Anti-falling artificial ossicular structure

Abstract

The utility model discloses an anti-falling artificial ossicular structure which comprises an ossicular disc arranged on one side of a tympanic membrane and further comprises an ossicular mechanism used for forming a multi-section ossicular structure, an adjusting mechanism used for adjusting the ossicular installation angle and a supporting mechanism used for preventing the ossicular from falling off. The auditory membrane mechanism is arranged on the auditory ossicle disc, the auditory ossicle mechanism is arranged on the auditory ossicle disc, the auditory membrane mechanism is arranged on the auditory ossicle disc, the auditory ossicle mechanism is arranged on the side, away from the auditory membrane mechanism, of the auditory ossicle disc, the adjusting mechanism is assembled on the side portion of the auditory ossicle mechanism, and the supporting mechanism is arranged at the end, away from the auditory ossicle disc, of the auditory ossicle mechanism. The mounting angle of the artificial auditory ossicle can be adjusted according to actual conditions, the use flexibility is high, the supporting mechanism is arranged, the artificial auditory ossicle can be stably and reliably supported and fixed between the tympanic membrane and the stapes, the problem of lodging and dislocation is not prone to occurring, the mounting stability is high, the structure is gentle and reliable, and injury to a patient is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of medical appliances, in particular to an anti-dropping artificial ossicle structure. Background Art

[0002] In the prior art, during hearing conduction, the tympanic membrane vibrates the ossicular chain, and then the sound energy is conducted to the inner ear by the ossicles. Among current otolaryngology patients, patients with poor hearing are often encountered. After examination, it is found that a considerable part of them are caused by lesions invading the middle ear, and at the same time, the ossicles in the middle ear may be damaged. For example, many diseases such as otitis media, cholesteatoma of the middle ear, and congenital dysplasia of the middle ear will lead to conductive hearing loss due to the interruption or fixation of the ossicles. To solve this type of conductive hearing loss problem, artificial ossicles need to be used in middle ear surgery to reconstruct hearing. The artificial ossicle replaces the original position of the ossicles and re-establishes an effective connection between the tympanic membrane and the stapes head, so that sound can still be conducted from the tympanic membrane to the inner ear. The average postoperative hearing improvement can reach 17.5 decibels. When only the stapes footplate exists and the stapes footplate has good mobility due to the loss of the two arches of the stapes, the artificial ossicle needs to be supported between the tympanic membrane and the stapes footplate to reconstruct hearing. However, the existing artificial ossicles are prone to the problem of lodging and dislocation, which affects the hearing recovery of patients.

[0003] The Chinese utility model patent with the application number 202120218098.3 discloses an artificial ossicle, which includes a support disc, a support column, and an auxiliary support mechanism; the support disc is arranged to be in contact with the tympanic membrane, the support disc is fixedly connected with the support column, one end of the support column away from the support disc is provided with a support part, and a positioning part is arranged on the support column. The support part is arranged to be in contact with the stapes footplate; the auxiliary support mechanism includes a fixing part and at least two auxiliary support parts. The fixing part is matched with the positioning part to install the auxiliary support mechanism on the support column. The auxiliary support parts are connected with the fixing part and extend towards the direction of the support part. The auxiliary support parts are arranged to be in contact with the inner wall of the tympanic cavity. However, the structure of the auxiliary support parts in this artificial ossicle is relatively sharp, which is easy to cause harm to patients. Moreover, the fixing part is sleeved on the support column, and relative sliding is likely to occur between the two, resulting in the detachment of the auxiliary support parts, and the installation stability is poor, affecting the working effect of the artificial ossicle. The installation angle of this artificial ossicle cannot be adjusted according to the actual situation, and the use flexibility is poor. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an anti-dropping artificial ossicle structure.

