Zygomatic implant and oral implant comprising same

By designing growth components and adjustment structures with hexagonal prism connections, the compatibility problem between transzygomatic implants and the anterolateral wall of the maxillary sinus was solved, achieving stable implant placement and mucosal protection.

CN223831219UActive Publication Date: 2026-01-27FIRST HOSPITAL AFFILIATED TO GENERAL HOSPITAL OF PLA
View PDF 1 Cites 0 Cited by

Patent Information

Application Number
CN202520023747.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-06
Publication Date
2026-01-27
Estimated Expiration
2035-01-06

AI Technical Summary

Technical Problem

Existing curved transzygomatic implants are difficult to adapt to the degree of anterolateral maxillary sinus wall depression in different patients, resulting in problems such as implant exposure, mucosal erosion, and inconvenience in operation.

Method used

A transzygomatic implant was designed with growth components connected by hexagonal prisms and multiple connecting screw grooves, allowing for adjustment of the implant's length and angle to ensure fit against the anterolateral wall of the maxillary sinus, and is fixed by connecting bolts to improve stability.

Benefits of technology

This approach achieves good fit between the implant and the anterolateral wall of the maxillary sinus, reduces the risk of mucosal erosion, and improves ease of operation and fixation stability.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223831219U_ABST
    Figure CN223831219U_ABST
Patent Text Reader

Abstract

The utility model discloses a zygomatic implant and an oral implant comprising the zygomatic implant, which comprise an implant head, a lengthening component arranged at one end of a connecting part, a first straight line section arranged at one end of the lengthening component, a radian section fixedly arranged at one end of the first straight line section, a second hexagonal driving groove arranged in the middle of one end of the connecting part, and a second hexagonal driving groove arranged in the middle of the other end of the connecting part. A second connecting screw groove is formed in the middle of the inner wall of the second hexagonal driving groove, and a second annular screw groove is formed in the side of one end of the connecting part. The connecting part connected through the hexagonal column is connected with the lengthening assembly, the first linear section is connected with the first hexagonal butt joint block and the circular butt joint ring, and the size of the first inner hexagonal bolt is matched with the inner diameter of the first connecting screw groove and the inner diameter of the second connecting screw groove, so that the whole implant can be adjusted by personnel; further, the implant is more fit with the front outer side wall of the maxillary sinus, the problems of erosion, perforation and the like of mucous membranes outside the implant and soft tissues under the mucous membranes are reduced, and the occurrence of postoperative reactions is reduced.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of zygomatic bone implant technology, specifically to a transzygomatic implant and an oral implant containing the transzygomatic implant. Background Technology

[0002] Transzygomatic implantation is a dental implant restoration method used when patients have severe maxillary bone loss or atrophy, are unwilling to undergo bone grafting or bone lifting surgeries, but still desire dental implant restoration. Transzygomatic implantation involves inserting a dental implant into the zygomatic bone. Utilizing this dense bone mass, 2-4 conventional dental implants are simultaneously inserted into the anterior teeth area to complete the restoration of the maxillary dentition.

[0003] In response to this, the invention patent with authorization announcement number CN112826618B discloses a curved percutaneous zygomatic implant structure. The implant structure consists of a head (1), a body (2), a root (3), and an angled abutment (4). The head (1) is a cylindrical design with a regular hexagonal countersunk hole (11) at the upper end to support the angled abutment (4) and the prosthesis. The body (2) consists of a first straight segment (21), a second straight segment (23), and an arc segment (22). After implantation, the arc segment (22) can fit against or partially embed into the concave anterior lateral wall (5) of the maxillary sinus. The root (3) is implanted in the zygomatic bone, providing strong retention and ensuring good stability of the percutaneous zygomatic implant. The implant structure provided by this invention is closer to the concave anterior lateral wall (5) of the maxillary sinus, so that the body (2) is away from the soft tissue outside the anterior lateral wall (5) of the maxillary sinus, avoiding the pressure on the soft tissue and reducing the incidence of the body being exposed outside the oral cavity.

