Angle-adjustable artificial auditory ossicle

Abstract

The utility model discloses an angle-adjustable artificial ossicular which comprises an ossicular disc which is vertically arranged, and further comprises a bone hammering structure used as an adjustable artificial bone hammering structure, an incus structure used as an artificial incus and a connecting structure used for adjustably connecting the artificial bone hammering structure and the artificial incus. The bone hammering structure is arranged on one side of the ossicular disc, the incus structure is arranged at one end, far away from the ossicular disc, of the bone hammering structure, and the connecting structure is assembled between the bone hammering structure and the incus structure. The device is simple in structure, easy to operate, high in stability and capable of avoiding damage to patients due to breakage, high in operability, capable of accurately controlling the angle between the artificial hammering bone and the artificial incus by arranging a connecting structure, capable of being installed at the stapes of different patients according to the conditions of the stapes of the different patients, easy to operate, high in stability and capable of accelerating the hearing recovery progress of the patients.

Description

Technical Field

[0001] The utility model relates to the technical field of artificial ossicular structures, in particular to an artificial ossicular structure with adjustable angle. Background Art

[0002] In the prior art, in modern ear surgery, ENT patients often have poor hearing. After examination, a considerable number of them are found to be caused by lesions invading the middle ear, which may also damage the ossicles in the middle ear. At this time, the surgery will involve the placement of artificial ossicles. Artificial ossicles are usually used to restore hearing. Artificial ossicles replace the original position of the ossicles and re-establish an effective connection between the eardrum and the stapes head, so that sound can still be transmitted from the eardrum to the inner ear. The average hearing improvement after the operation can reach 17.5 decibels. The implantation of artificial ossicular prosthesis is a precise ear surgery, which is very important for doctors. The requirements for survival are relatively strict. When the stapes is intact, a partial artificial ossicle can be implanted. The base of the partial artificial ossicle is placed on the stapes head, which is relatively stable. However, when the middle ear lesions invade the stapes at the same time, the stapes head and the anterior and posterior arches disappear, and only the stapes base remains, a full artificial ossicle needs to be implanted. Now, the foot of the artificial ossicle is generally placed directly on the base plate, and only gelatin sponge is used to fill the surrounding area for fixation. There is no other auxiliary fixation around it, which results in poor stability of the full artificial ossicle. Postoperative patient activities can easily cause the artificial ossicle to shift, resulting in surgical failure.

[0003] The Chinese utility model patent with application number: 202222986635.6 discloses an adjustable artificial ossicle made of carbon composite material, including an artificial malleus and an artificial incus, wherein the artificial malleus has a chassis at one end and a spherical joint head at the other end; the artificial incus has a joint socket at one end for cooperating with the spherical joint head of the artificial malleus, and a hemispherical joint groove at the other end for cooperating with a normal stapes or a remaining stapes plate. However, the structure of the adjustable artificial ossicle made of this carbon composite material is too simple. It adopts a two-section structure design, and the angle between the two sections cannot be accurately controlled, which affects the progress of the patient's hearing recovery. In addition, its segmented structure is relatively slender and has poor stability. It is easy to break and cause harm to the patient, which poses certain safety hazards. Utility Model Content

[0004] The utility model aims to provide an artificial auditory ossicle with adjustable angle.

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

[0006] An artificial ossicle with adjustable angle comprises an ossicular tray, which is vertically arranged, and further comprises a malleus structure used as an adjustable artificial malleus, an incus structure used as an artificial incus, and a connecting structure used to adjustably connect the artificial malleus with the artificial incus, wherein the malleus structure is arranged on one side of the ossicular tray, the incus structure is configured at one end of the malleus structure away from the ossicular tray, and the connecting structure is assembled between the malleus structure and the incus structure.

[0007] The malleus structure includes a malleus body and a malleus core rod. The malleus body is arranged on one side of the ossicular disc and is fixedly connected to the ossicular disc. The interior of the malleus body is arranged as a hollow structure. The malleus core rod is arranged on the side of the malleus body away from the ossicular disc and is plugged into the malleus body. A portion of the malleus core rod protrudes from one end of the malleus body away from the ossicular disc.