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

[0006] An anti-detachment artificial ossicle structure includes an ossicle disc, which is arranged on one side of the tympanic membrane. It also includes an ossicle mechanism for forming a multi-segment ossicle structure, an adjustment mechanism for adjusting the installation angle of the ossicle, and a support mechanism for preventing the ossicle from detaching. The ossicle mechanism is arranged on the side of the ossicle disc away from the tympanic membrane mechanism, the adjustment mechanism is assembled on the side of the ossicle mechanism, and the support mechanism is configured at one end of the ossicle mechanism away from the ossicle disc.

[0007] The ossicle mechanism includes an ossicle disc connecting block, a connecting component, an ossicle main rod, and a stapes component. The ossicle disc connecting block is arranged on the side of the ossicle disc away from the tympanic membrane and is fixedly connected to the ossicle disc. The connecting component is arranged at one end of the ossicle disc connecting block away from the ossicle disc. The ossicle main rod is configured at one end of the connecting component away from the ossicle disc connecting block. The stapes component is arranged at one end of the ossicle main rod away from the connecting component.

[0008] The connecting component includes a connecting base block, a connecting shaft, and a connecting limit block. The connecting base block is arranged between the ossicle disc connecting block and the ossicle main rod. There are two groups of connecting shafts, and the two groups of connecting shafts are symmetrically arranged at both ends of the connecting base block and are fixedly connected to the connecting base block. There are two groups of connecting limit blocks, and the two groups of connecting limit blocks are respectively arranged on the sides of the ossicle disc connecting block and the ossicle main rod close to the connecting base block and are fixedly connected to the corresponding ossicle disc connecting block or the ossicle main rod. The connecting limit block is sleeved outside the corresponding connecting shaft, and the inner diameter of the connecting limit block is larger than the outer diameter of the connecting shaft. The ossicle disc connecting block and the ossicle main rod are rotatably connected to the ends of the connecting base block through the corresponding connecting limit blocks and the connecting shafts.

[0009] The stapes component includes a stapes strut and a stapes protrusion. The stapes strut is arranged at one end of the ossicle main rod away from the connecting base block and is fixedly connected to the ossicle main rod. The stapes protrusion is arranged at one end of the stapes strut away from the ossicle main rod and is fixedly connected to the stapes strut. The stapes protrusion is set as an enclosed protrusion structure.

[0010] The adjustment mechanism includes an adjustment clamp, an adjustment side plate, an ossicle adjustment component, and an ossicle disc adjustment component. The adjustment clamp is arranged outside the middle of the connecting base block and is clamped to the connecting base block. The adjustment side plate is arranged on one side of the adjustment clamp and is rotatably connected to the adjustment clamp through screws. The ossicle adjustment component is arranged on the side of the adjustment side plate away from the ossicle main rod corresponding to the ossicle main rod. The ossicle disc adjustment component is arranged on the side of the adjustment side plate away from the ossicle main rod corresponding to the ossicle disc connecting block.

[0011] The ossicle adjustment assembly includes a micro-adjustment motor, an adjustment knob, an adjustment gear disk, and an adjustment sleeve bracket. The micro-adjustment motor is disposed on a side of the adjustment side plate away from the main ossicle rod and fixedly connected to the adjustment side plate. The adjustment knob is disposed at one end of the adjustment side plate and penetrates through the adjustment side plate to be rotatably connected to the adjustment side plate. The adjustment knob is arranged adjacent to the micro-adjustment motor. The adjustment gear disk is disposed in the middle of the adjustment knob and fixedly connected to the adjustment knob. The output end of the micro-adjustment motor is in transmission connection with the adjustment gear disk through a gear. The adjustment sleeve bracket is correspondingly disposed at the end of the adjustment knob with respect to the main ossicle rod and fixedly connected to the adjustment knob. The adjustment sleeve bracket is sleeved on the outside of the main ossicle rod.

[0012] The pelvic bone adjustment assembly includes an adjustment rotating rod and an adjustment base block. The adjustment rotating rod is disposed at one end of the adjustment side plate away from the adjustment knob and penetrates through the adjustment side plate to be rotatably connected to the adjustment side plate. The adjustment base block is correspondingly disposed at the side of the pelvic bone connection block with respect to the adjustment rotating rod and fixedly connected to the pelvic bone connection block. The adjustment base block is fixedly connected to the end of the adjustment rotating rod.

