Middle ear analyzer

Abstract

The utility model relates to the technical field of acoustic impedance testing devices, in particular to a middle ear analyzer which comprises a bottom plate and a shell covering the bottom plate, the front side of the shell is inclined and is provided with a display screen panel in an embedded mode, knobs are arranged on the two sides of the shell respectively, and a main board, an air pump driving board and an air pump assembly are arranged on the bottom plate and located in the shell respectively. A connector is further arranged on the side face of the bottom plate, the display screen panel is electrically connected with the mainboard, the two rotary knobs are electrically connected with the air pump driving plate and the connector through encoders respectively, the air pump assembly is electrically connected with the mainboard through the air pump driving plate, and the connector is electrically connected with the mainboard. The acoustic impedance testing device is compact in structure and reasonable in arrangement, various functional operations of the acoustic impedance testing device during acoustic impedance testing are controlled by additionally arranging the knob and combining with the display screen panel, and the air pump assembly is additionally controlled by the air pump driving plate and is connected with the in-ear probe by combining with the connector, so that the main board can control various functions more conveniently and reasonably.

Description

Technical Field

[0001] The utility model relates to the technical field of acoustic impedance testing devices, in particular to a middle ear analyzer. Background Art

[0002] The human middle ear is an impedance matching device. If there are lesions in the conduction pathway of mechanical waves, such as effusion in the middle ear cavity, lesions in the ossicular chain, or neoplasms that change the impedance matching performance and hinder the effective conduction of mechanical waves, conductive hearing loss will occur. The purpose of acoustic impedance testing is to analyze the condition of the middle ear. Acoustic impedance refers to the absorption of sound in the medium, which is equal to the ratio of the interface pressure to the sound flux (particle flow velocity or body velocity multiplied by the area) passing through the surface. The middle ear analyzer is a commonly used acoustic impedance testing device of this type. Its function is to understand and diagnose middle ear inflammation, Eustachian tube function, and stapedius muscle reflex. It is generally used to distinguish between conductive hearing loss and mixed hearing loss.

[0003] In the current middle ear analyzer equipment, in order to set the control program more accurately and directly, redundant control steps are usually simplified, and at the same time, they can be integrated into a smaller structure. As a result, the existing equipment of this type generally only has the main control circuit board for data processing and display, and other functions such as air pressure output, sound wave generation and reception are achieved by connecting precision probes to achieve the corresponding acoustic impedance test function. Therefore, the middle ear analyzer itself has relatively few selectable functions. If you want to expand the adjustability of certain functions or add some available functions on the original basis, combining with the existing structure also requires a reasonable layout and additional control programs. If all rely on the touch screen to give feedback and output to the main control circuit board, it is easy to cause undesirable situations such as jamming and signal errors. Utility Model Content

[0004] In order to solve the problems existing in the above-mentioned prior art, the utility model aims to provide a middle ear analyzer. The utility model has a compact structure and a reasonable layout. By adding a knob and combining with a display panel, the various functions of the device when performing acoustic impedance testing are controlled. The air pump component is also additionally controlled by an air pump drive board, and combined with a connector to connect with an in-ear probe, the mainboard controls various functions more conveniently and reasonably.

[0005] The utility model discloses a middle ear analyzer, comprising a base plate and a shell covered on the base plate, the front side of the shell is inclined and embedded with a display screen panel, knobs are respectively provided on both sides of the shell, a main board, an air pump drive board and an air pump assembly are respectively provided on the base plate and inside the shell, a connector is also provided on the side of the base plate, the display screen panel is electrically connected to the main board, the two knobs are respectively electrically connected to the air pump drive board and the connector through an encoder, the air pump assembly is electrically connected to the main board through the air pump drive board, and the connector is electrically connected to the main board.

[0006] In one of the embodiments, brackets are provided on both sides corresponding to the middle of the shell, and the brackets are embedded between the bottom plate and the shell, and the brackets are used to fix the encoder and rotatably connect the knob.

[0007] In one embodiment, the main board is mounted on the base plate, the air pump driving board is mounted on the main board, and the air pump assembly is located beside the main board.

[0008] In one of the embodiments, a bottom cover is provided at the bottom of the base plate corresponding to the air pump assembly, and the bottom cover is detachably connected to the base plate and the air pump assembly respectively by screws.

[0009] In one of the embodiments, the inner side surfaces of the bottom plate and the bottom cover are both provided with grid-shaped protrusions.

[0010] In one embodiment, the shell is in an inverted V shape as a whole and has smooth transitions at the corners. A flip cover is provided on the rear side of the shell, and a printer is provided inside the shell corresponding to the flip cover. The printer is electrically connected to the mainboard.

[0011] In one embodiment, first positioning columns are provided at two corners and both sides of the middle of the rear side of the base plate, three second positioning columns are evenly arranged on the front side of the base plate, reinforcing ribs are provided on the sides of the first positioning columns, and the outer shell is respectively adapted to the first positioning columns and the second positioning columns.

