A universal noise reduction probe for an otoacoustic emission instrument

Abstract

This utility model relates to a universal noise-reducing probe for an otoacoustic transmitter. The transmitter and receiver are housed within the probe body; an earplug portion is connected to the probe body and inserted into the ear canal, with a silicone ring on its outer circumference for sealing against the ear canal wall; a sound-absorbing noise-reducing cover, made of silicone, is fixed to the probe body and includes a cover body and an inner cavity within the cover body, where the transmitter and receiver are located; the outer circumference of the cover body has multiple noise-reducing protrusions; multiple sound guide tubes are included, with one end of some sound guide tubes connected to the transmitter and one end of others connected to the receiver, the other end of each sound guide tube passing through the cover body and entering the interior of the earplug portion, which communicates with the ear canal. By improving the mechanical structure of the noise-reducing probe, not only can the influence of external noise on in-ear detection be effectively blocked, but the ear canal can also be effectively sealed, ensuring that ear sound can only be transmitted back to the receiver through the sound guide tubes, preventing ear sound leakage.

Description

Technical Field

[0001] This utility model relates to a universal noise reduction probe for otoacoustic transmitters. Background Technology

[0002] Otoacoustic emission (OAE) testing is a non-invasive hearing testing device used to assess the function of the cochlea (especially the outer hair cells). Its core principle is to determine whether the cochlea is functioning normally by recording the "weak sound signals" (i.e., OAEs) actively generated by the cochlea in response to sound stimulation. It is an important tool for clinical hearing screening and diagnosis, especially suitable for infants, children, and special populations (such as those unable to cooperate with subjective hearing tests). It primarily uses simulation methods to study the properties and auditory mechanisms of OAEs, investigating the frequency selectivity, amplitude characteristics, and frequency delay characteristics of the cochlea through signal transmission and reception. It is used to screen for hearing impairments. Currently, external noise is primarily eliminated through algorithm optimization; however, with numerous external interference factors, the noise reduction effect of algorithm optimization is limited, and the device still needs to be used in a quiet room environment. Utility Model Content

[0003] The purpose of this invention is to provide a universal noise reduction probe for otoacoustic transmitters. By improving the mechanical structure of the noise reduction probe, it can not only effectively block the influence of external noise on in-ear detection, but also effectively seal the ear canal, ensuring that the ear sound can only be transmitted back to the receiver through the sound tube, thus preventing the ear sound from leaking out.

[0004] The technical solution of this utility model is as follows: A universal noise reduction probe for otoacoustic emission (OAE) devices includes: Probe body; The transmitter is housed within the probe itself; The receiver is housed within the probe itself; The earplug part is connected to the probe body and is used to insert into the ear canal. Its outer peripheral surface is provided with a silicone ring for sealing and engaging with the wall of the ear canal. The soundproof and noise-reducing cover is fixed to the probe body and is made of silicone material. It includes a cover body and an inner cavity inside the cover body. The transmitter and receiver are located in the inner cavity. The outer peripheral surface of the cover body is provided with multiple noise-reducing protrusions. There are multiple sound guide tubes. One end of one part of the sound guide tube is connected to the transmitter, and one end of another part of the sound guide tube is connected to the receiver. The other end of each sound guide tube passes through the cover and enters the interior of the earplug. The interior of the earplug communicates with the ear canal.

[0005] The beneficial effects of this technical solution are as follows: During use, the soundproof and noise-reducing enclosure can seal the transmitter and receiver inside its cavity, minimizing the impact of external noise on the transmitter and receiver. At the same time, it can ensure that the ear canal is not easily dissipated. The noise-reducing protrusions can better disperse and scatter external noise, making the noise energy less likely to concentrate in one place, but rather dispersed, and reflected or refracted back and forth between the noise-reducing protrusions to dissipate the noise energy. The dispersed noise is less likely to penetrate the enclosure and enter the enclosure. The sound canal allows the sound waves emitted by the transmitter to reach the ear canal directly through the sound canal, and the ear canal can also reach the receiver directly through the sound canal, thereby avoiding the dissipation of emitted sound waves and ear canal, and reducing the impact of external sounds on emitted sound waves and ear canal.

