Internal connection structure of implant and abutment

Abstract

The utility model provides an internal connection structure of an implant and an abutment. The internal connection structure comprises the implant, the abutment and a fastening screw, a first mounting hole is formed in the implant, and a second mounting hole is formed in the abutment; a first section, a second section and a third section are sequentially arranged in the first mounting hole from bottom to top; the first section of the first mounting hole is also provided with a first internal thread; a fourth section, a fifth section, a sixth section and a seventh section are sequentially arranged on the outer side of the base table from bottom to top; the fastening screw is arranged in the second mounting hole of the base table in a penetrating manner; a first external thread at the lower end of the fastening screw is connected with a first internal thread of the first implant section; the head of the fastening screw is used for limiting upward movement of the abutment, so that the abutment is fixed in the implant. According to the internal connection structure of the implant and the abutment, the connection stability and the anti-rotation performance are improved, the adaptability of the internal connection structure is enhanced, the internal connection structure is convenient to maintain, and a more reliable and convenient solution is provided for clinical application.

Description

Technical Field

[0001] This utility model relates to the field of dental implant design and manufacturing technology, specifically to an internal connection structure between an implant and an abutment. Background Technology

[0002] In the field of dental implant design and manufacturing, the connection stability between the implant and the abutment is crucial to the long-term performance of the implant system. Studies have shown that micro-gaps and micro-movements between the abutment and the implant can significantly affect the fatigue load-bearing capacity of the implant system, leading to problems such as fracture and failure after long-term use. These problems mainly stem from long-term occlusal load, which causes micro-movements at the connection between the implant and the abutment, thereby reducing the load-bearing capacity of the system.

[0003] The shortcomings of existing technology:

[0004] 1. Insufficient stability: Some existing connection designs may loosen after prolonged use, affecting the function of dental implants and patient comfort.

[0005] 2. Poor anti-rotation performance: Some connection structures lack effective anti-rotation mechanisms, which makes the base prone to rotation during fastening or use, affecting the repair effect.

[0006] 3. Inconvenient maintenance: Some connection structures are complex, and once a problem occurs, disassembly and replacement are difficult, which is not conducive to later maintenance and adjustment.

[0007] Therefore, existing technologies have shortcomings and need further improvement. Utility Model Content

[0008] In view of the problems existing in the prior art, this utility model provides an internal connection structure between the implant and the abutment.

[0009] To achieve the above objectives, the specific solution of this utility model is as follows:

[0010] This utility model provides an internal connection structure between an implant and an abutment, comprising:

[0011] Implant, abutment, fastening screws;

[0012] The implant has a first mounting hole, and the abutment has a second mounting hole that extends vertically through it. The fastening screw includes a shank, with a head at the upper end and a first external thread at the lower end.

[0013] The interior of the first mounting hole is provided with a first section, a second section, and a third section from bottom to top;

[0014] The first section of the first mounting hole is also provided with a first internal thread;

[0015] The outer side of the base is provided with a fourth section, a fifth section, a sixth section, and a seventh section from bottom to top;

[0016] The fourth and fifth segments at the lower end of the abutment are sequentially disposed in the second and third segments of the first mounting hole of the implant.

[0017] The fastening screw passes through the second mounting hole of the base;

[0018] The first external thread at the lower end of the fastening screw is connected to the first internal thread of the first segment of the implant.

[0019] The head of the fastening screw is used to restrict the upward movement of the abutment, thereby fixing the abutment in the implant.

[0020] Furthermore, the included angle formed by the left and right sides of the fifth segment of the base is less than 10 degrees.

[0021] Furthermore, the included angle of the third segment of the first mounting hole of the implant corresponds to the fifth segment of the abutment.

[0022] Furthermore, the second segment of the first mounting hole of the implant is shaped as an equilateral hexagon, an equilateral octagon, or a cone.

[0023] The shape of the outer side of the fourth segment at the lower end of the abutment corresponds to the shape of the second segment of the first mounting hole of the implant.

[0024] Furthermore, a second external thread is provided on the outer side of the implant.

[0025] Furthermore, the top of the fastening screw is provided with a wrench interface, which is an equilateral hexagon.

[0026] The technical solution of this utility model has the following beneficial effects:

[0027] 1. Improve connection stability:

[0028] By setting a multi-segment structure in the first mounting hole of the implant, and setting a first internal thread in the first segment to cooperate with the first external thread of the fastening screw, the abutment can be firmly fixed in the implant to prevent loosening.

[0029] The angle between the fifth segment of the abutment and the third segment of the first mounting hole of the implant is matched, further enhancing the stability of the connection.

[0030] 2. Enhanced anti-rotation properties:

[0031] The angle formed by the left and right sides of the fifth section of the base is less than 10 degrees. This design helps to reduce the tendency of the base to rotate during the fastening process.

