A 3D-printed multi-system implant screw kit

Abstract

This application discloses a 3D-printed multi-system implant screw removal kit, relating to the field of 3D printing. It includes an implantation block, a positioning block fixedly mounted on the upper surface of the implantation block, a threaded block fixedly mounted on the upper surface of the positioning block, and a denture insert fixedly mounted on the upper surface of the threaded block. A positioning insertion hole is formed at the axis of the positioning block, a spiral groove is formed inside the threaded block, and a fastening thread is provided on the circumferential sidewall of the spiral groove. A groove is formed on the upper surface of the denture insert. The positioning insertion hole, spiral groove, and groove are connected and coaxially arranged. This device is integrally formed using 3D printing technology. The integral structure improves the overall strength and stability of the kit, reduces assembly errors, ensures effective force transmission during screw removal, and reduces the risk of component breakage. Furthermore, the dimensions of each component are designed to cover various implant and screw specifications, offering strong adaptability and meeting the needs of multi-system implantation scenarios, reducing the frequency of tool replacement.

Description

Technical Field

[0001] This application relates to the field of 3D printing, and in particular to a 3D printed multi-system implantation screw kit. Background Technology

[0002] In the field of dental implantology, implant screws frequently break due to prolonged stress, corrosion, or improper handling, making screw removal a common clinical challenge. Currently used screw removal tools have significant limitations: most are designed for a single system, only compatible with specific brands or models of implants. However, clinical implant systems are diverse, requiring multiple sets of tools, which not only increases medical costs but also reduces operational efficiency.

[0003] The existing tool has structural design flaws: the multi-part splicing structure is prone to gaps, which leads to unstable force transmission and often causes the tool to slip or break during screw removal; in addition, the component size adaptation range is narrow, and for screws of different depths and diameters, it is often necessary to change tools multiple times, prolonging the operation time and increasing patient discomfort.

[0004] Furthermore, traditional tools lack a non-slip grip design. In the moist oral environment, insufficient friction between the hand and the tool can easily lead to operational errors, affecting not only the success rate of screw removal but also potentially damaging surrounding implants or soft tissue, increasing the risk of postoperative complications. Therefore, there is an urgent need for a screw removal kit that is compatible with multiple systems, structurally stable, and easy to use to solve these problems. Utility Model Content

[0005] The purpose of this invention is to provide a 3D printed multi-system implantation screw kit to solve the problems mentioned in the background art.

[0006] This utility model provides a 3D printed multi-system implantation screw extraction kit, including:

[0007] An implantation block is provided, a positioning block is fixedly installed on the upper surface of the implantation block, a threaded block is fixedly installed on the upper surface of the positioning block, a denture insert block is fixedly installed on the upper surface of the threaded block, a positioning insertion hole is provided at the axis of the positioning block, a spiral groove is provided inside the threaded block, a fastening thread is provided on the circumferential sidewall of the spiral groove, and a groove is provided on the upper surface of the denture insert block. The positioning insertion hole, the spiral groove, and the groove are connected and coaxially arranged.

[0008] Preferably, the implantation block, positioning block, threaded block, and denture insert block are integrally formed.

[0009] By adopting the above technical solutions, gap errors caused by the assembly of multiple parts can be avoided, the overall structural strength of the kit can be improved, the force on each part can be evenly distributed during the screw removal process, the risk of breakage caused by local stress concentration can be reduced, and the production process can be simplified and manufacturing costs can be reduced.

[0010] Preferably, the implantation block has a disc-shaped structure, the diameter of the implantation block is 3-5 mm, and the thickness of the implantation block is 0.5-2 mm.

[0011] By adopting the above technical solution, this size design can be adapted to the space around most dental implants. The disc-shaped structure can increase the contact area with the tissues around the implant, improve positioning stability, and the thinner thickness can reduce pressure on the surrounding soft tissues.

[0012] Preferably, the positioning block has a cylindrical structure, the diameter of the positioning block is 1.5-3.5mm, and the height of the positioning block is 2-4mm.

[0013] By adopting the above technical solution, the cylindrical structure facilitates precise docking with external tools, and the range of diameter and height adaptability can accommodate screw removal tools of different specifications, ensuring coaxiality during positioning and reducing operational deviations.

[0014] Preferably, the threaded block has an inverted frustum shape, the bottom diameter of the threaded block is 2-4mm, the top diameter of the threaded block is 3.5-5.5mm, and the height of the threaded block is 5-10mm.

[0015] By adopting the above technical solution, the inverted frustum-shaped structure can guide the screw to be unscrewed step by step, avoiding the screw getting stuck during the removal process. The diameter difference between the bottom and top surfaces can accommodate screws of different lengths, and the height range can meet the depth requirements of most implants.

