Tympanic membrane breather pipe assembly

Abstract

The tympanic membrane breather pipe assembly comprises a tympanic membrane breather pipe imbedding device and a tympanic membrane breather pipe, the tympanic membrane breather pipe imbedding device comprises an imbedding pipe, a pipe imbedding device and a puncture needle, the imbedding pipe is of a hollow structure, and the imbedding pipe comprises a first end and a second end which are oppositely arranged; the tube indwelling device comprises a mounting seat and a needle column which are connected with each other, the mounting seat is detachably connected to the second end part of the indwelling tube, and the needle column is accommodated in the indwelling tube; a storage groove is formed in the mounting seat; the puncture needle has a first state and a second state, and in the first state, the puncture needle is partially inserted into the containing groove; in the second state, the puncture needle is mounted at the first end part of the delivery tube; the tympanic membrane breather pipe has a contracted state and an expanded state, and in the contracted state, the tympanic membrane breather pipe can be assembled at the first end part of the placing and conveying pipe; and under the condition that the tympanic membrane breather pipe is separated from the feeding pipe, the tympanic membrane breather pipe is switched from the contraction state to the expansion state.

Description

Technical Field

[0001] This application relates to the field of medical device technology, and more specifically, to a tympanic membrane ventilation tube assembly. Background Technology

[0002] A tympanic membrane ventilator is a miniature hollow tube surgically placed on the tympanic membrane to connect the middle ear cavity to the external auditory canal and maintain continuous ventilation. Tympanic membrane ventilators help balance middle ear pressure, drain middle ear effusion, and prevent middle ear infections. They are primarily used to treat secretory otitis media, recurrent acute otitis media, and eustachian tube dysfunction, and can also be used to prevent barotrauma of the ear.

[0003] During tympanic membrane ventilation tube placement surgery, the tympanic membrane is first incised with a puncture needle, and then the tympanic membrane ventilation tube is placed at the incision site using an insertion device. In existing technologies, other instruments are usually required to insert the tympanic membrane ventilation tube into the insertion device; furthermore, the puncture needle and the insertion device are typically two separate components. Therefore, existing tympanic membrane ventilation tube insertion devices present numerous inconveniences in use.

[0004] Therefore, a new technical solution is needed to solve the above-mentioned technical problems. Utility Model Content

[0005] One objective of this application is to provide a new technical solution for a tympanic membrane ventilation tube assembly.

[0006] According to a first aspect of this application, a tympanic membrane ventilation tube assembly is provided, the tympanic membrane ventilation tube assembly comprising:

[0007] A tympanic membrane ventilation tube insertion device includes an insertion tube, an inserter, and a puncture needle. The insertion tube has a hollow structure and includes a first end and a second end disposed opposite to each other. The inserter includes a mounting base and a needle post connected to each other. The mounting base is detachably connected to the second end of the insertion tube, and the needle post is accommodated within the insertion tube. The mounting base has a receiving groove. The puncture needle has a first state and a second state. In the first state, the puncture needle is partially inserted into the receiving groove; in the second state, the puncture needle is installed at the first end of the insertion tube.

[0008] The tympanic membrane ventilation tube has a contracted state and an extended state. In the contracted state, the tympanic membrane ventilation tube can be fitted to the first end of the delivery tube. When the tympanic membrane ventilation tube is detached from the delivery tube, the tympanic membrane ventilation tube switches from the contracted state to the extended state.

[0009] Optionally, the tympanic membrane ventilation tube includes a tube body and a locking part that are connected to each other. In the unfolded state, the tube body and the locking part are connected in a T-shape.

[0010] Optionally, the delivery tube has two oppositely arranged and interconnected openings at its first end.

[0011] Optionally, the tympanic membrane ventilation tube further includes a boss portion, which is disposed at the end of the tube body portion away from the engaging portion, and the sidewall of the boss portion protrudes from the sidewall of the tube body portion.

[0012] Optionally, the delivery tube has an opening groove and a notch at its first end, the opening groove and the notch are interconnected and arranged sequentially along the axial direction near the second end of the delivery tube, and the opening size of the notch is larger than the opening size of the opening groove.

[0013] Optionally, the tympanic membrane ventilation tube includes a tube body, a boss portion, and a drainage portion, wherein the boss portion and the drainage portion are respectively connected to both ends of the tube body; the sidewall of the drainage portion protrudes from the sidewall of the tube body, and the sidewall of the boss portion protrudes from the sidewall of the drainage portion; the drainage portion has a drainage notch.

