Umbrella cap base station

By designing the umbrella cap abutment, using the cap table to resist the dental bone and the cap bib to hold the bone meal, the problem of difficulty in obtaining initial stability and good site maintenance during the immediate implant process is solved, and the implant success rate is improved.

CN223026174UActive Publication Date: 2025-06-27THE FIRST AFFILIATED HOSPITAL OF NAVAL MEDICAL UNIVERSITY OF CHINESE PEOPLES LIBERATION ARMY
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Patent Information

Application Number
CN202422083507.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-27
Publication Date
2025-06-27
Estimated Expiration
2034-08-27

AI Technical Summary

Technical Problem

During the immediate implant process, it is difficult for the implant to obtain initial stability and good implant site maintenance, especially at the maxillary sinus position, which can easily lead to the implant drop or enter the maxillary sinus cavity.

Method used

An umbrella cap abutment is designed, including a base column, a cap table and a cap circumference. The cap circumference increases stability against the dental socket bone, and the cap circumference forms an umbrella-like structure to cover the bone meal, enhancing the fixation of the implant.

Benefits of technology

Through the design of the umbrella cap abutment, the stability of the implant is increased, the implant falls are avoided, and the implant success rate is improved, especially in the case of insufficient local bone mass.

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    Figure CN223026174U_ABST
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Abstract

The utility model discloses an umbrella cap base station which comprises a base station body. The abutment body comprises a foundation pillar, a cap platform is arranged at the top of the foundation pillar, and a cap enclosure which is arranged along the edge of the cap platform and extends downwards is arranged on the cap platform. The utility model has the advantages that the fixing stability can be increased, and the planting success rate is improved.
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Description

Technical Field

[0001] The utility model relates to the field of oral implantation, in particular to an umbrella cap base. Background Art

[0002] Immediate implantation refers to the placement of an implant at the same time as tooth extraction. Its advantages are that it reduces the number of surgeries, shortens the time for tooth repair, and reduces early rapid bone resorption. Currently, when implanting a tooth, it is necessary to first plant an implant in the tooth socket, then put an implant base (also called a healing cap or healing screw) on the implant, and make an implant crown on the base. However, in actual clinical work, when the affected tooth is extracted, if the implant is implanted immediately, it is often difficult to obtain initial stability and good implant site maintenance when implanted at the same time because the diameter of the tooth socket after tooth extraction is larger than the implant, and the gingival tissue is defective. When implanted in the maxillary sinus, it is very likely to enter the maxillary sinus cavity or other positions.

[0003] To solve the above problems, in the prior art, after the implant is installed, a healing cap is installed on the implant, and the wider end of the healing cap is used to press against the socket bone to prevent the implant from falling. However, the implant needs to be implanted into the socket bone to a sufficient depth to obtain initial stability and an ideal long-term repair effect. Due to alveolar ridge absorption after tooth loss and the extraction socket diameter being larger than the implant, local bone volume may be insufficient and dental implants cannot be implanted. The existing healing cap cannot solve the problem of local bone volume deficiency. The traditional solution is to implant bone regeneration materials such as bone powder through maxillary sinus lift surgery, but wound dehiscence often occurs, resulting in leakage and loss of bone powder implanted around the top of the implant, leading to implant failure.

[0004] How to solve the above problems has become a technical problem that needs to be solved urgently. Utility Model Content

[0005] The utility model aims to provide an umbrella cap base which can increase the stability of fixation and improve the success rate of implantation.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] The utility model provides an umbrella cap base, which comprises a base body; the base body comprises a base column, a cap base is arranged on the top of the base column, and a cap circumference extending downwards and arranged along the edge of the cap base is arranged on the cap base.

[0008] Furthermore, the base column includes a column body and a neck platform, and the column body, neck platform and cap platform are connected in sequence from bottom to top.

[0009] Furthermore, the base body is also provided with a through groove, and the through groove passes through the column, the neck platform and the cap platform in sequence from bottom to top.

[0010] Furthermore, the through groove includes an upper through hole and a lower through hole, the inner diameter of the upper through hole is larger than the inner diameter of the lower through hole, and the upper through hole and the lower through hole are respectively opened on the cap platform and the column, and the upper through hole and the lower through hole are connected through a reducing hole.

[0011] Furthermore, the cap platform is an elliptical structure, the column, the upper through hole, and the lower through hole are all cylindrical structures, and the neck platform and the reducing hole are all truncated cone structures.

[0012] Furthermore, a slope is provided on the edge of the cap platform, and the angle of the slope is 30° to 60°.

[0013] Furthermore, the angle of the slope is 45°.

[0014] Furthermore, the maximum major axis length of the cap platform is 10.7 mm, the maximum minor axis length of the cap platform is 7.7 mm, and the thickness of the cap platform is 1.3 mm, the height of the cap circumference is 0.4 mm, the height of the neck platform is 0.6 mm, and the maximum diameter of the neck platform is 3.8 mm, the height of the base column is 2.06 mm, and the diameter of the base column is 2.4 mm, the inner diameter of the upper through hole is 2.6 mm, and the inner diameter of the lower through hole is 1.9 mm.

