Tympanic membrane breather tube imbedding device

Abstract

The utility model discloses a tympanic membrane breather pipe imbedding device which comprises a main body mechanism used for forming a combined type pipe body structure, an imbedding mechanism used for meeting the imbedding requirement of a breather pipe and a positioning mechanism used for conducting adjustable positioning on the imbedding device. The device has the advantages that the device is provided with the main body mechanism, a combined multi-layer pipe body structure is adopted, the device is convenient to disassemble, assemble and maintain, the device is provided with the imbedding mechanism, the imbedding process can be ensured to be stable through an elastic pushing and injecting structure, and the positioning mechanism is arranged on the side portion of the main body mechanism. Secondary injury to a wound of a patient in the implantation process is avoided, the operation difficulty is reduced, the positioning mechanism is arranged, the implantation angle can be adjusted, the adjusting mode is simple, implantation operation of the breather pipe can be achieved without relying on a micro camera, the use cost is low, and application and popularization are convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a tympanic membrane ventilation tube insertion device. Background Art

[0002] In the prior art, chronic non-suppurative otitis media is a common and frequently occurring disease, which is more common in children. It has a serious impact on hearing, thus affecting children's intellectual development and learning. The cause of the disease is mostly Eustachian tube obstruction, which causes tympanic effusion. Tympanic effusion is caused by diseases such as catarrhal otitis media, secretory otitis media, barotrauma media and aerotitis media. Drainage of tympanic effusion is one of the important measures for treating non-suppurative otitis media. The commonly used method is tympanostomy tube placement. The tube can be placed through the external auditory canal and tympanic membrane to embed the tympanic membrane. At the incision (the upper and lower parts of the tympanic membrane ventilation tube are respectively outside and inside the tympanic membrane), the ventilation tube can drain the liquid in the tympanic cavity and ventilate. At present, the structure of the tympanic membrane ventilation tube is mostly I-shaped ventilation tube, which has a ventilation tube body and the upper and lower edges are annular edges with larger diameters. The purpose is to stabilize the ventilation tube and prevent it from falling into the tympanic cavity or falling out of the tympanic cavity. The I-shaped ventilation tube also has some special shapes to facilitate its insertion and removal, such as a sharp blade at the front of the lower edge to facilitate tympanic membrane incision, or a pull ring at the upper edge to facilitate removal, or an inclined edge, etc. The steps of the myringotomy and tube placement procedure are to first make an incision on the tympanic membrane, then use an instrument (grain forceps) to pass the ventilation tube through the external auditory canal, and insert the sharp blade of the lower edge of the tympanic membrane ventilation tube into the tympanic membrane incision. In the second step, use a sharp needle to insert the back of the lower edge of the tympanic membrane ventilation tube into the tympanic membrane incision. However, due to the thickness of the cannula itself, the current catheter placement device may expand or even tear the incision on the eardrum when inserted into it. In addition, since the cannula has no supporting parts, it needs to be controlled by hand throughout the process. During the movement, it is likely that hand shaking will make it difficult to align with the incision on the eardrum, and even cause additional trauma.

[0003] The Chinese utility model patent application number: 202222437074.4 discloses a tympanic membrane ventilation tube placement device, including a guide rod, a sleeve slidably sleeved on the guide rod, the length of the sleeve being less than the length of the guide rod; a support assembly is installed on the sleeve; the support assembly includes a threaded barrel slidably sleeved on the sleeve, a fixed ring is fixedly connected to one end of the outer wall of the threaded barrel, a movable ring is also slidably provided on the outer wall of the threaded barrel, the outer peripheral wall of the fixed ring and the outer peripheral wall of the movable ring are fixedly connected by a wire mesh, a distance adjustment assembly is installed on the end of the outer wall of the threaded barrel away from the fixed ring, and the movable ring is confined between the fixed ring and the distance adjustment assembly. However, the adjustment method of this tympanic membrane ventilation tube placement device is relatively cumbersome, and it is necessary to rely on a miniature camera for observation to realize the ventilation tube placement operation. The use cost is high, which is not conducive to popularization and use. Utility Model Content

[0004] The utility model aims to provide a tympanic membrane ventilation tube insertion device.