[0008] It also includes a fixing screw and a fixing knob, wherein the fixing screw is arranged on one side of the malleus body and passes through the malleus body and abuts against the malleus core rod, the fixing screw is threadedly connected to the malleus body and a portion of it protrudes from the malleus body, and the fixing knob is arranged at one end of the fixing screw protruding from the malleus body and is fixedly connected to the malleus body.

[0009] The incus structure includes an incus base and an incus body. The incus base is arranged at one end of the hammer core rod away from the hammer body and is rotatably connected to the hammer core rod through a connecting structure. The incus body is arranged on a side of the incus base away from the hammer core rod and is fixedly connected to the incus base.

[0010] It also includes a connecting groove, which is arranged on a side of the incus body away from the incus base. The connecting groove is a hemispherical groove structure, and the incus body is connected to the stapes through the connecting groove.

[0011] The incus body is configured as a bud-shaped structure and a plurality of groups of weight-reducing grooves are evenly spaced around the incus body, wherein the weight-reducing grooves are configured as arc-shaped groove structures.

[0012] The connecting structure includes a connecting base, a connecting block and a connecting screw. The connecting base is arranged at an end of the hammer core rod away from the hammer body and is rotatably connected to the hammer core rod through a screw. The connecting block is arranged at an end of the incus base close to the connecting base and is rotatably connected to the incus base. The connecting screw is arranged between the connecting base and the connecting block and is rotatably connected to the connecting base and the connecting block. The connecting screw passes through the connecting base and the connecting block and a fastening nut is provided on the upper part of the connecting screw.

[0013] It also includes an adjusting screw and an adjusting knob. The adjusting screw is arranged at the connection between the connecting block and the incus base and passes through the connecting block and the incus base. The adjusting knob is arranged at one end of the adjusting screw and is fixedly connected to the adjusting screw.

[0014] The connection base and one end of the connection block close to the connection screw are configured as forked structures, and the forked structures of the two are arranged crosswise with each other, and the connection screw vertically penetrates the connection base and the forked structures of the connection block.

[0015] It also includes a mesh stripe structure, which is arranged on a side of the ossicular disc away from the malleus body.

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

[0017] The hammer structure and the incus structure cooperate to form a combined artificial ossicular structure. The overall structure is stable and will not break to cause harm to the patient. It is highly operable and is provided with a connecting structure, which can accurately control the angle between the artificial hammer and the artificial incus, so that it can be installed at the stapes according to the conditions of the stapes of different patients. It is simple to operate and has strong stability, which can effectively avoid the situation where the device is detached from the stapes during long-term use, and accelerate the patient's hearing recovery progress. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0019] Figure 2 This is a schematic diagram of the structure of the incus body of the utility model;

[0020] Figure 3 It is a schematic diagram of the coordination between the ossicular disc and the mesh stripe structure of the utility model.

[0021] In the figure: 1. auditory ossicular disc; 2. hammer body; 3. hammer core rod; 4. fixing screw; 5. fixing knob; 6. incus base; 7. incus body; 8. connecting groove; 9. weight reduction groove; 10. connecting base; 11. connecting block; 12. connecting screw; 13. adjusting screw; 14. adjusting knob; 15. mesh stripe structure. DETAILED DESCRIPTION

[0022] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0023] An angle-adjustable artificial auditory ossicle comprises an auditory ossicle tray 1, the auditory ossicle tray 1 is vertically arranged, and further comprises a malleus structure used as an adjustable artificial malleus, an incus structure used as an artificial incus, and a connecting structure used to adjustably connect the artificial malleus with the artificial incus, the malleus structure is arranged on one side of the auditory ossicle tray 1, the incus structure is arranged at one end of the malleus structure away from the auditory ossicle tray 1, and the connecting structure is assembled between the malleus structure and the incus structure. The overall structural schematic diagram of the utility model is shown in FIG. Figure 1 shown.