[0006] Based on the above solution, a further improvement is made as follows: multiple through-holes are evenly distributed on the noise-reducing protrusion. The function of evenly distributing through-holes on the noise-reducing protrusion is to further improve the noise reduction effect, because the setting of through-holes increases the difficulty for sound waves to pass through, increases the path of sound waves, thereby consuming more sound wave energy and achieving a better noise reduction effect.

[0007] Based on the above scheme, further improvements are made as follows: the noise reduction protrusion is hemispherical. The hemispherical outer surface facilitates the uniform refraction of sound waves in all directions, achieving a more even dispersion of sound waves and thus preventing sound wave energy from concentrating and penetrating the enclosure.

[0008] Based on the above scheme, further improvements are made as follows: the size and spacing of each noise reduction protrusion are different. This arrangement aims to make the sound wave reflection more chaotic, avoiding regular and localized concentration. A more chaotic reflection pattern can consume more sound wave energy.

[0009] Based on the above solution, further improvements are made as follows: the probe body is also equipped with a shell, which covers the outside of the sound insulation and noise reduction cover, and multiple noise reduction holes are set on the shell. The shell and the noise reduction holes further improve the noise reduction capability, as some energy can be consumed when sound waves pass through the noise reduction holes. Attached Figure Description

[0010] Figure 1 This is a front view structural schematic diagram of a specific embodiment of a universal noise reduction probe for an otoacoustic emission device according to the present invention; Figure 2 for Figure 1 A schematic diagram of the internal structure of the probe body in the image; Figure 3 This is the front view of the soundproofing and noise reduction enclosure; Figure 4 for Figure 1 Internal structure diagram; Figure 5 for Figure 4 A magnified view of point A in the image; In the diagram: 1-Probe body, 2-Transmitter, 3-Receiver, 4-Earplug, 41-Silicone ring, 5-Sound insulation and noise reduction cover, 51-Inner cavity, 52-Noise reduction protrusion, 521-Through micro-hole, 53-Perforation, 6-Sound guide tube, 7-Outer shell, 71-Noise reduction small hole. Detailed Implementation

[0011] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the present utility model and are not intended to limit the present utility model; that is, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The components of the embodiments of the present utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0012] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0013] It should be noted that relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0014] The features and performance of this utility model will be further described in detail below with reference to the embodiments.

[0015] A specific embodiment of this utility model of a universal noise reduction probe for otoacoustic emission devices is as follows: Figure 1-5 As shown, the general noise reduction probe for otoacoustic transmitters includes a probe body 1, a transmitter 2, a receiver 3, an earplug 4, a sound insulation and noise reduction cover 5, a sound guide tube 6, and a housing 7.

[0016] The rear end of the probe body 1 is one end of a connecting wire, which passes through the sound insulation and noise reduction cover 5 and connects to the transmitter 2 and the receiver 3. The transmitter 2 is located inside the probe body 1 and is used to emit sound waves for detection; the receiver 3 is located inside the probe body 1 and is used to receive ear sounds; the earplug part 4 is connected to the probe body 1 and is used to insert into the ear canal. Its outer circumference is provided with a silicone ring 41 for sealing and fitting with the wall of the ear canal. In this embodiment, there are three silicone rings 41, and their diameter decreases from the outside to the inside of the ear canal.