[0005] In order to achieve the above purpose, the technical solution proposed by the utility model is:

[0006] A tympanic membrane ventilation tube insertion device includes a main body structure for forming a combined tube body structure, an insertion mechanism for meeting the ventilation tube insertion requirements, and a positioning mechanism for adjustable positioning of the insertion device. The main body adopts a combined multi-layer tube body structure, the insertion mechanism is configured at one end of the main body mechanism, and the positioning mechanism is assembled on the side of the main body mechanism.

[0007] The main body structure includes a main body outer tube, a main body end tube and a main body core tube. The interior of the main body outer tube is a hollow structure. The main body end tube is inserted at one end of the main body outer tube and its part protrudes from the main body outer tube. The main body core tube is arranged inside the main body outer tube and the main body end tube, and its outer wall is fitted with the inner wall of the main body end tube.

[0008] The main body outer tube is a stepped outer tube structure, the diameter of the main body end tube protruding from one end of the main body outer tube is smaller than the diameter of the other end of the main body outer tube, and the main body core tube is close to the end of the main body outer tube and is shaped like the middle part of the main body outer tube and abuts against the main body outer tube.

[0009] The insertion mechanism includes an insertion connecting tube, an insertion end head, an insertion core rod and an insertion top block. The insertion connecting tube is arranged at one end of the main body end tube protruding from the main body outer tube and is plugged into the main body end tube. The insertion end head is arranged at one end of the insertion connecting tube away from the main body end tube and is fixedly connected to the insertion connecting tube. The insertion core rod is arranged inside the insertion connecting tube and is slidably connected to the insertion connecting tube. The insertion top block is arranged at one end of the insertion core rod close to the insertion end head and is fixedly connected to the insertion core rod. The insertion top block is located inside the insertion end head.

[0010] The insertion end is set to a bullet shape and its interior is set to a hollow structure, the insertion core rod is set to a stepped rod structure and its end close to the main body end tube is set to a round head structure, and the insertion top block is set to a conical frustum structure corresponding to the insertion end.

[0011] It also includes a push injection mechanism, which includes a push injection base block, a push injection spring, a push injection ejector block and a push rod assembly, wherein the push injection base block is arranged inside the end of the main body core tube away from the main body end tube and is slidably connected to the main body core tube, the push injection spring is arranged on the end of the push injection base block close to the inserted core rod and is fixedly connected to the push injection base block, the push injection ejector block is arranged on the end of the push injection spring away from the push injection base block and is fixedly connected to the push injection spring, the end of the push injection ejector block is provided with a push injection groove corresponding to the inserted core rod, and the push rod assembly is arranged on the end of the push injection base block away from the push injection spring.

[0012] The push rod assembly includes a push rod, a push rod guide block and a pressure push rod, the push rod core rod is arranged at the end of the push rod base block away from the push spring and one end of the push rod is fixedly connected to the push rod base block, the push rod guide block is arranged in the middle of the main body outer tube and is embedded in the main body outer tube, the push rod guide block is sleeved with the push rod core rod, the pressure push rod is arranged at the end of the push rod core rod away from the push rod base block and is fixedly connected to the push rod core rod, part of the pressure push rod protrudes from the main body outer tube and the end of the pressure push rod protruding from the main body outer tube is provided with a pressure end block.

[0013] The positioning mechanism includes a positioning mounting ring, a positioning bracket, a positioning mounting rod and a positioning assembly, wherein the positioning mounting ring is sleeved on the middle part of the outer tube of the main body and is clamped with the outer tube of the main body, the positioning bracket is provided with two groups, the two groups of positioning brackets are symmetrically arranged on one side of the positioning mounting ring close to the end tube of the main body and one end thereof is fixedly connected to the positioning mounting ring, the two groups of positioning brackets are relatively inclined, the positioning mounting rod is provided with two groups, the two groups of positioning mounting rods are respectively arranged at one end of the two groups of positioning brackets away from the positioning mounting ring and are rotatably connected to the corresponding positioning bracket, and the positioning assembly is provided with two groups, the two groups of positioning assemblies are respectively arranged at one end of the two groups of positioning mounting rods away from the positioning bracket.

