Cup-shaped top tray artificial titanium auditory ossicle

Abstract

The utility model discloses a cup-shaped top plate artificial titanium ossicular which comprises an ossicular plate arranged on one side of a tympanic membrane, an ossicular mechanism used for forming a linear ossicular structure, an adjusting mechanism used for adjusting the installation angle of the ossicular, and a top plate mechanism used for being connected with stapes, the auditory ossicle mechanism is arranged on the side, away from the tympanic membrane, of the auditory ossicle disc, the adjusting mechanism is arranged at the end of the auditory ossicle mechanism, and the top disc mechanism is assembled at the end, away from the auditory ossicle disc, of the auditory ossicle mechanism. The artificial ossicle is simple in structure and suitable for various installation conditions, modular design is adopted, assembling and disassembling are convenient, the top disc mechanism is arranged, the cup-shaped top disc structure is filled with the adaptive rubber pad structure, the connecting position of the top disc mechanism and the stapes can be filled, a gap between the top disc mechanism and the stapes is avoided, and the matching precision between the artificial ossicle and the stapes is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a cup-shaped top plate artificial titanium ossicle. Background Art

[0002] In the prior art, the ossicles of the human body are composed of the malleus, incus and stapes, which are interconnected to form an ossicular chain, playing a role in sound transmission and amplification, and are the basis for maintaining normal human hearing. Due to various reasons, such as chronic otitis media, the continuity of the ossicular chain may be interrupted or its movement may be restricted, affecting hearing. Among them, the absence of the incus and malleus while the stapes remains, causing the interruption of the ossicular chain and resulting in deafness, is very common in chronic otitis media. The general treatment method is to implant an artificial ossicle at the missing position, with both ends connected to the stapes and the eardrum respectively to restore the continuity of the ossicular chain, which is equivalent to replacing the functions of the malleus and incus. The tympanic membrane contact end of the currently clinically used titanium ossicle is a circular plane, and the tympanic membrane graft is commonly the perichondrium of the tragus with a cartilage piece. The cartilage piece serves as a buffer support to reduce postoperative perforation. To accurately align the artificial ossicle, the area of the cartilage piece needs to exceed the area of the titanium ossicle end. Otherwise, stable connection cannot be achieved and the buffering effect cannot be exerted. However, if the area of the cartilage piece is too large, it will hinder the vibration of the tympanic membrane, reducing its sound transmission efficiency and having a negative impact on the postoperative hearing improvement effect. Moreover, the optional transplantation tissue is limited, and postoperative tragal deformation often occurs, affecting the patient's appearance. In addition, the existing clinical use of titanium ossicles in tympanoplasty often abandons the remaining autologous incus or malleus head.

[0003] The Chinese utility model patent with the application number 202021559779.8 discloses a cup-shaped top plate artificial titanium ossicle, which includes a concave top plate and a stapes end structure. The bottom surface of the concave top plate is connected to the top surface of the stapes end structure. The concave top plate is in the shape of a positive cup or a saucer or a bowl or a plate, and several side wall holes A penetrating the side wall are provided on the side wall of the concave top plate. The stapes end structure is in the shape of an inverted cup or multi-lobed or hammer-shaped. However, this cup-shaped top plate artificial titanium ossicle uses a general bowl-shaped structure to cooperate with the stapes, resulting in a certain gap at the connection between it and the stapes, and then leading to a relatively low matching accuracy between it and the stapes, affecting the smoothness of sound conduction of the ossicular chain, and there may be a phenomenon of sound transmission interruption, and the sound transmission effect is relatively average. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a cup-shaped top plate artificial titanium ossicle.

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

[0006] A cup-shaped top plate artificial titanium ossicle, comprising an ossicle plate, the ossicle plate being arranged on one side of the tympanic membrane, further comprising an ossicle mechanism for forming a linear ossicle structure, an adjusting mechanism for adjusting the installation angle of the ossicle, and a top plate mechanism for connecting with the stapes. The ossicle mechanism is arranged on the side of the ossicle plate away from the tympanic membrane, the adjusting mechanism is configured at the end of the ossicle mechanism, and the top plate mechanism is assembled at one end of the ossicle mechanism away from the ossicle plate.

[0007] The ossicle mechanism includes an ossicle base rod and an ossicle end rod. The ossicle base rod is arranged at one end of the ossicle plate away from the tympanic membrane through the adjusting mechanism, and the ossicle end rod is arranged at one end of the ossicle base rod away from the ossicle plate and is sleeved with the ossicle base rod.

