Ear canal ventilation device

Abstract

The utility model discloses an ear canal ventilation device, and belongs to the technical field of medical instruments. The ear canal ventilation device can comprise a device body, a drainage exchange tube and a ventilation tube. The ventilation pipe can stably work through the first channel structure. When the ear canal ventilation device is in the working state, one end of the ventilation pipe can be located at the junction of the external auditory canal and the auricle and used for transmitting air, and the bad situation that the ear canal of a patient is damaged due to the fact that the in-ear pressure is too high is avoided. And the drainage exchange tube can stably work through the second channel structure. When the auditory meatus ventilation device is in a working state, the drainage exchange tube can be well fixedly connected with the device body through the exchange tube body, and in addition, an operator can ensure that when the auditory meatus ventilation device is in the working state, the auditory meatus ventilation device is not in the working state by inserting the exchange tube end of the drainage exchange tube into a tympanic membrane incision. The drainage exchange tube can well discharge effusion in the middle ear cavity through the end head structure.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and in particular to an ear canal ventilation device. Background Art

[0002] The location of the middle ear refers to the air-filled cavity behind the eardrum; the middle ear contains structures such as the eardrum, ossicles, and Eustachian tube, and their main function is to conduct sound. Under normal circumstances, the middle ear cavity is filled with air, but when secretory otitis media occurs, the middle ear cavity will be filled with fluid.

[0003] Tympanostomy tube placement is a treatment method used to treat intractable secretory otitis media. Tympanostomy tube placement is performed under general anesthesia, under a microscope or an otoscope, with a myringotomy knife. A small incision is first made in the tense part of the tympanic membrane, and then the liquid in the tympanic cavity is sucked out with a negative pressure aspirator. The tympanic tube placement device is then used to place the tympanic ventilation tube at the rupture in the tympanic membrane. The tympanic ventilation tube is stuck in the rupture in the tympanic membrane, and the inside and outside of the tympanic cavity are connected, and the pressure is balanced. The traditional middle ear drainage ventilator is prone to blockage, is not easy to remove the tympanic cavity fluid after the tube is placed, and is easy to shake and not firm after installation.

[0004] The patent with publication number CN212067313U discloses a middle ear ventilation tube, comprising an outer tube and an inner tube, the outer tube being sleeved on the outside of the inner tube, one end of the outer tube being provided with a bell-shaped mouth and curled outward, the bell-shaped mouth being provided with a limiting mechanism, the limiting mechanism comprising a mounting block and a long strip of limiting plate, a side of the mounting block facing the inner tube being provided with a groove, the limiting plate being arranged in the groove, the end of the limiting plate away from the inner tube being connected to the groove wall of the groove through a spring, a through hole being opened on the top of the mounting block, a lever passing through the through hole being provided on the top surface of the limiting plate, a limiting ring being provided on the outer wall of the end of the inner tube facing the bell-shaped mouth, the limiting ring being arranged between the limiting plate and the bell-shaped mouth.

[0005] The utility model requires a larger tympanic membrane incision, and the tympanic membrane incision is an irreparable injury. Utility Model Content

[0006] The present application provides an ear canal ventilation device, including a device body, a drainage exchange tube and a ventilation tube:

[0007] The device body has a first channel structure and a second channel structure, the first channel structure and the second channel structure are arranged along the first direction, the length of the first channel structure is equal to two-thirds of the second channel structure, and one end of the first channel structure is aligned with the second channel structure, and the other end is staggered;

[0008] The ventilation pipe is located in the first channel structure, and the outer wall of the ventilation pipe is in contact with the inner wall of the first channel structure, and the length of the ventilation pipe is equal to the length of the first channel structure;

[0009] The drainage exchange tube is located in the second channel structure, and the outer wall of the drainage exchange tube is in contact with the inner wall of the second channel structure, and the length of the drainage exchange tube is equal to the length of the second channel structure;

[0010] The drainage exchange tube comprises: an exchange tube body and an exchange tube end, one end of the exchange tube end is fixedly connected to the exchange tube body, and the other end of the exchange tube end is configured to be inserted into the tympanic membrane incision when the ear canal ventilation device is in use;

[0011] The projection of the first channel structure on the second channel structure is located inside the second channel structure, and the portion of the second channel structure not covering the projection of the first channel structure has a first airflow exchange hole,

[0012] The drainage exchange tube has a second airflow exchange hole communicating with the first airflow exchange hole;

[0013] The first direction is the thickness direction of the ear canal ventilation device when it is in use.

