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] The present application relates to the technical field of medical devices, and more specifically, to a tympanostomy tube assembly. Background Art

[0002] A tympanostomy tube is a miniature hollow tube placed on the tympanic membrane through surgery, used to communicate the middle ear cavity with the external auditory canal and maintain continuous ventilation. The tympanostomy tube can balance the middle ear pressure, drain middle ear effusion, and prevent middle ear infections. Tympanostomy tubes are mainly used to treat secretory otitis media, recurrent acute otitis media, eustachian tube dysfunction and other diseases, and can also be used to prevent ear barotrauma.

[0003] When performing the tympanostomy tube placement surgery, first, the tympanic membrane needs to be incised through a puncture needle, and then the tympanostomy tube is placed at the tympanic membrane incision through an insertion device. In the prior art, when installing the tympanostomy tube onto the insertion device, other instruments are usually required; moreover, the puncture needle and the insertion device are usually two independently provided devices. Therefore, there are many inconveniences in using the tympanostomy tube insertion device in the prior art.

[0004] In view of this, a new technical solution is needed to solve the above technical problems. Summary of the Invention

[0005] An object of the present application is to provide a new technical solution for a tympanostomy tube assembly.

[0006] According to the first aspect of the present application, there is provided a tympanostomy tube assembly, the tympanostomy tube assembly comprising:

[0007] A tympanostomy tube insertion device, the tympanostomy tube insertion device comprising a delivery tube, an inserter, and a puncture needle. The delivery tube is of a hollow structure and comprises a first end and a second end arranged opposite to each other; the inserter comprises a mounting base and a needle column connected to each other. The mounting base is detachably connected to the second end of the delivery tube, and the needle column is received in the delivery tube; the mounting base is provided with 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 mounted at the first end of the delivery tube.

[0008] A tympanostomy tube, the tympanostomy tube having a contracted state and an expanded state. In the contracted state, the tympanostomy tube can be assembled at the first end of the delivery tube; when the tympanostomy tube is separated from the delivery tube, the tympanostomy tube switches from the contracted state to the expanded state.

[0009] Optionally, the tympanostomy tube includes a tube body portion and a clamping portion connected to each other. In the deployed state, the tube body portion and the clamping portion are connected in a T shape.

[0010] Optionally, two oppositely arranged and interconnected opening grooves are provided corresponding to the first end of the delivery tube.

[0011] Optionally, the tympanostomy tube further includes a boss portion provided at an end of the tube body portion away from the clamping portion, and a side wall of the boss portion protrudes from a side wall of the tube body portion.

[0012] Optionally, an opening groove and a notch portion are provided corresponding to the first end of the delivery tube. The opening groove and the notch portion are interconnected and arranged in sequence along the axial direction close to the second end of the delivery tube, and an opening size of the notch portion is larger than an opening size of the opening groove.

[0013] Optionally, the tympanostomy tube includes a tube body portion, a boss portion, and a drainage portion. The boss portion and the drainage portion are respectively connected to two ends of the tube body portion; a side wall of the drainage portion protrudes from a side wall of the tube body portion, and a side wall of the boss portion protrudes from a side wall of the drainage portion; the drainage portion has a drainage notch.

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

[0015] Optionally, the mounting seat includes a first column section and a second column section connected to each other. A diameter of the first column section is smaller than a diameter of the second column section; the needle column is provided at an end of the first column section away from the second column section;

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

[0017] Optionally, a ring platform portion is formed between the first column section and the second column section, and the ring platform portion abuts against an 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 body and the second tube body are of a hollow structure. A proximal end of the second tube body is sleeved inside the first tube body, and a distal end of the second tube body is configured to assemble the tympanostomy tube;

[0020] The push rod passes through the first tube body and the second tube body, and the push rod can move axially inside the first tube body and the second tube body.

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

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

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

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

[0026] Optionally, the tympanic membrane ventilation tube placement device further includes a bracket, the bracket is provided with a first connection hole and a second connection hole, the bracket is sleeved with the delivery tube at the first connection hole, and the second connection hole is configured to install an endoscope.