[0013] The support mechanism includes a support mounting frame, a support screw, and an anti-disengagement assembly. The support mounting frame is disposed on the side of the stapes branch rod and fixedly connected to the stapes branch rod. The support screw is disposed on the side of the support mounting frame and penetrates through the support mounting frame and the stapes branch rod. The support mounting frame is fixedly connected to the stapes branch rod through the support screw. There are two groups of anti-disengagement assemblies, and the two groups of anti-disengagement assemblies are symmetrically disposed on both sides of the support mounting frame and located on both sides of the stapes protrusion.

[0014] The anti-disengagement assembly includes an anti-disengagement bracket and an anti-disengagement top block. The anti-disengagement bracket is disposed on the side of one end of the support mounting frame close to the stapes protrusion and fixedly connected to the support mounting frame. The anti-disengagement bracket is an L-shaped bracket structure. The anti-disengagement top block is disposed at one end of the anti-disengagement bracket away from the support mounting frame and fixedly connected to the anti-disengagement bracket.

[0015] It further includes an anti-disengagement pad. The anti-disengagement pad is disposed on a side of the anti-disengagement top block away from the anti-disengagement bracket and fixedly connected to the anti-disengagement top block.

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

[0017] There is an ossicle mechanism cooperating with an adjustment mechanism to form a multi-segment adjustable artificial ossicle structure, which can adjust the installation angle of the artificial ossicle according to actual situations, with strong flexibility in use. There is a support mechanism, which can stably and reliably support and fix the artificial ossicle between the eardrum and the stapes, and is not prone to the problem of lodging and dislocation, with strong installation stability. Its structure is gentle and reliable, and will not cause harm to patients. 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 ossicular mechanism structure of the present utility model;

[0020] Figure 3 is a schematic diagram of the cooperation of the connecting shaft, the connecting limit block and the pelvic connecting block of the present utility model;

[0021] Figure 4 is a schematic diagram of the anti - detachment component structure of the present utility model.

[0022] In the figures: 1, ossicular disc; 2, pelvic connecting block; 3, main ossicular rod; 4, connecting base block; 5, connecting shaft; 6, connecting limit block; 7, stapes branch rod; 8, stapes protrusion; 9, adjusting clamp; 10, adjusting side plate; 11, micro - adjusting motor; 12, adjusting knob; 13, adjusting gear disc; 14, adjusting sleeve frame; 15, adjusting rotating rod; 16, adjusting base block; 17, support mounting frame; 18, support screw; 19, anti - detachment bracket; 20, anti - detachment top block; 21, anti - detachment pad. Detailed Description of the Preferred Embodiment

[0023] The present utility model will be further described in detail below with reference to the drawings.

[0024] An anti - detachment artificial ossicle structure includes an ossicular disc 1 arranged on one side of the eardrum. It further includes an ossicular mechanism for forming a multi - segment ossicle structure, an adjusting mechanism for adjusting the installation angle of the ossicle, and a support mechanism for preventing the ossicle from detaching. The ossicular mechanism is arranged on the side of the ossicular disc 1 away from the eardrum mechanism, the adjusting mechanism is assembled on the side of the ossicular mechanism, and the support mechanism is configured at one end of the ossicular mechanism away from the ossicular disc 1. The schematic diagram of the overall structure of the present utility model is as shown in Figure 1 the figure.