[0024] The malleus structure includes a malleus body 2 and a malleus core rod 3. The malleus body 2 is arranged on one side of the ossicular disc 1 and is fixedly connected to the ossicular disc 1. The interior of the malleus body 2 is arranged as a hollow structure. The malleus core rod 3 is arranged on the side of the malleus body 2 away from the ossicular disc 1 and is plugged into the malleus body 2. A portion of the malleus core rod 3 protrudes from the end of the malleus body 2 away from the ossicular disc 1. The malleus structure is formed by the cooperation of the malleus body 2 and the malleus core rod 3 to form an artificial malleus, wherein the malleus body 2 is used as the main part of the artificial malleus and provides installation support for the malleus core rod 3. The malleus core rod 3 is used to form a telescopic artificial malleus together with the malleus body 2. The length of the artificial ossicle can be adjusted by adjusting the protruding length of the malleus core rod 3 relative to the malleus body 2.

[0025] It also includes a fixing screw 4 and a fixing knob 5. The fixing screw 4 is arranged on one side of the hammer body 2 and passes through the hammer body 2 and abuts against the hammer core rod 3. The fixing screw 4 is threadedly connected to the hammer body 2 and its part protrudes from the hammer body 2. The fixing knob 5 is arranged on one end of the fixing screw 4 protruding from the hammer body 2 and is fixedly connected to the hammer body 2. The fixing screw 4 is used as a fixing structure on the artificial hammer to fix the relative length between the hammer body 2 and the hammer core rod 3. The fixing knob 5 is used as a knob structure on the fixing screw 4 to drive the fixing screw 4 to rotate. When the length of the artificial hammer needs to be fixed, the fixing knob 5 is rotated to drive the fixing screw 4 to rotate and make it abut against the hammer core rod 3, so that the relative length between the hammer body 2 and the hammer core rod 3 can be fixed.

[0026] The incus structure includes an incus base 6 and an incus body 7, wherein the incus base 6 is arranged at one end of the malleus core rod 3 away from the malleus body 2 and is rotatably connected to the malleus core rod 3 through a connecting structure, and the incus body 7 is arranged on a side of the incus base 6 away from the malleus core rod 3 and is fixedly connected to the incus base 6. The incus structure cooperates with the incus base 6 and the incus body 7 to form an artificial incus in the artificial auditory ossicle, wherein the incus base 6 is used to provide installation support for the incus body 7, and the incus body 7 is used as the main part of the artificial incus. The structural schematic diagram of the incus body 7 of the utility model is shown in Figure 2 shown.

[0027] It also includes a connecting groove 8, which is arranged on the side of the incus body 7 away from the incus base 6. The connecting groove 8 is a hemispherical groove structure. The incus body 7 is connected to the stapes through the connecting groove 8, wherein the connecting groove 8 is used as a connecting structure on the incus body 7 to connect the incus body 7 to the stapes.

[0028] The incus body 7 is configured as a bud-shaped structure and a plurality of groups of weight-reducing grooves 9 are evenly spaced around the circumference thereof. The weight-reducing grooves 9 are configured as an arc-shaped groove structure, wherein the weight-reducing grooves 9 are used to reduce the weight of the incus body 7 and meet the ventilation requirements of the artificial ossicles. The incus body 7 adopts a bud-shaped structure design and the weight-reducing grooves 9 adopt an arc-shaped groove structure, both of which can ensure that the artificial incus is ergonomically designed to avoid harm to the human body during use.

