An implant

Abstract

The application relates to an implant, relates to the tooth implant field, and comprises an implant part and a mucosa support assembly; wherein the implant part is used for penetrating through alveolar bone and fixedly connected with the alveolar bone; the mucosa support assembly comprises a middle connecting piece and a mucosa support piece; wherein the mucosa support piece is fixedly connected with the implant part through the middle connecting piece, and a surface of the mucosa support piece, which is away from the implant part, is used for contacting with a maxillary sinus bottom mucosa surface; a first space for blood entering to generate bone is constructed between the mucosa support piece and the implant part. The application has the effects of improving the osteogenesis effect of the implant and reducing the healing period by constructing the first space for osteogenesis between the maxillary sinus bottom mucosa and the alveolar bone through the implant.

Description

Technical Field

[0001] This application relates to the field of dental implants, and in particular to an implant. Background Technology

[0002] Currently, maxillary sinus lift surgery is also known as transalveolar ridge approach maxillary sinus floor mucosal lift surgery. Maxillary sinus lift surgery is one of the effective bone augmentation techniques to address insufficient vertical bone height when maxillary posterior teeth are missing.

[0003] The specific procedure for maxillary sinus lift is as follows: After routine preparation of the implant cavity, the maxillary sinus mucosa is lifted using methods such as bone chisel thrusting or hydraulic lifting. Bone grafts are then implanted between the maxillary sinus floor bone plate and the lifted sinus floor mucosa to support the raised sinus floor mucosa. Maxillary sinus lift maintains a relatively stable osteogenic space, allowing blood to organize and maximizing the osteogenic potential of the maxillary sinus mucosa and surrounding bone. This maximizes the formation of new bone within this space, effectively guiding bone regeneration and ensuring a high success rate for implant placement.

[0004] Existing bone powder is mainly divided into two categories. One is autologous bone, which is known as the "gold standard" and has the most ideal osteogenesis effect, but it requires opening a second surgical area in other parts of the body, resulting in low patient acceptance and limited bone harvesting volume. The other is synthetic bone, which is currently widely used, but it carries risks such as rejection by the human body, infection, and unsatisfactory osteogenesis effect.

[0005] Bone grafting surgery is inherently complex, technically sensitive, and its osteogenic cycle is longer than that of natural healing. Synthetic bone powder is typically a loose, granular structure with a diameter of 0.5-2 mm. It is relatively loose, with a rough surface and sharp points. When implanted into the maxillary sinus, it can easily puncture the thin sinus floor mucosa. Furthermore, the pressure from respiration can cause the bone powder to shift and be absorbed, thus affecting the stability of the local osteogenic space and reducing the effectiveness of bone formation. Summary of the Invention

[0006] This application provides an implant that creates a first space for osteogenesis between the maxillary sinus floor mucosa and alveolar bone, thereby improving osteogenesis and reducing the healing period.

[0007] This application provides an implant, including an implant portion and a mucosal support assembly; wherein the implant portion is used to penetrate and be fixedly connected to the alveolar bone; the mucosal support assembly includes a central connector and a mucosal support member; wherein the mucosal support member is fixedly connected to the implant portion through the central connector, and the surface of the mucosal support member facing away from the implant portion is used to contact the mucosal surface of the maxillary sinus floor; a first space is constructed between the mucosal support member and the implant portion for blood to enter and thereby generate bone.

[0008] Optionally, the maximum cross-section of the first space is greater than the first cross-section, which is the cross-section of the first hole opened on the alveolar bone for mounting the implant.

[0009] Optionally, the surface of the mucosal support away from the implant is a convex arc surface.

[0010] Optionally, the central connector includes a connecting handle and multiple mucosal support rods; wherein one end of the mucosal support rod is fixedly connected to the mucosal support member, and the other end is fixedly connected to the connecting handle; the connecting handle is fixedly connected to the implant portion.

[0011] Optionally, the mucosal support includes an inner mucosal support assembly and an outer mucosal support assembly, the outer mucosal support assembly being able to bend towards the inner side of the inner mucosal support assembly relative to the inner mucosal support assembly; the multiple mucosal bearing rods include a main mucosal bearing rod and multiple auxiliary mucosal bearing rods; wherein, one end of the main mucosal bearing rod is fixedly connected to the connecting handle, and the other end is fixedly connected to the inner mucosal support assembly; one end of the auxiliary mucosal bearing rod is hinged relative to the connecting handle, and the other end is hinged to the outer mucosal support assembly, and the auxiliary mucosal bearing rod is an elastic element.

