Ventilation pipe embedding device for treating otitis media
A one-piece device for tympanostomy addresses the challenge of minimizing ear damage during middle ear infection treatment by integrating tympanostomy tube insertion, drainage, and cleaning, facilitating a single, efficient surgical intervention.
Patent Information
- Application Number
- CN202510606394.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-12
- Publication Date
- 2025-07-15
AI Technical Summary
In the current otitis media surgery, the viscosity of tympanic fluid is not easily cleaned by the tympanic membrane puncture, and it is prone to recur after puncture. The traditional surgical method has great damage to the intra-ear structure and is complicated to operate.
A ventilation duct device for the treatment of otitis media is designed. Through the device composed of the shell and the guide part, the tympanic membrane incision, ventilation duct placement, and fluid extraction and cleaning are achieved at one time, reducing damage to the ears.
The integrated operation of tympanic membrane incision, ventilation duct placement and effusion cleaning is realized, reducing damage to the intra-ear structure and improving the convenience and safety of the operation.
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Figure CN120305037A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of otological surgical treatment instruments, and more particularly, to a ventilation tube implantation device for treating otitis media. Background Art
[0002] Due to otitis media, there is inflammation in the inner ear and fluid accumulation, which requires surgical treatment. The surgical treatment of otitis media mainly aims at the surgical treatment of secretory otitis media and suppurative otitis media and other diseases. The main surgical methods include myringotomy, tympanoplasty, and radical mastoidectomy, etc.
[0003] When the tympanic effusion is viscous and difficult to be cleared by tympanocentesis, and when there is recurrence of effusion in a short period after puncture aspiration, myringotomy can be performed under the guidance of a doctor. The hearing can be improved by simply repairing the tympanic membrane perforation under the treatment of a doctor, which is mostly applicable to patients with simple chronic suppurative otitis media. While preserving and providing hearing, complications can be effectively controlled.
[0004] Myringotomy and ventilation tube implantation are usually used to treat secretory otitis media. After the ventilation tube is inserted, the secretions in the ear cavity will be discharged through the ventilation tube, and it can be taken out only after the inflammation has healed.
[0005] The present invention performs an external auditory canal tympanic membrane cutting operation and implants a ventilation tube. By using this device, it is difficult to perform a cutting operation due to the small inner ear space. By using this device, the insertion of the ventilation tube, tympanotomy, effusion extraction, and ear cavity cleaning are integrally set, and a single operation can be completed at one time, and the device is for single use. Using this device can reduce damage to organs, and the operation is convenient and fast. Summary of the Invention
[0006] An object of the present invention is to provide a ventilation tube implantation device for treating otitis media.
[0007] According to one aspect of the present application, there is provided a ventilation tube implantation device for treating otitis media, including: a housing, the housing is a hollow tube, a guiding part is arranged inside the housing, the guiding part is a hollow tube, a prefabricated part is arranged at the first end of the guiding part, the prefabricated part is arranged at the first end inside the housing, a ventilation tube is arranged inside the prefabricated part, and the second end of the prefabricated part abuts against the first end of the guiding part.
[0008] Optionally, a receiving groove is arranged inside the first end of the prefabricated part, and the receiving groove is used for receiving the wing strip of the ventilation tube.
[0009] Optionally, a clamping groove is arranged at the second end of the prefabricated part, and a limiting groove is arranged on the other side of the clamping groove.
[0010] Optionally, a locking part is arranged at the first end of the guiding part, and a protruding locking hook is arranged at the front end of the locking part.
[0011] Optionally, the clamping slot and the limiting slot are cross-arranged, a locking slot is provided at the inner end of the clamping slot, and the locking slot is connected to a locking member of the guide portion.
[0012] Optionally, a guide member is provided at the second end of the guide portion, and the guide member slides in an inner slideway of the second end of the shell. One end of the elastic component is provided in the second end of the shell, and the other end of the elastic component is provided on the bottom end surface of the accommodating chamber, contacting the inner end surface of the boss on the second end surface of the guide portion.
[0013] Optionally, a first seal and a second seal are disposed in the guide portion, a space is provided between the first seal and the second seal, and a third seal is disposed at the front end of the guide portion.
[0014] Optionally, a puncture part is provided in the guide part, a channel is provided in the puncture part, the suction hole at the front end of the puncture part and the channel at the rear end are connected to each other, and the channel at the rear end of the puncture part is provided between the first sealing part and the second sealing part of the guide part.