[0014] Optionally, in the first state, the length of the puncture needle inserted into the receiving groove is / to / of the total length of the puncture needle.

[0015] Optionally, the mounting base includes a first column segment and a second column segment connected to each other, wherein the diameter of the first column segment is smaller than the diameter of the second column segment; the pin is disposed at the end of the first column segment away from the second column segment;

[0016] The first column segment is threadedly connected to the second end of the delivery tube, and the receiving groove is formed in the second column segment.

[0017] Optionally, an annular platform is formed between the first column segment and the second column segment, and the annular platform abuts against the end face of the second end of the delivery tube.

[0018] Optionally, the delivery tube includes a first tube body, a second tube body, and a push rod;

[0019] Both the first tube and the second tube are hollow structures. The proximal end of the second tube is sleeved inside the first tube, and the distal end of the second tube is configured to assemble a tympanic membrane ventilation tube.

[0020] The push rod passes through the first tube and the second tube, and the push rod is axially movable within the first tube and the second tube.

[0021] Optionally, the push rod includes a rod body, a linkage part, and a pushing part; the linkage part is connected to the proximal end of the rod body, and the pushing part is connected to the distal end of the rod body;

[0022] The linkage is configured to drive the rod body and the pushing part to move axially under the action of external force; the pushing part is configured to push the tympanic membrane ventilation tube.

[0023] Optionally, the puncture needle is magnetically connected to the pusher in the second state.

[0024] Optionally, the puncture needle is made of magnetic material, and the pushing part is made of metal.

[0025] Optionally, the tympanic membrane ventilation tube insertion device further includes a push handle, and the first tube body has an opening on its side wall, and the push handle is connected to the linkage part at the opening.

[0026] Optionally, the tympanic membrane ventilation tube insertion device further includes a bracket, the bracket having a first connecting hole and a second connecting hole, the bracket being sleeved with the insertion tube at the first connecting hole, and the second connecting hole being configured for installing an endoscope.

[0027] The tympanic membrane ventilation tube assembly provided in this application embodiment is convenient to use, safe and hygienic, and helps to improve surgical efficiency and shorten surgical time.

[0028] Other features and advantages of this application will become clear from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description

[0029] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the present application and, together with their description, serve to explain the principles of the present application.

[0030] Figure 1 This is a schematic diagram of the overall structure of the tympanic ventilator insertion device in a tympanic ventilator assembly according to an embodiment of this application. Figure 1 ;

[0031] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0032] Figure 3 This is an exploded structural diagram of the tympanic ventilator insertion device in a tympanic ventilator assembly according to an embodiment of this application;

[0033] Figure 4 This is a cross-sectional view of the tympanic ventilator insertion device in a tympanic ventilator assembly according to an embodiment of this application;

[0034] Figure 5 yes Figure 4 Enlarged view of point B in the middle;

[0035] Figure 6 This is a schematic diagram of the structure of the bracket of the tympanic ventilator insertion device in a tympanic ventilator assembly according to an embodiment of this application;

[0036] Figure 7 This is a schematic diagram of the structure of a tympanic membrane ventilation tube assembly according to an embodiment of this application;

[0037] Figure 8 This is a schematic diagram of the structure of the tympanic ventilator in a tympanic ventilator assembly according to an embodiment of this application. Figure 1 ;

[0038] Figure 9 This is a schematic diagram of the engagement between the tympanic ventilator and the second tube body in a tympanic ventilator assembly according to an embodiment of this application;

[0039] Figures 10-11 This is a schematic diagram of the working state of the tympanic ventilator in a tympanic ventilator assembly according to an embodiment of this application;

[0040] Figure 12 This is a schematic diagram of the structure of the tympanic ventilator in a tympanic ventilator assembly according to an embodiment of this application. Figure 2 .

[0041] Explanation of reference numerals in the attached figures:

[0042] 1. Tympanic membrane ventilation tube insertion device; 11. Delivery tube; 111. First tube body; 112. Second tube body; 1120. Opening groove; 1121. Notch; 110. Opening; 113. Push rod; 1131. Rod body; 1132. Linkage part; 1133. Pushing part; 12. Tube inserter; 121. Mounting base; 1211. First column section; 1212. Second column section; 1210. Ring platform; 122. Needle column; 120. Receiving groove; 13. Puncture needle; 14. Push handle; 15. Support; 151. First connecting hole; 152. Second connecting hole;

[0043] 2. Tympanic membrane ventilation tube; 21. Tube body; 22. Engaging part; 23. Protrusion part; 24. Drainage part; 240. Drainage notch. Detailed Implementation

[0044] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the present application.