[0012] Compared with the prior art, the beneficial effects of the technical solution of the utility model are:

[0013] The utility model has a compact structure and a reasonable layout. By adding a knob and combining with a display panel, various functional operations of the device when performing acoustic impedance testing are controlled. The air pump component is also additionally controlled by an air pump drive board, which is combined with a connector and connected to an in-ear probe, making the mainboard's control of various functions more convenient and reasonable. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of a middle ear analyzer of the utility model;

[0015] Figure 2 It is a side sectional view of a middle ear analyzer of the utility model;

[0016] Figure 3 It is a partial exploded diagram of a middle ear analyzer of the utility model;

[0017] Figure 4 The utility model is a structural schematic diagram of a bottom plate part of a middle ear analyzer.

[0018] Explanation of the reference numerals: 1-base plate, 2-housing, 3-display panel, 4-knob, 5-encoder, 6-main board, 7-air pump drive board, 8-air pump assembly, 9-connector, 10-bracket, 11-bottom cover, 12-flip cover, 13-first positioning column, 14-second positioning column. DETAILED DESCRIPTION

[0019] The drawings are only used for illustrative purposes and should not be construed as limitations on this patent. In order to better illustrate this embodiment, some parts of the drawings may be omitted, enlarged, or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, which can be said to be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The technical solution of the present invention is further explained below in conjunction with the accompanying drawings and embodiments.

[0021] like Figure 1-Figure 4As shown, a middle ear analyzer of the utility model comprises a base plate 1 and a shell 2 covered on the base plate 1, the front side of the shell 2 is inclined and embedded with a display panel 3, knobs 4 are respectively provided on both sides of the shell 2, a main board 6, an air pump drive board 7 and an air pump assembly 8 are respectively provided on the base plate 1 and located inside the shell 2, a connector 9 is also provided on the side of the base plate 1, the display panel 3 is electrically connected to the main board 6, the two knobs 4 are respectively electrically connected to the air pump drive board 7 and the connector 9 through an encoder 5, the air pump assembly 8 is electrically connected to the main board 6 through the air pump drive board 7, and the connector 9 is electrically connected to the main board 6. The utility model has a compact structure and a reasonable arrangement. By adding a knob 4 and combining with the display panel 3, the various functional operations of the device when performing acoustic impedance testing are controlled. The air pump assembly 8 is also additionally controlled through the air pump drive board 7, and combined with the connector 9 to connect to the in-ear probe, the main board's control of various functions is more convenient and reasonable. The device mainly controls the operation of each function through the main board 6. First, the display panel 3 is used as the human-computer interaction component for the user to input signals, and a conventional touch screen is used to cooperate with buttons to select the appropriate test function; during the test, the air pump assembly 8 will be connected to the trachea on the probe to stabilize the air pressure inside the middle ear. According to different usage conditions, one of the knobs 4 can output the electrical signal converted by the encoder 5 to the air pump drive board 7 when it is rotated, and then the air pump drive board 7 controls the air pressure output of the air pump assembly 8 after processing in combination with the feedback signal of the main board 6; and the connector 9 will also be connected to the sound wave generator and the collector on the probe, so the other knob 4 is the output signal converted into an electrical signal by its encoder 5, which controls the voltage at the connector 9, thereby adjusting the size of the sound wave to adapt to the acoustic impedance test of different users.

[0022] In one embodiment, the two knobs 4 can be directly rotatably connected to the housing 2, or brackets 10 can be provided on both sides of the middle of the corresponding housing 2, the brackets 10 are embedded between the bottom plate 1 and the housing 2, and the brackets 10 are used to fix the encoder 5 and rotatably connect the knobs 4. The knobs 4 and the encoder 5 are independent of the bottom plate 1 and the housing 2 through the installation of the brackets 10, so that when the device is installed as a whole or subsequently repaired and parts are replaced, the knobs 4 and the encoder 5 can be connected as a whole through the brackets 10, so that the encoder 5 recognizes that the rotation of the knobs 4 is not easily affected by external installation misalignment, etc., and it is also convenient for modular assembly and disassembly of various components of the entire middle ear analyzer.

[0023] In one embodiment, the main board 6 is mounted on the bottom plate 1, the air pump driving board 7 is mounted on the main board 6, and the air pump assembly 8 is located beside the main board 6. In order to reduce the information processing task of the main board 6, the air pump assembly 8 realizes various operations through the air pump driving board 7, such as the air pressure adjustment and timer of the above-mentioned knob 4, etc. When installed, for better heat dissipation, the main board 6 and the bottom plate 1 are left with space, the air pump driving board 7 occupies a small area, and is therefore located above the main board 6 and leaves space with the main board 6, and the air pump assembly 8 is located on one side to avoid affecting its operation.