[0015] Optionally, a puncture member is provided at the rear end of the puncture portion, and the puncture member is inserted into the channel of the guide member.
[0016] Optionally, a connecting pipe is provided outside the shell, and the connecting pipe is connected to the guide part.
[0017] According to a second aspect of the present invention, there is provided a method for inserting a ventilation tube by means of the ventilation tube insertion device of the above-mentioned embodiment, the method comprising: a puncture portion is arranged in the guide portion, a puncture piece is arranged at the rear end of the puncture portion, the puncture piece is penetrated in the channel of the guide piece, the outer shell enters the external auditory canal, the puncture piece is inserted into the rear end, the front end of the puncture needle punctures the tympanic membrane, the pressing piece is pressed to separate the ventilation tube from the prefabricated portion, and the ventilation tube is placed in the perforation of the tympanic membrane.
[0018] One technical effect of the present application is that the ventilation tube insertion device for treating otitis media in the embodiment of the present application can perform eardrum perforation, ventilation tube insertion, and fluid extraction and cleaning in the ear in an integrated product, all in one operation. This avoids unnecessary accidental injury to the ear when placing surgical instruments, reduces harm to the patient, and can quickly complete the operation.
[0019] Further features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.
[0021] Figure 1It is a schematic structural diagram of a ventilation tube implantation device for treating otitis media according to the present invention;
[0022] Figure 2 It is a schematic structural diagram of a disassembled part of a ventilation tube implantation device for treating otitis media according to the present invention;
[0023] Figure 3 It is a schematic structural diagram of a partially cut-away ventilation tube implantation device for treating otitis media according to the present invention;
[0024] Figure 4 It is a schematic structural diagram of a part of the ventilation tube of a ventilation tube implantation device for treating otitis media according to the present invention;
[0025] Figure 5 It is one of the schematic structural diagrams of the prefabricated part of a ventilation tube implantation device for treating otitis media according to the present invention;
[0026] Figure 6 It is another schematic structural diagram of the prefabricated part of a ventilation tube implantation device for treating otitis media according to the present invention;
[0027] Figure 7 It is one of the schematic explosion diagrams of a ventilation tube implantation device for treating otitis media according to the present invention;
[0028] Figure 8 It is another schematic explosion diagram of a ventilation tube implantation device for treating otitis media according to the present invention;
[0029] Figure 9 It is a schematic structural diagram of a ventilation tube implantation device during the operation for treating otitis media according to the present invention.
[0030] Explanation of reference numerals:
[0031] 1. Outer shell; 2. Guide part; 3. Puncture part; 4. Prefabricated part; 5. Ventilation tube; 6. Ear; 11. Cap; 12. Connecting tube; 13. Chute; 14. Limiting part; 15A. First end; 15. Second end; 21. Locking part; 22A. First end; 22. Second end; 23. Guide part; 24. Pressing part; 25. Spring; 26. Through hole; 31. Puncturing part; 32. Sealing part; 33. Limiting block; 34. Suction hole; 35. Puncturing end; 41. Card slot; 42. Limiting groove; 43. Groove; 44. Locking groove; 45A. First end; 45. Second end; 51. Wing strip; 52. Tube body; 61. Cochlea; 62. Tympanic cavity; 63. Tympanic membrane; 211. Lock head; 231. Sliding part; 321. First sealing part; 322. Second sealing part; 323. Third sealing part. Detailed implementation manners
[0032] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention.
[0033] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way a limitation on the present invention, its application, or use.
[0034] Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such technologies, methods, and devices should be regarded as part of the specification.
[0035] In all the examples shown and discussed herein, any specific values should be construed as merely exemplary and not as a limitation. Accordingly, other examples of the exemplary embodiments may have different values.
[0036] It should be noted that: like reference numerals and letters denote like items in the following drawings; thus, once an item is defined in one drawing, further discussion thereof is not required in subsequent drawings.
[0037] As an aspect of the present invention, please refer to Figures 1 to 2 As shown, according to an embodiment of the present application, there is provided an ear ventilation tube implantation device for treating otitis media. First, an outer tube is implanted, and by operating each connecting component of the device, a hole is made in the tympanic membrane 63. Then, the ear effusion is aspirated and cleaned, and the ear ventilation tube product is implanted. Through this device, the above operations can be performed in one operation or selected operations to complete the surgery.