[0012] Optionally, the mucosal support includes an inner mucosal support assembly and an outer mucosal support assembly, the outer mucosal support assembly being able to bend towards the inner side of the inner mucosal support assembly relative to the inner mucosal support assembly; the multiple mucosal bearing rods include a main mucosal bearing rod and multiple auxiliary mucosal bearing rods; wherein, one end of the main mucosal bearing rod is fixedly connected to the connecting handle, and the other end is fixedly connected to the inner mucosal support assembly; one end of the auxiliary mucosal bearing rod is hinged relative to the connecting handle, and the other end is hinged to the outer mucosal support assembly; the connecting handle includes a fixing rod and a connecting ring; wherein, the fixing rod is fixedly connected to the implant portion. The fixing rod is fixedly connected to the main mucosal support rod; the connecting ring is sleeved on the outside of the fixing rod and can slide relative to the fixing rod to a first position or a second position. The first position is the position of the connecting ring when the projection of the inner mucosal support component is located on the implant part, and the second position is the position of the connecting ring when the projection of the inner mucosal support component is located outside the implant part; a retention groove is provided at the end of the implant part facing the mucosal support component; it also includes an outer ring, which is located in the retention groove and can accommodate the fixing rod to pass through. The outer ring contacts the connecting ring to push the position of the connecting ring from the first position to the second position.

[0013] Optionally, it also includes a hook, the elastic hook being fixed to the bottom of the retaining groove; a clearance groove is provided at one end of the connecting handle that extends into the retaining groove, the clearance groove being able to accommodate the elastic hook extending in; a hook groove is provided on the connecting handle, the hook groove being located on the side wall of the clearance groove; when the connecting handle contacts the bottom wall of the retaining groove, the end of the elastic hook that is away from the bottom of the retaining groove is hooked and fixed to the hook groove.

[0014] Optionally, the mucosal support may be made of shape memory alloy.

[0015] Optionally, the maximum cross-section of the first space is less than or equal to the first cross-section, which is the cross-section of the first hole opened on the alveolar bone for mounting the implant.

[0016] Optionally, the mucosal support is provided with several ventilation holes.

[0017] In the above technical solution, by installing the mucosal support component between the maxillary sinus floor mucosa and the alveolar bone, and the middle connector supporting the mucosal support component, a first space is created between the mucosal support component and the implant for blood to enter and generate bone. By utilizing the body's own osteogenic mechanism, the patient can guide the bone regeneration process to be close to the natural regeneration process.

[0018] The use of implants in this application improves the safety and reliability of the maxillary sinus floor mucosa, maintains the relative stability of the local osteogenic space, eliminates the additional trauma, cost, infection risk and complicated surgical procedures associated with the use of bone powder, makes guided bone regeneration closer to the natural osteogenic process, improves the osteogenic effect and reduces the healing period.

[0019] As the implant moves within the first hole, relative sliding occurs between the fixation rod and the connecting ring due to the contact between the outer ring and the connecting ring. The connecting ring, through the auxiliary mucosal support rod, drives the lateral mucosal support assembly to gradually unfold until the connecting ring moves to the second position. The connecting ring, through the auxiliary mucosal support rod, drives the lateral mucosal support assembly to fully unfold, thereby enabling the mucosal support assembly to support the maxillary sinus floor mucosa in the fixation groove, forming a stable first space.

[0020] The connection between the connecting handle and the implant is achieved during the implant installation process, using the pressure of the maxillary sinus floor mucosa on the mucosal support to hook and connect the connecting handle.

[0021] The pressure of the maxillary sinus floor mucosa itself and the hook-and-loop connection between the hook and the connecting handle maintain a stable connection between the mucosal support assembly and the implant. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the implant portion and the mucosal support component in one embodiment, along with the maxillary sinus floor mucosa.

[0023] Figure 2 This is a schematic cross-sectional view of the connection between the central connector and the mucosal support, and the connection between the central connector and the implant portion in one embodiment.

[0024] 1. Implant portion; 11. Retention groove; 2. Mucosal support assembly; 3. Middle connector; 31. Connecting handle; 311. Clearance groove; 312. Hook groove; 313. Fixing rod; 314. Connecting ring; 32. Mucosal bearing rod; 321. Main mucosal bearing rod; 322. Auxiliary mucosal bearing rod; 4. Mucosal support component; 41. Medial mucosal support assembly; 42. Lateral mucosal support assembly; 5. Outer ring; 6. Hook; 7. First space; 8. Maxillary sinus floor mucosa; 91. Alveolar ridge; 92. Maxillary sinus floor bone plate; 93. First hole. Detailed Implementation

[0025] The present application will be further described in detail below with reference to the accompanying drawings and embodiments. Through these descriptions, the features and advantages of the present application will become clearer and more apparent.