[0008] One end of the ossicle base rod close to the ossicle end rod is provided with an external thread, one end of the ossicle end rod close to the ossicle base rod is provided with an internal thread, and the adjacent ends of the ossicle base rod and the ossicle end rod are threadedly connected to each other to form a linear ossicle structure.

[0009] The adjusting mechanism includes an adjusting bracket, an adjusting core block, and an adjusting end bracket. The adjusting bracket is arranged at the end of the linear ossicle structure. The adjusting core block is arranged inside one end of the adjusting bracket away from the linear ossicle structure and is rotatably connected to the adjusting bracket. The adjusting end bracket is arranged on one side of the adjusting core block away from the adjusting bracket and is rotatably connected to the adjusting core block. The adjusting end bracket and the adjusting bracket are arranged in a staggered and opposite manner.

[0010] It further includes two groups of adjusting core shafts. The two groups of adjusting core shafts are arranged perpendicular to each other on the side of the adjusting core block and are rotatably connected to the adjusting core block. The adjusting bracket and the adjusting end bracket are rotatably connected to the adjusting core block through the corresponding adjusting core shafts. The adjusting bracket, the adjusting core block, the adjusting end bracket, and the adjusting core shafts together form a universal connection structure.

[0011] There are two groups of adjusting mechanisms, which are respectively arranged at the mutually remote ends of the ossicle base rod and the ossicle end rod, and one group of the adjusting brackets is fixedly connected to the corresponding ossicle base rod or the ossicle end rod.

[0012] The top plate mechanism includes an installation base, an installation support rod, and a top plate assembly. The installation base is arranged at one end of the adjusting end bracket away from the ossicle plate and is fixedly connected to the corresponding adjusting end bracket. The installation support rod is arranged at one end of the installation base away from the adjusting end bracket and is fixedly connected to the installation base. The top plate assembly is configured on one side of the installation support rod away from the installation base.

[0013] The top plate assembly includes a concave top plate and mounting through holes. The concave top plate is disposed at one end of the mounting rod away from the mounting base and is fixedly connected to the mounting rod. The concave top plate is configured as a cup-shaped structure. There are several groups of the mounting through holes, and the several groups of mounting through holes are evenly spaced and arranged on the side of the concave top plate and penetrate through the concave top plate.

[0014] It further includes a filling rubber pad, and the filling rubber pad is filled inside the concave top plate and the filling rubber pad is configured as an inwardly concave structure.

[0015] It further includes anti-slip protrusions. There are several groups of the anti-slip protrusions, and the several groups of anti-slip protrusions are evenly spaced and annularly arranged on the side of the ossicular plate close to the eardrum and are fixedly connected to the ossicular plate.

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

[0017] There is an ossicular mechanism cooperating with an adjusting mechanism, which can perform multi-dimensional adjustment on the installation angle of the ossicle, is flexible to use, is applicable to various installation situations, and its modular design facilitates assembly and disassembly. There is a top plate mechanism, and an adaptive rubber pad structure is filled in the cup-shaped top plate structure, which can fill the connection between the top plate mechanism and the stapes, avoid gaps between the two, thereby effectively improving the matching accuracy between the artificial ossicle and the stapes, ensuring the smoothness of the sound conduction of the ossicular chain, avoiding the phenomenon of sound transmission interruption, and having good sound transmission effect. Description of the Drawings

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

[0019] Figure 2 is a schematic diagram of the structure of the top plate assembly of the present utility model;

[0020] Figure 3 is a cross-sectional view of the cooperation between the top plate assembly and the filling rubber pad of the present utility model;

[0021] Figure 4 is a schematic diagram of the cooperation between the anti-slip protrusion and the ossicular plate of the present utility model.

[0022] In the figure: 1, ossicular plate; 2, ossicular base rod; 3, ossicular end rod; 4, adjusting bracket; 5, adjusting core block; 6, adjusting end frame; 7, adjusting core shaft; 8, mounting base; 9, mounting rod; 10, concave top plate; 11, mounting through hole; 12, filling rubber pad; 13, anti-slip protrusion. Detailed Description of the Embodiment

[0023] The following further describes the present utility model in detail with reference to the drawings.

[0024] A cup-shaped top plate artificial titanium ossicle, comprising an ossicle plate 1 which is arranged on one side of the tympanic membrane, further comprising an ossicle mechanism for forming a linear ossicle structure, an adjusting mechanism for adjusting the installation angle of the ossicle, and a top plate mechanism for connecting with the stapes. The ossicle mechanism is arranged on the side of the ossicle plate 1 away from the tympanic membrane, the adjusting mechanism is configured at the end of the ossicle mechanism, and the top plate mechanism is assembled at one end of the ossicle mechanism away from the ossicle plate 1. The overall structural schematic diagram of the present utility model is as shown in Figure 1 shown.