[0024] Furthermore, a bottom cover 11 is provided at the bottom of the base plate 1 corresponding to the air pump assembly 8, and the bottom cover 11 is detachably connected to the base plate 1 and the air pump assembly 8 by screws. Since the air pump assembly 8 is an important part in the middle ear analyzer, it often needs to be repaired or replaced. Therefore, the bottom cover 11 is directly connected to the bottom of the air pump assembly 8, and then the bottom cover 11 is fixed to the base plate 1, so that the positioning of the air pump assembly 8 can be facilitated. When disassembling, the air pump assembly 8 can also be removed synchronously through the bottom cover 11, without removing the upper shell 2 to find the air pump assembly 8. In addition, the inner side surfaces of the base plate 1 and the bottom cover 11 are provided with grid-shaped protrusions. In order to prevent the screws at the four corners of the main board 6 from falling off, even if the main board 6 and the air pump assembly 8 directly contact the base plate 1 and the bottom cover 11, there are grid-shaped protrusions to support, so as to leave a certain space for heat dissipation, avoid local heating and fusing, and at the same time, the grid-shaped protrusions can also have a certain effect of strengthening the hardness of the base plate 1 and the bottom cover 11.

[0025] In one embodiment, the housing 2 is in an inverted V shape with a smooth transition at the corners. A flip cover 12 is provided at the rear side of the housing 2. A printer is also provided inside the housing 2 corresponding to the flip cover 12. The printer is electrically connected to the main board 6. The bottom plate 1 and the housing 2 are actually designed with rounded corners. The specific shape of the housing 2, such as Figure 1 and Figure 3 As shown, two inclined side surfaces can be formed on the top, one is for the installation and convenient use of the display panel 3, and the other is to cooperate with the setting of the flip cover 12. The internal space can be used to install a printer, and the data of each acoustic impedance test can not only be displayed to the user through the display panel 3, but also can be recorded on paper through the small printer.

[0026] In addition, due to the special shape, in order to ensure the stable installation of the bottom plate 1 and the shell 2, the first positioning columns 13 are provided at the two corners and both sides of the middle of the rear side of the bottom plate 1, and three second positioning columns 14 are evenly arranged on the front side of the bottom plate 1. The side of the first positioning column 13 is provided with reinforcing ribs, and the shell 2 is respectively adapted to the first positioning column 13 and the second positioning column 14. The first positioning column 13 and the second positioning column 14 are actually installed in combination with the hole-shaft matching method, and the first positioning column 13 is relatively long due to the position relationship, and reinforcing ribs need to be added to ensure that it is not easy to break. The second positioning column 14 is located at a position where the bottom plate 1 and the front side of the shell 2 are easy to combine, and the shell 2 can also be opened from here when disassembling.

[0027] In the description of the present application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present application.

[0028] In the figure, the description of the positional relationship is only for illustrative purposes and cannot be understood as a limitation of this patent; obviously, the above embodiments of the utility model are only examples for clearly illustrating the utility model, and are not limitations on the implementation methods of the utility model. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made on the basis of the above description. It is not necessary and impossible to list all the implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the utility model should be included in the scope of protection of the claims of the utility model.

Claims

1. A middle ear analyzer, characterized in that: The invention comprises a base plate (1) and a shell (2) which is covered on the base plate (1); the front side of the shell (2) is inclined and embedded with a display screen panel (3); knobs (4) are respectively provided on both sides of the shell (2); a main board (6), an air pump drive board (7) and an air pump assembly (8) are respectively provided on the base plate (1) and inside the shell (2); a connector (9) is also provided on the side of the base plate (1); the display screen panel (3) is electrically connected to the main board (6); the two knobs (4) are respectively electrically connected to the air pump drive board (7) and the connector (9) through an encoder (5); the air pump assembly (8) is electrically connected to the main board (6) through the air pump drive board (7); and the connector (9) is electrically connected to the main board (6).

2. A middle ear analyzer according to claim 1, characterized in that: Brackets (10) are provided on both sides corresponding to the middle of the shell (2); the brackets (10) are embedded between the base plate (1) and the shell (2); the brackets (10) are used to fixedly connect the encoder (5) and to rotatably connect the knob (4).

3. A middle ear analyzer according to claim 1 or 2, characterized in that: The main board (6) is mounted on the bottom board (1), the air pump driving board (7) is mounted on the main board (6), and the air pump assembly (8) is located beside the main board (6).

4. A middle ear analyzer according to claim 3, characterized in that: A bottom cover (11) is provided at the bottom of the base plate (1) corresponding to the air pump assembly (8), and the bottom cover (11) is detachably connected to the base plate (1) and the air pump assembly (8) respectively by screws.

5. A middle ear analyzer according to claim 4, characterized in that: The inner sides of the bottom plate (1) and the bottom cover (11) are both provided with grid-shaped protrusions.

6. A middle ear analyzer according to claim 2 or 5, characterized in that: The shell (2) is in an inverted V-shape as a whole and has a smooth transition at the corners. A flip cover (12) is provided on the rear side of the shell (2). A printer is also provided inside the shell (2) at a position corresponding to the flip cover (12). The printer is electrically connected to the main board (6).

7. A middle ear analyzer according to claim 6, characterized in that: First positioning columns (13) are provided at two corners of the rear side and both sides of the middle part of the base plate (1), three second positioning columns (14) are evenly arranged on the front side of the base plate (1), and reinforcing ribs are provided on the side surfaces of the first positioning columns (13), and the housing (2) is respectively adapted to the first positioning columns (13) and the second positioning columns (14).

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