An otoacoustic emission test probe

Abstract

The utility model relates to an ear sound emission test probe, including probe main part, probe main part is mainly by the front end of shell, sound unit and receiving sensor and is composed, the bottom of front end of shell is provided with the mounting groove, receiving sensor is screw -threaded connection in the top of mounting groove, and sound unit is connected in the bottom of mounting groove through the support, probe signal connecting line, its setting in the bottom of probe main part is used for transmission signal. The utility model relates to the technical field of test probe. The ear sound emission test probe, through with sound unit and receiving sensor integration in probe main part, can be used for reducing the volume of test probe, makes test probe adopt single sound unit composite frequency sound emission form to carry out sound transmission, effectively avoids the interference signal of traditional mix sound and can effectively improve test precision, and small -size test probe can also be more favorable to the ear canal test of newborn.

Description

Technical Field

[0001] This utility model relates to the technical field of test probes, and in particular to an otoacoustic emission test probe. Background Technology

[0002] Otoacoustic emission (OAE) testing probes typically consist of two main parts: a transmitter and a microphone. The transmitter emits sound waves into the ear canal, while the microphone receives the sound signals reflected back from within the ear canal. During OAE testing, the probe is placed inside the subject's ear canal. The testing process is usually non-invasive and does not require active feedback from the subject. The testing equipment automatically records and analyzes the returned sound signals to determine the functional status of the outer hair cells.

[0003] In existing technologies, DPOAE is an important tool for newborn hearing screening, capable of quickly detecting cochlear function and helping to detect hearing impairment early. Traditional probes use dual sound units, and the sound is mixed during transmission before entering the ear canal for testing. This method generates mixing during testing, interfering with the signal and affecting the accuracy of the test. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an otoacoustic emission test probe in order to solve the technical problems mentioned in the background art.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0006] An otoacoustic emission test probe includes a probe body, which is mainly composed of a front end of a housing, a sound-emitting unit, and a receiving sensor. A mounting groove is provided at the bottom of the front end of the housing, the receiving sensor is threadedly connected to the top of the mounting groove, and the sound-emitting unit is connected to the bottom of the mounting groove via a bracket.

[0007] The probe signal connection cable is located at the bottom of the probe body and is used to transmit signals;

[0008] The sound filter tube is connected to the top of the probe body. The sound filter tube is mainly composed of an inner tube and an outer tube. The inner tube is fitted on the top of the receiving sensor, and the outer tube is inserted into the top of the front end of the outer shell. A honeycomb connecting plate is set between the inner tube and the outer tube to form a sound-emitting space between the inner tube and the outer tube.

[0009] Furthermore, the probe signal connection cable includes a rear end of the housing, a probe signal line, and a signal conversion board. The rear end of the housing is threaded to the bottom of the front end of the housing. The probe signal line is inserted into the bottom of the rear end of the housing, and one end of the probe signal line extending into the rear end of the housing is connected to the signal conversion board.

[0010] Furthermore, a wire harness tail is connected to the bottom of the rear end of the housing, and the wire harness tail is fitted onto the outer wall of the probe signal line.

[0011] Furthermore, the outer wall of the receiving sensor is machined with multiple facets, so that a second sound-emitting space, which is connected to the first sound-emitting space, is left between the receiving sensor and the mounting groove.

[0012] Furthermore, a sound-emitting port is provided through the middle of the bracket, and the diameter of the sound-emitting port gradually increases from bottom to top so that the top of the sound-emitting port is horn-shaped.

[0013] Furthermore, the bracket has two openings spaced apart on the outer side of the sound-emitting port, and the signal line of the receiving sensor is connected to the signal conversion board through one of the openings.

[0014] In summary, this utility model has at least one of the following beneficial technical effects:

[0015] 1. This otoacoustic emission test probe integrates the sound-emitting unit and the receiving sensor into the probe body, which can reduce the size of the test probe and enable the test probe to transmit sound in a single sound-emitting unit composite frequency form. This effectively avoids the interference signal caused by traditional mixing and can effectively improve the test accuracy. At the same time, the small size of the test probe is also more conducive to ear canal testing of newborns.

