through structural improvements and reduce the interference of environmental noise on reflected wave signals without relying on a special soundproof room, thereby ensuring the reliability and applicability of the detection. Summary of the Invention

[0005] The purpose of this application is to provide an otoacoustic emission detection device that can be used in ordinary indoor environments. This device can improve sound insulation capabilities through structural improvements and reduce the interference of environmental noise on reflected wave signals without relying on a special soundproof room, thereby ensuring the reliability and applicability of the detection.

[0006] According to one aspect of this application, an otoacoustic sound-generating instrument is provided, comprising: An ear canal detection probe is suitable for insertion into the ear canal of a test subject and forming a sealed fit with the ear canal wall. The ear canal detection probe includes: an acoustic output unit that emits an audio frequency signal into the ear canal, and an acoustic input unit that receives the reflected wave of the audio frequency signal in the ear canal. A soundproof cover is fitted over the outside of the ear canal detection probe to cover the ear canal detection probe and the ear canal opening, thereby reducing noise and improving the signal-to-noise ratio of the reflected wave.

[0007] More preferably, the acoustic output unit includes a miniature loudspeaker for producing click sounds, short tones, or continuous sounds at a specific frequency.

[0008] More preferably, the frequency range of the audio signal emitted by the acoustic output unit is 226Hz to 8000Hz.

[0009] More preferably, the otoacoustic generator further includes: The signal processing module filters, amplifies, and suppresses noise in the received transmitted wave to generate detection data. The data transmission unit sends the detection output to an external terminal for clinical diagnosis by the user.

[0010] More preferably, the soundproof cover is provided with multiple layers of sound insulation material, the multiple layers of sound insulation material including: an outer sealing layer and an inner sound-absorbing layer. The outer sealing layer is used to fit the test subject's head to block environmental noise, while the inner sound-absorbing layer is used to attenuate residual noise and further improve the signal-to-noise ratio of the reflected wave.

[0011] An otoacoustic emission detection method includes the following steps: Insert the ear canal detection probe into the subject's ear canal to form a seal with the ear canal wall; The acoustic output unit of the ear canal detection probe transmits an audio signal into the ear canal. The acoustic input unit of the ear canal detection probe receives the reflected wave of the audio signal in the ear canal; A soundproof cover is installed outside the ear canal detection probe to cover the ear canal detection probe and the ear canal opening, so as to reduce noise and improve the signal-to-noise ratio of the reflected wave. Detection data is generated based on the reflected waves, and the detection data is used for clinical diagnosis.

[0012] More preferably, in the step of generating detection data based on the reflected wave and using the detection data for clinical diagnosis: The reflected wave received by the acoustic input unit is filtered, amplified, and noise suppressed to generate detection data, which is then sent to an external terminal for clinical diagnosis via a data transmission unit.

[0013] More preferably, the soundproof cover fits snugly against the head of the test subject to form a surrounding closed structure, and the soundproof cover has an outer sealing layer and an inner sound-absorbing layer. The outer sealing layer is used to fit the test subject's head to block environmental noise, while the inner sound-absorbing layer is used to attenuate residual noise and further improve the signal-to-noise ratio of the reflected wave.

[0014] A computer-readable storage medium storing a computer program that, when executed by a processor, causes the processor to perform the steps of the method.

[0015] A computer device includes a memory and a processor, the memory storing a computer program that, when executed by the processor, causes the processor to perform the steps of the method.

[0016] This application has the following beneficial effects: This invention provides a soundproof cover around the ear canal detection probe, which covers the probe and the ear canal opening. This further reduces external noise interference by sealing the probe with the ear canal wall, thereby improving the signal-to-noise ratio of the reflected wave. This allows otoacoustic emission testing to be performed without relying on a dedicated soundproof room environment, ensuring the accuracy and clinical applicability of the test results. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a structural block diagram of the otoacoustic emission instrument according to one embodiment of this application; Figure 2 This is a flowchart of the steps of the otoacoustic emission detection method according to one embodiment of this application; Figure 3 This is an internal structural diagram of the computer device described in one embodiment of this application.