[0004] However, the curved perforated zygomatic implant in the aforementioned patent application still has certain drawbacks in use. The curved perforated zygomatic implant is designed for patients with obvious depression of the anterolateral wall of the maxillary sinus or severe vertical and horizontal atrophy of the maxilla. However, the degree and area of ​​depression of the anterolateral wall of the maxillary sinus vary from patient to patient, making it difficult to adjust the implant. The implant is difficult to fit closely to the anterolateral wall of the maxillary sinus, and problems such as erosion and perforation of the mucosa and submucosal soft tissue outside the implant may still occur. At the same time, the curved part of the implant makes it easy for medical staff to encounter problems such as inconvenience in operation and insecure fixation of the implant when installing the implant at the zygomatic bone opening. Utility Model Content

[0005] In order to solve the above problems, the purpose of this utility model is to provide a transzygomatic implant and an oral implant containing the transzygomatic implant, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model proposes a transzygomatic implant, including an implant head, one end of which is fixedly provided with an implant transition portion;

[0007] One end of the implant transition section is fixedly provided with a hexagonal post, one end of the hexagonal post is fixedly provided with a connecting part, one end of the connecting part is provided with a growth component, one end of the growth component is provided with a first straight segment, one end of the first straight segment is fixedly provided with an arc segment, one end of the arc segment is fixedly provided with a second straight segment, one end of the second straight segment is provided with an angled abutment, a second hexagonal drive groove is opened in the middle of one end of the connecting part, a second connecting screw groove is opened in the middle of the inner wall of the second hexagonal drive groove, and a second annular screw groove is opened on the side of one end of the connecting part.

[0008] As a preferred technical solution of this utility model, the growth component includes multiple growth segments, each growth segment has a connecting stud fixedly provided at the middle of one end, and each growth segment has a connecting ring fixedly provided on one side of one end.

[0009] As a preferred embodiment of this utility model, a first hexagonal drive groove is provided in the middle of the other end of the growth segment, a first connecting screw groove is provided in the inner wall of the first hexagonal drive groove, the size of the connecting stud is adapted to the inner diameter of the first connecting screw groove and the inner diameter of the second connecting screw groove respectively, and a first annular screw groove is provided on the side of the other end of the growth segment.

[0010] As a preferred technical solution of this utility model, a first hexagonal mating block is fixedly provided in the middle of the other end of the first straight segment, and a circular mating ring is fixedly provided on the side of the other end of the first straight segment. A first internal hexagonal bolt is inserted into the first bolt hole opened in the first straight segment.

[0011] As a preferred technical solution of this utility model, the first through hole opened on the surface of the arc segment is connected to the first bolt insertion hole, the second through hole opened at one end of the first hexagonal mating block is connected to the first bolt insertion hole, and the size of the first internal hexagonal bolt is adapted to the inner diameter of the first connecting screw groove and the inner diameter of the second connecting screw groove respectively.

[0012] As a preferred technical solution of this utility model, a second hexagonal mating block is inserted into a hexagonal mating groove opened in the middle of one end of the second straight segment, and an angle base is fixedly provided at one end of the second hexagonal mating block, and a first threaded groove is opened at one end of the angle base.

[0013] As a preferred technical solution of this utility model, a second hexagonal socket is inserted into a second bolt hole on one side of the angle base, and a second threaded groove is provided on the inner wall of the hexagonal mating groove. The second hexagonal socket is threaded through the second hexagonal mating block and connected to the second threaded groove.

[0014] An oral implant for use with the aforementioned transzygomatic implant, comprising a jawbone connected to the transzygomatic implant.

[0015] Compared with the prior art, the present invention provides a transzygomatic implant and an oral implant including the transzygomatic implant, which has the following beneficial effects:

[0016] 1. The zygomatic implant and the oral implant containing the zygomatic implant are connected to an extension component via a hexagonal prism connection. The length of the extension component can be increased or decreased according to the patient's actual situation. The first straight segment is connected to a first hexagonal docking block and a circular docking ring. The size of the first internal hexagonal bolt is adapted to the inner diameter of the first connecting screw groove and the inner diameter of the second connecting screw groove, respectively. Personnel can adjust the entire implant to ensure that the implant fits better with the anterolateral wall of the maxillary sinus, reduce problems such as erosion and perforation of the mucosa and submucosal soft tissue outside the implant, and reduce the occurrence of postoperative reactions.