[0027] The tympanic membrane ventilation tube assembly provided by the embodiment of the present application is convenient to use, safe and hygienic, and is beneficial to improving the surgical efficiency and shortening the surgical time.

[0028] Through the following detailed description of the exemplary embodiments of the present application with reference to the accompanying drawings, other features and advantages of the present application will become clear. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The drawings incorporated in the specification and constituting a part of the specification illustrate embodiments of the present application, and together with the description are used to explain the principles of the present application.

[0030] Figure 1 is a schematic diagram of the overall structure of the tympanic membrane ventilation tube placement device in the tympanic membrane ventilation tube assembly according to an embodiment of the present application Figure 1 ;

[0031] Figure 2 is Figure 1 an enlarged schematic view of part A in

[0032] Figure 3 is a schematic diagram of the disassembled structure of the tympanic membrane ventilation tube placement device in the tympanic membrane ventilation tube assembly according to an embodiment of the present application;

[0033] Figure 4 is a schematic cross-sectional structure diagram of the tympanic membrane ventilation tube placement device in the tympanic membrane ventilation tube assembly according to an embodiment of the present application;

[0034] Figure 5 Yes Figure 4 It is an enlarged schematic view of part B in

[0035] Figure 6 It is a schematic structural view of the bracket of the tympanostomy tube insertion device in the tympanostomy tube assembly according to an embodiment of the present application;

[0036] Figure 7 It is a schematic structural view of the tympanostomy tube assembly according to an embodiment of the present application;

[0037] Figure 8 It is a schematic structural view of the tympanostomy tube in the tympanostomy tube assembly according to an embodiment of the present application Figure 1 ;

[0038] Figure 9 It is a schematic view of the cooperation between the tympanostomy tube and the second tube body in the tympanostomy tube assembly according to an embodiment of the present application;

[0039] Figures 10 to 11 It is a schematic view of the working state of the tympanostomy tube in the tympanostomy tube assembly according to an embodiment of the present application;

[0040] Figure 12 It is a schematic structural view of the tympanostomy tube in the tympanostomy tube assembly according to an embodiment of the present application Figure 2 。

[0041] Explanation of reference numerals:

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

[0043] 2. Tympanostomy tube; 21. Tube body part; 22. Engaging part; 23. Boss part; 24. Drainage part; 240. Drainage notch. Detailed Description of the Embodiment

[0044] Now, various exemplary embodiments of the present application will 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 values 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 in nature and is in no way a limitation on this application, its application, or its use.

[0046] 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.

[0047] In all the examples shown and discussed here, any specific values should be construed as merely exemplary and not as a limitation. Thus, other examples of the exemplary embodiments may have different values.

[0048] It should be noted that like reference numerals and letters denote like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

[0049] Referring to Figures 1 to 12 As shown, according to an embodiment of the present application, a tympanostomy tube assembly is provided. The tympanostomy tube assembly includes a tympanostomy tube insertion device 1 and a tympanostomy tube 2. Among them, the tympanostomy tube insertion device 1 includes a delivery tube 11, an inserter 12, and a puncture needle 13. The delivery tube 11 is a hollow structure and includes a first end and a second end disposed opposite to each other. Among them, the first end can be used to assemble the tympanostomy tube 2.

[0050] The inserter 12 includes a mounting base 121 and a needle column 122 connected to each other. The mounting base 121 is detachably connected to the second end of the delivery tube 11, and the needle column 122 is received in the delivery tube 11. The mounting base 121 is provided with a receiving 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 mounted on the first end of the delivery tube 11.

[0052] The tympanostomy tube 2 has a contracted state and an expanded state. In the contracted state, the tympanostomy tube 2 can be assembled on the first end of the delivery tube 11. When the tympanostomy tube 2 is detached from the delivery tube 11, the tympanostomy tube 2 switches from the contracted state to the expanded state.