[0045] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the scope of this application and its application or use.

[0046] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0047] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0048] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures.

[0049] Reference Figures 1-12 As shown, according to one embodiment of this application, a tympanic membrane ventilation tube assembly is provided. The tympanic membrane ventilation tube assembly includes a tympanic membrane ventilation tube insertion device 1 and a tympanic membrane ventilation tube 2. The tympanic membrane ventilation tube insertion device 1 includes an insertion tube 11, an inserter 12, and a puncture needle 13. The insertion tube 11 has a hollow structure and includes a first end and a second end disposed opposite to each other. The first end can be used to assemble the tympanic membrane ventilation tube 2.

[0050] The tube inserter 12 includes a mounting base 121 and a needle post 122 connected to each other. The mounting base 121 is detachably connected to the second end of the insertion tube 11, and the needle post 122 is accommodated in the insertion tube 11. The mounting base 121 is provided with a storage groove 120.

[0051] The puncture needle 13 has a first state and a second state. In the first state, the puncture needle 13 is partially inserted into the receiving groove 120. In the second state, the puncture needle 13 is installed at the first end of the delivery tube 11.

[0052] The tympanic membrane ventilation tube 2 has a contracted state and an extended state. In the contracted state, the tympanic membrane ventilation tube 2 can be fitted to the first end of the delivery tube 11. When the tympanic membrane ventilation tube 2 is detached from the delivery tube 11, the tympanic membrane ventilation tube 2 switches from the contracted state to the extended state.

[0053] The tympanic ventilator insertion device 1 in the tympanic ventilator assembly provided in this application embodiment will be described in detail below:

[0054] The tympanic membrane ventilation tube insertion device 1 can be used to insert a tympanic membrane ventilation tube into the patient's tympanic membrane. When the tympanic membrane needs to be intubated, the puncture needle 13 is first removed from the intubator 12 and installed at the first end of the delivery tube 11. At this time, the puncture needle 13 is housed in the cavity of the delivery tube 11 corresponding to its first end.

[0055] When tympanic membrane puncture is required, the puncture needle 13 is slowly pushed out through the delivery tube 11 to complete the tympanic membrane puncture. After the puncture, the puncture needle 13 is removed from the first end of the delivery tube 11, and then the tympanic membrane ventilation tube 2 is attached to the first end of the delivery tube 11. Since some shaped tympanic membrane ventilation tubes are not easy to enter the cavity of the delivery tube 11, the intubator 12 needs to be removed from the second end of the delivery tube 11. The tympanic membrane ventilation tube is pressed into the cavity of the delivery tube 11 by means of the needle column 122 of the intubator 12. The mounting base 121 of the intubator 12 is detachably connected to the second end of the delivery tube 11, and the operator can easily remove the intubator 12 from the delivery tube 11. Finally, the first end of the delivery tube 11 is slowly placed into the tympanic membrane perforation, and then the tympanic membrane ventilation tube is slowly pushed out of the delivery tube 11. After the tympanic membrane ventilation tube is inserted into the tympanic membrane, the delivery tube 11 is withdrawn, and the operation is completed. The tympanic membrane ventilation tube can guide the effusion in the ear to flow out from the tube.

[0056] Before using the tympanic membrane ventilation tube insertion device 1 provided in this application embodiment, the intubator 12 for assisting in the assembly of the tympanic membrane ventilation tube and the puncture needle 13 for puncturing the tympanic membrane are both installed on the delivery tube 11, that is, the intubator 12, the puncture needle 13 and the delivery tube 11 are a set of instruments; thus, the entire process of tympanic membrane puncture, tympanic membrane ventilation tube assembly and tympanic membrane ventilation tube insertion can be completed without the need for other tools. Therefore, the tympanic membrane ventilation tube insertion device has a high degree of functional integration, is convenient to use and safe and hygienic, and is conducive to improving surgical efficiency and shortening surgical time.