[0017] 2. The zygomatic implant and the oral implant containing the zygomatic implant are connected to an extension component via a hexagonal prism connection. The first straight segment is connected to a first hexagonal docking block and a circular docking ring. The second hexagonal drive groove of the connection component has a second connecting screw groove, and the connection component has a second annular screw groove. In the extension component, the extension segment is connected to a connecting stud and a connecting ring. The first hexagonal drive groove of the connecting stud has a first connecting screw groove. When using the implant, the operator can pre-connect the connection component to the extension component. After the connection component is installed and fixed, the first straight segment and the extension component are rotated and installed. This makes the operation more convenient and ensures that the implant is more firmly fixed. Attached Figure Description

[0018] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the connection structure of the implant transition section of this utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the growth component of this utility model;

[0022] Figure 4 This is a schematic diagram of the connection structure of the arc segment of this utility model.

[0023] In the diagram: 1. Implant head; 2. Implant transition section; 3. Hexagonal post; 4. Connecting section; 5. Growth assembly; 501. Growth segment; 502. Connecting stud; 503. Connecting ring; 504. First hexagonal drive groove; 505. First connecting screw groove; 506. First annular screw groove; 6. First straight segment; 7. Curved segment; 8. Second straight segment; 9. Angular abutment; 10. Second hexagonal drive groove; 11. Second connecting screw groove; 12. Second annular screw groove; 13. First threaded groove; 14. First hexagonal mating block; 15. Circular mating ring; 16. First internal hexagonal bolt; 17. Second hexagonal mating block; 18. Second internal hexagonal bolt. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] like Figures 1-4 As shown, an embodiment of this utility model proposes a transzygomatic implant, including an implant head 1, and an implant transition portion 2 fixedly provided at one end of the implant head 1;

[0026] A hexagonal post 3 is fixedly provided at one end of the implant transition section 2. A connecting section 4 is fixedly provided at one end of the hexagonal post 3. An extension component 5 is provided at one end of the connecting section 4. A first straight segment 6 is provided at one end of the extension component 5. An arc segment 7 is fixedly provided at one end of the first straight segment 6. A second straight segment 8 is fixedly provided at one end of the arc segment 7. An angled abutment 9 is provided at one end of the second straight segment 8. A second hexagonal drive groove 10 is provided in the middle of one end of the connecting section 4. A second connecting screw groove 11 is provided in the middle of the inner wall of the second hexagonal drive groove 10. A second annular screw groove is provided on the side of one end of the connecting section 4. 12. The growth component 5 includes multiple growth segments 501. A connecting stud 502 is fixedly provided at the middle of one end of each growth segment 501, and a connecting ring 503 is fixedly provided on the side of one end of each growth segment 501. A first hexagonal drive groove 504 is opened at the middle of the other end of the growth segment 501. A first connecting screw groove 505 is opened on the inner wall of the first hexagonal drive groove 504. The size of the connecting stud 502 is adapted to the inner diameter of the first connecting screw groove 505 and the inner diameter of the second connecting screw groove 11. A first annular screw groove 506 is opened on the side of the other end of the growth segment 501.

[0027] A first hexagonal mating block 14 is fixedly provided at the middle of the other end of the first straight segment 6, and a circular mating ring 15 is fixedly provided on the side of the other end of the first straight segment 6. A first internal hexagonal bolt 16 is inserted into the first bolt insertion hole opened in the first straight segment 6. A first through hole opened on the surface of the arc segment 7 is connected to the first bolt insertion hole. A second through hole opened at one end of the first hexagonal mating block 14 is connected to the first bolt insertion hole. The size of the first internal hexagonal bolt 16 is adapted to the inner diameter of the first connecting screw groove 505 and the inner diameter of the second connecting screw groove 11. A second hexagonal mating block 17 is inserted into the hexagonal mating groove opened at the middle of one end of the second straight segment 8. An angle base 9 is fixedly provided at one end of the second hexagonal mating block 17. A first threaded groove 13 is opened at one end of the angle base 9. A second internal hexagonal bolt 18 is inserted into the second bolt insertion hole opened on one side of the angle base 9. A second threaded groove is opened on the inner wall of the hexagonal mating groove. The second internal hexagonal bolt 18 passes through the second hexagonal mating block 17 and is threadedly connected to the second threaded groove.

[0028] An oral implant for use with the aforementioned transzygomatic implant, comprising a jawbone connected to the transzygomatic implant.