[0026] The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments. Although various aspects of embodiments are shown in the accompanying drawings, the drawings are not necessarily drawn to scale unless specifically indicated otherwise.

[0027] Furthermore, the technical features involved in the different embodiments of this application described below can be combined with each other as long as they do not conflict with each other.

[0028] This application discloses an implant for installation in the alveolar bone of a dislodged tooth, suitable for cases where alveolar ridge atrophy, insufficient alveolar bone volume, and conventional implants cannot be directly installed in the oral cavity.

[0029] Implants, as a component of implant-supported dentures, form the foundation of the prosthesis. Implant-supported dentures consist of the implant itself, abutment, screws, and prosthesis. The implant is inserted into the bone tissue to replace the natural tooth root, providing retention, support, and force transmission. Implant materials should have good biocompatibility; materials include cobalt-based alloys, stainless steel, or titanium. Based on the relationship between the implant tip and the surrounding bone and mucosa, implants can be classified as bone-level implants and soft tissue-level implants.

[0030] The abutment is a structure that connects to the implant through the gum line. The lower end of the abutment is fixed to the upper end of the implant with screws, serving as the attachment structure for removable or fixed prostheses. The prosthesis is the part of the implant-supported denture that restores chewing and aesthetic functions, such as a single crown, a multi-crown, a fixed bridge, or a removable denture.

[0031] The implants in this embodiment are mainly suitable for maxillary posterior teeth, but can also be used for dentures in other locations as needed.

[0032] Reference Figure 1An implant includes an implant portion 1 and a mucosal support component 2, wherein the implant portion 1 is used to penetrate and be fixedly connected to the alveolar bone.

[0033] Specifically, Figure 1 The diagram illustrates a partial cross-sectional structure of the alveolar bone. For ease of description, a first direction is defined, which is the alignment direction of the alveolar bone and the maxillary sinus floor mucosa 8. Along the first direction, the end of the alveolar bone away from the maxillary sinus floor mucosa 8 is the alveolar ridge 91, and the end of the alveolar bone facing the maxillary sinus floor mucosa 8 is the maxillary sinus floor plate 92.

[0034] For the installation of the implant, a first hole 93 is made in the alveolar bone. The first hole 93 is set along the first direction and is a threaded hole. The first hole 93 is also called the implant cavity. The first hole 93 penetrates both ends of the alveolar bone along the first direction and connects the maxillary sinus floor mucosa 8 with the outside.

[0035] The implant part 1 is a cylindrical component with external threads on its side. One end of the implant part 1 has a hexagonal groove for mating and connecting with the abutment, and the bottom end of the hexagonal groove has a threaded hole for bolt connection. The implant part 1 achieves a detachable and fixed connection between the implant and the abutment through bolts. The implant is provided with different diameter and height specifications depending on the diameter and height of the first hole 93.

[0036] The implant portion 1 penetrates and is fixedly connected to the alveolar bone, indicating that the implant portion 1 and the alveolar bone are fixed by a threaded connection through the first hole 93. In the attached figure, the implant portion 1 is completely located within the first hole 93. Optionally, the end of the implant portion 1 facing the maxillary sinus floor mucosa 8 extends out of the first hole 93.

[0037] In this embodiment, when the implant portion 1 is installed in the first hole 93, the end away from the maxillary sinus floor mucosa 8 is flush with the alveolar ridge 91. In another embodiment, when the implant portion 1 is installed in the first hole 93, the end away from the maxillary sinus floor mucosa 8 protrudes from the alveolar ridge 91, and the portion of the implant portion 1 protruding from the alveolar ridge 91 is not provided with external threads.

[0038] The mucosal support assembly 2 includes a central connector 3 and a mucosal support member 4. The mucosal support member 4 is fixedly connected to the implant portion 1 via the central connector 3, and the surface of the mucosal support member 4 facing away from the implant portion 1 is used to contact the surface of the maxillary sinus floor mucosa 8. A first space 7 is constructed between the mucosal support member 4 and the implant portion 1 for blood to enter and thereby generate bone.

[0039] Specifically, the middle connector 3 connects the mucosal support 4 to the implant part 1. The end of the mucosal support 4 facing away from the implant part 1 contacts the maxillary sinus floor mucosa 8. The pressure generated by the maxillary sinus floor mucosa 8 on the mucosal support 4 is transmitted to the implant part 1 through the middle connector 3.