[0014] It also includes positioning screws, which are provided in two groups. The two groups of positioning screws are respectively arranged at the connection between the two groups of positioning mounting rods and the two groups of positioning brackets and pass through the corresponding positioning mounting rods and the positioning brackets. The positioning screws are fixedly connected to the positioning mounting rods and the positioning brackets through nuts.

[0015] The positioning assembly includes a positioning base block and a positioning bracket. The positioning base block is arranged at one end of the positioning mounting rod away from the positioning bracket and is fixedly connected to the positioning mounting rod. The positioning bracket is arranged on one side of the positioning base block and is fixedly connected to the positioning base block. The positioning bracket is arranged as an arc-shaped bracket structure. The positioning brackets in the two groups of positioning assemblies are arranged opposite to each other.

[0016] The beneficial effects of the utility model are:

[0017] It is equipped with a main body structure, which adopts a combined multi-layer tube structure, which is easy to disassemble and repair. It is equipped with an insertion mechanism, which can ensure the stability of the insertion process through the elastic push-in structure, and will not cause secondary damage to the patient's wound during the insertion process, reducing the difficulty of operation. It is equipped with a positioning mechanism, which can adjust the insertion angle. The adjustment method is simple and the ventilation tube can be inserted without relying on a micro camera. The cost of use is low and it is easy to promote and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a cross-sectional view of the utility model;

[0020] Figure 3 It is a structural diagram of the positioning component of the utility model.

[0021] In the figure: 1. Main body outer tube; 2. Main body end tube; 3. Main body core tube; 4. Insert connecting tube; 5. Insert end head; 6. Insert core rod; 7. Insert ejector block; 8. Push-in base block; 9. Push-in spring; 10. Push-in ejector block; 11. Push-in core rod; 12. Push rod guide block; 13. Pressure push rod; 14. Positioning mounting ring; 15. Positioning bracket; 16. Positioning mounting rod; 17. Positioning screw; 18. Positioning base block; 19. Positioning bracket. DETAILED DESCRIPTION

[0022] The present invention is described in further detail below with reference to the accompanying drawings.

[0023] A tympanic membrane ventilation tube insertion device includes a main body structure for forming a combined tube structure, an insertion mechanism for meeting the ventilation tube insertion requirements, and a positioning mechanism for adjustable positioning of the insertion device. The main body adopts a combined multi-layer tube structure, the insertion mechanism is configured at one end of the main body, and the positioning mechanism is assembled on the side of the main body. The overall structure diagram of the utility model is shown as follows Figure 1 shown.

[0024] The main body mechanism includes a main body outer tube 1, a main body end tube 2 and a main body core tube 3. The interior of the main body outer tube 1 is a hollow structure. The main body end tube 2 is inserted at one end of the main body outer tube 1 and its part protrudes from the main body outer tube 1. The main body core tube 3 is arranged inside the main body outer tube 1 and the main body end tube 2 and its outer wall is fitted with the inner wall of the main body end tube 2. The main body outer tube 1 is a stepped outer tube structure. The diameter of the main body end tube 2 protruding from one end of the main body outer tube 1 is smaller than the diameter of the other end of the main body outer tube 1. The main body core tube 3 is close to one end of the main body outer tube 1 and is shaped like the middle part of the main body outer tube 1 and is against the main body outer tube 1. The main body mechanism cooperates with the main body outer tube 1, the main body end tube 2 and the main body core tube 3 to form a multi-layer tubular main body structure, which can ensure the stability of the main body while facilitating disassembly and maintenance. Among them, the main body outer tube 1 is used to provide installation support for the main body end tube 2, and the main body end tube 2 is used to form a tubular main body structure together with the main body outer tube 1 and provide installation support for the main body core tube 3. The main body core tube 3 is used to form a multi-layer tubular main body structure together with the main body outer tube 1 and the main body core tube 3. The column mechanism can be disassembled and assembled after use for cleaning and maintenance to meet the needs of repeated use. The cross-sectional view of the utility model is as follows Figure 2 shown.

