3D printing fixing module for high-precision implant installation

Abstract

The utility model discloses a 3D printing fixing module for mounting a high-precision implant, which comprises a cylindrical fixing seat, a nut is mounted in the fixing seat, and a wedge-shaped clamping groove is circumferentially formed in the inner wall of the fixing seat; one end of the clamping groove communicates with a sliding groove located in the inner wall of the fixing base, and the end, corresponding to the bottom face of the fixing base, of the sliding groove is open. The bottom face of the clamping groove is a plane, and the top face of the clamping groove is an inclined face. A wedge-shaped clamping block is arranged on the outer wall of the nut, and the bottom face of the clamping block is a plane. Threads are arranged on the inner wall of the nut, the clamping block can slide to the position of the clamping groove in the sliding groove and is clamped into the clamping groove in a rotating mode to be clamped, and the rotating clamping direction of the clamping block and the clamping groove is consistent with the screwing direction of the implant and the nut. The utility model not only can improve the installation precision of the implant and ensure the accuracy of subsequent scanning, but also has the advantages of convenience in use and high installation efficiency.

Description

Technical Field

[0001] This utility model relates to a 3D-printed fixing device for implant installation, and in particular a high-precision 3D-printed fixing module for implant installation. Background Technology

[0002] With the continuous development of dental implant restoration technology, especially the increasingly widespread application of 3D printing technology, 3D printed models are playing an increasingly important role in the implant restoration process. 3D printed models can accurately reproduce the patient's oral structure, helping dentists to accurately pre-assess and adjust the installation of various components such as implants, abutments, and crowns before surgery, thereby ensuring optimal fit and functional results in actual operation. Currently, 3D printed model substitute structures are commonly used to check the fit between various implant components, ensuring the implant's installation accuracy and correct position. For example, Chinese utility model patent ZL202321119617.6 discloses a 3D printed model substitute structure, which mainly uses a printed model, abutment, positioning body, and positioning nut to install the implant. The axial height is positioned by the limiting effect of the nut's top surface against the abutment, and the two side planes of the nut prevent circumferential rotation after installation, thus achieving the positioning function of the implant. However, due to the less-than-ideal printing accuracy of 3D printing technology when printing on suspended surfaces, the axial positioning accuracy of the nut and abutment in the aforementioned patented solution is not ideal. This results in an inability to accurately control the implant's position, affecting the fit between the implant, abutment, and crown, and making it difficult to guarantee the accuracy of subsequent scanning. Therefore, existing 3D-printed models for implant installation suffer from the problem of unsatisfactory implant installation accuracy. Utility Model Content

[0003] The purpose of this invention is to provide a 3D-printed fixing module for high-precision implant installation, which can improve the installation accuracy of implants and ensure the accuracy of subsequent scanning.

[0004] The technical solution of this utility model is as follows: A 3D-printed fixing module for high-precision implant installation includes a cylindrical fixing base, a nut installed inside the fixing base, and a circumferentially arranged wedge-shaped groove on the inner wall of the fixing base; one end of the groove is connected to a sliding groove located on the inner wall of the fixing base, and the end of the sliding groove corresponding to the bottom surface of the fixing base is open; the bottom surface of the groove is flat, and the top surface of the groove is inclined; a wedge-shaped locking block is provided on the outer wall of the nut, and the bottom surface of the locking block is flat; the inner wall of the nut is threaded, and the locking block can slide in the sliding groove to the position of the groove and rotate to lock into the groove until it is locked, and the rotation and locking direction of the locking block and the groove is consistent with the tightening direction of the implant and the nut threads.

[0005] In the aforementioned high-precision implant installation 3D printed fixing module, the nut is a metal nut, which can ensure the stability of the threaded connection between the nut's internal thread and the implant's thread.

[0006] In the aforementioned high-precision implant installation 3D printed fixing module, when the nut and the fixing seat are connected, the two are interference fit; this ensures that there will be no radial offset between the nut and the fixing seat, thereby improving the installation accuracy of the subsequent implant.

[0007] In the aforementioned high-precision implant installation 3D printed fixing module, the outer wall of the nut and the inner wall of the fixing seat are connected by threads, and the tightening direction of the threaded connection is consistent with the rotation and clamping direction of the locking block in the slot; this ensures that there is no radial offset between the nut and the fixing seat, thereby improving the installation accuracy of the subsequent implant.