[0053] First, the tympanostomy tube insertion device 1 in the tympanostomy tube assembly provided by the embodiment of the present application will be introduced in detail below:

[0054] The tympanostomy tube insertion device 1 can be used to insert a tympanostomy tube into the tympanic membrane of a patient. When tympanostomy is required, first, the puncture needle 13 is taken out from the inserter 12 and installed at the first end of the delivery tube 11. At this time, the puncture needle 13 is received in the cavity of the delivery tube 11 corresponding to its first end.

[0055] When a puncture operation on the tympanic membrane is required, the puncture needle 13 is slowly pushed out through the delivery tube 11 to complete the puncture of the tympanic membrane; after the puncture is completed, the puncture needle 13 is taken out from the first end of the delivery tube 11, and then the tympanostomy tube 2 is assembled at the first end of the delivery tube 11. Since tympanostomy tubes of some shapes are not easily inserted into the cavity of the delivery tube 11, the inserter 12 needs to be taken out from the second end position of the delivery tube 11, and the tympanostomy tube is pressed into the cavity of the delivery tube 11 by means of the needle post 122 of the inserter 12. The mounting seat 121 of the inserter 12 is detachably connected to the second end of the delivery tube 11, and the operator can very conveniently detach the inserter 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 tympanostomy tube is slowly pushed out from the delivery tube 11. After the tympanostomy tube is inserted into the tympanic membrane, the delivery tube 11 is withdrawn, and the operation is completed; the tympanostomy tube can guide the ear effusion to flow out from the tube.

[0056] Before the tympanostomy tube insertion device 1 provided in the embodiment of the present application is used, the inserter 12 for assisting in assembling the tympanostomy tube and the puncture needle 13 for puncturing the tympanic membrane are both installed on the delivery tube 11, that is, the inserter 12, the puncture needle 13, and the delivery tube 11 are a set of instruments; thus, the entire process of tympanic membrane puncture, tympanostomy tube assembly, and tympanostomy tube insertion can be completed without the aid of other tools. Therefore, the functional integration degree of the tympanostomy tube insertion device is relatively high, it is convenient, safe, and hygienic to use, which is beneficial to improving the surgical efficiency and shortening the surgical time.

[0057] Refer to Figure 4 、 Figure 5 As shown in the figure, in one embodiment, in the first state, the length of the puncture needle 13 inserted in 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 in the receiving groove 120 is too short, the stability of the puncture needle 13 installed in the receiving groove 120 is poor, and there is a risk that the puncture needle 13 may fall out of the receiving groove 120; while if the length of the puncture needle 13 inserted in the receiving groove 120 is too long, on the one hand, the catheter introducer 12 needs to have a longer size, and on the other hand, it is possible that the puncture needle 13 is difficult to be taken out of the receiving groove 120. Therefore, in this specific example, the length of the puncture needle 13 inserted in the receiving groove 120 is set to 1 / 2 to 2 / 3 of the total length of the puncture needle 13, which not only ensures the stability of the puncture needle 13 installed in the receiving groove 120, but also ensures that the puncture needle 13 is easily taken out of the receiving groove 120.

[0059] It can be understood that in the first state, the tip of the puncture needle 13 is inserted in the receiving groove 120, and the tail of the puncture needle 13 is exposed outside the receiving groove 120.

[0060] Refer to Figure 4 、 Figure 5 As shown in the figure, in one embodiment, the mounting seat 121 includes a first column section 1211 and a second column section 1212 that are connected to each other, and the diameter of the first column section 1211 is smaller than the diameter of the second column section 1212; the needle column 122 is disposed at an end of the first column section 1211 away from the second column section 1212;

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

[0062] In this specific example, the first column section 1211 of the mounting seat 121 is screwed into the second end of the delivery tube 11 by means of threaded connection to achieve the detachable connection between the mounting seat 121 and the delivery tube 11, and both the installation and disassembly are very convenient; the second column section 1212 of the mounting seat 121 is located outside the delivery tube 11. Among them, the outer diameter of the first column section 1211 is smaller than the outer diameter at the second end of the delivery tube 11, and the outer diameter of the second column section 1212 is the same as the outer diameter at the second end of the delivery tube 11, so that when the catheter introducer 12 is connected to the delivery tube 11, the appearance of the connection part between the catheter introducer 12 and the delivery tube 11 is more beautiful. And, when the catheter introducer 12 is connected to the delivery tube 11, the needle column 122 is completely accommodated in the delivery tube 11, so as to protect both the needle column 122 and the operator, avoid the needle column 122 from accidentally injuring the operator, and also avoid the needle column 122 from being damaged due to collision.