[0016] Preferably, the denture insert has a cylindrical structure, the diameter of the denture insert is 10-15mm, and the height of the denture insert is 2-4mm.

[0017] By adopting the above technical solutions, the larger diameter makes it easier for operators to hold, the cylindrical structure conforms to ergonomic design, reduces hand fatigue during long-term operation, and the height design ensures a stable connection with external auxiliary equipment.

[0018] Preferably, the circumferential sidewalls of the groove are provided with an anti-slip layer.

[0019] By adopting the above technical solution, the anti-slip layer can increase the friction between the hand or tool and the groove, prevent slippage during operation, ensure that the applied force can be accurately transmitted to the screw, and improve the stability and controllability of the removal process.

[0020] In summary, this application includes at least one of the following beneficial technical effects:

[0021] 1. The one-piece molded structure improves the overall strength and stability of the kit, reduces assembly errors, ensures effective force transmission during screw removal, and reduces the risk of component breakage;

[0022] 2. The dimensions of each component are designed to cover a variety of implant and screw specifications, making it highly adaptable and able to meet the needs of multiple implantation scenarios, reducing the frequency of tool replacement;

[0023] 3. The design of the inverted frustum structure and anti-slip layer optimizes the ease of operation, reduces the difficulty of operation and the risk of slippage, and improves the efficiency and success rate of screw removal. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of a 3D-printed multi-system implantation screw-taking kit according to an embodiment of this application;

[0025] Figure 2 This is a cross-sectional view of the overall structure of the structural screw kit, which is the main embodiment of this application.

[0026] Figure 3 This is a top view illustrating the overall structure of the embodiment of this application;

[0027] Figure 4 This is a bottom view of the overall structure, which is the main feature of the embodiment of this application.

[0028] Reference numerals: 1. Implantation block; 2. Positioning block; 3. Threaded block; 4. Denture insert block; 5. Positioning socket; 6. Spiral groove; 7. Fastening thread; 8. Groove; 9. Anti-slip layer. Detailed Implementation

[0029] The following is in conjunction with the appendix Figure 1 - Figure 4 This application will be described in further detail.

[0030] This application discloses a 3D printed multi-system implantation screw kit.

[0031] Reference Figure 1 A 3D-printed multi-system implantation screw kit, comprising:

[0032] The implantation block 1 has a positioning block 2 fixedly mounted on its upper surface, a threaded block 3 fixedly mounted on its upper surface, and a denture insert block 4 fixedly mounted on its upper surface. The implantation block 1 is formed using 3D printing selective laser melting technology and uses titanium alloy powder as raw material. After sandblasting, the surface roughness Ra is controlled at 1.6-3.2μm, which can enhance the fit stability with the surrounding tissues of the implant and reduce the risk of soft tissue irritation. The positioning block 2 has a positioning insertion hole 5 at its axis. The inner wall of the positioning insertion hole 5 has a guide cone surface of 15°-20°. The inlet diameter is 0.2-0.3mm larger than the bottom diameter, which can guide external tools to be inserted quickly and accurately, reducing the alignment operation time. The threaded block 3 has a spiral groove 6, and the circumferential sidewall of the spiral groove 6 is provided with a fastening thread 7. The upper surface of the denture insert block 4 has a groove 8. The positioning insertion hole 5, the spiral groove 6, and the groove 8 are connected and coaxially arranged.

[0033] refer to Figures 2-4 The implantation block 1, positioning block 2, threaded block 3, and denture insert block 4 are integrally molded structures. By adopting the above technical solution, gap errors caused by the assembly of multiple parts can be avoided, the overall structural strength of the kit can be improved, the force on each part can be evenly distributed during screw removal, the risk of fracture caused by local stress concentration can be reduced, and the production process can be simplified and manufacturing costs can be reduced.

[0034] refer to Figure 2 The implantation block 1 has a disc-shaped structure with a diameter of 3-5 mm and a thickness of 0.5-2 mm. By adopting the above technical solution, this size design can be adapted to the space around most dental implants. The disc-shaped structure can increase the contact area with the surrounding tissues of the implant, improve positioning stability, and the thinner thickness can reduce pressure on the surrounding soft tissues.

[0035] refer to Figure 2 The positioning block 2 has a cylindrical structure with a diameter of 1.5-3.5mm and a height of 2-4mm. By adopting the above technical solution, the cylindrical structure facilitates precise docking with external tools, and the adaptable range of diameter and height allows for compatibility with screw removal tools of different specifications, ensuring coaxiality during positioning and reducing operational deviations.