[0029] Working principle: When using this implant, the implant head 1 is fixedly connected to the implant transition part 2, hexagonal post 3, and connecting part 4. The appropriate length of the growth component 5 is selected based on the patient's maxillary sinus anterolateral wall depression. The first growth segment 501 is aligned with the connecting part 4. The connecting stud 502 and connecting ring 503 are respectively connected to the second connecting groove 11 and the second annular groove 12 opened in the connecting part 4. The hexagonal post 3 can be used to restrict the connecting part 4. A hexagonal wrench is used to actuate the first hexagonal drive groove 504, thereby completing the connection between the connecting stud 502 and the second connecting groove 11. The growth segment 501... Between 1, the connecting stud 502 is connected to the adjacent first connecting screw groove 505 to complete the adjustment of this part. After the patient's zygomatic bone is opened, this part can be installed first. Then, the first straight segment 6 is aligned with the growth component 5. When the first hexagonal docking block 14 is inserted into the first hexagonal drive groove 504 from different directions, the orientation of the arc segment 7 connected to the first straight segment 6 can be changed to ensure that it fits more closely with the anterior lateral wall of the maxillary sinus. The circular docking ring 15 is inserted into the first annular screw groove 506. Personnel can fix the first straight segment 6 with the first internal hexagonal bolt 16, and at the same time install the angle base 9 to facilitate its connection with the gum.

[0030] It should be noted that, in this document, terms such as "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A transzygomatic implant, comprising an implant head (1), wherein one end of the implant head (1) is fixedly provided with an implant transition portion (2), characterized in that: One end of the implant transition part (2) is fixedly provided with a hexagonal column (3), one end of the hexagonal column (3) is fixedly provided with a connecting part (4), one end of the connecting part (4) is provided with a growth component (5), one end of the growth component (5) is provided with a first straight segment (6), one end of the first straight segment (6) is fixedly provided with an arc segment (7), one end of the arc segment (7) is fixedly provided with a second straight segment (8), one end of the second straight segment (8) is provided with an angled base (9), a second hexagonal drive groove (10) is opened in the middle of one end of the connecting part (4), a second connecting screw groove (11) is opened in the middle of the inner wall of the second hexagonal drive groove (10), and a second annular screw groove (12) is opened on the side of one end of the connecting part (4).

2. The zygomatic implant according to claim 1, characterized in that: The growth component (5) includes multiple growth segments (501), each of which has a connecting stud (502) fixedly provided at the middle of one end, and a connecting ring (503) fixedly provided on the side of one end of each growth segment (501).

3. A transzygomatic implant according to claim 2, characterized in that: A first hexagonal drive groove (504) is provided in the middle of the other end of the growth segment (501). A first connecting screw groove (505) is provided on the inner wall of the first hexagonal drive groove (504). The size of the connecting stud (502) is adapted to the inner diameter of the first connecting screw groove (505) and the inner diameter of the second connecting screw groove (11). A first annular screw groove (506) is provided on the side of the other end of the growth segment (501).

4. A transzygomatic implant according to claim 3, characterized in that: A first hexagonal mating block (14) is fixedly provided at the middle of the other end of the first straight segment (6), and a circular mating ring (15) is fixedly provided on the side of the other end of the first straight segment (6). A first internal hexagonal bolt (16) is inserted into the first bolt hole opened in the first straight segment (6).

5. A transzygomatic implant according to claim 4, characterized in that: The first through hole on the surface of the arc segment (7) is connected to the first bolt insertion hole, and the second through hole on one end of the first hexagonal mating block (14) is connected to the first bolt insertion hole. The size of the first internal hexagonal bolt (16) is adapted to the inner diameter of the first connecting screw groove (505) and the inner diameter of the second connecting screw groove (11).

6. A transzygomatic implant according to claim 1, characterized in that: A second hexagonal mating block (17) is inserted into a hexagonal mating groove at the middle of one end of the second straight segment (8). An angle base (9) is fixedly provided at one end of the second hexagonal mating block (17), and a first threaded groove (13) is provided at one end of the angle base (9).

7. A transzygomatic implant according to claim 6, characterized in that: A second hexagonal bolt (18) is inserted into a second bolt hole on one side of the angle base (9). A second threaded groove is provided on the inner wall of the hexagonal mating groove. The second hexagonal bolt (18) passes through the second hexagonal mating block (17) and is threadedly connected to the second threaded groove.

8. A dental implant, characterized in that: Includes the transzygomatic implant as described in any one of claims 1-7, and further includes the dental alveolar bone connected to the transzygomatic implant.

Citation Information

Patent Citations

  • Curved zygomatic implant structure

    CN112826618B