[0025] The ossicle mechanism includes an ossicle base rod 2 and an ossicle end rod 3. The ossicle base rod 2 is configured at one end of the ossicle plate 1 away from the tympanic membrane through the adjusting mechanism. The ossicle end rod 3 is arranged at one end of the ossicle base rod 2 away from the ossicle plate 1 and is sleeved with the ossicle base rod 2. An external thread is provided at one end of the ossicle base rod 2 close to the ossicle end rod 3, and an internal thread is provided at one end of the ossicle end rod 3 close to the ossicle base rod 2. The adjacent ends of the ossicle base rod 2 and the ossicle end rod 3 are threadedly connected to each other to form a linear ossicle structure. The ossicle mechanism is combined with the ossicle base rod 2 and the ossicle end rod 3 to form an adjustable linear ossicle structure. Among them, the ossicle base rod 2 is used to provide installation support for the ossicle end rod 3, and the ossicle end rod 3 is used to jointly form an adjustable linear ossicle structure with the ossicle base rod 2.

[0026] The adjusting mechanism includes an adjusting bracket 4, an adjusting core block 5 and an adjusting end bracket 6. The adjusting bracket 4 is arranged at the end of the linear ossicle structure. The adjusting core block 5 is arranged inside one end of the adjusting bracket 4 away from the linear ossicle structure and is rotatably connected to the adjusting bracket 4. The adjusting end bracket 6 is arranged on the side of the adjusting core block 5 away from the adjusting bracket 4 and is rotatably connected to the adjusting core block 5. The adjusting end bracket 6 and the adjusting bracket 4 are arranged in a staggered and opposite manner. The adjusting mechanism is combined with the adjusting bracket 4, the adjusting core block 5 and the adjusting end bracket 6 to form an adjusting installation structure on the artificial ossicle to adjust the installation angle of the artificial ossicle. Among them, the adjusting bracket 4 is used as an installation structure on the artificial ossicle and provides installation support for the adjusting core block 5. The adjusting core block 5 is used to provide installation support for the adjusting bracket 4 and the adjusting end bracket 6 through the adjusting core shaft 7. The adjusting end bracket 6 is used to connect the ossicle mechanism with the ossicle plate 1 and the top plate mechanism under the action of the adjusting core block 5.

[0027] It further includes adjusting mandrels 7. There are two sets of adjusting mandrels 7, which are arranged perpendicular to each other on the side of the adjusting core block 5 and are rotatably connected to the adjusting core block 5. The adjusting bracket 4 and the adjusting end bracket 6 are rotatably connected to the adjusting core block 5 through the corresponding adjusting mandrels 7. The adjusting bracket 4, the adjusting core block 5, the adjusting end bracket 6 and the adjusting mandrels 7 together form a universal joint structure. There are two sets of adjusting mechanisms, which are respectively arranged at the mutually remote ends of the ossicular base rod 2 and the ossicular end rod 3, and one set of adjusting brackets 4 is fixedly connected to the corresponding ossicular base rod 2 or ossicular end rod 3. Among them, the adjusting mandrel 7 is used to rotatably connect the adjusting core block 5 with the adjusting bracket 4 and the adjusting end bracket 6, so as to form a universal joint structure to adjust the installation angle of the artificial ossicle. A locking screw is arranged at the connection between the adjusting mandrel 7 and the adjusting core block 5, and the adjusting mechanism can be locked and fixed by tightening the locking screw.

[0028] The top plate mechanism includes an installation base 8, an installation support rod 9 and a top plate assembly. The installation base 8 is arranged at the end of the adjusting end bracket 6 away from the ossicular disc 1 and is fixedly connected to the corresponding adjusting end bracket 6. The installation support rod 9 is arranged at the end of the installation base 8 away from the adjusting end bracket 6 and is fixedly connected to the installation base 8. The top plate assembly is arranged on the side of the installation support rod 9 away from the installation base 8. The top plate mechanism is cooperated by the installation base 8, the installation support rod 9 and the top plate assembly to form a cup-shaped top plate structure for connecting the artificial ossicle with the stapes. Among them, the installation base 8 is used to provide installation support for the installation support rod 9, the installation support rod 9 is used to provide installation support for the top plate assembly, and the top plate assembly is used to form a cup-shaped top plate structure for connecting the artificial ossicle with the stapes.