[0036] refer to Figure 2 The threaded block 3 has an inverted frustum shape. The diameter of the bottom surface of the threaded block 3 is 2-4mm, the diameter of the top surface is 3.5-5.5mm, and the height is 5-10mm. By adopting the above technical solution, the inverted frustum shape can guide the screw to be unscrewed step by step, avoiding the screw getting stuck during removal. The difference in diameter between the bottom and top surfaces can accommodate screws of different lengths, and the height range can meet the depth requirements of most implants.

[0037] refer to Figure 3 The denture insert 4 has a cylindrical structure with a diameter of 10-15mm and a height of 2-4mm. By adopting the above technical solution, the larger diameter facilitates gripping by the operator, the cylindrical structure conforms to ergonomic design, reducing hand fatigue during prolonged operation, and the height design ensures a stable connection with external auxiliary instruments.

[0038] refer to Figure 3 The circumferential sidewall of the groove 8 is provided with an anti-slip layer 9. By adopting the above technical solution, the anti-slip layer 9 can increase the friction between the hand or tool and the groove 8, prevent slippage during operation, ensure that the applied force can be accurately transmitted to the screw, and improve the stability and controllability of the removal process.

[0039] The implementation principle of the 3D-printed multi-system implant screw removal kit using threaded blocks in this application embodiment is as follows: During use, the implantation block 1 serves as the basic positioning component, its disc-shaped structure conforming to the tissue surrounding the implant, achieving initial fixation through its dimensional adaptability; the cylindrical structure of the positioning block 2 connects with the external driving tool, and the positioning insertion hole 5 serves as the positioning insertion hole, ensuring the coaxiality of the tool and the kit and preventing deviation during operation; the inverted frustum-shaped structure of the threaded block 3 guides the screw into the spiral groove 6, and the fastening thread 7 on the inner side of the spiral groove 6 engages with the screw thread, gradually unscrewing the screw by rotating the kit; the slope design of the inverted frustum disperses the resistance during screw removal; the denture insert block 4 serves as the gripping and force-bearing component, allowing the operator to apply torque by gripping the denture insert block 4; the anti-slip layer 9 on the inner side of the groove 8 enhances grip stability and prevents slippage; because the implantation block 1, positioning block 2, threaded block 3, and denture insert block 4 are integrally molded, the overall force is uniform, avoiding force transmission loss caused by the assembly of multiple components, ensuring smooth screw removal.

[0040] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A 3D-printed multi-system implantation screw-picking kit, characterized in that: include: An implantation block (1) is provided. A positioning block (2) is fixedly installed on the upper surface of the implantation block (1). A threaded block (3) is fixedly installed on the upper surface of the positioning block (2). A denture insert block (4) is fixedly installed on the upper surface of the threaded block (3). A positioning insertion hole (5) is provided at the center of the positioning block (2). A spiral groove (6) is provided in the threaded block (3). A fastening thread (7) is provided on the circumferential sidewall of the spiral groove (6). A groove (8) is provided on the upper surface of the denture insert block (4). The positioning insertion hole (5), the spiral groove (6) and the groove (8) are connected and coaxially arranged.

2. The 3D printed multi-system implantation screw kit according to claim 1, characterized in that: The implantation block (1), positioning block (2), threaded block (3), and denture insert block (4) are integrally formed structures.

3. The 3D printed multi-system implantation screw kit according to claim 1, characterized in that: The implantation block (1) has a disc-shaped structure, the diameter of the implantation block (1) is 3-5mm, and the thickness of the implantation block (1) is 0.5-2mm.

4. The 3D printed multi-system implantation screw-taking kit according to claim 1, characterized in that: The positioning block (2) has a cylindrical structure, the diameter of the positioning block (2) is 1.5-3.5mm, and the height of the positioning block (2) is 2-4mm.

5. A 3D printed multi-system implantation screw-taking kit according to claim 1, characterized in that: The threaded block (3) has an inverted frustum structure. The bottom diameter of the threaded block (3) is 2-4 mm, the top diameter of the threaded block (3) is 3.5-5.5 mm, and the height of the threaded block (3) is 5-10 mm.

6. The 3D printed multi-system implantation screw kit according to claim 1, characterized in that: The denture insert (4) has a cylindrical structure, the diameter of the denture insert (4) is 10-15mm, and the height of the denture insert (4) is 2-4mm.

7. The 3D printed multi-system implantation screw-taking kit according to claim 1, characterized in that: The circumferential sidewall of the groove (8) is provided with an anti-slip layer (9).

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