An assembled artificial ossicle structure

Abstract

The utility model discloses an assembly type artificial ossicle structure, including support rod, the support rod is arranged between the stirrup bottom plate and anvil or malleus, still including the connecting mechanism for constituting linear type connecting structure and the installation mechanism for constituting assembly type mounting structure, the connecting mechanism configuration in the support rod far from stirrup bottom plate one end, the installation mechanism is arranged in the connecting mechanism far from the support rod one end, the utility model has the beneficial effect that is equipped with the connecting mechanism, can constitute sectional type pole body structure with the support rod together and can bend a certain angle according to the use demand, is equipped with the installation mechanism, and its mounting end structure is various, can select the mounting end head of corresponding structure according to the patient middle ear situation and realizes the reconstruction process of ossicular chain, realizes the installation connection between artificial ossicle and anvil or malleus through the way of suit or clamping, and the connection stability is strong, avoids the phenomenon that artificial ossicle appears to fall, can realize the quick assembly between artificial ossicle and anvil or malleus.

Description

Technical Field

[0001] This utility model relates to the field of artificial ossicle technology, and in particular to an assembled artificial ossicle structure. Background Technology

[0002] In existing technologies, the ossicles of the middle ear are often easily damaged due to disease, trauma, or congenital malformations. The middle ear ossicles consist of three small bones, also known as the ossicular chain, which, from the outside in, are: malleus, incus, and stapes. The stapes consists of the stapes arch and the stapes footplate, the latter of which is in contact with the perilymph of the inner ear and is the last structure in the middle ear to transmit vibrations to the inner ear. Sound is transmitted through the vibration of the tympanic membrane, which causes the ossicular chain to vibrate, thus transmitting sound waves to the inner ear. The cochlear hair cells then convert the mechanical waves of the sound waves into electrical impulses, allowing the brain to perceive the sound. The movement of the ossicular chain plays a crucial role in sound transmission. As one of the three ossicles of the ossicular chain, the stapes, shaped like a stirrup, is only 2.6 mm to 5.5 mm long and weighs only 2 to 4 milligrams, making it the smallest and lightest bone in the human body. The stapes, located within the middle ear cavity and connected externally to the incus, is responsible for transmitting sound wave vibrations to the cochlea via a tiny membrane, transforming sound waves into audible sounds. The root cause of otosclerosis is primarily a problem with the stapes. When a damaged stapes is replaced with an ossicular prosthesis, the vibrations transmitted from the tympanic membrane are partially or completely compensated for and transmitted to the inner ear, thus completely curing the ear disease caused by the vibration transmission failure.

[0003] Currently, ossicular chain (stapedius) prostheses are generally composed of monofilament / plate-shaped hooks and cylindrical connectors to reconstruct the ossicular chain. Existing ossicular prostheses on the market, due to their monofilament hook structure design, are prone to causing ligature marks at the contact site, which can lead to the risk of bone necrosis. Furthermore, the monofilament structure has poor stability during use, which can easily cause twisting and displacement of the ossicular implant, thus increasing the chance of a second surgery. Alternatively, the plate-shaped hook structure is heavier, bulkier, and less flexible than the bimetallic wire hook structure.

[0004] Chinese utility model patent application number 202022881378.0 discloses a ring-shaped ossicle prosthesis, including a bimetallic wire hook and a connector. The upper end of the bimetallic wire hook has two externally tangent semi-open rings, one small and one large, and the lower end is a connecting part. The connector is a cylindrical structure with several annular grooves on its lower outer surface. The connecting part at the lower end of the bimetallic wire hook is partially embedded in the connector. However, this type of ring-shaped ossicle prosthesis, which only uses semi-open rings to connect the artificial ossicle to the incus, has poor connection stability and is prone to detachment. It cannot achieve rapid assembly between the hook structure and the incus, nor can it adjust the angle of the artificial ossicle, resulting in poor flexibility of use. Summary of the Invention

[0005] The purpose of this invention is to provide a prefabricated artificial ossicle structure.

[0006] To achieve the above objectives, the technical solution proposed by this utility model is as follows: A prefabricated artificial ossicle structure includes a support rod arranged between the stapes base plate and the incus or malleus. It also includes a connecting mechanism for forming a linear connection structure and an installation mechanism for forming a prefabricated installation structure. The connecting mechanism is located at the end of the support rod away from the stapes base plate, and the installation mechanism is located at the end of the connecting mechanism away from the support rod.

[0007] The connecting mechanism includes a connecting end and a connecting rod. The connecting end is located at the end of the support rod away from the stapes base plate and is integrally formed with the support rod. The connecting rod is located at the end of the connecting end away from the support rod and is integrally formed with the connecting end.