[0025] The ossicular mechanism includes a pelvic connecting block 2, a connecting component, an ossicular main rod 3, and a stapes component. The pelvic connecting block 2 is arranged on the side of the ossicular disc 1 away from the eardrum and is fixedly connected to the ossicular disc 1. The connecting component is arranged at the end of the pelvic connecting block 2 away from the ossicular disc 1. The ossicular main rod 3 is disposed at the end of the connecting component away from the pelvic connecting block 2. The stapes component is arranged at the end of the ossicular main rod 3 away from the connecting component. The ossicular mechanism is configured by the cooperation of the pelvic connecting block 2, the connecting component, the ossicular main rod 3, and the stapes component to form a segmented artificial ossicle structure. Among them, the pelvic connecting block 2 is used to provide installation support for the ossicular disc 1 and connect the ossicular disc 1 with the ossicular mechanism. The connecting component is used to connect the pelvic connecting block 2 and the ossicular main rod 3 and can adjust the installation angle between the two. The ossicular main rod 3 is used to provide installation support for the stapes component and serve as the main body part of the artificial ossicle. The stapes component is used as an installation structure on the artificial ossicle to achieve the installation connection between the artificial ossicle and the stapes footplate. The schematic structural diagram of the ossicular mechanism of the present utility model is as shown in Figure 2 shown.

[0026] The connecting component includes a connecting base block 4, a connecting shaft 5, and a connecting limit block 6. The connecting base block 4 is arranged between the pelvic connecting block 2 and the ossicular main rod 3. There are two groups of connecting shafts 5, and the two groups of connecting shafts 5 are symmetrically arranged at both ends of the connecting base block 4 and are fixedly connected to the connecting base block 4. There are two groups of connecting limit blocks 6, and the two groups of connecting limit blocks 6 are respectively arranged on the sides of the pelvic connecting block 2 and the ossicular main rod 3 close to the connecting base block 4 and are fixedly connected to the corresponding pelvic connecting block 2 or ossicular main rod 3. The connecting limit block 6 is sleeved outside the corresponding connecting shaft 5, and the inner diameter of the connecting limit block 6 is larger than the outer diameter of the connecting shaft 5. The pelvic connecting block 2 and the ossicular main rod 3 are rotationally connected to the ends of the connecting base block 4 through the corresponding connecting limit blocks 6 and connecting shafts 5. The connecting component cooperates with the connecting base block 4, the connecting shaft 5, and the connecting limit block 6 to connect the pelvic connecting block 2 and the ossicular main rod 3 and adjust the installation angle between the two. Among them, the connecting base block 4 is used to provide installation support for the connecting shaft 5. The connecting shaft 5 is used as a connecting installation structure on the connecting base block 4. The connecting limit block 6 is used as a connecting limit structure on the pelvic connecting block 2 and the ossicular main rod 3, so as to cooperate with the connecting shaft 5 to achieve the installation connection between the pelvic connecting block 2 and the ossicular main rod 3 and the connecting base block 4. The schematic diagram of the cooperation between the connecting shaft 5 and the connecting limit block of the present utility model and the pelvic connecting block 2 is as shown in Figure 3 shown.

[0027] The stapes assembly includes a stapes strut 7 and a stapes projection 8. The stapes strut 7 is disposed at one end of the ossicular main rod 3 away from the connecting base block 4 and is fixedly connected to the ossicular main rod 3. The stapes projection 8 is disposed at one end of the stapes strut 7 away from the ossicular main rod 3 and is fixedly connected to the stapes strut 7. The stapes projection 8 is configured as an enclosed projection structure. The stapes assembly realizes the installation connection between the artificial ossicle and the stapes footplate through the cooperation of the stapes strut 7 and the stapes projection 8. Among them, the stapes strut 7 is used to provide installation support for the stapes projection 8, and the stapes projection 8 is used to jointly form an installation structure on the artificial ossicle with the stapes strut 7 to realize the installation connection between the artificial ossicle and the stapes footplate.