[0025] The insertion mechanism includes an insertion connecting tube 4, an insertion end head 5, an insertion core rod 6 and an insertion top block 7. The insertion connecting tube 4 is arranged at one end of the main body end tube 2 protruding from the main body outer tube 1 and is plugged into the main body end tube 2. The insertion end head 5 is arranged at the end of the insertion connecting tube 4 away from the main body end tube 2 and is fixedly connected to the insertion connecting tube 4. The insertion core rod 6 is arranged inside the insertion connecting tube 4 and is slidably connected to the insertion connecting tube 4. The insertion top block 7 is arranged at the end of the insertion core rod 6 close to the insertion end head 5 and is fixedly connected to the insertion core rod 6. The insertion top block 7 is located inside the insertion end head 5. The insertion end head 5 is set to a bullet shape and its interior is set to a hollow structure. The insertion core rod 6 is set to a stepped rod-shaped structure and its end close to the main body end tube 2 is set to a round head structure. The structure is that the insertion top block 7 is set to a conical frustum structure corresponding to the insertion end head 5. The insertion mechanism cooperates with the insertion connecting tube 4, the insertion end head 5, the insertion core rod 6 and the insertion top block 7 to form the insertion end of the insertion device to meet the insertion requirements of the tympanic membrane ventilation tube, wherein the insertion connecting tube 4 is used to provide installation support for the insertion end head 5 and connect the insertion end head 5 with the main end tube 2, the insertion end head 5 is used as the main part of the insertion end and provides an installation space for the tympanic membrane ventilation tube, the insertion core rod 6 is used to provide installation support for the insertion top block 7 and drive the insertion top block 7 to move under the action of the injection mechanism, and the insertion top block 7 is used to move under the action of the insertion core rod 6, so that the tympanic membrane ventilation tube in the insertion end head 5 is inserted into the installation hole at the patient's tympanic membrane.

[0026] It also includes a push injection mechanism, which includes a push injection base block 8, a push injection spring 9, a push injection ejector block 10 and a push rod assembly. The push injection base block 8 is arranged inside the end of the main body core tube 3 away from the main body end tube 2 and is slidably connected to the main body core tube 3. The push injection spring 9 is arranged on the end of the push injection base block 8 close to the inserted core rod 6 and is fixedly connected to the push injection base block 8. The push injection ejector block 10 is arranged on the end of the push injection spring 9 away from the push injection base block 8 and is fixedly connected to the push injection spring 9. The end of the push injection ejector block 10 is provided with a push injection groove corresponding to the inserted core rod 6. The push rod assembly is arranged on the push injection base block 8 away from the push injection At one end of the spring 9, the push mechanism cooperates with the push base block 8, the push spring 9, the push ejector block 10 and the push rod assembly to apply elastic pressure to the insertion core rod 6 to realize the insertion operation, wherein the push base block 8 is used to provide installation support for the push spring 9, the push spring 9 is used to provide elastic support for the push ejector block 10 and elastically connect the push ejector block 10 to the push base block 8, the push ejector block 10 is used to apply elastic pressure to the insertion core rod 6 under the action of the push spring 9 to realize the insertion operation, and the push rod assembly is used to apply pressure to the push base block 8 to realize the insertion operation.

[0027] The push rod assembly includes a push rod 11, a push rod guide block 12 and a pressure push rod 13. The push rod 11 is arranged at one end of the push rod base 8 away from the push spring 9 and one end thereof is fixedly connected to the push rod base 8. The push rod guide block 12 is arranged in the middle of the main body outer tube 1 and is embedded in the main body outer tube 1. The push rod guide block 12 is sleeved with the push rod 11. The pressure push rod 13 is arranged at one end of the push rod 11 away from the push spring 9 and is fixedly connected to the push rod 11. The pressure push rod 13 protrudes from the main body outer tube 1 and the pressure push rod 1 A pressure end block is provided at one end protruding from the main body outer tube 1. The push rod assembly cooperates with the push rod 11, the push rod guide block 12, and the pressure push rod 13 to apply pressure to the push rod base block 8 to achieve the insertion operation. The push rod 11 is used to connect with the push rod base block 8 and, under the action of the pressure push rod 13, apply pressure to the push rod base block 8 to achieve the insertion operation. The push rod guide block 12 is used to provide guiding support for the push rod 11. The user can apply pressure to the push rod 11 through the pressure push rod 13 to meet the insertion requirements of the tympanic membrane ventilation tube.