[0008] The connecting end is configured with an arc-shaped end structure, and both the connecting rod and the support rod are configured with cylindrical rod structures, with the diameter of the connecting rod being smaller than the diameter of the support rod. The connecting rod, the connecting end, and the support rod together constitute a segmented rod structure.

[0009] The installation mechanism includes an installation end and a quick-release end block. The installation end is located at the end of the connecting rod away from the connecting end and is integrally formed with the connecting rod. The installation end adopts a collar-type end structure. The quick-release end block is located on one side of the installation end and is integrally formed with the installation end.

[0010] The mounting end is configured as a twisted collar structure with an opening on the side near the connecting rod. The quick-release end block is arranged at the opening of the mounting end and together with the mounting end forms a twisted hook structure. The end of the artificial ossicle away from the stapes base plate is connected to the incus or malleus through the twisted hook structure.

[0011] The installation mechanism includes an installation end and a guide end block. The installation end is located at the end of the connecting rod away from the connecting end and is integrally formed with the connecting rod. The installation end adopts a clamping end structure. The guide end block is located on one side of the installation end and is integrally formed with the installation end.

[0012] The mounting end is configured as an elephant trunk clamping structure with an opening on one side. The middle part of the mounting end has a clamping groove corresponding to the incus or malleus. The guide block is arranged at the opening of the mounting end and together with the mounting end forms a clamping clamp structure. The end of the artificial ossicle away from the stapes base plate is clamped and connected to the incus or malleus through the clamping clamp structure.

[0013] The mounting mechanism includes a mounting base, an adjustment component, and a mounting end. The mounting base is located at the end of the connecting rod away from the connecting end and is integrally formed with the connecting rod. The mounting base is a frame-type bracket structure with an opening at the end away from the connecting rod. The adjustment component is assembled at the end of the mounting base with the opening, and the mounting base has a mounting through hole corresponding to the adjustment component. The mounting end is located at the end of the adjustment component away from the mounting base and adopts a snap-fit ​​end structure.

[0014] The adjustment assembly includes an adjustment ball and an adjustment rod. The adjustment ball is located at one end of the mounting base with an opening and is snapped into the mounting base through a mounting through hole. The adjustment rod is located on one side of the adjustment ball and is integrally formed with the adjustment ball. The adjustment rod is universally connected to the mounting base through the adjustment ball. The mounting end is located at the end of the adjustment rod away from the adjustment ball and is integrally formed with the adjustment rod.

[0015] The installation end is configured as a tail clip type clamping structure with an opening on one side. The middle part of the installation end is provided with a clamping groove corresponding to the incus or malleus, and its opening is configured as an arc-shaped guide structure. The end of the artificial ossicle away from the stapes base plate is clamped and connected to the incus or malleus through the tail clip type clamping structure.

[0016] The beneficial effects of this utility model are: With a simple structure and a connecting mechanism, it can form a segmented rod structure together with the support rod. The rod structure can be bent at a certain angle according to the usage requirements. It is equipped with an installation mechanism with various installation end structures. The corresponding installation end structure can be selected according to the patient's middle ear condition to realize the reconstruction process of the ossicular chain. The artificial ossicle is installed and connected to the incus or malleus by means of fitting or clamping. The connection is stable and avoids the artificial ossicle from falling off. It can realize the rapid assembly of the artificial ossicle to the incus or malleus and the installation angle of the artificial ossicle can be adjusted, making it highly flexible in use. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of this utility model; Figure 2 This is a schematic diagram of the connection mechanism and support rod in Embodiment 1 of this utility model; Figure 3 This is a schematic diagram of the overall structure of Embodiment 2 of this utility model; Figure 4 This is a schematic diagram of the overall structure of Embodiment 3 of this utility model; Figure 5 This is a schematic diagram of the adjustment component and the mounting end in embodiment three of this utility model.

[0018] In the diagram: 1. Support rod; 2. Connecting end; 3. Connecting rod; 4. Mounting end; 5. Quick-release end block; 6. Guide end block; 7. Mounting base; 8. Adjusting ball; 9. Adjusting support rod. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings. Example 1: A prefabricated artificial ossicle structure includes a support rod 1, which is arranged between the stapes footplate and the incus or malleus. It also includes a connecting mechanism for forming a linear connection structure and an installation mechanism for forming a prefabricated mounting structure. The connecting mechanism is located at the end of the support rod 1 away from the stapes footplate, and the installation mechanism is located at the end of the connecting mechanism away from the support rod 1. A schematic diagram of the overall structure of Embodiment 1 of this utility model is shown below. Figure 1 As shown.