[0015] Furthermore, the base column, the cap platform, and the cap circumference are an integrally formed structure, and the base column, the cap platform, the cap circumference, and the through groove are coaxial.

[0016] Furthermore, the edges of the base column away from one end of the cap platform and the cap circumference away from one end of the cap platform are both provided with rounded corners, and the radius of the rounded corners is 0.15 mm.

[0017] Due to the adoption of the above structure, the utility model has the following beneficial effects:

[0018] The utility model provides a cap platform, which can be used to support the tooth socket bone during the implantation process, thereby increasing the stability of the implant and preventing the implant from falling. A cap circumference is provided on the cap platform to form an umbrella-shaped or cap-shaped structure, which can hold part of the bone powder and achieve the purpose of vertical bone increment at the top of the implant. It can also protect the implant connected below and avoid exposure of the implant due to bone and soft tissue defects such as gums, especially when using bone-level implants, thereby improving the success rate of implantation.

[0019] The present invention will become more clear through the following description in conjunction with the accompanying drawings, which are used to explain the embodiments of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0021] Figure 1 Schematic diagram of the overall structure of the present invention;

[0022] Figure 2 Front view of the present invention;

[0023] Figure 3 Half-sectional view of the present invention. Specific embodiments

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0025] Please refer to Figures 1 to 3 , the umbrella cap base provided by the present invention includes a base body; the base body includes a base column 1 for connecting the implant; the top of the base column 1 is provided with a cap table 2 for abutting against the alveolar bone to increase the stability of the implant and prevent the implant from falling; a cap circumference 3 extending downward along its edge is provided on the cap table 2, thus forming an umbrella-shaped or cap-shaped structure, which can hold part of the bone powder, achieve the purpose of vertical bone augmentation at the top of the implant, and can also protect the implant connected below to avoid the exposure of the implant due to the defect of bone soft tissues such as the gingiva. Especially when using bone-level implants, the success rate of implantation is improved.

[0026] In the present invention, the base column 1 includes a column body 11 and a neck table 12, and the column body 11, the neck table 12, and the cap table 2 are connected in sequence from bottom to top. The neck table 12 can improve the firmness of the connection between the base column 1 and the cap table 2, and at the same time facilitate disassembly and installation.

[0027] In the present invention, the base body of the base also offers a through slot 4, and the through slot 4 sequentially penetrates through the column body 11, the neck table 12, and the cap table 2 from bottom to top. The lower end of the covering screw can pass through the through slot 4 and penetrate into the implant hole, so that the base body of the base is locked and fixed on the implant.

[0028] In the present utility model, the through groove 4 includes an upper through hole 41 and a lower through hole 42. The inner diameter of the upper through hole 41 is larger than that of the lower through hole 42, so that the lower end of the covering screw can pass through the base body, and at the same time, the head end of the covering screw is restricted within the upper through hole 41, preventing the covering screw from falling out of the through groove 4 from top to bottom. Furthermore, the implant and the base body can be connected through the covering screw. In addition, the upper through hole 41 and the lower through hole 42 are respectively formed in the cap platform 2 and the column body 11, and the upper through hole 41 and the lower through hole 42 are communicated through a reduced-diameter hole 43. The inner diameters at both ends of the reduced-diameter hole 43 are respectively equal to the inner diameters of the upper through hole 41 and the lower through hole 42.

[0029] In the present utility model, the cap platform 2 is of an oval structure, the column body 11, the upper through hole 41, and the lower through hole 42 are all of a cylindrical structure, and the neck platform 12 and the reduced-diameter hole 43 are both of a frustum of a cone structure, which can improve the firmness of the connection and facilitate disassembly and installation at the same time.

[0030] In the present utility model, a slope surface 5 is provided at the edge of the cap platform 2, and the angle of the slope surface 5 is 30° to 60°.

[0031] In the present utility model, the angle of the slope surface 5 is 45°.

[0032] In the present utility model, the maximum major axis length of the cap platform 2 is 10.7 mm, the maximum minor axis length of the cap platform 2 is 7.7 mm, and the thickness of the cap platform 2 is 1.3 mm. The height of the cap circumference 3 is 0.4 mm. The height of the neck platform 12 is 0.6 mm and the maximum diameter of the neck platform 12 is 3.8 mm. The height of the base post 1 is 2.06 mm and the diameter of the base post 1 is 2.4 mm. The inner diameter of the upper through hole 41 is 2.6 mm, and the inner diameter of the lower through hole 42 is 1.9 mm.

[0033] In the present utility model, the base post 1, the cap platform 2, and the cap circumference 3 are of an integrally formed structure, and the base post 1, the cap platform 2, the cap circumference 3, and the through groove 4 are coaxial.