[0057] Reference Figure 4 , Figure 5 As shown, in one embodiment, in the first state, the length of the puncture needle 13 inserted into the receiving groove 120 is 1 / 2 to 2 / 3 of the total length of the puncture needle 13.

[0058] If the length of the puncture needle 13 inserted into the receiving groove 120 is too short, the stability of the puncture needle 13 in the receiving groove 120 will be poor, and there is a risk that the puncture needle 13 will fall out of the receiving groove 120. On the other hand, if the length of the puncture needle 13 inserted into the receiving groove 120 is too long, on the one hand, the tube inserter 12 needs to be of a longer size, and on the other hand, there is a possibility that the puncture needle 13 will be difficult to remove from the receiving groove 120. Therefore, in this specific example, the length of the puncture needle 13 inserted into the receiving groove 120 is set to 1 / 2 to 2 / 3 of the total length of the puncture needle 13, which ensures both the stability of the puncture needle 13 in the receiving groove 120 and the ease of removal of the puncture needle 13 from the receiving groove 120.

[0059] Understandably, in the first state, the tip of the puncture needle 13 is inserted into the storage groove 120, and the tail of the puncture needle 13 is exposed outside the storage groove 120.

[0060] Reference Figure 4 , Figure 5 As shown, in one embodiment, the mounting base 121 includes a first column segment 1211 and a second column segment 1212 connected to each other, wherein the diameter of the first column segment 1211 is smaller than the diameter of the second column segment 1212; the pin 122 is disposed at the end of the first column segment 1211 away from the second column segment 1212.

[0061] The first column segment 1211 is threadedly connected to the second end of the delivery tube 11, and the receiving groove 120 is formed in the second column segment 1212.

[0062] In this specific example, the first column segment 1211 of the mounting base 121 is screwed into the second end of the delivery tube 11 via a threaded connection, enabling a detachable connection between the mounting base 121 and the delivery tube 11, making installation and disassembly very convenient. The second column segment 1212 of the mounting base 121 is located outside the delivery tube 11. The outer diameter of the first column segment 1211 is smaller than the outer diameter of the second end of the delivery tube 11, while the outer diameter of the second column segment 1212 is the same as the outer diameter of the second end of the delivery tube 11. This results in a more aesthetically pleasing connection between the tube inserter 12 and the delivery tube 11. Furthermore, when the tube inserter 12 is connected to the delivery tube 11, the needle column 122 is completely contained within the delivery tube 11, thus protecting both the needle column 122 and the operator, preventing accidental injury from the needle column 122 and preventing damage from collisions.

[0063] Reference Figure 5 As shown, in one embodiment, an annular platform 1210 is formed between the first column segment 1211 and the second column segment 1212, and the annular platform 1210 abuts against the end face of the second end of the delivery tube 11.

[0064] In this specific example, the annular platform 1210 formed at the junction of the first column segment 1211 and the second column segment 1212 abuts against the end face of the second end of the delivery tube 11, so that the connection between the tube inserter 12 and the delivery tube 11 is more compact and stable.

[0065] Reference Figure 1 , Figure 3 , Figure 4 As shown, in one embodiment, the delivery tube 11 includes a first tube body 111, a second tube body 112, and a push rod 113;

[0066] Both the first tube 111 and the second tube 112 are hollow structures. The proximal end of the second tube 112 is sleeved inside the first tube 111, and the distal end of the second tube 112 is configured to assemble a tympanic membrane ventilation tube.

[0067] The push rod 113 passes through the first tube 111 and the second tube 112, and the push rod 113 is axially movable within the first tube 111 and the second tube 112.

[0068] In this specific example, the first tube 111 and the second tube 112 are arranged axially, with the proximal end of the second tube 112 sleeved inside the first tube 111, so that the end of the first tube 111 away from the second tube 112 constitutes the second end of the delivery tube 11, and the distal end of the second tube 112 (that is, the end of the second tube 112 away from the first tube 111) constitutes the first end of the delivery tube 11.

[0069] A portion of the push rod 113 passes through the cavity of the first tube 111, and another portion passes through the cavity of the second tube 112. In use, the operator pushes the push rod 113 axially to push the tympanic ventilator tube out of the delivery tube 11.

[0070] Furthermore, the push rod 113 is made of plastic metal; the second tube 112 has a shape adapted to the push rod 113, for example, the distal end of the second tube 112 and the distal end of the push rod 113 are both curved, so as to facilitate entry into the patient's ear.