[0029] The connecting structure includes a connecting base 10, a connecting block 11 and a connecting screw 12. The connecting base 10 is arranged at one end of the hammer core rod 3 away from the hammer body 2 and is rotatably connected to the hammer core rod 3 by a screw. The connecting block 11 is arranged at one end of the incus base 6 close to the connecting base 10 and is rotatably connected to the incus base 6. The connecting screw 12 is arranged between the connecting base 10 and the connecting block 11 and is rotatably connected to the connecting base 10 and the connecting block 11. The connecting screw 12 passes through the connecting base 10 and the connecting block 11, and a fastening nut is provided on the upper part of the connecting screw 12. The connecting structure connects the artificial hammer to the artificial auditory ossicle through the connecting base 10, the connecting block 11 and the connecting screw 12, wherein the connecting base 10 is used as a connecting structure on the artificial hammer, the connecting block 11 is used as a connecting structure on the artificial incus, and the connecting screw 12 is used to connect the connecting base 10 with the connecting block 11 to connect the artificial hammer to the artificial auditory ossicle.

[0030] It also includes an adjusting screw 13 and an adjusting knob 14. The adjusting screw 13 is arranged at the connection between the connecting block 11 and the incus base 6 and passes through the connecting block 11 and the incus base 6. The adjusting knob 14 is arranged at one end of the adjusting screw 13 and is fixedly connected to the adjusting screw 13. The adjusting screw 13 is used to rotatably connect the incus base 6 and the connecting block 11 to adjust the angle between the two. The adjusting knob 14 is used as an adjusting structure on the adjusting screw 13, and the adjusting screw 13 can be driven to rotate by rotating the adjusting knob 14.

[0031] The connecting base 10 and the connecting block 11 are configured as forked structures at one end close to the connecting screw 12, and the forked structures of the two are arranged crosswise with each other, the connecting screw 12 vertically penetrates the forked structures of the connecting base 10 and the connecting block 11, and the middle raised structure of the connecting base 10 can meet the sound transmission requirements of the artificial auditory ossicles. Among them, the connection between the connecting base 10 and the connecting block 11 is configured as a forked structure, which can meet the connection requirements of the artificial auditory ossicles while improving its connection stability.

[0032] The utility model also includes a mesh stripe structure 15, which is arranged on the side of the ossicular disc 1 away from the malleus body 2, wherein the mesh stripe structure 15 is used to increase the friction between the ossicular bones and the tympanic membrane, and plays a role in preventing the ossicular bones from falling off. The schematic diagram of the cooperation between the ossicular disc 1 and the mesh stripe structure 15 of the utility model is shown in FIG. Figure 3 shown.

[0033] Working principle:

[0034] Before use, the angle and length of the artificial ossicles are adjusted by the screws at each connection point according to the patient's ossicles. When the length of the artificial ossicles needs to be adjusted, the protruding length of the malleus core rod 3 relative to the malleus body 2 is adjusted, and then the fixing knob 5 is turned to drive the fixing screw 4 to rotate and make it abut against the malleus core rod 3, so that the relative length between the malleus body 2 and the malleus core rod 3 can be fixed, thereby fixing the length of the artificial ossicles. When in use, the incus body 7 is connected to the stapes through the connecting groove 8, and the artificial ossicles are connected to the tympanic membrane through the ossicular disc 1, and the installation of the artificial ossicles is completed.

[0035] The beneficial effects of the utility model are that the hammer structure and the incus structure cooperate to form a combined artificial ossicular structure. The overall structure is stable and will not break to cause harm to the patient. It is highly operable and is provided with a connecting structure, so that the angle between the artificial hammer and the artificial incus can be accurately controlled, so that they can be installed at the stapes according to the conditions of the stapes of different patients. The operation is simple and the stability is strong. The situation of the device being detached from the stapes due to long-term use can be effectively avoided, thereby accelerating the progress of the patient's hearing recovery.

[0036] The above is a detailed description of an embodiment of the utility model, but the content is only a preferred embodiment of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims

1. An artificial auditory ossicle with adjustable angle, comprising an auditory ossicle tray (1), wherein the auditory ossicle tray (1) is arranged vertically, and characterized in that: It also includes a malleus structure used as an adjustable artificial malleus, an incus structure used as an artificial incus, and a connecting structure used to adjustably connect the artificial malleus to the artificial incus, wherein the malleus structure is arranged on one side of the ossicular disc (1), the incus structure is arranged at one end of the malleus structure away from the ossicular disc (1), and the connecting structure is assembled between the malleus structure and the incus structure.