[0014] Optionally, an inclined surface structure is formed at one end of the first channel structure that is aligned with the second channel structure.

[0015] Optionally, the cross-section of the end of the ventilation tube close to the eardrum is inclined to enhance the air exchange rate.

[0016] Optionally, the end of the exchange tube end facing away from the exchange tube body is a truncated cone structure.

[0017] Optionally, the end of the exchange tube end facing away from the exchange tube body is an arc-shaped protrusion structure.

[0018] Optionally, the ear canal ventilation device further comprises: a filling structure;

[0019] The filling structure wraps the device body.

[0020] Optionally, the slope of the inclined surface structure is greater than or equal to 30 degrees and less than 45 degrees.

[0021] Optionally, the filling structure has a softening film layer on a side facing away from the device body.

[0022] Optionally, the first airflow exchange hole and the second airflow exchange hole are in the shape of circular holes, and the diameter of the circular holes is 2 mm.

[0023] Optionally, the ear canal ventilation device is in an "S" shape.

[0024] The beneficial effects brought by the technical solution provided by the embodiment of the present application include at least:

[0025] An ear canal ventilation device may include: a device body, a drainage exchange tube and a ventilation tube. The device body has a first channel structure and a second channel structure for fixing the drainage exchange tube and the ventilation tube. The ventilation tube can work stably through the first channel structure. When the ear canal ventilation device is in working state, one end of the ventilation tube can be located at the junction of the external auditory canal and the auricle, which is used to transmit air to avoid the occurrence of excessive pressure in the ear, resulting in damage to the patient's ear canal. The drainage exchange tube can work stably through the second channel structure. When the ear canal ventilation device is in working state, the drainage exchange tube can be well fixedly connected to the device body through the exchange tube body, and the operator can ensure that when the ear canal ventilation device is in working state, the drainage exchange tube can discharge the effusion in the middle ear cavity well through the end structure by inserting the exchange tube end of the drainage exchange tube into the tympanic membrane incision. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 is a schematic diagram of a human ear structure provided in an embodiment of the present application;

[0028] Figure 2 is a schematic diagram of an ear canal ventilation device provided in an embodiment of the present application cooperating with a human ear;

[0029] Figure 3 is a schematic structural diagram of an ear canal ventilation device provided in an embodiment of the present application;

[0030] Figure 4 is a schematic structural diagram of another ear canal ventilation device provided in an embodiment of the present application;

[0031] Figure 5 is a schematic diagram of a first channel structure, a second channel structure and a horizontal plane position relationship provided in an embodiment of the present application;

[0032] Figure 6 is a schematic diagram of an airflow exchange hole provided in an embodiment of the present application;

[0033] Figure 7It is a structural schematic diagram of a drainage exchange tube provided in an embodiment of the present application;

[0034] Figure 8 is a schematic diagram of the structure of another drainage exchange tube provided in an embodiment of the present application;

[0035] Fig. 9 It is a cross-sectional view of an ear canal ventilation device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the following will be combined with the appended examples of the embodiments of the present application. Figure 1-9 , the technical solutions in the embodiments of the present application are described clearly and completely. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments.

[0037] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0038] In the description of the present application, it should be noted that the terms "center", "up", "down", "vertical", "horizontal", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the products of the application are usually placed when in use. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0039] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connected" and "connected" should be understood in a broad sense.

[0040] In the examples of this application, please refer to Figure 1 and Figure 2 , Figure 1 is a schematic diagram of a human ear structure provided in an embodiment of the present application, Figure 2 Schematic diagram of an ear canal ventilation device provided by an embodiment of the present application cooperating with a human ear. The human ear comprises an auricle 5, an external auditory canal 6 and an eardrum 7. When the ear canal ventilation device 000 is in use, at least a portion of the ear canal ventilation device 000 is located in the external auditory canal, and at least a portion of the end portion can be inserted into the eardrum.

[0041] In the examples of this application, please refer to Figure 3 , Figure 31 is a schematic diagram of the structure of an ear canal ventilation device 000 provided in an embodiment of the present application. The ear canal ventilation device 000 may include: a device body 100, a drainage exchange tube 200 and a ventilation tube 300.