[0028] The positioning mechanism includes a positioning mounting ring 14, a positioning bracket 15, a positioning mounting rod 16 and a positioning assembly. The positioning mounting ring 14 is sleeved on the middle part of the main body outer tube 1 and is clamped with the main body outer tube 1. There are two groups of positioning brackets 15. The two groups of positioning brackets 15 are symmetrically arranged on one side of the positioning mounting ring 14 close to the main body end tube 2 and one end thereof is fixedly connected to the positioning mounting ring 14. The two groups of positioning brackets 15 are relatively inclined. There are two groups of positioning mounting rods 16. The two groups of positioning mounting rods 16 are respectively arranged at one end of the two groups of positioning brackets 15 away from the positioning mounting ring 14 and are rotatably connected to the corresponding positioning bracket 15. There are two groups of positioning assemblies, and the two groups of positioning assemblies are respectively arranged At one end of the two sets of positioning mounting rods 16 away from the positioning bracket 15, the positioning mechanism cooperates with the positioning mounting ring 14, the positioning bracket 15, the positioning mounting rod 16 and the positioning assembly to achieve relative positioning between the implant device and the patient's ear, wherein the positioning mounting ring 14 is used to provide mounting support for the positioning bracket 15 and to install the positioning bracket 15 on the outer tube of the main body 1, the positioning bracket 15 is used to provide mounting support for the positioning mounting rod 16, the positioning mounting rod 16 is used to provide mounting support for the positioning assembly and together with the positioning bracket 15 constitute an adjustable support rod structure, and the positioning assembly is used to be hung with the patient's ear to achieve relative positioning between the implant device and the patient's ear.

[0029] It also includes positioning screws 17, and there are two groups of positioning screws 17. The two groups of positioning screws 17 are respectively arranged at the connection between the two groups of positioning mounting rods 16 and the two groups of positioning brackets 15 and pass through the corresponding positioning mounting rods 16 and positioning brackets 15. The positioning screws 17 are fixedly connected to the positioning mounting rods 16 and the positioning brackets 15 through nuts. The positioning screws 17 are used to achieve relative fixation between the positioning mounting rods 16 and the positioning brackets 15. When the installation angle of the insertion device needs to be adjusted, the positioning mounting rods 16 can be rotated to adjust the relative angle between the positioning mounting rods 16 and the positioning brackets 15. After that, the positioning screws 17 can be tightened to achieve relative fixation between the positioning mounting rods 16 and the positioning brackets 15, thereby completing the adjustment of the installation angle of the insertion device.

[0030] The positioning assembly includes a positioning base block 18 and a positioning hanger 19. The positioning base block 18 is arranged at one end of the positioning mounting rod 16 away from the positioning bracket 15 and is fixedly connected to the positioning mounting rod 16. The positioning hanger 19 is arranged on one side of the positioning base block 18 and is fixedly connected to the positioning base block 18. The positioning hanger 19 is arranged into an arc-shaped hanger structure. The positioning hangers 19 in the two groups of positioning assemblies are arranged opposite to each other. The positioning assembly cooperates with the patient's ear through the positioning base block 18 and the positioning hanger 19 to achieve relative positioning between the implant device and the patient's ear. Among them, the positioning base block 18 is used to provide mounting support for the positioning hanger 19 and connect the positioning hanger 19 to the positioning mounting rod 16. The positioning hanger 19 cooperates with the patient's ear through its arc-shaped hanger structure, thereby achieving relative positioning between the implant device and the patient's ear. The two groups of relatively arranged positioning hangers 19 can ensure the positioning stability between the implant device and the patient's ear. The structural schematic diagram of the positioning assembly of the present utility model is shown in FIG. Figure 3 shown.