[0040] The middle connector 3 maintains the relative positional stability between the mucosal support 4 and the implant portion 1. The mucosal support 4 supports the maxillary sinus floor mucosa 8, and the middle connector 3 and the mucosal support 4 work together to maintain the gap between the maxillary sinus floor mucosa 8 and the implant portion 1.

[0041] A first space 7 is constructed between the mucosal support 4 and the implant portion 1. The first space 7 should be understood as the space created by the middle connector 3 and the mucosal support 4 supporting the maxillary sinus floor mucosa 8, or it can be understood as the space between the maxillary sinus floor mucosa 8 and the alveolar bone. The first space 7 is formed after the implant is installed in the alveolar bone. When the implant is not installed, the first space can be considered non-existent, or it can be understood as a gap that can exist between the mucosal support 4 and the implant portion 1. In this case, the first space 7 is not a closed space.

[0042] Since the implant 1 is connected to the alveolar bone through the first hole 93, the implant 1 seals the first hole 93, and blood will fill the first space 7 to form bone, utilizing the body's own bone formation mechanism to form bone in the first space 7.

[0043] Compared to the existing technology, which involves elevating the maxillary sinus floor mucosa 8, filling the space between the maxillary sinus floor mucosa 8 and the alveolar bone with bone powder, and then installing the implant, this method offers a more comprehensive approach.

[0044] This application creatively utilizes the body's own osteogenic mechanism to make the regeneration of guided bone in the human body approximate the natural regeneration process. This is achieved by installing the mucosal support component 2 between the maxillary sinus floor mucosa 8 and the alveolar bone during the implantation of the implant 1 and the alveolar bone installation, with the middle connector 3 supporting the mucosal support component 4. This creates a first space 7 between the mucosal support component 4 and the implant 1 for blood to enter and generate bone.

[0045] The use of implants in this application improves the safety and reliability of the maxillary sinus floor mucosa, maintains the relative stability of the local osteogenic space, eliminates the additional trauma, cost, infection risk and complicated surgical procedures associated with the use of bone powder, makes guided bone regeneration closer to the natural osteogenic process, improves the osteogenic effect and reduces the healing period.

[0046] Reference Figure 1 As an alternative, the maximum cross-section of the first space 7 is larger than the first cross-section, which is the cross-section of the first hole 93 opened on the alveolar bone for installing the implant part 1.

[0047] Specifically, the cross-section of the first space 7 is the section along the axis perpendicular to the first hole 93. The largest cross-section of the first space 7 is located at the end of the first space 7 facing the alveolar bone. The first section can be understood as the section of the opening of the first hole 93 facing the maxillary sinus floor mucosa 8.

[0048] The cross-section of the first space 7 is larger than the first section. After bone formation in the first space 7, the cross-section of the bone formation in the first space 7 is larger than the first section, which helps to improve the stability of the bone formation in the first space 7 between the maxillary sinus floor mucosa 8 and the alveolar bone.

[0049] In another embodiment, the maximum cross-section of the first space 7 is less than or equal to the first cross-section. The mucosal support 4 can pass through the first hole 93.

[0050] In use, the mucosal support 4 is passed through the first hole 93 to contact the maxillary sinus floor mucosa 8 and lift the maxillary sinus floor mucosa 8 so that the maxillary sinus floor mucosa 8 is separated from the alveolar bone to form the first space 7.

[0051] The mucosal support 4 and the middle connector 3 in this embodiment have simple structures, which facilitates the processing and shaping of the implant; however, since the amount of bone formed in the first space 7 is small, the bone formation of the first space 7 is only suitable for situations where the amount of bone to be supplemented is less than a certain range, or where the requirements for the bone formation stability of the first space 7 are low.

[0052] Reference Figure 1 As an alternative, the surface of the mucosal support 4 facing away from the implant part 1 is a convex arc surface.

[0053] Specifically, the mucosal support 4 is part of a spherical shell, similar to a bowl shape. The mucosal support 4 itself has a certain rigidity, and the central connector 3 can provide some support force to the mucosal support 4.

[0054] The curved surface of the mucosal support 4 enables the mucosal support 4 to maintain continuous and stable support with the maxillary sinus floor mucosa 8; the mucosal support 4 provides good support stability for the maxillary sinus floor mucosa 8, and the stress on the maxillary sinus floor mucosa 8 is relatively stable, which helps to reduce damage to the maxillary sinus floor mucosa 8. When the maxillary sinus floor mucosa 8 is subjected to external force, the maxillary sinus floor mucosa 8 can disperse and transmit the force to the mucosal support 4, which helps to maintain the stability of the first space 7.