[0032] The second segment of the first mounting hole of the implant and the fourth segment of the abutment adopt the same geometry (equilateral hexagon, equilateral octagon or conical), which effectively prevents the rotation of the abutment and improves the reliability of the connection.

[0033] 3. Improve adaptability:

[0034] The second section of the first mounting hole and the fourth section of the base can adopt different geometries to adapt to the specific conditions of different patients, thereby enhancing the versatility and flexibility of the connection structure.

[0035] 4. Simplified installation process:

[0036] The top of the fastening screw is equipped with an equilateral hexagonal wrench interface, which facilitates the use of tools for tightening operations, simplifies the installation process, and reduces the difficulty of the operation.

[0037] 5. Enhances biocompatibility and osseointegration:

[0038] The implant has a second external thread on its outer side, which helps the implant integrate better with the bone tissue, promotes osseointegration, and improves the long-term stability of the implant.

[0039] 6. Easy to maintain and adjust:

[0040] By optimizing the connection structure design, the connection between the abutment and the implant is made more stable, while also facilitating later disassembly and maintenance, reducing patient discomfort and the difficulty of operation for doctors. Attached Figure Description

[0041] Figure 1 This is a perspective view of the present invention;

[0042] Figure 2 This is an exploded view of this utility model;

[0043] Figure 3 This is a three-dimensional view of the implant of this utility model;

[0044] Figure 4 This is a cross-sectional view of the implant of this utility model;

[0045] Figure 5 This is a perspective view of the base of this utility model;

[0046] Figure 6 This is a cross-sectional view of the base of this utility model;

[0047] Figure 7 This is a perspective view of the fastening screw of this utility model.

[0048] In the picture:

[0049] 1. Implant; 2. Abutment; 3. Fastening screw; 4. First mounting hole; 5. Second mounting hole; 6. Stem; 7. Head; 8. First external thread; 9. First segment; 10. Second segment; 11. Third segment; 12. First internal thread; 13. Fourth segment; 14. Fifth segment; 15. Sixth segment; 16. Seventh segment; 17. Second external thread; 18. Wrench interface. Detailed Implementation

[0050] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0051] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0052] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0053] In the description of this embodiment, the terms "upper," "lower," "front," "rear," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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 utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0054] Combination Figures 1-7 As shown, this utility model provides an internal connection structure between an implant 1 and an abutment 2, including: an implant 1, an abutment 2, and fastening screws 3;

[0055] The implant 1 is provided with a first mounting hole 4, and the base 2 is provided with a second mounting hole 5 that runs vertically through the body; the fastening screw 3 includes a rod 6, the upper end of the rod 6 is provided with a head 7, and the lower end is also provided with a first external thread 8;

[0056] The first mounting hole 4 has a first section 9, a second section 10, and a third section 11 arranged sequentially from bottom to top inside;

[0057] The first section 9 of the first mounting hole 4 is also provided with a first internal thread 12;

[0058] The outer side of the base 2 is provided with the fourth segment 13, the fifth segment 14, the sixth segment 15, and the seventh segment 16 from bottom to top;

[0059] The fourth section 13 and the fifth section 14 at the lower end of the base 2 are sequentially arranged in the second section 10 and the third section 11 of the first mounting hole 4 of the implant 1;

[0060] The fastening screw 3 passes through the second mounting hole 5 of the base 2;

[0061] The first external thread 8 at the lower end of the fastening screw 3 is connected to the first internal thread 12 of the first section 9 of the implant 1.

[0062] The head 7 of the fastening screw 3 is used to restrict the upward movement of the abutment 2, thereby fixing the abutment 2 in the implant 1.

[0063] The angle formed by the left and right sides of the fifth segment 14 of the base 2 is less than 10 degrees.

[0064] The included angle of the third segment 11 of the first mounting hole 4 of the implant 1 corresponds to the fifth segment 14 of the abutment 2.

[0065] The second segment 10 of the first mounting hole 4 of the implant 1 is shaped as an equilateral hexagon, an equilateral octagon, or a cone.

[0066] The shape of the outer side of the fourth segment 13 at the lower end of the abutment 2 corresponds to the shape of the second segment 10 of the first mounting hole 4 of the implant 1.

[0067] The implant 1 is also provided with a second external thread 17 on its outer side.

[0068] The top of the fastening screw 3 is also provided with a wrench interface 18, which is an equilateral hexagon.

[0069] The principle of this utility model is as follows:

[0070] 1. Structural composition:

[0071] Implant 1: has a first mounting hole 4, which is divided into a first segment 9, a second segment 10 and a third segment 11 from bottom to top. The first segment 9 is provided with a first internal thread 12.