[0029] The top plate assembly includes a concave top plate 10 and installation through holes 11. The concave top plate 10 is arranged at the end of the installation support rod 9 away from the installation base 8 and is fixedly connected to the installation support rod 9. The concave top plate 10 is arranged in a cup-shaped structure. There are several groups of installation through holes 11, and several groups of installation through holes 11 are evenly spaced on the side of the concave top plate 10 and penetrate the concave top plate 10. The top plate assembly is cooperated by the concave top plate 10 and the installation through holes 11 to form a cup-shaped top plate structure for connecting the artificial ossicle with the stapes. Among them, the concave top plate 10 is used as an installation structure on the artificial ossicle to cooperate with the stapes, and the installation through holes 11 are used as installation structures on the concave top plate 10 to improve the compatibility of the concave top plate 10. The concave top plate 10 can match the irregularly shaped cartilages of various parts, such as the concha cartilage, the external auditory canal cartilage, the residual ossicles or the mastoid hard bone particles, and can play a buffering and supporting role. Because the cartilage and hard bone particles are embedded in the concave surface of the artificial ossicle, the artificial ossicle will not fall off. The schematic structural diagram of the top plate assembly of the present utility model is as Figure 2 shown.

[0030] It further includes a filling rubber pad 12. The filling rubber pad 12 is filled inside the concave top plate 10 and the filling rubber pad 12 is arranged in an inward concave structure. Wherein, the filling rubber pad 12 is used as a filling structure inside the concave top plate 10, so as to fill the connection part between the concave top plate 10 and the stapes, avoid gaps between the two, and improve the matching precision between the artificial ossicle and the stapes. The sectional view of the cooperation between the top plate assembly of the present utility model and the filling rubber pad 12 is as Figure 3 shown.

[0031] It further includes anti-slip protrusions 13. There are several groups of anti-slip protrusions 13. The several groups of anti-slip protrusions 13 are evenly spaced and annularly arranged on one side of the ossicle disc 1 close to the eardrum and are fixedly connected to the ossicle disc 1. Wherein, the anti-slip protrusions 13 are used as anti-slip structures on the ossicle disc 1, so as to effectively improve the installation stability between the ossicle disc 1 and the eardrum. The schematic diagram of the cooperation between the anti-slip protrusions 13 and the ossicle disc 1 of the present utility model is as Figure 4 shown.

[0032] Working principle:

[0033] When an operation of implanting the artificial ossicle is required, the installation angles between the ossicle mechanism, the ossicle disc 1 and the top plate mechanism are adjusted through the adjusting mechanism according to the usage requirements, and the length of the ossicle mechanism can be adjusted by rotating the ossicle base rod 2 or the ossicle end rod 3. Then, the artificial ossicle is placed into the patient's ear canal, the ossicle disc 1 is abutted against the eardrum, and the top plate mechanism is connected to the stapes to realize the implantation and installation of the artificial ossicle. In the implanted state, the filling rubber pad 12 inside the concave top plate 10 serves as a filling structure to fill the connection part between the concave top plate 10 and the stapes, avoid gaps between the two, and improve the matching precision between the artificial ossicle and the stapes.

[0034] The beneficial effects of the present utility model are that there is a cooperation between the ossicle mechanism and the adjusting mechanism, which can perform multi-dimensional adjustment of the installation angle of the ossicle, is flexible to use and applicable to various installation situations. And it adopts a modular design, which is convenient for assembly and disassembly. There is a top plate mechanism, and its cup-shaped top plate structure is filled with an adaptive rubber pad structure, which can fill the connection part between the top plate mechanism and the stapes, avoid gaps between the two, thus effectively improving the matching precision between the artificial ossicle and the stapes, ensuring the smoothness of sound conduction by the ossicular chain, avoiding the phenomenon of sound transmission interruption, and having a good sound transmission effect.

[0035] The above has described in detail an embodiment of the present utility model, but the content is only the preferred embodiment of the present utility model and cannot be considered as limiting the implementation scope of the present utility model. All equivalent changes and improvements made according to the scope of the application of the present utility model should still fall within the scope covered by the patent of the present utility model.

Claims

1. A cup-shaped top plate artificial titanium ossicle, comprising an ossicular plate (1), wherein the ossicular plate (1) is arranged on one side of the tympanic membrane, characterized in that: It also includes an ossicular mechanism for forming a linear ossicular structure, an adjusting mechanism for adjusting the installation angle of the ossicular structure, and a top plate mechanism for connecting to the stapes. The ossicular mechanism is arranged on a side of the ossicular plate (1) away from the tympanic membrane, the adjusting mechanism is arranged at the end of the ossicular mechanism, and the top plate mechanism is assembled at one end of the ossicular mechanism away from the ossicular plate (1).