[0055] Furthermore, the mucosal support 4 is a component with a constant thickness, and the surface of the mucosal support 4 facing away from the implant portion 1 is a convex arc surface. After osteogenesis in the first space 7, the osteogenic surface is relatively smooth and without sharp edges, which helps to generate osteogenesis with a smooth surface.

[0056] Reference Figure 1 As an optional solution, the central connector 3 includes a connecting handle 31 and multiple mucosal support rods 32. One end of each mucosal support rod 32 is fixedly connected to the mucosal support member 4, and the other end is fixedly connected to the connecting handle 31. The connecting handle 31 is fixedly connected to the implant portion 1.

[0057] Specifically, the central connector 3 includes a connecting handle 31 and multiple mucosal support rods 32, which are fixedly connected to the mucosal support 4 and the connecting handle 31. The number of mucosal support rods 32 is determined according to design requirements. The connection position between the mucosal support rods 32 and the mucosal support 4 can be arranged in an array along the circumference of the mucosal support 4, or arranged layer by layer from the middle to the outer periphery.

[0058] For example, the mucosal support rods 32 include seven, one of which is connected to the middle of the mucosal support member 4, and the other six are located outside the middle mucosal support rod 32 and are evenly distributed along the circumference of the mucosal support member 4. The distance from the connection point of the mucosal support rod 32 to the middle of the mucosal support member 4 is equal to three-quarters of the distance from the edge of the mucosal support member 4 to the middle of the mucosal support member 4.

[0059] Multiple mucosal support rods 32 are connected to a connecting handle 31, and the connecting handle 31 is fixedly connected to the implant part 1.

[0060] The middle connector 3 is fixedly connected to the implant part 1 via the connecting handle 31, which makes it easy to combine the middle connector 3 of different specifications with the implant part 1 for use in various application scenarios.

[0061] Using multiple mucosal support rods 32 connected to the mucosal support member 4 can further improve the structural stability between the mucosal support member 4 and the middle connector 3, which helps to maintain the stability of the support of the mucosal support member 4 on the maxillary sinus floor mucosa 8, maintain the stability of the first space 7, and promote osteogenesis within the first space 7.

[0062] The mucosal support 4 and the central connector 3 have various structural forms, including but not limited to form one, where the mucosal support 4 and the central connector 3 are rigidly connected, and the structure of the mucosal support 4 or the central connector 3 can undergo elastic deformation; form two, where the mucosal support 4 and the central connector 3 are movably connected, and the structure of the mucosal support 4 and the central connector 3 does not deform; and form three, where the mucosal support 4 uses a shape memory alloy material, so that the material can recover to the designed shape at body temperature. The following content provides an exemplary description of the three connection forms.

[0063] As an alternative, the mucosal support 4 includes an inner mucosal support component 41 and an outer mucosal support component 42, wherein the outer mucosal support component 42 can be bent toward the inner side of the inner mucosal support component 41 relative to the inner mucosal support component 41.

[0064] The plurality of mucosal support rods 32 include a main mucosal support rod 321 and a plurality of auxiliary mucosal support rods 322. The structural strength of the main mucosal support rod 321 is greater than that of the auxiliary mucosal support rods 322. One end of the main mucosal support rod 321 is fixedly connected to the connecting handle 31, and the other end is fixedly connected to the inner mucosal support assembly 41. One end of the auxiliary mucosal support rod 322 is hinged relative to the connecting handle 31, and the other end is hinged to the outer mucosal support assembly 42. The auxiliary mucosal support rod 322 is an elastic element.

[0065] Reference Figure 2 The mucosal support member 4 includes an inner mucosal support assembly 41 and an outer mucosal support assembly 42. The inner mucosal support assembly 41 is circular in projection along a first direction, and the outer mucosal support assembly 42 is an annular ring fitted around the outer side of the inner mucosal support assembly 41 in projection along the first direction. In another embodiment, the outer mucosal support assembly 42 includes a plurality of outer support blocks, and any two outer support blocks are spaced apart at opposite ends along the circumferential direction of the inner mucosal support assembly 41.

[0066] The outer mucosal support component 42 can be bent towards the inner side of the inner mucosal support component 41 relative to the inner mucosal support component 41. In this embodiment, the outer mucosal support component 42 and the inner mucosal support component 41 are hingedly connected, and a plurality of hinge shafts are provided at the connection between the outer mucosal support component 42 and the inner mucosal support component 41 at the connection point, evenly distributed along the circumference of the inner mucosal support component 41. In another embodiment, the thickness of the connection seam between the outer mucosal support component 42 and the inner mucosal support component 41 is less than the thickness of the mucosal support member 4, and the outer mucosal support component 42 and the inner mucosal support component 41 can be bent at the connection seam.