[0063] Refer to Figure 5 As shown in the figure, in one embodiment, a ring platform portion 1210 is formed between the first column section 1211 and the second column section 1212, and the ring platform portion 1210 abuts against the end face of the second end of the delivery tube 11.

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

[0065] Refer to Figure 1 、 Figure 3 、 Figure 4 As shown in

[0066] In one embodiment, the delivery tube 11 includes a first tube body 111, a second tube body 112, and a push rod 113;

[0067] Both the first tube body 111 and the second tube body 112 are hollow structures. The proximal end of the second tube body 112 is sleeved inside the first tube body 111, and the distal end of the second tube body 112 is configured to be assembled with a tympanic ventilation tube.

[0068] In this specific example, the first tube body 111 and the second tube body 112 are arranged axially. The proximal end of the second tube body 112 is sleeved inside the first tube body 111. Thus, one end of the first tube body 111 away from the second tube body 112 constitutes the second end of the delivery tube 11, and the distal end of the second tube body 112 (i.e., the end of the second tube body 112 away from the first tube body 111) constitutes the first end of the delivery tube 11.

[0069] A part of the push rod 113 is disposed in the cavity of the first tube body 111, and another part is disposed in the cavity of the second tube body 112. During use, the operator pushes the push rod 113 to move axially, so as to push the tympanic ventilation tube out of the delivery tube 11.

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

[0071] Refer to Figure 3 As shown in

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

[0073] In this specific example, the linkage part 1132 is used to receive the driving force of the operator; for example, the tympanic membrane ventilation tube insertion device further includes a push handle 14. The first tube body 111 is provided with an opening 110 on its side wall. The push handle 14 is connected to the linkage part 1132 at the opening 110. During use, the operator pushes the push handle 14 with the hand, and the push handle 14 drives the linkage part 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 pushing part 1133 in the second state.

[0075] In this specific example, for example, the puncture needle 13 is made of a magnetic material, and the pushing part 1133 is made of a plastic metal material; when the puncture needle 13 is taken out from the catheterizer 12 and installed at the first end of the delivery tube 11, the puncture needle 13 and the pushing part 1133 are adsorbed together, so as to firmly fix the puncture needle 13 at the position of the first end of the delivery tube 11, avoiding the situation that the puncture needle 13 falls off during use and improving the safety of the operation.

[0076] Refer to Figure 1 、 Figure 3 As shown, in one embodiment, the tympanic membrane ventilation tube insertion device further includes a bracket 15. The bracket 15 is provided with a first connection hole 151 and a second connection hole 152. The bracket 15 is sleeved with the delivery tube 11 at the first connection hole 151. The second connection hole 152 is configured to install an endoscope.

[0077] In this specific example, by providing the bracket 15 and installing an endoscope on the bracket 15, the surgical process can be observed visually, improving the safety and success rate of the operation. Specifically, the bracket 15 is installed at a position close to the distal end of the second tube body 112.

[0078] Refer to Figure 7As shown in the figure, the tympanostomy tube assembly provided by the embodiment of the present application includes the tympanostomy tube insertion device 1 as described above, and further includes a tympanostomy tube 2; the tympanostomy tube 2 has a contracted state and an expanded state. In the contracted state, the tympanostomy tube 2 can be assembled at the first end of the delivery tube 11; when the tympanostomy tube 2 is separated from the delivery tube 11, the tympanostomy tube 2 switches from the contracted state to the expanded state.