[0019] Explanation of icon numbers: 100. Otoacoustic sound-generating instrument; 200. Computer equipment; 10. Ear canal detection probe; 11. Acoustic output unit; 12. Acoustic input unit; 20. Soundproof enclosure; 201. Outer sealing layer; 202. Inner sound-absorbing layer; 30. Signal processing module; 40. Data transmission unit; 50. External terminal; Detailed Implementation To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings. Preferred embodiments of this application are shown in the drawings. However, this application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this application.

[0020] Please refer to Figure 1 This embodiment provides an otoacoustic emission instrument 100. This otoacoustic emission instrument 100 is mainly used in clinical otoacoustic emission testing to assess middle ear and cochlear function without the need for a dedicated soundproof room.

[0021] The otoacoustic instrument 100 includes an ear canal detection probe 10. The ear canal detection probe 10 is adapted to be inserted into the ear canal of a subject and forms a sealed fit with the ear canal wall. Here, "sealed fit" should be understood as the probe's outer wall structure design or an additional flexible component (such as a silicone ear sleeve) conforming to the ear canal wall, thereby reducing audio signal leakage and suppressing the entry of external noise. Those skilled in the art will understand that this seal is not strictly airtight, but rather refers to creating sufficient acoustic coupling conditions to ensure stable signal propagation and acquisition.

[0022] Furthermore, the ear canal detection probe 10 includes an acoustic output unit 11 and an acoustic input unit 12. The acoustic output unit 11 transmits an acoustic signal into the ear canal. This acoustic signal can be a clinically common click, short tone, or continuous tone to stimulate the cochlear hair cells to produce a corresponding response. The acoustic input unit 12 receives reflected waves within the ear canal. Here, "reflected waves" refers to the echo acoustic signals generated after the emitted acoustic signal interacts with the structures of the ear canal, middle ear, and cochlea, including transient otoacoustic emissions and distortion product otoacoustic emissions (OAEs). Through the coordination of the output and input, a complete acoustic detection closed loop can be formed, providing a foundation for subsequent signal analysis.

[0023] Furthermore, the otoacoustic instrument 100 also includes a soundproof cover 20. The soundproof cover 20 is fitted over the outside of the ear canal detection probe 10, covering the ear canal opening area. "Fitting over" here should be understood as the soundproof cover 20 being combined with the probe exterior in a covering or enveloping manner, with its coverage area at least including the exposed portion of the probe and the ear canal entrance, thereby forming an effective sound barrier between the probe and the outside environment. This structure further reduces the interference of external environmental noise on the reflected wave signal within the ear canal. Unlike existing technologies that rely on soundproof rooms, this embodiment, through the local soundproofing measures of the soundproof cover, allows for detection in a normal indoor environment, thus significantly reducing the dependence of detection on site conditions.

[0024] In practice, dedicated soundproof rooms are often unavailable in hospital outpatient clinics or primary care screening facilities. When using the otoacoustic emission instrument 100 of this embodiment, doctors only need to insert the ear canal detection probe 10 into the subject's ear canal and cover it with a soundproof cover 20 to complete the test in a standard indoor environment. This not only improves the convenience of the test but also expands the application of otoacoustic emission technology in newborn hearing screening, pediatric physical examinations, and routine clinical diagnosis.

[0025] In summary, this embodiment achieves the transmission of audio signals and the reception of reflected waves within the ear canal through the acoustic output unit 11 and acoustic input unit 12 of the ear canal detection probe 10; and by using the soundproof cover 20, it effectively reduces external noise interference and improves the signal-to-noise ratio of the reflected wave signal, thereby solving the technical problem of requiring a special soundproof room for detection in the prior art, and ensuring the accuracy and clinical applicability of the detection results.

[0026] More preferably, the acoustic output unit 11 includes a miniature speaker. The miniature speaker can achieve stable audio signal output within a limited space. Its small size facilitates integrated design with the ear canal detection probe 10, ensuring comfortable insertion of the probe into the subject's ear canal without causing noticeable foreign body sensation or pressure. During use, the miniature speaker can generate click sounds, short tones, or continuous sounds of specific frequencies according to the detection requirements.