[0038] Specifically, referring to Figures 1 to 9 As shown, the housing 1 of the embodiment of the present application is a hollow tube. A guiding part 2 is arranged inside the housing 1, and the guiding part 2 is a hollow tube. A prefabricated part 4 is arranged at the first end 22A of the guiding part 2, and the prefabricated part 4 is arranged at the first end 15A inside the housing 1. A ventilation tube 5 is arranged inside the prefabricated part 4, and the second end 45 of the prefabricated part 4 abuts against the first end 22A of the guiding part 2.
[0039] In this specific example, a guiding part 2 is arranged inside the outer shell 1. A prefabricated part 4 is arranged at the front end of the guiding part 2. A ventilation pipe 5 is arranged inside the prefabricated part 4. A puncturing part 3 is arranged in the channel inside the guiding part 2. The rear end of the puncturing part 3 is arranged inside a guiding piece 23. The other end of the guiding piece 23 is provided with a puncturing piece 31. A pressing piece 24 is arranged at the end of the guiding piece 31. Place the front end of the device in the external auditory canal, and the front end of the device is close to the eardrum 63. By pressing the puncturing piece 31, the front end of the puncturing piece 31 abuts against the rear end of the puncturing part 3, and the front puncturing end 35 of the puncturing part 3 slowly pierces through the eardrum 63. Stop pressing. Remove the puncturing piece 31. Slowly press the pressing piece 24. The pressing piece 24 pushes the guiding piece 23. The guiding piece 23 pushes the guiding part 2. The locking piece 21 at the front part of the guiding part 2 slowly enters into the locking groove 41 in the card slot of the prefabricated part 4. A locking piece is arranged in the card slot 41. The prefabricated part 4 slowly enters into the eardrum 63. The wing strip 51 of the ventilation pipe 5 slowly unfolds. After unfolding, release the pressing piece 24. The prefabricated part 4 retracts backward, and the placement of the ventilation pipe 5 is completed. The ventilation pipe 5 has two states inside the prefabricated part 4. One is the natural open state, and the other is the contracted state. The contracted state is as shown in the figure. The wing strip 51 is attached to the pipe body 52 and is received in the prefabricated part 4 and placed inside the front end of the outer shell 1.
[0040] Refer to Figures 3 to 6 As shown, in one example, a receiving groove is arranged inside the first end part 45A of the prefabricated part 4, and the wing strip 51 of the ventilation pipe 5 is received in the receiving groove.
[0041] In this specific example, a receiving groove 43 is arranged inside the first end part 45A of the prefabricated part 4, and the wing strip of the ventilation pipe 5 is received in the receiving groove 43. A receiving groove 43 is arranged inside the first end part 45A of the prefabricated part 4, and the extending wing strip 51 at the end of the ventilation pipe 5 is received in the receiving groove 43. Since the material of the ventilation pipe 5 is a soft material, such as silica gel, etc. Shaping and receiving the ventilation pipe 5 can reduce the volume. The ventilation pipe 5 is received, and at the same time, the volume of the surgical instrument is also reduced, which is convenient for the operation and observing the inside of the ear. When the prefabricated part 4 is pushed out, the wing head of the ventilation pipe 5 exposes from the outer shell 1, and the wing strip of the ventilation pipe 5 naturally unfolds. The wing strip is clamped inside the eardrum 63. Slowly receive the prefabricated part 4, and the pipe body 52 of the ventilation pipe 5 is separated from the prefabricated part 4. The placement of the ventilation pipe in the operation is completed.
[0042] Refer to Figure 6 and 8 As shown, in one example, a card slot 41 is arranged at the second end part 45 of the prefabricated part 4, and a limiting groove 42 is arranged on the other side of the card slot 41. The card slot 41 and the limiting groove 42 are arranged in a cross shape. A concave locking groove is arranged at the inner end of the card slot 41, and the locking groove is connected to the locking piece 21 of the guiding part 2. The first end part 22A of the guiding part 2 is provided with a locking piece 21, and a protruding locking hook is arranged at the front end of the locking piece 21.