[0008] In the aforementioned high-precision implant installation 3D printed fixing module, the inner wall of the fixing seat is provided with an axial sliding groove, which facilitates the movement of the locking block on the nut to the position of the locking slot through the sliding groove, making it convenient to use.

[0009] In the aforementioned high-precision implant installation 3D printed fixing module, the top surface of the sliding groove connected to the card slot is a plane, which can limit the movement distance of the card block in the sliding groove, making it convenient for the card block to align with the card slot and easy to use.

[0010] In the aforementioned high-precision implant installation 3D printed fixing module, the bottom surface of the groove and the card slot is provided with an arc surface, and the bottom surface of the wedge-shaped tip on the card block is provided with a rounded corner; this allows the card block to be easily rotated and inserted into the card slot, making it convenient to use and improving installation efficiency.

[0011] In the aforementioned high-precision implant installation 3D printed fixing module, the bottom surface of the nut is provided with a groove; the nut can be rotated through the groove, making it easy for the locking block to be inserted into the slot, and it is convenient to use.

[0012] In the aforementioned high-precision implant installation 3D printed fixing module, there are 4 grooves, which are evenly distributed in a circle on the bottom surface of the nut; this facilitates even force distribution when rotating the nut and makes installation convenient.

[0013] In the aforementioned high-precision implant installation 3D printed fixing module, there are two of each of the sliding groove, slot, and block. The two sliding grooves are symmetrically arranged on the inner wall of the fixing base, the two slots are symmetrically arranged on the inner wall of the fixing base, and the two blocks are symmetrically arranged on the outer wall of the nut. This allows the blocks on the nut to be clamped in the slots and the force to be evenly distributed, thereby improving the installation stability between the nut and the fixing base.

[0014] Compared with existing technologies, this invention improves the existing 3D printed fixing structure for implant installation. It designs a slot on the fixing base and a locking block on the nut for engagement. Both the slot and the locking block are wedge-shaped, with the bottom surfaces of both the slot and the locking block being flat. This prevents these surfaces from being printed in mid-air, ensuring vertical accuracy. In use, the locking block is rotated into the slot. The wedge-shaped structure of the slot and the locking block allows the top surface of the slot to gradually press the locking block firmly into place as the block is gradually screwed into the slot. This design further improves the installation height of the locking block on the mounting base, thereby increasing the accuracy of the nut's installation height on the mounting base. Finally, the implant and nut are fixed together by threads. Therefore, this invention improves the installation accuracy of the implant and ensures the accuracy of subsequent scanning. At the same time, this invention sets the rotation and locking direction of the locking block and the slot to be consistent with the thread tightening direction of the implant and the nut. This ensures that the torque applied during implant installation will not cause the locking block to unscrew out of the slot. The installation structure of the locking block and the slot is more secure when the torque is applied during implant installation, further improving the installation accuracy of the implant. Furthermore, this invention employs a metal nut, ensuring a stable connection between the thread inside the nut and the threaded structure of the metal implant. This prevents stripping of the 3D-printed thread during frequent replacements or experiments, thus avoiding reduced installation accuracy. Additionally, this invention utilizes an axial groove, an arc-shaped design at the connection between the groove and the slot, and a rounded corner design on the locking block to facilitate quick rotation and insertion of the locking block into the slot, enhancing convenience and improving installation efficiency. A groove is also provided on the bottom surface of the nut to facilitate rotation of the nut, thereby facilitating the insertion of the locking block into the slot and further improving installation efficiency.

[0015] Therefore, this invention not only improves the installation accuracy of implants and ensures the accuracy of subsequent scanning, but also has the advantages of being easy to use and having high installation efficiency. Attached Figure Description

[0016] Figure 1 This is an exploded view of the structure of this utility model;

[0017] Figure 2 This is a sectional view of the fixed base;

[0018] Figure 3 This is a schematic diagram of the nut structure;

[0019] Figure 4 This is a cross-sectional view of the connection between the mounting base and the nut.