[0042] The device body 100 has a first channel structure 101 and a second channel structure 102. The first channel structure 101 and the second channel structure 102 can be arranged along a first direction. The length of the first channel structure 101 can be equal to two-thirds of the second channel structure 102, and the first channel structure 101 can be aligned with one end of the second channel structure 102, and the other end is staggered. The projection of the first channel structure 101 on the second channel structure 102 is located inside the second channel structure 102. The first direction is the thickness direction of the ear canal ventilation device 000 when it is in use.

[0043] The vent tube 300 in the ear canal ventilation device 000 can be located in the first channel structure 101, and the outer wall of the vent tube 300 is in contact with the inner wall of the first channel structure 101, and the length of the vent tube 300 is equal to the length of the first channel structure 101. In this way, the vent tube 300 can work stably through the first channel structure 101. For example, when the ear canal ventilation device 000 is in working state, one end of the vent tube 300 can be located at the junction of the external auditory canal and the auricle, for transmitting air, to avoid the occurrence of excessive pressure in the ear, resulting in damage to the patient's ear canal.

[0044] The drainage exchange tube 200 in the ear canal ventilation device 000 can be located in the second channel structure 102, the outer wall of the drainage exchange tube 200 can be in contact with the inner wall of the second channel structure 102, and the length of the drainage exchange tube 200 can be equal to the length of the second channel structure 102. In this way, the drainage exchange tube 200 can work stably through the second channel structure 102. For example, when the ear canal ventilation device 000 is in working state, the drainage exchange tube 200 can be used to drain the effusion in the middle ear cavity, and input air to adjust the negative pressure in the middle ear cavity to avoid rupture of the eardrum.

[0045] Here, since the first channel structure 101 and the second channel structure 102 have a staggered structure when they are distributed, the drainage exchange tube 200 and the ventilation tube 300 are also staggered in arrangement, and the staggered structure can be located on the side of the drainage exchange tube 200 close to the tympanic membrane. In this way, it can be ensured that the end of the ventilation tube 30011 is not close to the tympanic membrane 7, thereby avoiding the adverse situation that the patient causes damage to the tympanic membrane during movement. For example, at the junction of the external auditory canal 6 and the auricle 5, the length of the ventilation tube 300 is about 1.7-2.4cm, and the inner diameter is 2-3mm. In this way, it can be ensured that the ventilation tube 300 has a better effect in transmitting air.

[0046] In the present application, the drainage exchange tube 200 may include: an exchange tube body and an exchange tube end, one end of the exchange tube end may be fixedly connected to the exchange tube body, and the other end of the exchange tube end may be configured to be inserted into the tympanic membrane incision when the ear canal ventilation device 000 is in use. In this way, it can be ensured that when the ear canal ventilation device 000 is in working state, the drainage exchange tube 200 can better discharge the effusion in the middle ear cavity through the end structure.

[0047] It should be noted that, in order to ensure that the drainage exchange tube 200 inputs air to adjust the negative pressure in the ear cavity, the portion of the second channel structure 102 that does not cover the projection of the first channel structure 101 has a first airflow exchange hole, and the drainage exchange tube 200 has a second airflow exchange hole 201 that is connected to the first airflow exchange hole. Through the second airflow exchange hole 201, the drainage exchange tube 200 can better contact with the external environment, and can also better cooperate with the ventilation tube 300 to ensure a better effect of negative pressure in the entire ear cavity.

[0048] In summary, an embodiment of the present application provides an ear canal ventilation device that may include: a device body, a drainage exchange tube and a ventilation tube. The device body has a first channel structure and a second channel structure for fixing the drainage exchange tube and the ventilation tube. The ventilation tube can work stably through the first channel structure. When the ear canal ventilation device is in a working state, one end of the ventilation tube can be located at the junction of the external auditory canal and the auricle, which is used to transmit air to avoid the occurrence of excessive pressure in the ear, resulting in damage to the patient's ear canal. The drainage exchange tube can work stably through the second channel structure. When the ear canal ventilation device is in a working state, the drainage exchange tube can be well fixedly connected to the device body through the exchange tube body, and the operator can ensure that when the ear canal ventilation device is in a working state, the drainage exchange tube can better discharge the effusion in the middle ear cavity through the end structure by inserting the exchange tube end of the drainage exchange tube into the tympanic membrane incision.