2. The angle-adjustable artificial auditory ossicle according to claim 1, characterized in that: The malleus structure comprises a malleus body (2) and a malleus core rod (3), wherein the malleus body (2) is arranged on one side of the ossicular disc (1) and is fixedly connected to the ossicular disc (1), the interior of the malleus body (2) is arranged as a hollow structure, the malleus core rod (3) is arranged on a side of the malleus body (2) away from the ossicular disc (1) and is plugged into the malleus body (2), and a portion of the malleus core rod (3) protrudes from one end of the malleus body (2) away from the ossicular disc (1).

3. The angle-adjustable artificial auditory ossicle according to claim 2, characterized in that: It also includes a fixing screw (4) and a fixing knob (5), wherein the fixing screw (4) is arranged on one side of the malleus body (2) and passes through the malleus body (2) and abuts against the malleus core rod (3), the fixing screw (4) is threadedly connected to the malleus body (2) and a portion of it protrudes from the malleus body (2), and the fixing knob (5) is arranged at one end of the fixing screw (4) protruding from the malleus body (2) and is fixedly connected to the malleus body (2).

4. The angle-adjustable artificial auditory ossicle according to claim 3, characterized in that: The incus structure comprises an incus base (6) and an incus body (7), wherein the incus base (6) is arranged at one end of the malleus core rod (3) away from the malleus body (2) and is rotatably connected to the malleus core rod (3) via a connecting structure, and the incus body (7) is arranged at a side of the incus base (6) away from the malleus core rod (3) and is fixedly connected to the incus base (6).

5. The angle-adjustable artificial auditory ossicle according to claim 4, characterized in that: It also comprises a connecting groove (8), which is arranged on a side of the incus body (7) away from the incus base (6), and the connecting groove (8) is a hemispherical groove structure, and the incus body (7) is connected to the stapes via the connecting groove (8).

6. The angle-adjustable artificial auditory ossicle according to claim 5, characterized in that: The incus body (7) is configured as a bud-shaped structure and a plurality of groups of weight-reducing grooves (9) are evenly spaced around the circumference thereof, wherein the weight-reducing grooves (9) are configured as arc-shaped groove structures.

7. The angle-adjustable artificial auditory ossicle according to claim 6, characterized in that: The connection structure comprises a connection base (10), a connection block (11) and a connection screw (12); the connection base (10) is arranged at one end of the malleus core rod (3) away from the malleus body (2) and is rotatably connected to the malleus core rod (3) through a screw; the connection block (11) is arranged at one end of the incus base (6) close to the connection base (10) and is rotatably connected to the incus base (6); the connection screw (12) is arranged between the connection base (10) and the connection block (11) and is rotatably connected to the connection base (10) and the connection block (11); the connection screw (12) passes through the connection base (10) and the connection block (11) and a fastening nut is provided on the upper part of the connection screw (12).

8. The angle-adjustable artificial auditory ossicle according to claim 7, characterized in that: It also comprises an adjusting screw (13) and an adjusting knob (14); the adjusting screw (13) is arranged at the connection between the connecting block (11) and the incus base (6) and passes through the connecting block (11) and the incus base (6); the adjusting knob (14) is arranged at one end of the adjusting screw (13) and is fixedly connected to the adjusting screw (13).

9. The angle-adjustable artificial auditory ossicle according to claim 8, characterized in that: The connection base (10) and the connection block (11) are configured as forked structures at one end close to the connection screw (12), and the forked structures of the two are arranged crosswise with each other, and the connection screw (12) vertically penetrates the forked structures of the connection base (10) and the connection block (11).

10. The angle-adjustable artificial auditory ossicle according to claim 9, characterized in that: It also comprises a mesh-like striped structure (15), wherein the mesh-like striped structure (15) is arranged on a side of the ossicular disc (1) away from the malleus body (2).

Images