[0020] The connecting mechanism includes a connecting end 2 and a connecting rod 3. The connecting end 2 is located at the end of the support rod 1 away from the stapes base plate and is integrally formed with the support rod 1. The connecting rod 3 is located at the end of the connecting end 2 away from the support rod 1 and is integrally formed with the connecting end 2. The connecting mechanism, through the cooperation of the connecting end 2 and the connecting rod 3, forms a connecting structure on the support rod 1 to realize the installation connection between the support rod 1 and the installation mechanism. The connecting end 2 serves as a connecting structure at the end of the support rod 1 to realize the installation connection between the connecting rod 3 and the support rod 1. The connecting rod 3 is used to realize the installation connection between the installation mechanism and the support rod 1. A schematic diagram of the cooperation between the connecting mechanism and the support rod 1 in Embodiment 1 of this utility model is shown below. Figure 2 As shown.

[0021] The connecting end 2 is set as an arc-shaped end structure, and the connecting rod 3 and the support rod 1 are both set as cylindrical rod structures, with the diameter of the connecting rod 3 being smaller than the diameter of the support rod 1. The connecting rod 3, the connecting end 2, and the support rod 1 together form a segmented rod structure. The connecting mechanism of the artificial ossicle can be bent by 30° to flexibly cope with various situations in the middle ear.

[0022] The mounting mechanism includes a mounting end 4 and a quick-release end block 5. The mounting end 4 is located at the end of the connecting rod 3 away from the connecting end 2 and is integrally formed with the connecting rod 3. The mounting end 4 adopts a collar-type end structure. The quick-release end block 5 is located on one side of the mounting end 4 and is integrally formed with the mounting end 4. The mounting end 4 is a twisted collar structure with an opening on the side near the connecting rod 3. The quick-release end block 5 is arranged at the opening of the mounting end 4 and together with the mounting end 4 forms a twisted hook structure. The end of the artificial ossicle away from the stapes footplate is open to... The artificial ossicle is attached to the incus or malleus via a twisted hook structure. The installation mechanism, through the cooperation of the installation end 4 and the quick-release end block 5, forms a twisted hook structure to achieve the assembly connection between the artificial ossicle and the incus or malleus. The installation end 4 serves as the installation part, which facilitates attachment to the incus or malleus through its twisted collar structure. The quick-release end block 5 serves as a guide structure at the opening of the installation end 4, thus together with the installation end 4, forming a twisted hook structure to achieve the installation of the artificial ossicle and ensure the stability and assembly speed of the ossicle chain reconstruction process.

[0023] Example 2: Based on Embodiment 1, keeping the rest unchanged, the installation mechanism is replaced. The installation mechanism includes an installation end 4 and a guide end block 6. The installation end 4 is located at the end of the connecting rod 3 away from the connecting end 2 and is integrally formed with the connecting rod 3. The installation end 4 adopts a clamping end structure. The guide end block 6 is located on one side of the installation end 4 and is integrally formed with the installation end 4. The installation end 4 is set as an elephant trunk-type clamping structure with an opening on one side. The middle of the installation end 4 has a locking groove corresponding to the incus or malleus. The guide end block 6 is arranged at the opening of the installation end 4 and together with the installation end 4 forms a clamping clamp structure. The end of the ossicle furthest from the stapes footplate is clamped to the incus or malleus via a clamping clamp structure. The installation mechanism, through the cooperation of the installation end 4 and the guide end block 6, forms a clamping clamp structure to achieve the assembly connection between the artificial ossicle and the incus or malleus. The installation end 4 serves as the installation part, clamping the incus or malleus via its elephant trunk-like clamping structure and locking groove. The guide end block 6 serves as a guide structure at the opening of the installation end 4, thus together forming a clamping clamp structure to achieve the installation of the artificial ossicle, ensuring the stability and assembly speed of the ossicular chain reconstruction process. A schematic diagram of the overall structure of Embodiment 2 of this utility model is shown below. Figure 3 As shown.