[0049] In the examples of this application, please refer to Figure 4 , Figure 4 1 is a schematic diagram of the structure of another ear canal ventilation device 000 provided in an embodiment of the present application. The end where the first channel structure 101 and the second channel structure 102 in the ear canal ventilation device 000 are aligned forms a slope structure 103. Through the slope structure 103, the ear canal ventilation device 000 can further increase the rate of air exchange, thereby further reducing the probability of damage to the human ear.

[0050] Please note that, please refer to Figure 5 , Figure 5It is a schematic diagram of the positional relationship between a first channel structure 101, a second channel structure 102 and a horizontal plane provided in an embodiment of the present application. The slope of the inclined structure 103 formed by the first channel structure 101 and the second channel structure 102 is greater than or equal to 30 degrees, and less than 45 degrees. According to the test results, when this angle requirement is met, the rate of air exchange between the ear canal ventilation device 000 and the external environment is optimal. Similarly, the cross-section of the end of the ventilation tube 300 close to the tympanic membrane can also be an inclined surface to enhance the air exchange rate.

[0051] For example, when the ear canal ventilation device 000 is in use, the ear canal ventilation device 000 can use the inertia of the airflow to make the slope an obstacle exciter, so as to enhance the dynamic updraft entering the ventilation tube 300 and enhance the air flow. Here, the dynamic updraft is the upward airflow formed by the horizontally moving wind changing its direction when it encounters a mountain or an obstacle. Its strength is affected by the size of the obstacle and the wind force. The steeper the slope of the obstacle exciter, the stronger the wind force, and the stronger the dynamic updraft. In the present application, in order to avoid the situation where the headphone ventilation device is not effective due to the slope being too steep, the range of the slope efficiency is limited.

[0052] In the examples of this application, please refer to Figure 6 , Figure 6 Schematic diagram of an airflow exchange hole provided in an embodiment of the present application. The first airflow exchange hole and the second airflow exchange hole 201 are in the shape of circular holes, and the diameter of the circular holes is 2 mm. In this way, the drainage exchange tube 200 and the ventilation tube 300 can exchange air better without affecting the working stability of the drainage exchange tube 200.

[0053] Here, in another possible implementation, the shape of the airflow exchange hole can also be an ellipse, and the area of ​​the ellipse is consistent with the area of ​​the airflow exchange hole when the shape is a circle. Its beneficial effect is consistent with that when the shape of the airflow exchange hole is a circle, and will not be repeated here.

[0054] In order to avoid the adverse situation of the patient's ear canal being damaged during the use of the ear canal ventilation device 000, the exchange tube end of the drainage exchange tube 200 can be processed. The structure of the exchange tube end can be implemented in a variety of possible ways:

[0055] In one possible implementation, see Figure 7 , Figure 72 is a schematic diagram of the structure of a drainage exchange tube 200 provided in an embodiment of the present application. The end of the exchange tube head away from the exchange tube body is a truncated cone structure. In this case, the end of the exchange tube head in the drainage exchange tube 200 away from the exchange tube body can have a small end structure 202, so that the incision area of ​​the tympanic membrane 7 can be reduced by entering the incision of the tympanic membrane 7 through the small end, thereby reducing the probability of causing irreparable damage to the tympanic membrane 7.

[0056] In another possible implementation, see Figure 8 , Figure 8 2 is a schematic diagram of the structure of another drainage exchange tube 200 provided in an embodiment of the present application. The end of the exchange tube head away from the exchange tube body is a circular arc convex structure. Through the circular arc structure, the exchange tube head can better fit the shape of the human ear and can further reduce the incision area of ​​the eardrum 7.

[0057] In the examples of this application, please refer to Fig. 9 , Fig. 9 4 is a cross-sectional view of an ear canal ventilation device 000 provided in an embodiment of the present application. The ear canal ventilation device 000 may further include: a filling structure 400 .

[0058] The filling structure 400 in the ear canal venting device 000 can wrap the device body 100. In this way, the filling structure 400 can fill the gap between the external auditory canal 6 and the device body 100, thereby enhancing the stability of the ear canal venting device 000 in the human ear and preventing the ear canal venting device 000 from falling off during the patient's movement.