[0071] Reference Figure 3 As shown, in one embodiment, the push rod 113 includes a rod body 1131, a linkage part 1132, and a pushing part 1133; the linkage part 1132 is connected to the proximal end of the rod body 1131, and the pushing part 1133 is connected to the distal end of the rod body 1131.

[0072] The linkage 1132 is configured to drive the rod body 1131 and the pushing part 1133 to move axially under the action of external force; the pushing part 1133 is configured to push the tympanic membrane ventilation tube.

[0073] In this specific example, the linkage 1132 is used to receive the operator's pushing force; for example, the tympanic membrane ventilation tube insertion device also includes a push handle 14, and the first tube body 111 has an opening 110 on its side wall. The push handle 14 is connected to the linkage 1132 at the opening 110. In use, the operator pushes the push handle 14 by hand, and the push handle 14 drives the linkage 1132, which in turn drives the rod body 1131 and the pushing part 1133 to move axially. The outer diameter of the pushing part 1133 is larger than the outer diameter of the rod body 1131, so that the pushing part 1133 can form good contact with the tympanic membrane ventilation tube, and can effectively push the tympanic membrane ventilation tube to move while the pushing part 1133 moves axially.

[0074] In one embodiment, the puncture needle 13 is magnetically connected to the pusher 1133 in the second state.

[0075] In this specific example, for instance, the puncture needle 13 is made of magnetic material, while the pusher part 1133 is made of plastic metal. When the puncture needle 13 is removed from the catheter 12 and installed at the first end of the delivery tube 11, the puncture needle 13 and the pusher part 1133 are attracted together, thereby firmly fixing the puncture needle 13 at the first end of the delivery tube 11, preventing the puncture needle 13 from falling off during use, and improving the safety of the operation.

[0076] Reference Figure 1 , Figure 3 As shown, in one embodiment, the tympanic membrane ventilation tube insertion device further includes a bracket 15, the bracket 15 having a first connecting hole 151 and a second connecting hole 152, the bracket 15 being sleeved with the insertion tube 11 at the first connecting hole 151, and the second connecting hole 152 being configured for installing an endoscope.

[0077] In this specific example, by setting up a support 15 and mounting an endoscope on the support 15, the surgical procedure can be visually observed, improving the safety and success rate of the surgery. Specifically, the support 15 is installed near the distal end of the second tube 112.

[0078] Reference Figure 7As shown, the tympanic membrane ventilation tube assembly provided in this application embodiment includes the tympanic membrane ventilation tube insertion device 1 as described above, and also includes a tympanic membrane ventilation tube 2; the tympanic membrane ventilation tube 2 has a contracted state and an extended state. In the contracted state, the tympanic membrane ventilation tube 2 can be assembled to the first end of the delivery tube 11; when the tympanic membrane ventilation tube 2 is disengaged from the delivery tube 11, the tympanic membrane ventilation tube 2 switches from the contracted state to the extended state.

[0079] The tympanic membrane ventilation tube assembly provided in this application embodiment includes the aforementioned tympanic membrane ventilation tube insertion device 1, which is convenient to use, safe and hygienic, and helps to improve surgical efficiency and shorten surgical time.

[0080] Reference Figure 7 , Figure 8 As shown, in one embodiment, the tympanic membrane ventilation tube 2 includes a tube body 21 and a locking part 22 connected to each other. In the unfolded state, the tube body 21 and the locking part 22 are connected in a T-shape.

[0081] In this specific example, the tympanic membrane ventilation tube 2 includes a tube body 21 and a locking part 22. In the unfolded state, the tympanic membrane ventilation tube 2 is T-shaped, that is, one end of the tube body 21 is connected to the middle of the locking part 22. The T-shaped tympanic membrane ventilation tube 2 can be securely locked at the tympanic membrane perforation. During the process of assembling the tympanic membrane ventilation tube 2 into the second tube body 112, the tube body 21 can enter the second tube body 112 relatively smoothly, while the locking part 22, because it is arranged laterally relative to the second tube body 112, is more difficult to enter the second tube body 112. Therefore, it is necessary to use the needle column 122 of the tube inserter 12 to press it into the cavity of the second tube body 112.

[0082] Reference Figure 2 As shown, in one embodiment, the delivery tube 11 has two oppositely arranged and interconnected opening slots 1120 at its first end.