[0028] The adjusting mechanism includes an adjusting clamp 9, an adjusting side plate 10, an ossicle adjusting assembly, and a bone plate adjusting assembly. The adjusting clamp 9 is disposed on the outer side of the middle part of the connecting base block 4 and is clamped to the connecting base block 4. The adjusting side plate 10 is disposed on one side of the adjusting clamp 9 and is rotatably connected to the adjusting clamp 9 by screws. The ossicle adjusting assembly is arranged corresponding to the ossicular main rod 3 on the side of the adjusting side plate 10 away from the ossicular main rod 3, and the bone plate adjusting assembly is arranged corresponding to the bone plate connecting block 2 on the side of the adjusting side plate 10 away from the ossicular main rod 3. The adjusting mechanism constitutes an adjusting structure on the side of the artificial ossicle through the cooperation of the adjusting clamp 9, the adjusting side plate 10, the ossicle adjusting assembly, and the bone plate adjusting assembly. Among them, the adjusting clamp 9 is used as an adjusting installation structure on the side of the connecting base block 4, the adjusting side plate 10 is used to provide installation support for the ossicle adjusting assembly and the bone plate adjusting assembly, the ossicle adjusting assembly is used to adjust the installation angle between the ossicular main rod 3 and the connecting base block 4, and the bone plate adjusting assembly is used to adjust the installation angle between the ossicular plate 1 and the connecting base block 4.

[0029] The ossicle adjusting assembly includes a micro-adjusting motor 11, an adjusting knob 12, an adjusting gear disk 13, and an adjusting sleeve bracket 14. The micro-adjusting motor 11 is arranged on the side of the adjusting side plate 10 away from the ossicle main rod 3 and fixedly connected to the adjusting side plate 10. The adjusting knob 12 is arranged at one end of the adjusting side plate 10 and penetrates through the adjusting side plate 10 to be rotatably connected to the adjusting side plate 10. The adjusting knob 12 is arranged adjacent to the micro-adjusting motor 11. The adjusting gear disk 13 is arranged in the middle of the adjusting knob 12 and fixedly connected to the adjusting knob 12. The output end of the micro-adjusting motor 11 is in transmission connection with the adjusting gear disk 13 through a gear. The adjusting sleeve bracket 14 is arranged corresponding to the ossicle main rod 3 at the end of the adjusting knob 12 and fixedly connected to the adjusting knob 12. The adjusting sleeve bracket 14 is sleeved on the outside of the ossicle main rod 3. The ossicle adjusting assembly adjusts the installation angle between the ossicle main rod 3 and the connecting base block 4 through the cooperation of the micro-adjusting motor 11, the adjusting knob 12, the adjusting gear disk 13, and the adjusting sleeve bracket 14. Among them, the micro-adjusting motor 11 is used to drive the adjusting knob 12 to rotate through the adjusting gear disk 13. A remote control module is built into the micro-adjusting motor 11, and the micro-adjusting motor 11 can be wirelessly controlled through the remote control module. The micro-adjusting motor 11 and the remote control module can be selected from the publicly available micro-motors with remote control functions in the prior art. The adjusting knob 12 is used to drive the ossicle main rod 3 to rotate a certain angle under the action of the micro-adjusting motor 11 and the adjusting gear disk 13 to adjust the installation angle between the ossicle main rod 3 and the connecting base block 4. The installation angle between the ossicle main rod 3 and the connecting base block 4 can be adjusted by directly manually controlling the adjusting knob 12 to rotate a certain angle. The adjusting gear disk 13 is used as an adjusting installation structure on the adjusting knob 12 to realize the cooperative connection between the adjusting knob 12 and the adjusting motor. The adjusting sleeve bracket 14 is used as a sleeve structure on the side of the ossicle main rod 3 to realize the connection between the adjusting knob 12 and the ossicle main rod 3.