[0067] One end of the auxiliary mucosal support rod 322 is hinged to the connecting handle 31, and the other end is hinged to the outer mucosal support assembly 42. The auxiliary mucosal support rod 322 is an elastic element. The relationship between the auxiliary mucosal support rod 322 and the connecting handle 31 is not shown in the attached drawings.

[0068] During implant placement, the outer mucosal support component 42, which is bent inwards towards the inner side of the inner mucosal support component 41, is folded, allowing the mucosal support component 4 and the central connector 3 to pass through the first hole 93. Within the first hole 93, due to the constraint of the sidewall, the auxiliary mucosal support rod 322 remains in an elastic deformation state. After passing through the maxillary sinus floor plate 92, the auxiliary mucosal support rod 322 undergoes elastic deformation, supporting the outer mucosal support component 42. The outer mucosal support component 42 then bends outwards towards the outer side of the inner mucosal support component 41, contacting and pressing against the maxillary sinus floor mucosa 8. This achieves support of the maxillary sinus floor mucosa 8 by the mucosal support component 4, lifting the maxillary sinus floor mucosa 8 and forming the first space 7. At this time, the elastic force of the auxiliary mucosal support rod 322 balances the pressure of the outer mucosal support component 42 on the maxillary sinus floor mucosa 8.

[0069] Reference Figure 2 As an alternative, the mucosal support 4 includes an inner mucosal support component 41 and an outer mucosal support component 42, wherein the outer mucosal support component 42 can be bent toward the inner side of the inner mucosal support component 41 relative to the inner mucosal support component 41.

[0070] The plurality of mucosal support rods 32 include a main mucosal support rod 321 and a plurality of auxiliary mucosal support rods 322. One end of the main mucosal support rod 321 is fixedly connected to the connecting handle 31, and the other end is fixedly connected to the inner mucosal support assembly 41; one end of the auxiliary mucosal support rod 322 is hinged to the connecting handle 31, and the other end is hinged to the outer mucosal support assembly 42.

[0071] Specifically, the mucosal support member 4 includes an inner mucosal support assembly 41 and an outer mucosal support assembly 42. The inner mucosal support assembly 41 has a circular projection along the first direction, and the outer mucosal support assembly 42 has a ring-shaped projection along the first direction, which is fitted over the inner mucosal support assembly 41. In another embodiment, the outer mucosal support assembly 42 includes a plurality of outer support blocks, and any two outer support blocks are spaced apart along the circumferentially opposite ends of the inner mucosal support assembly 41.

[0072] The outer mucosal support component 42 can be bent towards the inner side of the inner mucosal support component 41 relative to the inner mucosal support component 41. In this embodiment, the outer mucosal support component 42 and the inner mucosal support component 41 are hingedly connected, and a plurality of hinge shafts are provided at the connection between the outer mucosal support component 42 and the inner mucosal support component 41 at the connection point, evenly distributed along the circumference of the inner mucosal support component 41. In another embodiment, the thickness of the connection seam between the outer mucosal support component 42 and the inner mucosal support component 41 is less than the thickness of the mucosal support member 4, and the outer mucosal support component 42 and the inner mucosal support component 41 can be bent at the connection seam.

[0073] The connecting handle 31 includes a fixing rod 313 and a connecting ring 314. The fixing rod 313 is fixedly connected to the implant part 1 and to the main mucosal support rod 321.

[0074] The connecting ring 314 is sleeved on the outside of the fixing rod 313 and can slide relative to the fixing rod 313 to a first position or a second position. The first position is the position of the connecting ring when the projection of the inner mucosal support component 41 is on the implant part 1, and the second position is the position of the connecting ring when the projection of the inner mucosal support component 41 is outside the implant part 1.

[0075] Specifically, the fixing rod 313 is fixedly connected to the inner mucosa support assembly 41 through the main mucosa bearing rod 321.

[0076] The connecting ring 314 is sleeved on the fixed rod 313 and slidably assembled on the outside of the fixed rod 313 along the first direction. Furthermore, limiting blocks are provided at both ends of the fixed rod 313, which restrict the connecting ring 314 to slide only on the fixed rod 313. The limiting blocks are not shown in the attached drawings.

[0077] One end of the auxiliary mucosal support rod 322 is hinged to the outer mucosal support assembly 42, and the other end is hinged to the connecting ring 314. When the connecting ring 314 slides on the fixed rod 313, the connecting ring 314 slides with one end of the auxiliary mucosal support rod 322, causing the included angle between the auxiliary mucosal support rod 322 and the main mucosal support rod 321 to deform, and the end of the auxiliary mucosal support rod 322 connected to the outer mucosal support assembly 42 moves synchronously.