[0017] The soundproof noise reduction cover 5 is fixed to the probe body 1 and is made of silicone. It includes a cover body and an inner cavity 51 inside the cover body. The transmitter 2 and receiver 3 are located in the inner cavity 51. The outer circumferential surface of the cover body is provided with multiple noise reduction protrusions 52. Figure 5 As shown, multiple through-holes 521 are evenly distributed on the noise-reducing protrusion 52. The function of evenly distributing through-holes 521 on the noise-reducing protrusion 52 is to further improve the noise reduction effect, because the setting of through-holes 521 can increase the difficulty for sound waves to pass through, increase the path of sound waves, and thus consume more sound wave energy to achieve a better noise reduction effect. The noise-reducing protrusion 52 is hemispherical in shape. The outer surface of the hemispherical shape is more conducive to the uniform refraction of sound waves in all directions, which can achieve the purpose of dispersing sound waves more evenly, thereby avoiding the sound wave energy from concentrating and penetrating the cover. In other embodiments, the size and spacing of each noise-reducing protrusion 52 are different. This setting is to make the sound wave reflection more chaotic, avoiding the formation of regularity and local concentration. The more chaotic reflection mode can consume more sound wave energy. The probe body 1 is also provided with a shell 7, which covers the outside of the sound insulation and noise reduction cover 5. The shell 7 is provided with multiple noise-reducing holes 71. The housing 7 and the noise reduction holes 71 on it further enhance the noise reduction capability, as sound waves can consume some energy when passing through the noise reduction holes 71.

[0018] There are multiple sound guide tubes 6. One end of a portion of the sound guide tubes 6 is connected to the transmitter 2, and one end of another portion of the sound guide tubes 6 is connected to the receiver 3. The other end of each sound guide tube 6 passes through the cover and enters the interior of the earplug part 4, which communicates with the ear canal. In this embodiment, two sound guide tubes 6 are connected to the transmitter 2 and are arranged symmetrically; two sound guide tubes 6 are connected to the receiver 3 and are arranged symmetrically.

[0019] In use, the soundproof and noise-reducing cover 5 can seal the transmitter 2 and receiver 3 inside its cavity 51, minimizing the impact of external noise on the transmitter 2 and receiver 3. At the same time, it can ensure that the ear canal 6 does not easily escape. The noise reduction protrusions 52 can better disperse and scatter external noise, making the noise energy less likely to concentrate in one place, but dispersed, and reflected or refracted back and forth between the noise reduction protrusions 52 to consume the noise energy. The dispersed noise is less likely to penetrate the cover and enter the interior of the cover. The sound guide tube 6 allows the sound waves emitted by the transmitter 2 to reach the ear canal directly through the sound guide tube 6, and the ear canal 6 can also reach the receiver 3 directly through the sound guide tube 6, thereby avoiding the escape of emitted sound waves and ear canal, and reducing the impact of external sound on emitted sound waves and ear canal 6.

[0020] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. The patent protection scope of the present utility model shall be determined by the claims. Similarly, any equivalent structural changes made based on the description and drawings of the present utility model shall also be included within the protection scope of the present utility model.

Claims

1. A general-purpose noise-canceling probe for otoacoustic emitters, including: Probe body; The transmitter is housed within the probe itself; The receiver is housed within the probe itself; The earplug part is connected to the probe body and is used to insert into the ear canal. Its outer peripheral surface is provided with a silicone ring for sealing and engaging with the wall of the ear canal. Its characteristic is that it further includes: The soundproof and noise-reducing cover is fixed to the probe body and is made of silicone material. It includes a cover body and an inner cavity inside the cover body. The transmitter and receiver are located in the inner cavity. The outer peripheral surface of the cover body is provided with multiple noise-reducing protrusions. There are multiple sound guide tubes. One end of one part of the sound guide tube is connected to the transmitter, and one end of another part of the sound guide tube is connected to the receiver. The other end of each sound guide tube passes through the cover and enters the interior of the earplug. The interior of the earplug communicates with the ear canal.

2. The universal noise-reducing probe for otoacoustic emitters according to claim 1, characterized in that, The noise reduction protrusion has multiple through-holes evenly distributed on it.

3. The universal noise-reducing probe for otoacoustic emitters according to claim 1, characterized in that, The noise reduction protrusion is hemispherical in shape.

4. The universal noise-reducing probe for otoacoustic emitters according to claim 1, characterized in that, The size and spacing of each noise reduction bump are different.

5. The universal noise-reducing probe for an otoacoustic emission device according to claim 1, characterized in that, The probe body is also equipped with a housing, which is placed outside the sound insulation and noise reduction cover. The housing has multiple noise reduction holes.

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