[0030] The ossicular plate adjusting assembly includes an adjusting rotating rod 15 and an adjusting base block 16. The adjusting rotating rod 15 is arranged at the end of the adjusting side plate 10 away from the adjusting knob 12 and penetrates through the adjusting side plate 10 to be rotatably connected to the adjusting side plate 10. The adjusting base block 16 is arranged corresponding to the adjusting rotating rod 15 on the side of the ossicular plate connecting block 2 and fixedly connected to the ossicular plate connecting block 2. The adjusting base block 16 is fixedly connected to the end of the adjusting rotating rod 15. The ossicular plate adjusting assembly adjusts the installation angle between the ossicular plate 1 and the connecting base block 4 through the cooperation of the adjusting rotating rod 15 and the adjusting base block 16. Among them, the adjusting rotating rod 15 is used to drive the ossicular plate connecting block 2 to rotate relative to the connecting base block 4 through the adjusting base block 16. The adjusting base block 16 is used as an installation structure on the ossicular plate connecting block 2 to cooperate with the adjusting rotating rod 15.

[0031] The support mechanism includes a support mounting bracket 17, a support screw 18, and an anti - detachment component. The support mounting bracket 17 is arranged on the side of the stapes strut 7 and fixedly connected to the stapes strut 7. The support screw 18 is arranged on the side of the support mounting bracket 17 and penetrates through the support mounting bracket 17 and the stapes strut 7. The support mounting bracket 17 is fixedly connected to the stapes strut 7 through the support screw 18. There are two groups of anti - detachment components, which are symmetrically arranged on both sides of the support mounting bracket 17 and located on both sides of the stapes bulge 8. The support mechanism, through the cooperation of the support mounting bracket 17, the support screw 18, and the anti - detachment component, constitutes the support structure on the side of the stapes component to improve the cooperation stability between the stapes component and the stapes footplate. Among them, the support mounting bracket 17 is used to provide installation support for the anti - detachment component to install the anti - detachment component on the stapes strut 7. The support screw 18 is used to realize the installation connection between the support mounting bracket 17 and the stapes strut 7. The anti - detachment component is used as the anti - detachment structure on the support mounting bracket 17 to prevent the stapes bulge 8 from detaching from the stapes footplate, thereby improving the stability between the two.

[0032] The anti - detachment component includes an anti - detachment bracket 19 and an anti - detachment top block 20. The anti - detachment bracket 19 is arranged on the side of one end of the support mounting bracket 17 close to the stapes bulge 8 and fixedly connected to the support mounting bracket 17. The anti - detachment bracket 19 is an L - shaped bracket structure. The anti - detachment top block 20 is arranged at the end of the anti - detachment bracket 19 far from the support mounting bracket 17 and fixedly connected to the anti - detachment bracket 19. The anti - detachment component, through the cooperation of the anti - detachment bracket 19 and the anti - detachment top block 20, constitutes the anti - detachment structure on the support mounting bracket 17. Among them, the anti - detachment bracket 19 is used to provide installation support for the anti - detachment top block 20, and the anti - detachment top block 20 is used to cooperate with the stapes bulge 8 to cooperate with the stapes footplate. The schematic structural diagram of the anti - detachment component of the present utility model is as Figure 4 shown.

[0033] It further includes an anti - detachment pad 21. The anti - detachment pad 21 is arranged on the side of the anti - detachment top block 20 far from the anti - detachment bracket 19 and fixedly connected to the anti - detachment top block 20. Among them, the anti - detachment pad 21 is used as the anti - slip structure on the anti - detachment top block 20, thereby improving the installation stability between the anti - detachment top block 20 and the stapes footplate.

[0034] Working principle:

[0035] When an artificial ossicle needs to be used, according to the patient's ear canal condition, the installation angles between the ossicle main rod 3 and the connection base block 4 and between the ossicle disc 1 and the connection base block 4 are adjusted through the adjustment mechanism. Then, the artificial ossicle is placed into the patient's ear canal, the ossicle disc 1 is connected to the eardrum, the stapes bulge 8 is connected to the stapes footplate, and at the same time, the support mechanism cooperates with the stapes component to be connected to the stapes footplate to improve the connection stability between the artificial ossicle and the stapes footplate and prevent detachment. In the installed state, the micro - adjustment motor 11 can be controlled to work to adjust the installation angle between the ossicle main rod 3 and the connection base block 4.