[0034] In the present utility model, chamfered corners are provided at the edges of the end of the base post 1 away from the cap platform 2 and the end of the cap circumference 3 away from the cap platform 2, and the radius of the chamfered corners is 0.15 mm. The chamfered corners can reduce the friction of the edges of the base post 1 and the cap circumference 3 against the oral soft tissues and improve the comfort during use.

[0035] When the present utility model is in use, the operator prepares the standard implant socket according to the model of the implant to be implanted. For patients with insufficient local bone mass, after completing maxillary sinus elevation and bone grafting and preparing the implant socket, the implant is implanted into the implant socket. When the implant is 2.0 mm above the bone plane, the base body is manually locked onto the implant using a covering screw, and force is slowly applied until the bottom surface of the cap 2 completely covers the bone wall around the implant socket. If the resistance is too large during the operation, a hollow percussion instrument can be sleeved on the screw part, and the top of the cap 2 can be slowly and gently tapped until the edge of the cap 2 is stuck on the bone plate around the implant socket, which can prevent the implant from falling into the maxillary sinus. The implant can also obtain a stable position, and can hold the bone powder around the top of the implant, effectively preventing the overflow and loss of bone powder, achieving the purpose of vertical bone augmentation at the top of the implant, meeting the technical requirement that the top of most bone-level implants needs to be 0.5 mm below the bone margin, and can also protect the underlying connected implant, avoiding the exposure of the implant caused by defects in bone soft tissues such as the gingiva. Especially when using bone-level implants, the success chance of implantation is increased.

[0036] The preferred embodiments of the present utility model have been described above. It should be understood that the present utility model is not limited to the above specific embodiments, and the equipment and structures not described in detail should be understood to be implemented in a common manner in the art; any person skilled in the art can make many possible changes and modifications to the technical solution of the present utility model, or modify it into an equivalent embodiment with equivalent changes, without departing from the scope of the technical solution of the present utility model, which does not affect the essence of the present utility model. Therefore, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present utility model without departing from the content of the technical solution of the present utility model still fall within the scope of protection of the technical solution of the present utility model.

Claims

1. An umbrella cap base, comprising a base body; characterized in that: The base body comprises a base column (1), a cap platform (2) is arranged on the top of the base column (1), and a cap circumference (3) extending downwards and arranged along the edge of the cap platform (2) is arranged on the cap platform (2).

2. The umbrella cap base according to claim 1, characterized in that: The base column (1) comprises a column body (11) and a neck platform (12), and the column body (11), the neck platform (12) and the cap platform (2) are connected in sequence from bottom to top.

3. The umbrella cap base according to claim 2, characterized in that: The base body is also provided with a through slot (4), and the through slot (4) passes through the column (11), the neck platform (12), and the cap platform (2) in sequence from bottom to top.

4. The umbrella cap base according to claim 3, characterized in that: The through groove (4) comprises an upper through hole (41) and a lower through hole (42); the inner diameter of the upper through hole (41) is larger than the inner diameter of the lower through hole (42); and the upper through hole (41) and the lower through hole (42) are respectively formed on the cap platform (2) and the column (11); the upper through hole (41) and the lower through hole (42) are connected via a diameter-changing hole (43).

5. The umbrella cap base according to claim 4, characterized in that: The cap platform (2) is an elliptical structure, the column (11), the upper through hole (41), and the lower through hole (42) are all cylindrical structures, and the neck platform (12) and the variable diameter hole (43) are all truncated cone structures.

6. The umbrella cap base according to claim 5, characterized in that: The edge of the cap platform (2) is provided with a slope (5), and the angle of the slope (5) is 30° to 60°.

7. The umbrella cap base according to claim 6, characterized in that: The angle of the slope (5) is 45°.

8. The umbrella cap base according to claim 6 or 7, characterized in that: The maximum major axis length of the cap platform (2) is 10.7 mm, the maximum minor axis length of the cap platform (2) is 7.7 mm, and the thickness of the cap platform (2) is 1.3 mm. The height of the cap circumference (3) is 0.4 mm. The height of the neck platform (12) is 0.6 mm, and the maximum diameter of the neck platform (12) is 3.8 mm. The height of the base column (1) is 2.06 mm, and the diameter of the base column (1) is 2.4 mm. The inner diameter of the upper through hole (41) is 2.6 mm, and the inner diameter of the lower through hole (42) is 1.9 mm.

9. The umbrella cap base according to any one of claims 1 to 7, characterized in that: The base column (1), the cap platform (2), and the cap circumference (3) are an integrally formed structure, and the base column (1), the cap platform (2), the cap circumference (3), and the through groove (4) are coaxial.

10. The umbrella cap base according to any one of claims 1 to 7, characterized in that: The edges of the base column (1) at one end away from the cap platform (2) and the edges of the cap circumference (3) at one end away from the cap platform (2) are both provided with rounded corners, and the radius of the rounded corners is 0.15 mm.