[0083] In this specific example, when the tympanic membrane ventilation tube 2 is installed into the second tube body 112, the two opening slots 1120 correspond to the structures of the engaging part 22 located on both sides of the tube body 21. The engaging part 22 is pressed into the cavity of the second tube body 112 by the needle column 122 of the tube inserter 12 through the two opening slots 1120. The opening slots 1120 ensure that the engaging part 22 smoothly enters the second tube body 112.

[0084] Reference Figure 8 , Figure 9 As shown, in one embodiment, the tympanic membrane ventilation tube 2 further includes a boss portion 23, which is disposed at the end of the tube body portion 21 away from the engaging portion 22, and the sidewall of the boss portion 23 protrudes from the sidewall of the tube body portion 21.

[0085] In this specific example, the boss portion 23 is coaxially connected to the end of the tube portion 21 away from the engaging portion 22. The outer diameter of the boss portion 23 is larger than the outer diameter of the tube portion 21, so that the side wall of the boss portion 23 protrudes from the side wall of the tube portion 21. The boss portion 23 can cooperate with the engaging portion 22 to engage the tympanic membrane, effectively preventing the tympanic membrane ventilation tube 2 from falling into the middle ear.

[0086] Reference Figure 9 As shown, in one embodiment, the delivery tube 11 has an opening groove 1120 and a notch 1121 at its first end. The opening groove 1120 and the notch 1121 are interconnected and arranged sequentially along the axial direction close to the second end of the delivery tube 11. The opening size of the notch 1121 is larger than the opening size of the opening groove 1120.

[0087] In this specific example, when installing the tympanic ventilator tube 2, the notch 1121 with a larger opening size corresponds to the boss 23 with a larger outer diameter, and the opening groove 1120 with a smaller opening size corresponds to the tube body 21 with a smaller outer diameter; thereby ensuring that the tympanic ventilator tube 2 can be smoothly assembled into the second tube body 112.

[0088] Reference Figure 12 Another structure of the tympanic membrane ventilation tube 2 is shown, which includes a tube body 21, a boss 23, and a drainage section 24. The boss 23 and the drainage section 24 are respectively connected to the two ends of the tube body 21. The sidewall of the drainage section 24 protrudes from the sidewall of the tube body 21, and the sidewall of the boss 23 protrudes from the sidewall of the drainage section 24. The drainage section 24 has a drainage notch 240.

[0089] In this tympanic membrane ventilation tube 2, the drainage portion 24, the tube body portion 21, and the boss portion 23 are coaxially connected in sequence; among them, the outer diameter of the boss portion 23 is the largest, followed by the drainage portion 24, and the outer diameter of the tube body portion 21 is the smallest. The boss portion 23 and the drainage portion 24 can cooperate with each other to lock the tympanic membrane; and the drainage notch 240 opened in the drainage portion 24 helps to guide the fluid in the ear.

[0090] The above embodiments mainly describe the differences between the various embodiments. As long as the different optimization features between the various embodiments are not contradictory, they can be combined to form a better embodiment. For the sake of brevity, they will not be elaborated here.

[0091] While specific embodiments of this application have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of this application. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of this application. The scope of this application is defined by the appended claims.

Claims

1. A tympanic membrane ventilation tube assembly, characterized in that, The tympanic membrane ventilation tube assembly includes: A tympanic membrane ventilation tube insertion device (1) includes an insertion tube (11), an inserter (12), and a puncture needle (13). The insertion tube (11) has a hollow structure and includes a first end and a second end arranged opposite to each other. The inserter (12) includes a mounting base (121) and a needle post (122) connected to each other. The mounting base (121) is detachably connected to the second end of the insertion tube (11), and the needle post (122) is accommodated in the insertion tube (11). The mounting base (121) has a receiving groove (120). The puncture needle (13) has a first state and a second state. In the first state, the puncture needle (13) is partially inserted into the receiving groove (120). In the second state, the puncture needle (13) is installed at the first end of the insertion tube (11). The tympanic membrane ventilation tube (2) has a contracted state and an extended state. In the contracted state, the tympanic membrane ventilation tube (2) can be fitted to the first end of the delivery tube (11). When the tympanic membrane ventilation tube (2) is detached from the delivery tube (11), the tympanic membrane ventilation tube (2) switches from the contracted state to the extended state.