[0059] In the present application, the side of the filling structure 400 facing away from the device body 100 may have a softened film layer 401, which can better fit the structure of the human ear, thereby further enhancing the stability of the ear canal ventilation device 000 in the human ear. In addition, a sterilization layer may be built into the softened film layer 401, thereby reducing the probability of infection in the human ear after the ear canal ventilation device 000 is placed in the human ear.

[0060] In the examples of this application, please refer to Figure 2 The shape of the ear canal venting device 000 can be "S" shaped. Here, since the external auditory canal 6 is curved in an "S" shape, the outer section is inward, forward and slightly upward, and the middle section is inward and backward. Therefore, the tube body 1 is an arc that matches the curvature of the external auditory canal 6, so that the outer surface of the tube body 1 fits the skin of the external auditory canal 6 to enhance stability.

[0061] In summary, an embodiment of the present application provides an ear canal ventilation device that may include: a device body, a drainage exchange tube and a ventilation tube. The device body has a first channel structure and a second channel structure for fixing the drainage exchange tube and the ventilation tube. The ventilation tube can work stably through the first channel structure. When the ear canal ventilation device is in a working state, one end of the ventilation tube can be located at the junction of the external auditory canal and the auricle, which is used to transmit air to avoid the occurrence of excessive pressure in the ear, resulting in damage to the patient's ear canal. The drainage exchange tube can work stably through the second channel structure. When the ear canal ventilation device is in a working state, the drainage exchange tube can be well fixedly connected to the device body through the exchange tube body, and the operator can ensure that when the ear canal ventilation device is in a working state, the drainage exchange tube can better discharge the effusion in the middle ear cavity through the end structure by inserting the exchange tube end of the drainage exchange tube into the tympanic membrane incision.

[0062] In the present application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. The term "plurality" refers to two or more than two, unless otherwise clearly defined.

[0063] The above description is only an optional embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. An ear canal ventilation device, characterized in that: Including the device body, drainage exchange tube and ventilation tube: The device body has a first channel structure and a second channel structure, the first channel structure and the second channel structure are arranged along a first direction, the length of the first channel structure is equal to two-thirds of the second channel structure, and one end of the first channel structure is aligned with the second channel structure, and the other end is staggered; The ventilation pipe is located in the first channel structure, and the outer wall of the ventilation pipe is in contact with the inner wall of the first channel structure, and the length of the ventilation pipe is equal to the length of the first channel structure; The drainage exchange tube is located in the second channel structure, and the outer wall of the drainage exchange tube is in contact with the inner wall of the second channel structure, and the length of the drainage exchange tube is equal to the length of the second channel structure; The drainage exchange tube comprises: an exchange tube body and an exchange tube end, one end of the exchange tube end is fixedly connected to the exchange tube body, and the other end of the exchange tube end is configured to be inserted into the tympanic membrane incision when the ear canal ventilation device is in use; The projection of the first channel structure on the second channel structure is located inside the second channel structure, and the portion of the second channel structure not covering the projection of the first channel structure has a first airflow exchange hole, The drainage exchange tube has a second airflow exchange hole communicating with the first airflow exchange hole; The first direction is the thickness direction of the ear canal ventilation device when it is in use.

2. An ear canal ventilation device according to claim 1, characterized in that: One end of the first channel structure aligned with the second channel structure forms a slope structure.

3. An ear canal ventilation device according to claim 1, characterized in that: The cross section of one end of the ventilation tube close to the tympanic membrane is an inclined surface to enhance the air exchange rate.

4. An ear canal ventilation device according to claim 1, characterized in that: The end of the exchange tube end away from the exchange tube body is a truncated cone structure.

5. An ear canal ventilation device according to claim 1, characterized in that: The end of the exchange tube end away from the exchange tube body is an arc-shaped protrusion structure.

6. An ear canal ventilation device according to claim 1, characterized in that: The ear canal ventilation device also includes: a filling structure; The filling structure wraps the device body.

7. An ear canal ventilation device according to claim 2, characterized in that: The slope of the inclined surface structure is greater than or equal to 30 degrees and less than 45 degrees.

8. An ear canal ventilation device according to claim 6, characterized in that: The side of the filling structure facing away from the device body has a softening film layer.

9. An ear canal ventilation device according to claim 6, characterized in that: The first airflow exchange hole and the second airflow exchange hole are in the shape of circular holes, and the diameter of the circular holes is 2 mm.

10. An ear canal ventilation device according to claim 6, characterized in that: The ear canal ventilation device is in an "S" shape.

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