[0027] Among them, click sounds are often used to induce transient otoacoustic emissions (TEOAEs), which can reflect the functional state of cochlear hair cells in a short time; short sounds can be used as stimulation signals for rapid screening; and continuous sounds of specific frequencies can be used for distortion product otoacoustic emissions (DPOAEs) detection, which assesses the sensitivity and integrity of the auditory system by analyzing specific response frequencies in the ear canal of the test subject.

[0028] Furthermore, to meet the requirements of different clinical tests, the emission frequency range of the miniature speaker can be set between 226Hz and 8000Hz. Low-frequency signals help analyze middle ear conduction function, while high-frequency signals can cover the high-frequency region of the cochlear basilar membrane, thereby achieving a comprehensive assessment of different auditory sites. This design can accommodate various application scenarios, including newborn hearing screening, regular follow-up examinations for children, and clinical diagnosis for adults.

[0029] More preferably, the acoustic output unit 11 emits an audio signal with a frequency range of 226 Hz to 8000 Hz. This frequency range covers the stimulation frequency band commonly used in clinical otoacoustic emission testing, where signals as low as 226 Hz can be used to assess middle ear conduction function, while signals up to 8000 Hz can be used to detect the high-frequency sensitive area of ​​the cochlear basilar membrane. By selecting an appropriate frequency signal for emission within this range, a comprehensive assessment of the subject's auditory system can be achieved.

[0030] In practical applications, transmitting low-frequency signals in the range of 226Hz to 1000Hz helps analyze the conduction characteristics of sound signals by the tympanic membrane and middle ear structures; transmitting mid-frequency signals in the range of 1000Hz to 4000Hz can be used for routine hearing screening of newborns and children; and transmitting high-frequency signals in the range of 4000Hz to 8000Hz can detect the functional status of the high-frequency region of the cochlea, which is of great significance for the early detection of high-frequency hearing loss.

[0031] Therefore, by reasonably setting the operating frequency range of the acoustic output unit 11, the otoacoustic instrument 100 of the present invention can meet a variety of clinical needs, and can be used for both rapid screening and precise diagnosis, thereby improving the applicability and flexibility of the test.

[0032] More preferably, the otoacoustic sound-generating instrument 100 further includes a signal processing module 30 and a data transmission unit 40.

[0033] The signal processing module 30 is electrically connected to the acoustic input unit 12 and is used to preprocess the received reflected wave signal. Specifically, the signal processing module 30 can filter the original acoustic signal to remove environmental and system noise; amplify it to enhance weak reflected wave signals; and perform noise suppression processing to improve the signal-to-noise ratio between the effective signal and background noise. Through the processing of this module, stable and analyzable detection data can be generated, avoiding misjudgments caused by signal distortion or excessive interference.

[0034] Furthermore, the data transmission unit 40 is connected to the signal processing module 30 and is used to output the detection data to an external terminal 50. The external terminal 50 can be a computer, tablet, or portable medical terminal, allowing doctors to display and analyze the detection data in real time. With this function, the present invention can be used not only in traditional clinical environments but also in newborn hearing screening, primary healthcare examinations, and mobile health checkups, enabling rapid diagnosis and result storage.

[0035] Thus, through the cooperation of the signal processing module 30 and the data transmission unit 40, the otoacoustic instrument 100 of the present invention achieves seamless interaction with external terminals while ensuring high-quality detection data, thereby improving the efficiency and applicability of clinical diagnosis.

[0036] More preferably, the soundproof cover 20 is designed to be detachable, facilitating replacement or disinfection between different test subjects, thereby meeting the requirements for repeated clinical use. Since otoacoustic emission testing is frequently used in newborns and children, with high usage frequency and strict hygiene requirements, a detachable soundproof cover effectively improves ease of use and safety.