[0016] 2. This otoacoustic emission test probe, through the setting of a filter tube, can distinguish and isolate the output signal and the input signal through the layered structure of the inner tube and the outer tube, so as to avoid the formation of a sound receiving loop at the front end of the probe during transmission, which would affect the accuracy of signal processing. At the same time, the honeycomb connecting plate between the inner tube and the outer tube can effectively prevent amniotic fluid and foreign objects from flowing back and clogging the front end of the probe or flowing into the rear end and damaging the sensor, thereby improving the service life of the test probe. Attached Figure Description

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

[0018] Figure 1 This is a schematic diagram of the structure of an otoacoustic emission test probe according to the present invention.

[0019] Figure 2 This is a schematic diagram of the internal structure of an otoacoustic emission test probe according to the present invention.

[0020] Figure 3This is a schematic diagram of the upward angle structure of the sound-emitting unit in an otoacoustic emission test probe according to the present invention.

[0021] Figure 4 This is a schematic diagram of the sound filter tube in an otoacoustic emission test probe according to the present invention.

[0022] In the diagram, 1. Probe body; 11. Front end of housing; 12. Sound-emitting unit; 13. Receiving sensor; 2. Probe signal connection cable; 21. Rear end of housing; 22. Probe signal cable; 23. Signal conversion board; 24. Cable bundle tail; 3. Filter tube; 31. Inner tube; 32. Outer tube; 33. Honeycomb connecting plate; 4. Mounting slot; 5. Bracket; 6. Cross-section; 7. Sound outlet; 8. Opening. Detailed Implementation

[0023] The present invention will be further described in detail below with reference to the accompanying drawings. Example

[0024] Reference Figure 1 - Figure 4 The present invention discloses an otoacoustic emission test probe, which includes a probe body 1. The probe body 1 is mainly composed of a front end of the outer shell 11, a sound-emitting unit 12 and a receiving sensor 13. A mounting groove 4 is provided at the bottom of the front end of the outer shell 11. The receiving sensor 13 is threadedly connected to the top of the mounting groove 4. The sound-emitting unit 12 is connected to the bottom of the mounting groove 4 through a bracket 5.

[0025] The probe signal connection line 2 is located at the bottom of the probe body 1 and is used to transmit signals;

[0026] The sound filter tube 3 is connected to the top of the probe body. The sound filter tube 3 is mainly composed of an inner tube 31 and an outer tube 32. The inner tube 31 is sleeved on the top of the receiving sensor 13, and the outer tube 32 is inserted into the top of the front end 11 of the outer shell. A honeycomb connecting plate 33 is provided between the inner tube 31 and the outer tube 32, so that a sound-emitting space is formed between the inner tube 31 and the outer tube 32.

[0027] In this embodiment, observation Figure 1 and Figure 2 It can be observed that by setting up a probe body 1, which is mainly composed of a front end shell 11, a sound-emitting unit 12, and a receiving sensor 13, a mounting groove 4 is provided at the bottom of the front end shell 11. The receiving sensor 13 is threadedly connected to the top of the mounting groove 4, and the sound-emitting unit 12 is connected to the bottom of the mounting groove 4 through a bracket 5. At the same time, a probe signal connection line 2 is connected to the bottom of the probe body 1, which can make the test probe emit sound waves of a specific frequency to stimulate the outer hair cells in the cochlea. Subsequently, the receiving sensor 13 receives the otoacoustic emission signal generated by the outer hair cells and transmits it to the test equipment for analysis through the probe signal connection line 2 to achieve newborn hearing screening.

[0028] At the same time, further observation Figure 2 It can be seen that this design, which integrates the sound-generating unit 12 with the receiving sensor 13, effectively reduces the size of the test probe, making the test probe more suitable for newborn testing.