[0078] When the connecting ring 314 is in the first position, the outer mucosal support assembly 42 is in a closed state relative to the inner mucosal support assembly 41, and the mucosal support member 4 and the middle connecting member 3 can pass through the first hole 93. When the connecting ring 314 is in the second position, the outer mucosal support assembly 42 is in an unfolded state relative to the inner mucosal support assembly 41, and the inner mucosal support assembly 41 cannot pass through the first hole 93.

[0079] The implant portion 1 has a retention groove 11 at the end facing the mucosal support component 2.

[0080] The implant also includes an outer ring 5, which is located in the retention groove 11. The outer ring 5 can accommodate the fixing rod 313 through which it passes. The outer ring 5 contacts the connecting ring 314 to push the position of the connecting ring 314 from a first position to a second position.

[0081] Specifically, the fixation groove 11 is a cylindrical groove coaxial with the implant portion 1, and the diameter of the fixation groove 11 is equal to the outer diameter of the connecting ring 314. The inner diameter of the outer ring 5 is equal to the inner diameter of the connecting ring 314, and the outer diameter of the outer ring 5 is equal to the outer diameter of the connecting ring 314.

[0082] The mucosal support 4, the middle connector 3, and the implant part 1 are arranged sequentially along the first direction and move towards the maxillary sinus floor mucosa 8 through the first hole 93. At this time, a part of the connecting handle 31 of the middle connector 3 is located in the first hole 93. As the implant moves, a part of the mucosal support 4 contacts the maxillary sinus floor mucosa 8. At this time, the mucosal support 4 applies pressure to the fixing rod 313 through the main mucosal bearing rod 321, causing the fixing rod 313 to move towards the bottom of the retention groove 11. The connecting ring 314 contacts the opposite end of the outer ring 5 along the first direction in the retention groove 11. The fixing rod 313 and the connecting ring 314 slide relative to each other. The movement of the connecting ring 314 drives the auxiliary mucosal bearing rod 322 to move, and the auxiliary mucosal bearing rod 322 drives the outer mucosal support assembly 42 to gradually unfold. When the connecting ring 314 moves to the second position, the connecting ring 314 drives the outer mucosal support assembly 42 to fully unfold through the auxiliary mucosal support rod 322, thereby achieving the support of the mucosal support member 4 on the maxillary sinus floor mucosa 8 of the fixation groove 11, forming the first space 7. At this time, the rigidity of the auxiliary mucosal support rod 322 itself balances the pressure of the outer mucosal support assembly 42 on the maxillary sinus floor mucosa 8.

[0083] As an optional option, the mucosal support 4 is made of shape memory alloy.

[0084] Specifically, the mucosal support 4 is processed and shaped in a body temperature environment, and a force is applied to the mucosal support 4 to cause it to deform so that it can pass through the first hole 93, thus forming the general shape of the mucosal support 4 before use.

[0085] The central connector 3 provides stable support for the mucosal support 1. For example, the central connector 3 is a rigid component. Optionally, the central connector 3 is made of shape memory alloy.

[0086] When installing the mucosal support 4, after the mucosal support 4 is passed through the first hole 93, the temperature of the mucosal support 4 rises, and the mucosal support 4 automatically deforms and comes into contact with the maxillary sinus floor mucosa 8 to form the first space 7.

[0087] The mucosal support component 4, made of shape memory alloy, has a simple structure and good biocompatibility.

[0088] The connection between the central connector 3 and the implant part 1 is explained as follows.

[0089] Reference Figure 2 As an optional solution, a hook 6 is also included, which is fixed to the bottom of the retaining groove 11.

[0090] The end of the connecting handle 31 that extends into the fixing groove is provided with a relief groove 311, which can accommodate the extension of the elastic hook 6. The connecting handle 31 is provided with a hook groove 312, which is located on the side wall of the relief groove 311.

[0091] When the connecting handle 31 contacts the bottom wall of the retaining groove 11, the end of the elastic hook 6 that is away from the bottom of the retaining groove 11 is hooked and fixed to the hook groove 312.

[0092] Specifically, the hook 6 is an L-shaped component. The hook 6 includes an integrally formed connecting part and a hooking part. One end of the connecting part is fixedly connected to the bottom of the retaining groove 11, and the other end is fixedly connected to the hooking part. The included angle between the hooking part and the connecting part is less than 90°, and the hooking part and the connecting part can undergo elastic deformation.