[0020] The markings in the attached diagram are: 1-fixed base, 2-nut, 3-slot, 4-slide groove, 5-block, 6-thread, 7-arc surface, 8-groove. Detailed Implementation

[0021] Example 1. A high-precision implant installation 3D-printed fixing module, comprising as follows: Figures 1 to 4 As shown, the device includes a cylindrical mounting base 1, a nut 2 installed inside the mounting base 1, and a circumferentially arranged wedge-shaped groove 3 on the inner wall of the mounting base 1. One end of the groove 3 is connected to a sliding groove 4 located on the inner wall of the mounting base 1, and the end of the sliding groove 4 corresponding to the bottom surface of the mounting base 1 is open. The bottom surface of the groove 3 is flat, and the top surface of the groove 3 is inclined. The outer wall of the nut 2 is provided with a wedge-shaped locking block 5, and the bottom surface of the locking block 5 is flat. The inner wall of the nut 2 is provided with threads 6. The locking block 5 can slide in the sliding groove 4 to the position of the groove 3 and rotate to lock into the groove 3 until it is locked. The rotation and locking direction of the locking block 5 and the groove 3 is consistent with the tightening direction of the implant and the thread of the nut 2.

[0022] The nut 2 is a metal nut; when the nut 2 is connected to the fixing base 1, the two are interference fit; the inner wall of the fixing base 1 is provided with an axial sliding groove 4; the top surface of the sliding groove 4 that connects to the slot 3 is a plane; the bottom surface of the sliding groove 4 and the slot 3 is provided with an arc surface 7; the bottom surface of the wedge-shaped tip of the locking block 5 is provided with a rounded corner; the bottom surface of the nut 2 is provided with a groove 8; there are 4 grooves 8, which are evenly distributed in a circle on the bottom surface of the nut 2; there are 2 sliding grooves 4, 2 slots 3 and 2 locking blocks 5, with the 2 sliding grooves 4 centrally symmetrically arranged on the inner wall of the fixing base 1, the 2 slots 3 centrally symmetrically arranged on the inner wall of the fixing base 1, and the 2 locking blocks 5 centrally symmetrically arranged on the outer wall of the nut 2.

[0023] Working principle: During implant installation and adjustment, firstly, align the locking block 5 of nut 3 with the opening of the slide groove 4 of the fixing base 1, with the groove 8 at the bottom of nut 2 facing downwards. Push nut 2 until the top surface of locking block 5 contacts the top surface of slide groove 4. Use a tool (such as a flathead screwdriver) to wedge into the groove 8 at the bottom of nut 2, and then rotate the tool to drive nut 2 so that locking block 5 is locked into the slot 3. Continue to rotate nut 2 with force so that the wedge-shaped locking block 5 continues to be squeezed into the wedge-shaped slot 3. Use the top surface (sloping surface) of the wedge-shaped slot 3 to press the wedge-shaped locking block 5, and gradually press the locking block 5 onto the bottom surface (plane) of the wedge-shaped slot 3 for locking and fixing. The high precision of the bottom surface (plane) of the wedge-shaped slot 3 is used to fix the installation accuracy of locking block 5 and nut 2 on the fixing base 1, which can avoid the problem of low fixing position accuracy caused by low printing accuracy of the top surface of the slot 3. During subsequent implant installation, since the rotational clamping direction of the locking block 5 and the locking groove 3 is consistent with the screw tightening direction of the implant and the nut 2, the locking block 5 and the locking groove 3 will only be further tightened and fixed during implant installation, improving the stability of the installation structure during use. For disassembly, rotating the implant in the opposite direction will unscrew the locking block 5 out of the locking groove 3. Using the sliding groove 4 to restrict further rotation of the locking block 5 allows the implant to be unscrewed from the nut 2. At this point, the locking block 5 is completely separated from the locking groove 3. By pulling down the nut 2, the locking block 5 can slide out of the fixing seat 1 through the sliding groove 4, facilitating future use.

[0024] Example 2. A high-precision implant installation 3D-printed fixing module, configured as follows: Figures 1 to 4 As shown, the device includes a cylindrical mounting base 1, a nut 2 installed inside the mounting base 1, and a circumferentially arranged wedge-shaped groove 3 on the inner wall of the mounting base 1. One end of the groove 3 is connected to a sliding groove 4 located on the inner wall of the mounting base 1, and the end of the sliding groove 4 corresponding to the bottom surface of the mounting base 1 is open. The bottom surface of the groove 3 is flat, and the top surface of the groove 3 is inclined. The outer wall of the nut 2 is provided with a wedge-shaped locking block 5, and the bottom surface of the locking block 5 is flat. The inner wall of the nut 2 is provided with threads 6. The locking block 5 can slide in the sliding groove 4 to the position of the groove 3 and rotate to lock into the groove 3 until it is locked. The rotation and locking direction of the locking block 5 and the groove 3 is consistent with the tightening direction of the implant and the thread of the nut 2.