[0031] Working principle:

[0032] When the tympanic membrane ventilation tube needs to be inserted into the patient's tympanic membrane, the tympanic membrane ventilation tube is placed in the insertion end 5, and the insertion device is installed on the patient's ear through the positioning bracket 19. Then, the angle between the positioning bracket 15 and the positioning mounting rod 16 is adjusted according to actual conditions, and the positioning screw 17 is tightened to achieve relative fixation between the positioning mounting rod 16 and the positioning bracket 15, so that the insertion device is installed in the patient's ear through the positioning mechanism. At this time, the insertion end 5 is located in the patient's ear canal and aligned with the mounting hole on the tympanic membrane. Then, the operator can push the injection mechanism to move by applying pressure to the insertion push rod 13, thereby applying pressure to the insertion core rod 6 to drive the insertion top block 7 to move through the insertion core rod 6. The insertion top block 7 inserts the tympanic membrane ventilation tube in the insertion end 5 into the patient's tympanic cavity along the mounting hole on the tympanic membrane, and the antenna structure on the tympanic membrane ventilation tube automatically opens to be fixed on the tympanic membrane, and the insertion operation of the tympanic membrane ventilation tube is completed.

[0033] The beneficial effects of the present invention are that it is provided with a main body structure, which adopts a combined multi-layer tube structure, is easy to disassemble and repair, is provided with an insertion mechanism, and the elastic push-in structure can ensure the stability of the insertion process, and will not cause secondary damage to the patient's wound during the insertion process, reducing the difficulty of operation, and is provided with a positioning mechanism, which can adjust the insertion angle, and the adjustment method is simple. The ventilation tube can be inserted without relying on a micro camera, the use cost is low, and it is easy to promote and use.

[0034] The above describes an embodiment of the present invention in detail. However, the content is only a preferred embodiment of the present invention and should not be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A tympanic membrane ventilation tube insertion device, characterized in that: The device comprises a main body structure for forming a combined tube structure, an insertion mechanism for meeting the requirements of ventilation tube insertion, and a positioning mechanism for adjustable positioning of the insertion device. The main body adopts a combined multi-layer tube structure, the insertion mechanism is configured at one end of the main body, and the positioning mechanism is assembled on the side of the main body. The main body structure comprises a main body outer tube (1), a main body end tube (2) and a main body core tube (3); the main body outer tube (1) is hollow in structure; the main body end tube (2) is inserted into one end of the main body outer tube (1) and partially protrudes from the main body outer tube (1); the main body core tube (3) is arranged inside the main body outer tube (1) and the main body end tube (2), and its outer wall is arranged to fit the inner wall of the main body end tube (2); The insertion mechanism comprises an insertion connecting tube (4), an insertion end head (5), an insertion core rod (6) and an insertion top block (7); the insertion connecting tube (4) is arranged at one end of the main body end tube (2) protruding from the main body outer tube (1) and plugged into the main body end tube (2); the insertion end head (5) is arranged at one end of the insertion connecting tube (4) away from the main body end tube (2) and fixedly connected to the insertion connecting tube (4); the insertion core rod (6) is arranged inside the insertion connecting tube (4) and slidably connected to the insertion connecting tube (4); the insertion top block (7) is arranged at one end of the insertion core rod (6) close to the insertion end head (5) and fixedly connected to the insertion core rod (6); and the insertion top block (7) is located inside the insertion end head (5); The invention also includes a push injection mechanism, which includes a push injection base block (8), a push injection spring (9), a push injection ejector block (10) and a push rod assembly. The push injection base block (8) is arranged inside the end of the main body core tube (3) away from the main body end tube (2) and is slidably connected to the main body core tube (3). The push injection spring (9) is arranged at the end of the push injection base block (8) close to the inserted core rod (6) and is fixedly connected to the push injection base block (8). The push injection ejector block (10) is arranged at the end of the push injection spring (9) away from the push injection base block (8) and is fixedly connected to the push injection spring (9). The end of the push injection ejector block (10) is provided with a push injection groove corresponding to the inserted core rod (6). The push rod assembly is arranged at the end of the push injection base block (8) away from the push injection spring (9).