2. The tympanic membrane ventilation tube assembly according to claim 1, characterized in that, The tympanic membrane ventilation tube (2) includes a tube body (21) and a locking part (22) connected to each other. In the unfolded state, the tube body (21) and the locking part (22) are connected in a T-shape.

3. The tympanic membrane ventilation tube assembly according to claim 2, characterized in that, The delivery tube (11) has two oppositely arranged and interconnected openings (1120) at its first end.

4. The tympanic membrane ventilation tube assembly according to claim 2, characterized in that, The tympanic membrane ventilation tube (2) also includes a boss (23), which is located at the end of the tube body (21) away from the engaging part (22), and the side wall of the boss (23) protrudes from the side wall of the tube body (21).

5. The tympanic membrane ventilation tube assembly according to claim 4, characterized in that, The delivery tube (11) has an opening groove (1120) and a notch (1121) at its first end. The opening groove (1120) and the notch (1121) are interconnected and arranged axially close to the second end of the delivery tube (11). The opening size of the notch (1121) is larger than the opening size of the opening groove (1120).

6. The tympanic membrane ventilation tube assembly according to claim 1, characterized in that, The tympanic membrane ventilation tube (2) includes a tube body (21), a boss (23), and a drainage section (24). The boss (23) and the drainage section (24) are respectively connected to both ends of the tube body (21). The side wall of the drainage section (24) protrudes from the side wall of the tube body (21), and the side wall of the boss (23) protrudes from the side wall of the drainage section (24). The drainage section (24) has a drainage notch (240).

7. The tympanic membrane ventilation tube assembly according to claim 1, characterized in that, In the first state, the length of the puncture needle (13) inserted into the receiving groove (120) is 1 / 2 to 2 / 3 of the total length of the puncture needle (13).

8. The tympanic membrane ventilation tube assembly according to claim 1, characterized in that, The mounting base (121) includes a first column segment (1211) and a second column segment (1212) connected to each other, wherein the diameter of the first column segment (1211) is smaller than the diameter of the second column segment (1212); the pin (122) is disposed at the end of the first column segment (1211) away from the second column segment (1212); The first column segment (1211) is threadedly connected to the second end of the delivery tube (11), and the receiving groove (120) is opened in the second column segment (1212).

9. The tympanic membrane ventilation tube assembly according to claim 8, characterized in that, An annular platform (1210) is formed between the first column segment (1211) and the second column segment (1212), and the annular platform (1210) abuts against the end face of the second end of the delivery tube (11).

10. The tympanic membrane ventilation tube assembly according to claim 1, characterized in that, The delivery tube (11) includes a first tube body (111), a second tube body (112), and a push rod (113); Both the first tube (111) and the second tube (112) are hollow structures. The proximal end of the second tube (112) is fitted inside the first tube (111), and the distal end of the second tube (112) is configured to assemble a tympanic membrane ventilation tube. The push rod (113) passes through the first tube (111) and the second tube (112), and the push rod (113) is axially movable within the first tube (111) and the second tube (112).

11. The tympanic membrane ventilation tube assembly according to claim 10, characterized in that, The push rod (113) includes a rod body (1131), a linkage part (1132), and a pushing part (1133); the linkage part (1132) is connected to the proximal end of the rod body (1131), and the pushing part (1133) is connected to the distal end of the rod body (1131); The linkage (1132) is configured to drive the rod body (1131) and the pusher (1133) to move axially under the action of external force; the pusher (1133) is configured to push the tympanic membrane ventilation tube.

12. The tympanic membrane ventilation tube assembly according to claim 11, characterized in that, The puncture needle (13) is magnetically connected to the pusher (1133) in the second state.

13. The tympanic membrane ventilation tube assembly according to claim 12, characterized in that, The puncture needle (13) is made of magnetic material, and the pushing part (1133) is made of metal.

14. The tympanic membrane ventilation tube assembly according to claim 11, characterized in that, The tympanic membrane ventilation tube insertion device also includes a push handle (14), and the first tube body (111) has an opening (110) on its side wall. The push handle (14) is connected to the linkage part (1132) at the opening (110).

15. The tympanic membrane ventilation tube assembly according to claim 1 or 10, characterized in that, The tympanic membrane ventilation tube insertion device also includes a bracket (15), which has a first connecting hole (151) and a second connecting hole (152). The bracket (15) is sleeved with the insertion tube (11) at the first connecting hole (151), and the second connecting hole (152) is configured for installing an endoscope.

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