[0037] Furthermore, the soundproof cover 20 can be a wraparound earmuff structure, covering the ear canal detection probe 10 and the ear canal opening area, and forming a wraparound fit with the subject's head. Through this wraparound closed structural design, the outer sealing layer 201 fits tightly against the head, structurally blocking most of the external environmental noise; the inner sound-absorbing layer 202 is located inside the sealing layer, used to further absorb residual stray noise and echoes. The synergistic effect of the dual-layer structure results in a higher signal-to-noise ratio when the reflected wave signal in the ear canal is received.

[0038] In practical applications, when subjects are in ordinary clinics or noisy environments, traditional probes cannot effectively isolate environmental noise using only earplug-type seals, often requiring a dedicated soundproof room. This embodiment, by adding multiple layers of soundproof covers 20 to the outside of the ear canal detection probe 10, allows detection to be completed without a soundproof room, thus solving the problem of existing technologies relying on specific detection environments and significantly improving the universality and clinical feasibility of otoacoustic emission detection.

[0039] Please refer to Figure 2 This embodiment also provides an otoacoustic emission (OAE) detection method, used in conjunction with the aforementioned otoacoustic emission instrument 100 to perform OAE detection. The method includes the following steps: Step S10: Insert the ear canal detection probe 10 into the ear canal of the subject, so that the ear canal detection probe 10 forms a sealed fit with the ear canal wall. The "sealed fit" here should be understood as the probe's outer wall or its flexible ear sleeve fitting against the ear canal wall to reduce acoustic signal leakage and suppress the entry of external noise, thereby forming effective acoustic coupling.

[0040] Step S20: An acoustic signal is emitted into the ear canal through the acoustic output unit 11 within the ear canal detection probe 10. The acoustic signal can be a click, a short tone, or a continuous tone of a specific frequency. Different forms of signals can be used to induce different types of otoacoustic emission responses to meet clinical testing needs.

[0041] Step S30: The acoustic input unit 12 within the ear canal detection probe 10 receives the reflected wave of the audio signal within the ear canal. Here, "reflected wave" refers to the acoustic response of the audio signal returning to the ear canal after passing through the middle ear and cochlear structures, including transient otoacoustic emissions (TEOAE) and distortion product otoacoustic emissions (DPOAE) signals.

[0042] Step S40: A soundproof cover 20 is installed outside the ear canal detection probe 10, covering the ear canal opening and the probe 10 itself. This step effectively reduces interference from external environmental noise and improves the signal-to-noise ratio of the reflected waves received by the acoustic input unit 12. Compared with existing technologies that require testing in a dedicated soundproof room, this embodiment allows testing to be completed in a normal indoor environment using the soundproof cover 20, making it suitable for scenarios such as hospital outpatient clinics, primary care screening, and mobile medical examinations.

[0043] Step S50: Generate detection data based on the reflected wave and use the detection data for clinical diagnosis. Specifically, the detection data can be filtered, amplified, and noise suppressed by the signal processing module 30 to ensure the stability and accuracy of the data; it is then output to the external terminal 50 via the data transmission unit 40 for analysis and diagnosis by the doctor on the terminal.

[0044] Through the above methods and steps, this embodiment not only realizes the emission and reflection of sound frequency signals in the ear canal, but also effectively improves the signal-to-noise ratio by covering with the soundproof cover 20. This solves the problem of existing technologies relying on soundproof rooms, enabling otoacoustic emission detection to be accurately completed in a normal indoor environment and ensuring the clinical reliability of the test results.

[0045] More preferably, the step of generating detection data based on the reflected wave and using the detection data for clinical diagnosis further includes the following processing procedure: First, the reflected wave received by the acoustic input unit 12 is filtered to remove power supply noise, environmental noise and stray signals in non-target frequency bands, thereby retaining the effective components related to cochlear function. Subsequently, the filtered signal is amplified to enhance the amplitude of the weak reflected wave signal, ensuring that it can be stably acquired and analyzed by the signal processing module 30. Furthermore, noise suppression processing is performed to eliminate background noise interference through algorithms, thereby significantly improving the signal-to-noise ratio of the reflected wave signal. Based on this, stable test data is generated and output to an external terminal 50 via data transmission unit 40. The external terminal 50 can be a computer, tablet, or portable medical device, allowing doctors to display, analyze, and save the test data in real time, thereby enabling rapid diagnosis and tracking management.