[0079] Since the tympanostomy tube assembly provided by the embodiment of the present application includes the above-mentioned tympanostomy tube insertion device 1, it is convenient to use, safe and hygienic, which is beneficial to improving the surgical efficiency and shortening the surgical time.

[0080] Refer to Figure 7 、 Figure 8 As shown in the figure, in one embodiment, the tympanostomy tube 2 includes a tube body portion 21 and a clamping portion 22 connected to each other. In the expanded state, the tube body portion 21 and the clamping portion 22 are connected in a T shape.

[0081] In this specific example, the tympanostomy tube 2 includes a tube body portion 21 and a clamping portion 22; in the expanded state, the tympanostomy tube 2 is in a T shape, that is, one end of the tube body portion 21 is connected to the middle of the clamping portion 22. The T-shaped tympanostomy tube 2 can be firmly clamped at the tympanic membrane perforation. During the process of assembling the tympanostomy tube 2 into the second tube body 112, the tube body portion 21 can smoothly enter the second tube body 112. Since the clamping portion 22 is horizontally arranged relative to the second tube body 112, it is relatively difficult to enter the second tube body 112. Therefore, it is necessary to press it into the cavity of the second tube body 112 by means of the needle column 122 of the catheter introducer 12.

[0082] Refer to Figure 2 As shown in the figure, in one embodiment, the delivery tube 11 is provided with two oppositely arranged and communicating opening grooves 1120 corresponding to its first end.

[0083] In this specific example, when the tympanostomy tube 2 is assembled into the second tube body 112, the two opening grooves 1120 respectively correspond to the structures of the clamping portion 22 on both sides of the tube body portion 21, and the clamping portion 22 is pressed into the cavity of the second tube body 112 by the needle column 122 of the catheter introducer 12 through the two opening grooves 1120. The arrangement of the opening grooves 1120 can ensure that the clamping portion 22 smoothly enters the second tube body 112.

[0084] Refer to Figure 8 、 Figure 9 As shown in the figure, in one embodiment, the tympanostomy tube 2 further includes a boss portion 23, the boss portion 23 is arranged at the end of the tube body portion 21 far from the clamping portion 22, and the side wall of the boss portion 23 protrudes from the side wall of the tube body portion 21.

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

[0086] Refer to Figure 9 As shown, in one embodiment, the delivery tube 11 is provided with an opening groove 1120 and a notch portion 1121 corresponding to its first end. The opening groove 1120 and the notch portion 1121 communicate with each other and are arranged in sequence along the axial direction close to the second end of the delivery tube 11. The opening size of the notch portion 1121 is greater than the opening size of the opening groove 1120.

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

[0088] Refer to Figure 12 Another structure of the tympanic membrane ventilating tube 2 is shown, which includes a tube body portion 21, a boss portion 23 and a drainage portion 24. The boss portion 23 and the drainage portion 24 are respectively connected to both ends of the tube body portion 21; the side wall of the drainage portion 24 protrudes from the side wall of the tube body portion 21, and the side wall of the boss portion 23 protrudes from the side wall of the drainage portion 24; the drainage portion 24 has a drainage notch 240.

[0089] In this tympanic membrane ventilating 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, the drainage portion 24 is the second, 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 engage the eardrum; and, the drainage notch 240 provided in the drainage portion 24 helps to guide the ear effusion.

[0090] In the above embodiments, the differences between the embodiments are mainly described. As long as the different optimized features between the embodiments are not contradictory, they can be combined to form a better embodiment. Considering the simplicity of the writing, it will not be elaborated here.

[0091] Although some specific embodiments of the present application have been described in detail by way of examples, those skilled in the art should understand that the above examples are only for illustration and not for limiting the scope of the present application. Those skilled in the art should understand that the above embodiments can be modified without departing from the scope and spirit of the present application. The scope of the present application is defined by the appended claims.