[0029] Because amniotic fluid and foreign objects are often present in the ear canal of newborns in the early stages, in order to prevent amniotic fluid and foreign objects from flowing back and clogging the front end of the probe or flowing into the back end and damaging the sensor, Figure 2 As can be seen, a sound filter tube 3 is inserted into the top of the probe body 1. The sound filter tube 3 is mainly composed of an inner tube 31 and an outer tube 32. The inner tube 31 is sleeved on the top of the receiving sensor 13, and the outer tube 32 is inserted into the top of the front end 11 of the outer shell. A honeycomb connecting plate 33 is provided between the inner tube 31 and the outer tube 32, so that a sound-emitting space 1 is formed between the inner tube 31 and the outer tube 32. When the test probe is in use, the sound-emitting unit 12 transmits sound waves through the sound-emitting space 1, while the feedback signal generated by the outer hair cells will pass through the inner tube 31, so that the echo comes into contact with the receiving sensor 13. This can effectively distinguish and isolate the output signal and the input signal, and avoid the formation of a sound receiving loop at the front end of the probe during transmission, which would affect the accuracy of signal processing, thereby effectively improving the test accuracy.

[0030] Meanwhile, the honeycomb connecting plate 33 can effectively prevent amniotic fluid and foreign objects from flowing back and clogging the front end of the probe or flowing into the rear end and damaging the sensor. At the same time, the plug-in connection of the sound filter tube 3 allows it to be directly removed and replaced when the hole is too dirty or cannot be cleaned, which is convenient, quick and efficient.

[0031] In a further preferred embodiment of this utility model, such as Figure 2 As shown, the probe signal connection line 2 includes a housing rear end 21, a probe signal line 22, and a signal conversion board 23. The housing rear end 21 is threaded to the bottom of the housing front end 11. The probe signal line 22 is inserted into the bottom of the housing rear end 21. One end of the probe signal line 22 that extends into the housing rear end 21 is connected to the signal conversion board 23.

[0032] The bottom of the rear end 21 of the housing is connected to a wire mesh tail 24, which is sleeved on the outer wall of the probe signal line 22.

[0033] In this embodiment, the probe signal connection line is mainly composed of the rear end of the housing 21, the probe signal line 22, and the signal conversion board 23. The rear end of the housing 21 is threaded to the bottom of the front end of the housing 11. The probe signal line 22 is inserted into the bottom of the rear end of the housing 21. One end of the probe signal line 22 that extends into the rear end of the housing 21 is connected to the signal conversion board 23. This allows for the efficient transmission of the newborn's ear canal test data to the device for analysis.

[0034] By connecting a wire harness tail 24 to the bottom of the rear end 21 of the housing, and wrapping the wire harness tail 24 around the outer wall of the probe signal line 22, the probe signal line 22 can be protected to prevent damage to the probe signal line 22 and thus affect the use of the test probe.

[0035] In a further preferred embodiment of this utility model, such as Figure 2 and Figure 3 As shown, the outer wall of the receiving sensor 13 is processed with multiple cut surfaces 6, so that a second sound-emitting space communicating with the first sound-emitting space is left between the receiving sensor 13 and the mounting groove 4.

[0036] The support 5 has a sound outlet 7 through the middle, and the diameter of the sound outlet 7 gradually increases from bottom to top so that the top of the sound outlet 7 is horn-shaped.

[0037] The bracket 5 has two openings 8 spaced apart on the outer side of the sound outlet 7, and the signal line of the receiving sensor 13 is connected to the signal conversion board 23 through one of the openings 8.

[0038] In this embodiment, since the receiving sensor 13 is located above the sound-emitting unit 12, the sound waves emitted by the sound-emitting unit 12 are blocked by the receiving sensor 13, affecting the ear canal test.

[0039] Therefore, observe Figure 2 It can be observed that the outer wall of the receiving sensor 13 is machined with multiple cut surfaces 6, so that a second sound-emitting space connected to the first sound-emitting space is left between the receiving sensor 13 and the mounting groove 4, which can effectively improve the accuracy of ear canal testing.