[0043] In this specific example, for the card slots 41 at the second end 45 of the prefabricated part 4, one is a limiting card slot 42 and the other is a contraction card slot 41. The two card slots are arranged in a cross pattern around the prefabricated pipe. A locking slot 44 is provided at the bottom of the card slot 41. When the guiding part 2 moves forward, the locking hook of the locking head 211 of the front-end locking part 21 protrudes and engages with the recessed locking slot in the locking slot 44 to form a linkage component. A puncturing part 3 is arranged in the through hole 26 of the guiding part 2. The front-end limiting block 33 of the puncturing part 3 moves directionally in the limiting slot 42 of the prefabricated part 4, and a limiting stroke is set. The length of the limiting slot 42 can be adjusted, and the position of the limiting block 33 can be adjusted. When using the puncturing part 3 of the puncturing part 4 to make a prefabricated hole in the eardrum 63, to prevent the front end of the puncturing part 31 from puncturing too deeply and accidentally injuring the internal organs of the ear, a limiting component 33 is provided to control the protruding distance of the puncturing part 31 through the limiting stroke. The other card slot 41 of the prefabricated part 4 is a contraction card slot. The contraction card slot cooperates with the locking part 21 at the front end of the guiding part 2 through the card slot 41 in the prefabricated part 4 to clamp the prefabricated part 4. Under the reaction force of the spring 25 component, the prefabricated part 4 and the guiding part 2 retract backward together. At the same time, the ventilation pipe 5 is separated from the prefabricated part 4. The prefabricated part is quickly and safely stored, and the ventilation pipe 5 is released.
[0044] Referring to Figure 3 and 7 As shown, in one example, a first seal 321 and a second seal 322 are arranged in the guiding part 2, and there is a space between the first seal 321 and the second seal 322.
[0045] In this specific example, a sliding part 231 is arranged outside the guiding part 23. The sliding part 231 cooperates with the sliding groove 13 in the outer shell 1. A limiting part 14 is arranged at the front part of the sliding groove 13. The limiting part 14 holds the spring. One end of the spring abuts against the second end 22 of the guiding part 2, and the other end abuts against the limiting part 14. The cap 11 is sleeved on the end of the outer shell 1 to limit the stroke range of the guiding part 23. It can be fixed by snap-fastening or screw-fastening, or also by bonding.
[0046] Referring to Figure 2 、 3 As shown, in one example, a puncturing part 3 is arranged in the guiding part 2. A suction hole 34 is arranged in the puncturing part 3. The suction hole 34 at the front end of the puncturing part communicates with the channel at the rear end. The channel at the rear end of the puncturing part 3 is arranged between the first seal 321 and the second seal 322 of the guiding part 2. A third seal 323 is arranged at the front end of the guiding part 2.
[0047] In this specific example, the sealing member is sleeved inside the guiding portion 2, the puncturing portion 3 is inserted through the sealing member, a channel is provided on the outer side of the puncturing portion 3, one end of the channel communicates with the channel of the puncturing portion 3, and the other end communicates with the connecting pipe of the housing 1. The three sealing members form a closed environment. A passage is formed to clean the tympanic cavity 62 and aspirate the accumulated fluid according to the surgical situation. The accumulated fluid is aspirated through a negative pressure device, and the air is compressed and discharged in advance. According to the situation inside the ear, at a specific time, the valve is opened to aspirate the accumulated fluid inside the ear. The connection between the sealing member and each accessory is a transition fit, but it does not affect the normal movement between the accessories.
[0048] Referring to Figure 3 As shown, in one example, a puncturing member 31 is provided at the rear end of the puncturing portion 3, and the puncturing member 31 is inserted through the channel of the guiding member 23. A connecting pipe is provided outside the housing 1, and the connecting pipe communicates with the guiding portion 2.
[0049] In this specific example, in the A-A sectional view of the external auditory canal cutting device, the puncturing member 3 and the puncturing portion 3 are arranged in the same channel in the middle of the guiding member 23. The puncturing portion 3 is slowly pushed forward by the puncturing member 31 to puncture the tympanic membrane 63. After the puncturing of the tympanic membrane 63 is completed, the puncturing member 31 is withdrawn. The pressing member 24 is connected to the rear end of the guiding member 23. By the pressing member 24 at the rear end of the pressing device, it is guided to move forward, and the locking member 21 moves forward along the card slot 41 of the prefabricated portion 4, and the two are locked. The third sealing member 323 is provided outside the prefabricated portion 4, and the housing 1 is sleeved on the third sealing member 323 to form a closed environment. The aspiration environment forms a complete closed environment. The internal structure of the ear 6, from the outside to the inside, successively includes the tympanic membrane 63, the tympanic cavity 62, and the cochlea 61. The prefabricated portion 4 continues to move forward, and the ventilation tube 5 is pushed into the tympanic membrane 63 of the ear 6, and the wing strip 51 of the ventilation tube 5 is released. The pressing member 24 is released, and under the tension of the spring 25, the guiding portion 2 contracts backward, driving the prefabricated portion 4 to contract inward, and the puncturing member 31 moves outward at the same time, and the release of the ventilation tube 5 is completed. If it is found that there is accumulated fluid in the tympanic cavity 62 or cleaning is required, the tip of the puncturing portion 3 is inside the tympanic membrane 63, and the accumulated fluid inside the ear is aspirated through the device connected by the connecting pipe, and the aspiration of the accumulated fluid is completed. If the ear needs to be cleaned, the same method is used to repeatedly inject and aspirate the liquid inside the ear. The cleaning liquid is normal saline and a small amount of anti-inflammatory agents for cleaning. The aspiration hole 34 is placed inside the tube body 52 of the ventilation tube 5 to form a channel with the ventilation tube 5 to aspirate the liquid inside the ear.