[0024] Example 3: Based on Embodiment 1, keeping the rest unchanged, the installation mechanism is replaced. The installation mechanism includes a mounting base 7, an adjustment component, and a mounting end 4. The mounting base 7 is located at the end of the connecting rod 3 away from the connecting end 2 and is integrally formed with the connecting rod 3. The mounting base 7 is a frame-type support structure with an opening at the end away from the connecting rod 3. The adjustment component is assembled at the end of the mounting base 7 with the opening, and the mounting base 7 has a mounting through hole corresponding to the adjustment component. The mounting end 4 is located at the end of the adjustment component away from the mounting base 7. The mounting end 4 adopts a snap-fit ​​end structure, is a tail clip snap-fit ​​structure, and has an opening on one side. The middle of the mounting end 4 has a snap-fit ​​groove corresponding to the incus or malleus, and its opening is an arc-shaped guide structure. The end of the artificial ossicle furthest from the stapes footplate is connected to the incus or malleus via a tail-clamp type clamping structure. The installation mechanism, through the cooperation of the mounting base 7, the adjusting component, and the mounting end 4, forms a tail-clamp type clamping structure to achieve the assembly connection between the artificial ossicle and the incus or malleus. The mounting base 7 serves as a base structure on the connecting rod 3, thereby providing installation support for the adjusting component. The adjusting component provides installation support for the mounting end 4, allowing the mounting end 4 to be adjusted and assembled onto the mounting base 7. The mounting end 4 serves as the installation part, clamping itself to the incus or malleus via its tail-clamp type clamping structure and clamping groove, thus achieving the installation of the artificial ossicle and ensuring the stability and assembly speed of the ossicular chain reconstruction process. A schematic diagram of the overall structure of Embodiment 3 of this utility model is shown below. Figure 4 As shown.

[0025] The adjustment assembly includes an adjusting ball 8 and an adjusting rod 9. The adjusting ball 8 is located at the end of the mounting base 7 with an opening and is snapped into the mounting base 7 through a mounting through hole. The adjusting rod 9 is located on one side of the adjusting ball 8 and is integrally formed with the adjusting ball 8. The adjusting rod 9 is universally connected to the mounting base 7 through the adjusting ball 8. The mounting end 4 is located at the end of the adjusting rod 9 away from the adjusting ball 8 and is integrally formed with the adjusting rod 9. The adjustment assembly, through the cooperation of the adjusting ball 8 and the adjusting rod 9, provides mounting support for the mounting end 4 to adjustably assemble the mounting end 4 into the mounting base 7. On the mounting base 7, the adjusting ball 8 provides mounting support for the adjusting rod 9 and universally connects the adjusting rod 9 to the mounting base 7. The angle between the adjusting rod 9 and the mounting base 7 can be adjusted via the adjusting ball 8. The adjusting rod 9 provides mounting support for the mounting end 4 and, under the action of the adjusting ball 8, adjusts the angle between the mounting end 4 and the mounting base 7. The mounting angle of the mounting end 4 can be adjusted via the adjusting assembly to meet the needs of ossicular chain reconstruction under different conditions. A schematic diagram of the adjustment assembly and mounting end 4 in embodiment three of this utility model is shown below. Figure 5 As shown.

[0026] In this technical solution, the artificial ossicle is made of pure titanium.

[0027] Working principle: When ossicular chain reconstruction is required, the appropriate end structure of the artificial ossicle is selected based on the extent of middle ear damage. If the stapes is damaged but the incus or malleus handle is intact, a twisted hook structure artificial ossicle is selected. The end of the support rod 1 furthest from the connecting mechanism is placed on the stapes base plate, and the mounting end 4 of the twisted hook structure is attached to the incus or malleus handle. If the stapes is damaged and the incus or malleus handle is partially damaged, a clamp-type clamp structure artificial ossicle is selected. The support rod 1 furthest from the connecting mechanism is... One end is placed on the stapes base plate, and the mounting end 4 of the clamping clamp structure is clamped onto the incus process or malleus handle. If the stapes is damaged, the incus process or malleus handle is partially damaged, and the installation angle of the artificial ossicle needs to be adjusted significantly, the artificial ossicle with a tail clip is selected. The end of the support rod 1 away from the connecting mechanism is placed on the stapes base plate, and the mounting end 4 of the tail clip is clamped onto the incus process or malleus handle. The installation angle of the mounting end 4 can be adjusted according to actual needs.

[0028] The advantages of this utility model are its simple structure, the presence of a connecting mechanism that can form a segmented rod structure together with the support rod, and the ability to bend the rod structure at a certain angle according to usage requirements. It also features an installation mechanism with diverse installation end structures, allowing selection of the appropriate installation end structure based on the patient's middle ear condition to achieve the ossicular chain reconstruction process. The artificial ossicles are installed and connected to the incus or malleus via a kitting or clamping method, ensuring strong connection stability and preventing detachment of the artificial ossicles. This allows for rapid assembly between the artificial ossicles and the incus or malleus, and the installation angle of the artificial ossicles can be adjusted, providing high flexibility in use.

[0029] The above description details one embodiment of the present utility model, but it is merely a preferred embodiment and should not be construed as limiting the scope of the present utility model. All equivalent variations and improvements made within the scope of the present utility model application should still fall within the patent coverage of the present utility model.