[0072] Base 2: It has a second mounting hole 5 that runs through the top and bottom. The outer side of the base 2 is divided into the fourth section 13, the fifth section 14, the sixth section 15 and the seventh section 16 from bottom to top.

[0073] Fastening screw 3: includes a rod 6, the upper end of the rod 6 is provided with a head 7, and the lower end is provided with a first external thread 8.

[0074] 2. Installation process:

[0075] Abutment 2 installation: The lower fourth segment 13 and fifth segment 14 of abutment 2 are sequentially inserted into the second segment 10 and third segment 11 of the first mounting hole 4 of implant 1. The outer shape of the fourth segment 13 of abutment 2 corresponds to the shape of the second segment 10 of the first mounting hole 4 of implant 1, ensuring that abutment 2 will not rotate during insertion.

[0076] Installation of fastening screw 3: The fastening screw 3 passes through the second mounting hole 5 of the abutment 2, and its lower end has a first external thread 8 that connects with the first internal thread 12 of the first section 9 of the first mounting hole 4 of the implant 1. By rotating the fastening screw 3, it is gradually tightened until the head 7 of the fastening screw 3 abuts against the top of the abutment 2, restricting the upward movement of the abutment 2, thereby firmly fixing the abutment 2 in the implant 1.

[0077] 3. Anti-rotation mechanism:

[0078] The fifth segment 14 of the abutment 2 is designed such that the included angle formed by the left and right sides of the fifth segment 14 of the abutment 2 is less than 10 degrees, which matches the included angle of the third segment 11 of the first mounting hole 4 of the implant 1, further enhancing the anti-rotation performance of the abutment 2.

[0079] The geometry of the second segment 10: The second segment 10 of the first mounting hole 4 of the implant 1 can be designed as an equilateral hexagon, an equilateral octagon or a cone, and the outer shape of the fourth segment 13 of the abutment 2 corresponds to this, to ensure that the abutment 2 remains stable during insertion and prevents rotation.

[0080] 4. Biocompatibility and osseointegration:

[0081] The second external thread 17 of implant 1: The second external thread 17 is provided on the outer side of implant 1, which helps implant 1 to better integrate with bone tissue, promotes osseointegration, and improves the long-term stability of implant 1.

[0082] 5. Easy to operate:

[0083] The wrench interface 18 of the fastening screw 3: The top of the fastening screw 3 is provided with an equilateral hexagonal wrench interface 18, which facilitates the use of tools for tightening operations, simplifies the installation steps, and reduces the difficulty of the operation.

[0084] In summary, this invention achieves a stable and reliable internal connection structure by optimizing the design of the implant 1, abutment 2, and fastening screw 3. This structure not only effectively prevents rotation of the abutment 2 and improves connection stability, but also possesses good biocompatibility and ease of operation, providing important technical support for dental implant technology.

[0085] The above description is only a preferred embodiment of the present utility model and does not limit the scope of the present utility model. All equivalent structural transformations made under the present utility model concept and based on the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the protection scope of the present utility model.

Claims

1. An internal connection structure between an implant and an abutment, characterized in that, include: Implant, abutment, fastening screws; The implant has a first mounting hole, and the abutment has a second mounting hole that extends vertically through it. The fastening screw includes a shank, with a head at the upper end and a first external thread at the lower end. The interior of the first mounting hole is provided with a first section, a second section, and a third section from bottom to top; The first section of the first mounting hole is also provided with a first internal thread; The outer side of the base is provided with a fourth section, a fifth section, a sixth section, and a seventh section from bottom to top; The fourth and fifth segments at the lower end of the abutment are sequentially disposed in the second and third segments of the first mounting hole of the implant. The fastening screw passes through the second mounting hole of the base; The first external thread at the lower end of the fastening screw is connected to the first internal thread of the first segment of the implant. The head of the fastening screw is used to restrict the upward movement of the abutment, thereby fixing the abutment in the implant.

2. The internal connection structure between the implant and the abutment according to claim 1, characterized in that, The included angle formed by the left and right sides of the fifth segment of the base is less than 10 degrees.

3. The internal connection structure between the implant and the abutment according to claim 2, characterized in that, The included angle of the third segment of the first mounting hole of the implant corresponds to the fifth segment of the abutment.

4. The internal connection structure between the implant and the abutment according to claim 1, characterized in that, The second section of the first mounting hole of the implant is shaped like an equilateral hexagon, an equilateral octagon, or a cone. The shape of the outer side of the fourth segment at the lower end of the abutment corresponds to the shape of the second segment of the first mounting hole of the implant.

5. The internal connection structure between the implant and the abutment according to claim 1, characterized in that, The implant also has a second external thread on its outer side.

6. The internal connection structure between the implant and the abutment according to claim 1, characterized in that, The top of the fastening screw is also provided with a wrench interface, which is an equilateral hexagon.

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