[0040] Subsequently combined Figure 3 It can be observed that, Figure 3 This is a schematic diagram of the sound-generating unit 12 from an upward angle. Two openings 8 are spaced apart on the bracket 5 at the position outside the sound-generating port 7. The signal line of the receiving sensor 13 is connected to the signal conversion board 23 through one of the openings 8, which can improve the signal accuracy of the receiving sensor 13. The other opening 8 serves as an acoustic feedback via, which can be used to avoid the sound-generating unit 12 and the receiving sensor 13 from being integrated together and producing a sharp howl, further improving the practicality of the test probe.

[0041] At the same time, further observation Figure 2 It can be seen that the middle of the support 5 has a sound outlet 7, and the diameter of the sound outlet 7 is gradually increased from bottom to top so that the top of the sound outlet 7 is horn-shaped. This can be used to optimize the guidance of sound waves, improve energy transfer efficiency, improve frequency response and reduce distortion, thereby further improving the accuracy of ear canal testing.

[0042] The implementation principle of the above embodiment is as follows: the sound filter tube 3 at the top of the test probe is brought close to the newborn's ear canal, and then the sound-emitting unit 12 emits a sound wave signal. After the sound wave enters the ear canal, it will reflect an echo signal. Finally, the echo signal will be transmitted to the receiving sensor 13 through the inner tube 31 of the sound filter tube 3. Finally, the receiving sensor 13 feeds the signal back to the machine through the probe signal connection line 2 to realize the detection of the newborn's ear canal.

[0043] The embodiments described herein are preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.

Claims

1. An otoacoustic emission (OAE) testing probe, characterized in that, It includes a probe body (1), which is mainly composed of a front end of the outer shell (11), a sound-emitting unit (12) and a receiving sensor (13). The bottom of the front end of the outer shell (11) is provided with a mounting groove (4). The receiving sensor (13) is threadedly connected to the top of the mounting groove (4). The sound-emitting unit (12) is connected to the bottom of the mounting groove (4) through a bracket (5). The probe signal connection line (2) is located at the bottom of the probe body (1) and is used to transmit signals; The sound filter tube (3) is connected to the top of the probe body. The sound filter tube (3) is mainly composed of an inner tube (31) and an outer tube (32). The inner tube (31) is fitted on the top of the receiving sensor (13), and the outer tube (32) is inserted into the top of the front end (11) of the outer shell. A honeycomb connecting plate (33) is provided between the inner tube (31) and the outer tube (32) so that a sound-emitting space is formed between the inner tube (31) and the outer tube (32).

2. The otoacoustic emission testing probe according to claim 1, characterized in that, The probe signal connection line (2) includes a housing rear end (21), a probe signal line (22) and a signal conversion board (23). The housing rear end (21) is threaded to the bottom of the housing front end (11). The probe signal line (22) is inserted into the bottom of the housing rear end (21). One end of the probe signal line (22) that extends into the housing rear end (21) is connected to the signal conversion board (23).

3. The otoacoustic emission testing probe according to claim 2, characterized in that, The bottom of the rear end (21) of the housing is connected to a wire mesh tail (24), which is fitted onto the outer wall of the probe signal line (22).

4. The otoacoustic emission testing probe according to claim 3, characterized in that, The outer wall of the receiving sensor (13) is processed with multiple cut surfaces (6), so that a second sound-emitting space connected to the first sound-emitting space is left between the receiving sensor (13) and the mounting groove (4).

5. The otoacoustic emission testing probe according to claim 4, characterized in that, The support (5) has a sound-emitting port (7) through the middle. The diameter of the sound-emitting port (7) gradually increases from bottom to top so that the top of the sound-emitting port (7) is horn-shaped.

6. The otoacoustic emission testing probe according to claim 5, characterized in that, The bracket (5) has two openings (8) spaced apart on the outer side of the sound-emitting port (7), and the signal line of the receiving sensor (13) is connected to the signal conversion board (23) through one of the openings (8).

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