[0025] The nut 2 is a metal nut; the outer wall of the nut 2 and the inner wall of the fixing base 1 are connected by threads, and the tightening direction of the threaded connection is consistent with the rotation and clamping direction of the locking block 5 in the locking groove 3; the inner wall of the fixing base 1 is provided with an axial sliding groove 4; the top surface of the sliding groove 4 that connects to one end of the locking groove 3 is a plane; the bottom surface of the sliding groove 4 and the locking groove 3 is provided with an arc surface 7, and the bottom surface of the wedge-shaped tip of the locking block 5 is provided with a rounded corner; the bottom surface of the nut 2 is provided with a groove 8; there are 4 grooves 8, and the 4 grooves 8 are evenly distributed in a circle on the bottom surface of the nut 2; there are 2 sliding grooves 4, 2 locking grooves 3, and 2 locking blocks 5, with the 2 sliding grooves 4 being centrally symmetrically arranged on the inner wall of the fixing base 1, the 2 locking grooves 3 being centrally symmetrically arranged on the inner wall of the fixing base 1, and the 2 locking blocks 5 being centrally symmetrically arranged on the outer wall of the nut 2.

Claims

1. A 3D printing jig set for high-precision implant installation, characterized by: The utility model provides a kind of fixing base (1) including cylinder, screw cap (2) is installed in fixing base (1), and wedge-shaped clamping groove (3) is equipped on the inner wall of fixing base (1) and is arranged in circumference;Clamping groove (3) one end is communicated with the slide groove (4) on the inner wall of fixing base (1), and the one end of slide groove (4) is opened corresponding to the bottom surface of fixing base (1);The bottom surface of clamping groove (3) is plane, and the top surface of clamping groove (3) is inclined plane;The outer wall of screw cap (2) is equipped with wedge-shaped clamping block (5), and the bottom surface of clamping block (5) is plane;The inner wall of screw cap (2) is equipped with thread (6), and clamping block (5) can be slid to the position of clamping groove (3) in slide groove (4) and is rotated and clamped into clamping groove (3) to clamp tightly, and the rotating clamping direction of clamping block (5) and clamping groove (3) and the screwing direction of implant and screw cap (2) thread are identical.

2. The 3D printing fixture module for high-precision implant installation according to claim 1, characterized in that: The screw cap (2) is a metal screw cap.

3. The 3D printing fixture module for high-precision implant installation according to claim 1, characterized in that: When the screw cap (2) is connected with the fixing base (1), the two are interference fit.

4. The high-precision 3D printing fixture module for implant installation according to claim 1, characterized in that: The outer wall of screw cap (2) and the inner wall of fixing base (1) are connected by thread, and the screwing direction of thread connection and the rotating clamping direction of clamping block (5) in clamping groove (3) are identical.

5. The high-precision 3D printing fixture module for implant installation according to claim 1, characterized in that: The inner wall of fixing base (1) is equipped with axial slide groove (4).

6. The high-precision 3D printing fixture module for implant installation according to claim 1, characterized in that: The top surface of one end of clamping groove (3) communicated on slide groove (4) is plane.

7. The high-precision 3D printing fixture module for implant installation according to claim 1, characterized in that: The bottom surface of one end of wedge-shaped tip of clamping block (5) is equipped with rounded corner.

8. The high-precision 3D printing fixture module for implant installation according to claim 1, characterized in that: The bottom surface of screw cap (2) is equipped with recess (8).

9. The high-precision 3D printing fixture module for implant installation according to claim 8, characterized in that: The recess (8) is equipped with four, and four recesses (8) are evenly distributed on the bottom surface of screw cap (2) in circumference.

10. The 3D printing fixture module for high-precision implant installation according to any one of claims 1 to 9, characterized in that: The slide groove (4), clamping groove (3) and clamping block (5) are all equipped with two, two slide grooves (4) are centrally symmetrically arranged on the inner wall of fixing base (1), two clamping grooves (3) are centrally symmetrically arranged on the inner wall of fixing base (1), and two clamping blocks (5) are centrally symmetrically arranged on the outer wall of screw cap (2).

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