[0046] Through the above optimization steps, this method can ensure the accuracy and reliability of the generated detection data, enabling otoacoustic emission detection to provide a reliable basis for clinical diagnosis even in ordinary indoor environments.

[0047] More preferably, when the soundproof cover 20 is in contact with the head of the test subject, it forms a surrounding closed structure, so that the ear canal detection probe 10 and the ear canal opening are both located in the internal space of the soundproof cover 20. Through this surrounding closed design, the direct transmission of environmental noise can be physically blocked, significantly reducing the interference of external sound sources on the reflected waves in the ear canal.

[0048] Furthermore, the soundproof cover 20 is provided with an outer sealing layer 201 and an inner sound-absorbing layer 202. The outer sealing layer 201 is made of a flexible material, which can conform to the curvature of different test subjects' heads to achieve a comfortable and stable fit, thereby avoiding the generation of sound leakage paths; the inner sound-absorbing layer 202 is composed of porous or fibrous sound-absorbing material, which is used to absorb residual stray noise and echoes, further purifying the testing environment.

[0049] With the cooperation of the above-mentioned double-layer sound insulation structure, not only can the signal-to-noise ratio of the reflected wave received by the acoustic input unit 12 be improved during the detection process, but also the detection can be carried out without the need for a soundproof room to obtain stable and reliable otoacoustic emission data, thereby improving the applicability of the method in general outpatient clinics, primary medical points and mobile physical examination scenarios.

[0050] More preferably, the present invention also provides a computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, the processor performs the steps of the aforementioned otoacoustic emission detection method, including: controlling the acoustic output unit 11 of the ear canal detection probe 10 to emit an audio signal into the ear canal; acquiring the reflected wave received by the acoustic input unit 12; calling the signal processing module 30 to filter, amplify, and suppress noise in the reflected wave to generate detection data; and controlling the data transmission unit 40 to send the detection data to an external terminal 50 for clinical diagnostic use.

[0051] More preferably, the present invention also provides a computer device including a memory and a processor. The memory stores a computer program that, when executed by the processor, causes the processor to perform the steps of the aforementioned otoacoustic emission detection method.

[0052] Specifically, the processor can call the program in the memory to control the acoustic output unit 11 of the ear canal detection probe 10 to emit an audio signal into the ear canal and collect the reflected wave received by the acoustic input unit 12. Furthermore, the processor can also call the signal processing module 30 to filter, amplify and suppress noise in the reflected wave to generate detection data. Finally, the processor sends the detection data to the external terminal 50 through the data transmission unit 40 so that doctors can analyze and diagnose it in a clinical environment.

[0053] Figure 3An internal structural diagram of a computer device 200200 in one embodiment is shown. This computer device 200 can specifically be a terminal or a server. Figure 3 As shown, the computer device 200 includes a processor, memory, and a network interface connected via a system bus. The memory includes a non-volatile storage medium and internal memory. The non-volatile storage medium of the computer device 200 stores an operating system and may also store a computer program, which, when executed by the processor, causes the processor to implement a method. The internal memory may also store a computer program, which, when executed by the processor, causes the processor to perform a method. Those skilled in the art will understand that... Figure 3 The structure shown is merely a block diagram of a portion of the structure related to the present application and does not constitute a limitation on the computer device 200 to which the present application is applied. The specific computer device 200 may include more or fewer components than those shown in the figure, or combine certain components, or have different component arrangements.