[0050] Referring to Figures 3 to 6 As shown, the guiding member 23 is provided at the second end portion 22 of the guiding portion 2, and the guiding member 23 slides in the inner slideway at the second end portion 15 of the housing 1. One end of the elastic member is provided inside the second end portion of the housing 1, and the other end of the elastic member is provided at the bottom end face of the accommodating chamber and contacts the inner end face of the convex platform of the second end face 22 of the guiding portion 2.
[0051] In this specific example, the guiding part 2 penetrates into the outer shell 1 from the lower front end, the puncturing part 3 penetrates into the outer shell 1 from the rear end, the prefabricating part 4 completes the accommodation of the ventilation tube 5 and is pushed into the front end of the outer shell 1. The passage of the ventilation tube 5 penetrates all the puncturing ends 35 of the puncturing part 3, and the front ends of the prefabricating part 4 and the puncturing part 3 are in the same plane as the front end of the outer shell 1. The guiding member 23 penetrates into the outer shell 1 from the rear end, and the through hole in the middle penetrates into the rear end of the puncturing part 3, and then the cap is fixed to the rear end of the outer shell 1. The rear end of the guiding member 23 extends out of the rear part of the cap 11, the pressing member 24 is fixed to the rear end of the guiding member 23, a through hole is provided in the middle of the pressing member 24, and the through hole is larger than or equal to the through hole in the middle of the guiding member 23. The spring 25 (elastic member) is arranged between the inner tube at the rear end of the outer shell and the limiting part 14 on the guiding part 2. The puncturing member 31 penetrates into the through hole of the guiding member 23, and the end abuts against the end face at the rear end of the puncturing part 3, and the instrument is assembled. Observe the situation of the ear canal through the endoscope, place the assembled device in the external auditory canal, position the positioning device, and perform surgical operations.
[0052] Refer to Figure 7 , 8 , as shown in Figure 9, in one example, the outer shell 1 enters the external auditory canal, the puncturing member 31 is inserted into the rear end, the front end of the puncturing needle pierces the tympanic membrane 63, and the pressing member 24 is pressed to separate the ventilation tube 5 from the prefabricating part 4, and the ventilation tube 5 is placed in the perforation of the tympanic membrane 63.
[0053] In this specific example, the distance of the puncture tip extending into the tympanic membrane 63 is determined by observing the scale on the push rod of the puncture member 31, and the position of the tip of the front part of the puncture member 3 is controlled. The device position is measured and positioned in advance, and the position of the puncture member 3 is pushed according to the preset position of the ventilation tube 5. The puncture member 3 is delivered safely and effectively, and the scale position is observed intuitively. After the puncture of the tympanic membrane 63 is perforated, the puncture member 31 is withdrawn, and the puncture member 31 may not be withdrawn. At this time, the pressing member 24 is pressed, and the front end lock of the guide part 2 moves forward along the slide groove 13. When the lock 21 reaches the lock position to be prefabricated in the prefabricated part 4, the two parts are locked. Continue to press the prefabricated part 4 to move forward, move the ventilation tube 5 forward, the inner hole of the ventilation tube 5 is sleeved on the puncture part 3, and the ventilation tube 5 moves forward along the puncture part 3. When the end of the wing strip 51 of the ventilation tube 5 is separated from the front end of the shell 1, the wing strip 51 of the ventilation tube 5 opens under the elastic action to form a "T" structure. At this time, the wing strip 51 of the ventilation tube 5 is just placed in the tympanic membrane 63, and the tube body 52 of the ventilation tube 5 is placed in the perforation of the tympanic membrane 63. At this time, the pressing piece 24 is released, and under the tension of the return spring 25, the guide part 2 is reset. Since the guide part 2 and the prefabricated part 4 are locked, the guide part 2 drives the prefabricated part 4 to move backward, and the ventilation is separated from the prefabricated part 4. If there is fluid accumulation in the ear, at this time, the puncture part 3 is placed in the tympanic cavity 62, and after the negative pressure device is connected to the connecting pipe 12, the fluid in the ear is washed out by adjusting the valve and the negative pressure device. If it is necessary to clean the ear, physiological saline or medicine is placed in the negative pressure device, and the negative pressure device is pressed to repeatedly clean the ear. The above-mentioned surgical procedure is completed. The ventilation tube 5 insertion device is slowly pulled out, and the operation is completed. The ear is observed through a speculum, and it is intact, and the operation is successful.