Claims

1. A tympanic membrane ventilation tube assembly, characterized in that: The tympanic membrane ventilation tube assembly comprises: A device for inserting a tympanic membrane ventilation tube (1), the device for inserting a tympanic membrane ventilation tube (1) comprising a delivery tube (11), a tube inserter (12) and a puncture needle (13), the delivery tube (11) being a hollow structure, the delivery tube (11) comprising a first end and a second end arranged opposite to each other; the tube inserter (12) comprising a mounting seat (121) and a needle column (122) connected to each other, the mounting seat (121) being detachably connected to the second end of the delivery tube (11), the needle column (122) being accommodated in the delivery tube (11); the mounting seat (121) being provided with a receiving groove (120); the puncture needle (13) having 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); A tympanic membrane ventilation tube (2), the tympanic membrane ventilation tube (2) having a contracted state and an expanded state. In the contracted state, the tympanic membrane ventilation tube (2) can be assembled on the first end of the placement tube (11); when the tympanic membrane ventilation tube (2) is detached from the placement tube (11), the tympanic membrane ventilation tube (2) switches from the contracted state to the expanded state.

2. The tympanic membrane venting tube assembly according to claim 1, characterized in that: The tympanic membrane ventilation tube (2) comprises a tube body portion (21) and a clamping portion (22) which are connected to each other. In an unfolded state, the tube body portion (21) and the clamping portion (22) are connected to form a T-shape.

3. The tympanic membrane venting tube assembly according to claim 2, characterized in that: The delivery tube (11) is provided with two opening grooves (1120) which are arranged opposite to each other and are connected to each other, corresponding to the first end thereof.

4. The tympanic membrane venting tube assembly according to claim 2, characterized in that: The tympanic membrane ventilation tube (2) further comprises a boss portion (23), wherein the boss portion (23) is arranged at an end of the tube body portion (21) away from the engaging portion (22), and a side wall of the boss portion (23) protrudes from a side wall of the tube body portion (21).

5. The tympanic membrane venting tube assembly according to claim 4, characterized in that: The delivery tube (11) is provided with an opening groove (1120) and a notch portion (1121) corresponding to the first end thereof; the opening groove (1120) and the notch portion (1121) are interconnected and arranged axially in sequence close to the second end of the delivery tube (11); the opening size of the notch portion (1121) is larger than the opening size of the opening groove (1120).

6. The tympanic membrane venting tube assembly according to claim 1, characterized in that: The tympanic membrane ventilation tube (2) comprises a tube body (21), a boss portion (23) and a drainage portion (24), wherein the boss portion (23) and the drainage portion (24) are respectively connected to the two ends of the tube body (21); the side wall of the drainage portion (24) is arranged to protrude from the side wall of the tube body (21), and the side wall of the boss portion (23) is arranged to protrude from the side wall of the drainage portion (24); and the drainage portion (24) has a drainage notch (240).

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

8. The tympanic membrane venting tube assembly according to claim 1, characterized in that: The mounting seat (121) comprises a first column section (1211) and a second column section (1212) connected to each other, the diameter of the first column section (1211) is smaller than the diameter of the second column section (1212); the needle column (122) is arranged at the end of the first column section (1211) away from the second column section (1212); The first column section (1211) is threadedly connected to the second end of the delivery tube (11), and the receiving groove (120) is opened in the second column section (1212).

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

10. The tympanic membrane vent assembly according to claim 1, characterized in that: The delivery tube (11) comprises a first tube body (111), a second tube body (112) and a push rod (113); The first tube body (111) and the second tube body (112) are both hollow structures, the proximal end of the second tube body (112) is sleeved in the first tube body (111), and the distal end of the second tube body (112) is configured to be equipped with a tympanic membrane ventilation tube; The push rod (113) is inserted into the first tube body (111) and the second tube body (112), and the push rod (113) is able to move axially inside the first tube body (111) and the second tube body (112).

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

12. The tympanic membrane vent assembly according to claim 11, characterized in that: The puncture needle (13) is magnetically connected to the pushing portion (1133) in the second state.

13. The tympanic membrane vent 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 material.

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

15. The tympanic membrane venting tube assembly according to claim 1 or 10, characterized in that: The tympanic membrane ventilation tube insertion device also includes a bracket (15), the bracket (15) is provided with 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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