2. The cup-shaped top plate artificial titanium ossicle according to claim 1, characterized in that: The ossicular mechanism comprises an ossicular base rod (2) and an ossicular end rod (3), wherein the ossicular base rod (2) is arranged at one end of the ossicular disc (1) away from the tympanic membrane through an adjustment mechanism, and the ossicular end rod (3) is arranged at one end of the ossicular base rod (2) away from the ossicular disc (1) and is sleeved with the ossicular base rod (2).

3. The cup-shaped top plate artificial titanium ossicle according to claim 2, characterized in that: An end of the ossicular base rod (2) close to the ossicular end rod (3) is provided with an external thread, and an end of the ossicular end rod (3) close to the ossicular base rod (2) is provided with an internal thread. The ossicular base rod (2) and the ossicular end rod (3) are threadedly connected to each other at their adjacent ends to form a linear ossicular structure.

4. The cup-shaped top plate artificial titanium ossicle as claimed in claim 3, characterized in that: The adjustment mechanism comprises an adjustment bracket (4), an adjustment core block (5) and an adjustment end frame (6); the adjustment bracket (4) is arranged at the end of the linear ossicular structure; the adjustment core block (5) is arranged on the inner side of one end of the adjustment bracket (4) away from the linear ossicular structure and is rotatably connected to the adjustment bracket (4); the adjustment end frame (6) is arranged on a side of the adjustment core block (5) away from the adjustment bracket (4) and is rotatably connected to the adjustment core block (5); the adjustment end frame (6) and the adjustment bracket (4) are arranged relative to each other in a staggered manner.

5. The cup-shaped top plate artificial titanium ossicle according to claim 4, characterized in that: The invention also comprises an adjusting spindle (7), wherein two groups of the adjusting spindle (7) are arranged perpendicularly to each other on the side of the adjusting core block (5) and are rotatably connected to the adjusting core block (5); the adjusting bracket (4) and the adjusting end frame (6) are rotatably connected to the adjusting core block (5) via the corresponding adjusting spindle (7); the adjusting bracket (4), the adjusting core block (5), the adjusting end frame (6) and the adjusting spindle (7) together constitute a universal connection structure.

6. The cup-shaped top plate artificial titanium ossicle according to claim 5, characterized in that: Two groups of adjustment mechanisms are provided, and the two groups of adjustment mechanisms are respectively arranged at the ends of the ossicular base rod (2) and the ossicular end rod (3) that are away from each other, and one group of the adjustment brackets (4) is fixedly connected to the corresponding ossicular base rod (2) or the ossicular end rod (3).

7. The cup-shaped top plate artificial titanium ossicle according to claim 6, characterized in that: The top plate mechanism comprises a mounting base (8), a mounting support rod (9) and a top plate assembly, wherein the mounting base (8) is arranged at one end of the adjustment end frame (6) away from the ossicular plate (1) and is fixedly connected to the corresponding adjustment end frame (6), the mounting support rod (9) is arranged at one end of the mounting base (8) away from the adjustment end frame (6) and is fixedly connected to the mounting base (8), and the top plate assembly is arranged on a side of the mounting support rod (9) away from the mounting base (8).

8. The cup-shaped top plate artificial titanium ossicle according to claim 7, characterized in that: The top plate assembly comprises a concave top plate (10) and a mounting through hole (11), wherein the concave top plate (10) is arranged at one end of the mounting support rod (9) away from the mounting base (8) and is fixedly connected to the mounting support rod (9), the concave top plate (10) is arranged as a cup-shaped structure, and the mounting through hole (11) is provided in a plurality of groups, and the plurality of groups of mounting through holes (11) are evenly spaced and arranged on the side of the concave top plate (10) and penetrate the concave top plate (10).

9. The cup-shaped top plate artificial titanium ossicle according to claim 8, characterized in that: It also includes a filling rubber pad (12), wherein the filling rubber pad (12) is filled inside the concave top plate (10) and the filling rubber pad (12) is arranged as an inner concave structure.

10. The cup-shaped top plate artificial titanium ossicle according to claim 9, characterized in that: It also includes anti-skid protrusions (13), wherein the anti-skid protrusions (13) are provided in a plurality of groups, and the plurality of groups of anti-skid protrusions (13) are evenly spaced and arranged in a ring shape on a side of the ossicular tray (1) close to the tympanic membrane and are fixedly connected to the ossicular tray (1).

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