[0036] The beneficial effects of the present utility model are as follows: the ossicular mechanism is combined with the adjustment mechanism to form a multi-segment adjustable artificial ossicle structure, which can adjust the installation angle of the artificial ossicle according to the actual situation, with strong flexibility in use. There is a support mechanism, which can stably and reliably support and fix the artificial ossicle between the eardrum and the stapes, and it is not easy to produce problems of lodging and dislocation, with strong installation stability. Its structure is gentle and reliable, and it will not cause harm to patients.

[0037] 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 scope of implementation of the present utility model. All equivalent changes and improvements made according to the scope of application of the present utility model should still fall within the scope covered by the patent of the present utility model.

Claims

1. An anti-dropping artificial ossicular structure, comprising an ossicular plate (1), wherein the ossicular plate (1) is arranged on one side of the tympanic membrane, and characterized in that: It also includes an ossicular mechanism for forming a multi-section ossicular structure, an adjusting mechanism for adjusting the installation angle of the ossicular structure, and a supporting mechanism for preventing the ossicular structure from falling off. The ossicular mechanism is arranged on a side of the ossicular plate (1) away from the tympanic membrane mechanism, the adjusting mechanism is mounted on the side of the ossicular mechanism, and the supporting mechanism is arranged on an end of the ossicular mechanism away from the ossicular plate (1).

2. The anti-dropping artificial ossicular structure according to claim 1, characterized in that: The ossicular mechanism comprises a pelvic connecting block (2), a connecting assembly, an ossicular main rod (3) and a stapes assembly, wherein the pelvic connecting block (2) is arranged on a side of the ossicular pelvis (1) away from the tympanic membrane and is fixedly connected to the ossicular pelvis (1), the connecting assembly is arranged at one end of the pelvic connecting block (2) away from the ossicular pelvis (1), the ossicular main rod (3) is arranged at one end of the connecting assembly away from the pelvic connecting block (2), and the stapes assembly is arranged at one end of the ossicular main rod (3) away from the connecting assembly.

3. The anti-dropping artificial ossicular structure according to claim 2, characterized in that: The connection assembly comprises a connection base block (4), a connection shaft (5) and a connection limit block (6); the connection base block (4) is arranged between the pelvic connection block (2) and the ossicular main rod (3); the connection shaft (5) is provided with two groups, the two groups of the connection shafts (5) are symmetrically arranged at the two ends of the connection base block (4) and are fixedly connected to the connection base block (4); the connection limit blocks (6) are provided with two groups, the two groups of the connection limit blocks (6) are respectively arranged on the pelvic connection block (2) and the The ossicular main rod (3) is close to one side of the connecting base block (4) and is fixedly connected to the corresponding pelvic connecting block (2) or the ossicular main rod (3); the connecting limit block (6) is sleeved on the outer side of the corresponding connecting shaft (5) and the inner diameter of the connecting limit block (6) is larger than the outer diameter of the connecting shaft (5); the pelvic connecting block (2) and the ossicular main rod (3) are rotatably connected to the end of the connecting base block (4) via the corresponding connecting limit block (6) and the connecting shaft (5).

4. The anti-dropping artificial ossicular structure according to claim 3, characterized in that: The stapes assembly comprises a stapes support rod (7) and a stapes protrusion (8); the stapes support rod (7) is arranged at one end of the ossicular main rod (3) away from the connecting base block (4) and is fixedly connected to the ossicular main rod (3); the stapes protrusion (8) is arranged at one end of the stapes support rod (7) away from the ossicular main rod (3) and is fixedly connected to the stapes support rod (7); the stapes protrusion (8) is arranged as an enclosing protrusion structure.