Claims

1. A prefabricated artificial ossicle structure, comprising a support rod (1), said support rod (1) being arranged between the stapes footplate and the incus or malleus, characterized in that, It also includes a connecting mechanism for forming a linear connection structure and an installation mechanism for forming an assembled installation structure. The connecting mechanism is located at the end of the support rod (1) away from the stud base plate, and the installation mechanism is located at the end of the connecting mechanism away from the support rod (1).

2. The prefabricated artificial ossicle structure as described in claim 1, characterized in that, The connecting mechanism includes a connecting end (2) and a connecting rod (3). The connecting end (2) is located at the end of the support rod (1) away from the stapes base plate and is integrally formed with the support rod (1). The connecting rod (3) is located at the end of the connecting end (2) away from the support rod (1) and is integrally formed with the connecting end (2).

3. The prefabricated artificial ossicle structure as described in claim 2, characterized in that, The connecting end (2) is configured as an arc-shaped end structure, and the connecting rod (3) and the supporting rod (1) are both configured as cylindrical rod structures, and the diameter of the connecting rod (3) is smaller than the diameter of the supporting rod (1). The connecting rod (3), the connecting end (2) and the supporting rod (1) together constitute a segmented rod structure.

4. The prefabricated artificial ossicle structure as described in claim 3, characterized in that, The installation mechanism includes an installation end (4) and a quick-release end block (5). The installation end (4) is located at the end of the connecting rod (3) away from the connecting end (2) and is integrally formed with the connecting rod (3). The installation end (4) adopts a collar-type end structure. The quick-release end block (5) is located on one side of the installation end (4) and is integrally formed with the installation end (4).

5. The prefabricated artificial ossicle structure as described in claim 4, characterized in that, The mounting end (4) is configured as a twisted collar structure and has an opening on the side near the connecting rod (3). The quick-release end block (5) is arranged at the opening of the mounting end (4) and together with the mounting end (4) forms a twisted hook structure. The end of the artificial ossicle away from the stapes base plate is connected to the incus or malleus through the twisted hook structure.

6. The prefabricated artificial ossicle structure as described in claim 3, characterized in that, The installation mechanism includes an installation end (4) and a guide end block (6). The installation end (4) is located at the end of the connecting rod (3) away from the connecting end (2) and is integrally formed with the connecting rod (3). The installation end (4) adopts a clamping end structure. The guide end block (6) is located on one side of the installation end (4) and is integrally formed with the installation end (4).

7. The prefabricated artificial ossicle structure as described in claim 6, characterized in that, The mounting end (4) is configured as an elephant trunk clamping structure with an opening on one side. The middle part of the mounting end (4) is provided with a clamping groove corresponding to the incus or malleus. The guide end block (6) is arranged at the opening of the mounting end (4) and together with the mounting end (4) forms a clamping clamp structure. The end of the artificial ossicle away from the stapes base plate is clamped and connected to the incus or malleus through the clamping clamp structure.

8. The prefabricated artificial ossicle structure as described in claim 3, characterized in that, The mounting mechanism includes a mounting base (7), an adjustment component, and a mounting end (4). The mounting base (7) is located at the end of the connecting rod (3) away from the connecting end (2) and is integrally formed with the connecting rod (3). The mounting base (7) is configured as a frame-type bracket structure and has an opening at the end away from the connecting rod (3). The adjustment component is assembled at the end of the mounting base (7) with the opening, and the mounting base (7) has a mounting through hole corresponding to the adjustment component. The mounting end (4) is located at the end of the adjustment component away from the mounting base (7) and adopts a snap-fit ​​end structure.

9. A prefabricated artificial ossicle structure as described in claim 8, characterized in that, The adjustment assembly includes an adjustment ball (8) and an adjustment rod (9). The adjustment ball (8) is located at one end of the mounting base (7) with an opening and is snapped into the mounting base (7) through a mounting through hole. The adjustment rod (9) is located on one side of the adjustment ball (8) and is integrally formed with the adjustment ball (8). The adjustment rod (9) is universally connected to the mounting base (7) through the adjustment ball (8). The mounting end (4) is located at the end of the adjustment rod (9) away from the adjustment ball (8) and is integrally formed with the adjustment rod (9).

10. A prefabricated artificial ossicle structure as described in claim 9, characterized in that, The installation end (4) is configured as a tail clip type clamping structure and has an opening on one side. The middle part of the installation end (4) is provided with a clamping groove corresponding to the incus or malleus and its opening is configured as an arc-shaped guide structure. The end of the artificial ossicle away from the stapes base plate is clamped and connected to the incus or malleus through the tail clip type clamping structure.

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