[0054] Those skilled in the art will understand that all or part of the processes in the above embodiments can be implemented by a computer program instructing related hardware. The program can be stored in a non-volatile computer-readable storage medium, and when executed, it can include the processes of the embodiments described above. Any references to memory, storage, databases, or other media used in the embodiments provided in this application can include non-volatile and / or volatile memory. Non-volatile memory can include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), or flash memory. Volatile memory can include random access memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in various forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), dual data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link DRAM (SLDRAM), RAMbus direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and RAMbus dynamic RAM (RDRAM), etc.

[0055] Therefore, by setting a soundproof cover 20 outside the ear canal detection probe 10 to cover the probe 10 and the ear canal opening, the present invention further reduces external noise interference on the basis of the sealed cooperation between the probe 10 and the ear canal wall, thereby improving the signal-to-noise ratio of the reflected wave, so that otoacoustic emission detection can be performed without relying on a special soundproof room environment, ensuring the accuracy of the test results and clinical applicability.

[0056] The embodiments described above are merely examples of several implementations of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these modifications and improvements all fall within the scope of protection of this application.

Claims

1. An otoacoustic emission instrument, characterized by The ear canal detection probe is adapted to be inserted into the ear canal of a subject and to form a sealed fit with the ear canal wall, the ear canal detection probe comprising: an acoustic output unit for emitting an acoustic signal into the ear canal, and an acoustic input unit for receiving a reflected wave of the acoustic signal within the ear canal; The soundproof cover is arranged outside the ear canal detection probe and covers the ear canal detection probe and the ear canal opening to weaken noise and improve the signal-to-noise ratio of the reflected wave. The acoustic output unit comprises a micro-speaker for generating a click sound, a beep or a continuous sound of a specific frequency.

2. An ear sounder instrument according to claim 1, characterized in that The frequency range of the acoustic signal emitted by the acoustic output unit is 226Hz-8000Hz.

3. An ear sound generator according to claim 2, characterized in that The ear sound generator further comprises:

4. An ear sounder instrument according to claim 3, characterized in that a signal processing module for filtering, amplifying and noise suppressing the received reflected wave to generate detection data, a data transmission unit for sending the detection output to an external terminal for user clinical diagnosis.

5. The ear sound generator of claim 4, wherein the soundproof cover is provided with multiple layers of soundproofing material, the multiple layers of soundproofing material comprising: an outer sealing layer and an inner sound-absorbing layer, the outer sealing layer is used to fit the head of the subject to block environmental noise, and the inner sound-absorbing layer is used to attenuate residual noise to further improve the signal-to-noise ratio of the reflected wave. The method comprises the following steps:

6. An otoacoustic emission detection method characterized by, inserting the ear canal detection probe into the ear canal of a subject to form a sealed fit with the ear canal wall; emitting an acoustic signal into the ear canal through the acoustic output unit of the ear canal detection probe; receiving a reflected wave of the acoustic signal within the ear canal through the acoustic input unit of the ear canal detection probe; arranging a soundproof cover outside the ear canal detection probe to cover the ear canal detection probe and the ear canal opening to weaken noise and improve the signal-to-noise ratio of the reflected wave; generating detection data based on the reflected wave and using the detection data for clinical diagnosis. In the step of generating detection data based on the reflected wave and using the detection data for clinical diagnosis:

7. The otoacoustic emission detection method of claim 6, wherein, filtering, amplifying and noise suppressing the reflected wave received by the acoustic input unit to generate detection data, and sending the detection data to an external terminal for clinical diagnosis through a data transmission unit.

8. The ear sound emission detection method of claim 7, wherein the soundproof cover forms a wraparound closed structure by fitting the head of the subject, and the soundproof cover is provided with an outer sealing layer and an inner sound-absorbing layer, the outer sealing layer is used to fit the head of the subject to block environmental noise, and the inner sound-absorbing layer is used to attenuate residual noise to further improve the signal-to-noise ratio of the reflected wave. The computer program is stored in the memory and executed by the processor to make the processor execute the steps of the method of any one of claims 6 to 8.

9. A computer-readable storage medium, characterized in that, The computer program is stored in the memory and executed by the processor to make the processor execute the steps of the method of any one of claims 6 to 8.

10. A computer device, comprising: ​