5. The anti-dropping artificial ossicular structure according to claim 4, characterized in that: The adjustment mechanism comprises an adjustment clamp (9), an adjustment side plate (10), an ossicular adjustment assembly and a pelvic adjustment assembly, wherein the adjustment clamp (9) is arranged on the outer side of the middle part of the connecting base block (4) and is clamped with the connecting base block (4), the adjustment side plate (10) is arranged on one side of the adjustment clamp (9) and is rotatably connected to the adjustment clamp (9) via a screw, the ossicular adjustment assembly is arranged on a side of the adjustment side plate (10) away from the ossicular main rod (3) corresponding to the ossicular main rod (3), and the pelvic adjustment assembly is arranged on a side of the adjustment side plate (10) away from the ossicular main rod (3) corresponding to the pelvic connecting block (2).

6. The anti-dropping artificial ossicular structure according to claim 5, characterized in that: The ossicular adjustment component comprises a micro-adjustment motor (11), an adjustment knob (12), an adjustment toothed disc (13) and an adjustment sleeve (14); the micro-adjustment motor (11) is arranged on a side of the adjustment side plate (10) away from the ossicular main rod (3) and is fixedly connected to the adjustment side plate (10); the adjustment knob (12) is arranged at one end of the adjustment side plate (10) and passes through the adjustment side plate (10) and is rotationally connected to the adjustment side plate (10); the adjustment knob (12) is connected to the micro-adjustment motor (11) and the adjustment knob (12) is connected to the micro-adjustment motor (11). The micro-adjusting motor (11) is arranged adjacent to the adjusting knob (12), the adjusting toothed disc (13) is arranged in the middle of the adjusting knob (12) and is fixedly connected to the adjusting knob (12), the output end of the micro-adjusting motor (11) is transmission-connected to the adjusting toothed disc (13) via a gear, the adjusting sleeve (14) is arranged at the end of the adjusting knob (12) corresponding to the ossicular main rod (3) and is fixedly connected to the adjusting knob (12), and the adjusting sleeve (14) is sleeved on the outer side of the ossicular main rod (3).

7. The anti-dropping artificial ossicular structure according to claim 6, characterized in that: The pelvic adjustment assembly comprises an adjustment rotating rod (15) and an adjustment base block (16); the adjustment rotating rod (15) is arranged at one end of the adjustment side plate (10) away from the adjustment knob (12) and passes through the adjustment side plate (10) and is rotatably connected to the adjustment side plate (10); the adjustment base block (16) is arranged on the side of the pelvic connecting block (2) corresponding to the adjustment rotating rod (15) and is fixedly connected to the pelvic connecting block (2); the adjustment base block (16) is fixedly connected to the end of the adjustment rotating rod (15).

8. The anti-dropping artificial ossicular structure according to claim 7, characterized in that: The support mechanism comprises a support mounting frame (17), a support screw (18) and an anti-slip assembly, wherein the support mounting frame (17) is arranged on the side of the stapes support rod (7) and is fixedly connected to the stapes support rod (7), the support screw (18) is arranged on the side of the support mounting frame (17) and penetrates the support mounting frame (17) and the stapes support rod (7), the support mounting frame (17) is fixedly connected to the stapes support rod (7) through the support screw (18), and the anti-slip assembly is provided with two groups, and the two groups of anti-slip assemblies are symmetrically arranged on both sides of the support mounting frame (17) and located on both sides of the stapes protrusion (8).

9. The anti-dropping artificial ossicular structure according to claim 8, characterized in that: The anti-slip component comprises an anti-slip bracket (19) and an anti-slip top block (20); the anti-slip bracket (19) is arranged on the side of one end of the support mounting frame (17) close to the stapes protrusion (8) and is fixedly connected to the support mounting frame (17); the anti-slip bracket (19) is an L-shaped bracket structure; the anti-slip top block (20) is arranged on one end of the anti-slip bracket (19) away from the support mounting frame (17) and is fixedly connected to the anti-slip bracket (19).

10. The anti-dropping artificial ossicular structure according to claim 9, characterized in that: It also comprises an anti-slip pad (21), which is arranged on a side of the anti-slip top block (20) away from the anti-slip bracket (19) and is fixedly connected to the anti-slip top block (20).

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