[0054] In the description of the present application, it should be noted that the terms "upper", "lower", "inside", "outside", "front", "back", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships in the working state of the present application. 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 direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the present application.
[0055] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "install", "connect" and "connect" should be understood in a broad sense. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0056] The present application has been described above in conjunction with preferred embodiments, but these embodiments are only exemplary and serve only as an illustration. On this basis, various replacements and improvements may be made to the present application, all of which fall within the scope of protection of the present application.
Claims
1. An implanted ventilation tube device for treating otitis media, characterized in that, Comprising: A housing (1), the housing (1) being a hollow tube, a guiding portion (2) is arranged inside the housing (1), the guiding portion (2) being a hollow tube, a prefabricated portion (4) is arranged at the first end portion (22A) of the guiding portion (2), the prefabricated portion (4) is arranged at the first end portion (15A) inside the housing (1), a ventilation pipe (5) is arranged inside the prefabricated portion (4), and the second end portion (45) of the prefabricated portion (4) abuts against the first end portion (22A) of the guiding portion (2).
2. The ventilation tube implanting device for treating otitis media according to claim 1, wherein: A receiving groove is arranged inside the first end portion (45A) of the prefabricated portion (4), and the receiving groove is used for receiving the wing strips (51) of the ventilation pipe (5).
3. The ventilation tube implantation device for treating otitis media according to claim 2, characterized in that: A clamping groove (41) is arranged at the second end portion (45) of the prefabricated portion (4), and a limiting groove (42) is arranged on the other side of the clamping groove (41).
4. The ventilation tube implantation device for treating otitis media according to claim 3, wherein: A locking member (21) is arranged at the first end portion (22A) of the guiding portion (2), and a protruding locking hook is arranged at the front end of the locking member (21).
5. The ventilation tube implantation device for treating otitis media according to claim 4, characterized in that: The clamping groove (41) and the limiting groove (42) are arranged in a crosswise manner, and a locking groove is arranged at the inner end portion of the clamping groove (41), and the locking groove is connected to the locking member (21) of the guiding portion (2).
6. The ventilation tube implantation device for treating otitis media according to claim 5, characterized in that: A guiding member (23) is arranged at the second end portion (22) of the guiding portion (2), and the guiding member (23) slides in the inner sliding track of the second end portion (15) of the housing (1). One end of an elastic member is arranged inside the second end portion of the housing (1), and the other end of the elastic member is arranged at the bottom end face of the receiving chamber and contacts the inner end face of the boss of the second end face (22) of the guiding portion (2).
7. The ventilation tube implantation device for treating otitis media according to claim 6, characterized in that: A first sealing member (321) and a second sealing member (322) are arranged inside the guiding portion (2), a space is arranged between the first sealing member (321) and the second sealing member (322), and a third sealing member (323) is arranged at the front end of the guiding portion (2).
8. The ventilation tube implantation device for treating otitis media according to claim 7, wherein: A puncturing portion (3) is arranged inside the guiding portion (2), a channel is arranged inside the puncturing portion (3), a suction hole (34) at the front end of the puncturing portion (3) is communicated with the channel at the rear end, and the channel at the rear end of the puncturing portion (3) is arranged between the first sealing member (321) and the second sealing member (322) of the guiding portion (2).
9. The ventilation tube implantation device for treating otitis media according to claim 8, wherein: A puncturing member (31) is arranged at the rear end of the puncturing portion (3), and the puncturing member (31) penetrates through the channel of the guiding member (23).
10. The ventilation tube implantation device for treating otitis media according to claim 1, characterized in that: A connecting pipe is arranged outside the housing (1), and the connecting pipe is communicated with the guiding portion (2).