2. The tympanic membrane ventilation tube insertion device according to claim 1, characterized in that: The main body outer tube (1) is a stepped outer tube structure; the diameter of the main body end tube (2) protruding from one end of the main body outer tube (1) is smaller than the diameter of the other end of the main body outer tube (1) plugged in; the main body core tube (3) is close to one end of the main body outer tube (1) and is arranged in a shape similar to the middle part of the main body outer tube (1) and abuts against the main body outer tube (1).

3. The tympanic membrane ventilation tube insertion device according to claim 2, characterized in that: The insertion end head (5) is configured as a bullet head shape and its interior is configured as a hollow structure; the insertion core rod (6) is configured as a stepped rod structure and its end close to the main body end tube (2) is configured as a round head structure; the insertion top block (7) is configured as a conical frustum structure corresponding to the insertion end head (5).

4. The tympanic membrane ventilation tube insertion device according to claim 3, characterized in that: The push rod assembly includes a push rod (11), a push rod guide block (12) and a pressure push rod (13), wherein the push rod (11) is arranged at one end of the push rod base block (8) away from the push spring (9) and one end of the push rod is fixedly connected to the push rod base block (8), the push rod guide block (12) is arranged in the middle of the main body outer tube (1) and is embedded in the main body outer tube (1), the push rod guide block (12) is sleeved with the push rod (11), the pressure push rod (13) is arranged at one end of the push rod (11) away from the push rod base block (8) and is fixedly connected to the push rod (11), a portion of the pressure push rod (13) protrudes from the main body outer tube (1) and the end of the pressure push rod (13) protruding from the main body outer tube (1) is provided with a pressure end block.

5. The tympanic membrane ventilation tube insertion device according to claim 4, characterized in that: The positioning mechanism comprises a positioning mounting ring (14), a positioning bracket (15), a positioning mounting rod (16) and a positioning assembly. The positioning mounting ring (14) is sleeved on the middle part of the main body outer tube (1) and is clamped with the main body outer tube (1). The positioning bracket (15) is provided with two groups. The two groups of positioning brackets (15) are symmetrically arranged on one side of the positioning mounting ring (14) close to the main body end tube (2) and one end thereof is fixedly connected to the positioning mounting ring (14). The two groups of positioning brackets (15) are relatively inclined. The positioning mounting rod (16) is provided with two groups. The two groups of positioning mounting rods (16) are respectively arranged at one end of the two groups of positioning brackets (15) away from the positioning mounting ring (14) and are rotatably connected to the corresponding positioning bracket (15). The positioning assembly is provided with two groups. The two groups of positioning assemblies are respectively arranged at one end of the two groups of positioning mounting rods (16) away from the positioning bracket (15).

6. The tympanic membrane ventilation tube insertion device according to claim 5, characterized in that: The invention also includes positioning screws (17), wherein the positioning screws (17) are provided in two groups. The two groups of positioning screws (17) are respectively arranged at the connection between the two groups of positioning mounting rods (16) and the two groups of positioning brackets (15) and pass through the corresponding positioning mounting rods (16) and the positioning brackets (15). The positioning screws (17) are fixedly connected to the positioning mounting rods (16) and the positioning brackets (15) through nuts.

7. The tympanic membrane ventilation tube insertion device according to claim 6, characterized in that: The positioning assembly comprises a positioning base block (18) and a positioning hanger (19), wherein the positioning base block (18) is arranged at one end of the positioning mounting rod (16) away from the positioning bracket (15) and is fixedly connected to the positioning mounting rod (16), and the positioning hanger (19) is arranged on one side of the positioning base block (18) and is fixedly connected to the positioning base block (18). The positioning hanger (19) is arranged as an arc-shaped hanger structure, and the positioning hangers (19) in the two groups of positioning assemblies are arranged relative to each other.

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