[0093] The clearance groove 311 is a cylindrical groove coaxial with the connecting handle 31, and is located at the end of the fixing rod 313 that extends into the fixing groove. When the hook 6 undergoes elastic deformation, the hook 6 can enter the clearance groove 311. The hook groove 312 is an annular groove provided on the side wall of the clearance groove 311.

[0094] When the hook 6 enters the clearance groove 311, the hook 6 undergoes elastic deformation, and the hooking part of the hook 6 contacts and presses against the side wall of the clearance groove 311. When the end of the fixing rod 313 contacts the bottom of the retaining groove 11, the hooking part of the hook 6 moves into the hooking groove 312, and the hook undergoes elastic deformation, so that the end of the hooking part away from the connecting part is located in the hooking groove 312, thereby realizing the fixed connection between the hook 6 and the connecting handle 31.

[0095] The connecting handle 31 is connected to the implant part 1 by hooking 6 and connecting handle 31 through the pressure of the maxillary sinus floor mucosa 8 on the mucosal support 4 during the implant installation process.

[0096] In another embodiment, the connecting handle 31 can be bonded and fixed to the implant portion 1.

[0097] In another embodiment, a threaded connection may be used between the connecting handle 31 and the implant portion 1.

[0098] As an optional feature, the mucosal support 4 is provided with several venting holes. Specifically, the venting holes penetrate the mucosal support 4, and multiple support holes are arranged in an array on the mucosal support 4. The venting holes are not shown in the attached drawings. The arrangement of the venting holes can reduce the impact of the mucosal support 4 on the maxillary sinus floor mucosa 8.

[0099] The terms "parallel" and "perpendicular" used in this application can mean not only perfectly parallel and perpendicular, but also have a certain margin of error; for example, if the angle between the two is greater than or equal to 0° and less than or equal to 5°, they are considered to be parallel; if the angle between the two is greater than or equal to 85° and less than or equal to 95°, they are considered to be perpendicular.

[0100] In the description of this application, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship in the working state of this application. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0101] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0102] The present application has been described above with reference to preferred embodiments; however, these embodiments are merely exemplary and illustrative. Various substitutions and modifications can be made to the present application based on these embodiments, all of which fall within the protection scope of the present application.

Claims

1. An implant, characterized in that Includes the implant portion (1) and the mucosal support assembly (2); wherein, The implant part (1) is used to penetrate the alveolar bone and be fixedly connected to the alveolar bone; The mucosal support assembly (2) includes a central connector (3) and a mucosal support component (4); wherein, The mucosal support (4) is fixedly connected to the implant part (1) through the middle connector (3), and the surface of the mucosal support (4) facing away from the implant part (1) is used to contact the surface of the maxillary sinus floor mucosa (8). A first space (7) is constructed between the mucosal support (4) and the implant (1) for blood to enter and thereby generate bone; The central connector (3) includes a connecting handle (31) and multiple mucosal bearing rods (32); wherein, One end of the mucosal support rod (32) is fixedly connected to the mucosal support member (4), and the other end is fixedly connected to the connecting handle (31); The connecting handle (31) is fixedly connected to the implant portion (1); the mucosal support member (4) includes an inner mucosal support assembly (41) and an outer mucosal support assembly (42), the outer mucosal support assembly (42) being able to bend relative to the inner mucosal support assembly (41) toward the inner side of the inner mucosal support assembly (41); the plurality of mucosal bearing rods (32) include a main mucosal bearing rod (321) and a plurality of auxiliary mucosal bearing rods (322); wherein, One end of the main mucosal support rod (321) is fixedly connected to the connecting handle (31), and the other end is fixedly connected to the inner mucosal support assembly (41); One end of the auxiliary mucosal support rod (322) is hinged to the connecting handle (31), and the other end is hinged to the outer mucosal support assembly (42).

2. Implant according to claim 1, characterized in that The maximum cross-section of the first space (7) is greater than the first cross-section, which is the cross-section of the first hole (93) opened on the alveolar bone for installing the implant part (1).

3. The implant of claim 1, wherein The surface of the mucosal support (4) facing away from the implant (1) is a convex arc surface.

4. The implant of claim 1, wherein The auxiliary mucosal support rod (322) is an elastic element.

5. The implant according to claim 1, characterized in that, The material of the mucosal support (4) is a shape memory alloy.

6. The implant according to claim 1, characterized in that, The maximum cross-section of the first space (7) is less than or equal to the first cross-section, which is the cross-section of the first hole (93) opened on the alveolar bone for installing the implant part (1).

7. The implant according to claim 1, characterized in that, The mucosal support (4) is provided with several air vents.

Images