Anchorage nail hole Ming lock fixing device and its application method

Abstract

This invention provides a pin-mounted orifice lock fixing device, comprising a cover body fitted onto the upper end of the pin-mounted orifice lock; the cover body having a first limiting channel and a second limiting channel, the first limiting channel being positioned above the second limiting channel, and two second limiting channels being provided, located on opposite sides of the pin-mounted orifice lock; an insert being located on the side of the cover body and inserted into the cover body; and a side cover, a first limiting rod, and a second limiting rod, the first limiting rod being an L-shaped rod passing through and engaging with the first limiting channel, and two second limiting rods being provided, each passing through one of the two second limiting channels; this technical solution solves the problem in the prior art where pin-mounted orifice locks can detach due to inflammation during use, thus affecting the orthodontic effect of the pin-mounted orifice lock; furthermore, this invention also provides an application method for the pin-mounted orifice lock fixing device.

Description

Technical Field

[0001] This invention relates to a bolt anchor, and more particularly to a bolt anchor hole-lock fixing device and its application method. Background Technology

[0002] Orthodontic anchorage screws, also known as micro-screw implants, are small, temporary prostheses embedded in the alveolar bone. Their function is to provide stable energy to assist in tooth movement. Orthodontic anchorage screws are typically implanted in the maxillary posterior teeth region, mandibular posterior teeth region, hard palate, alveolar septum, etc., to provide anchorage for orthodontic treatment and withstand the reaction forces caused by tooth movement.

[0003] Currently, conventional anchorage screws used in clinical practice consist of an anchorage screw head, an anchorage screw neck, and an anchorage screw thread. Traction orthodontics is achieved by placing anchorage wires at the head or neck of the anchorage screw. However, the current anchorage screw structure is too simple, simply hanging the anchorage wires on the anchorage screw head. The grooves and other structures in the head are very easy for food to get trapped, and it is difficult to clean over a long period of time, which can easily cause gingivitis. To solve this problem, new anchorage screw structures have gradually emerged.

[0004] For example, Chinese patent CN210673466U discloses an anchorage screw for orthodontics, which includes an anchorage screw head, an anchorage screw neck, and an anchorage screw threaded portion arranged from top to bottom. The anchorage screw head is provided with a fixing device for installing the anchorage wire. The fixing device includes a hanging post disposed on the anchorage screw head for fixing the anchorage wire. There are no fewer than three hanging posts, which are evenly distributed along the edge of the anchorage screw head. The anchorage screw head is also fastened with a cover that can accommodate the fixing device. The edge of the cover is provided with a notch for exposing one hanging post. The cover is fixed to the anchorage screw head by a locking device.

[0005] During use, these anchorage screws can detach due to inflammation, which can affect their orthodontic effect. Summary of the Invention

[0006] In view of the shortcomings of the prior art described above, the purpose of this invention is to provide a pin-mounted locking device to solve the problem that pins in the prior art still have the problem of inflammation and detachment during use, which affects the orthodontic effect of the pins; in addition, this invention also provides a method for applying the pin-mounted locking device.

[0007] To achieve the above and other related objectives, the present invention provides a bolt-lock fixing device, comprising:

[0008] The cover is fitted onto the upper end of the anchoring nail; the cover is provided with a first limiting channel and a second limiting channel, the first limiting channel is located above the second limiting channel, and there are two second limiting channels, located on both sides of the anchoring nail respectively;

[0009] The plug-in is located on the side of the cover and is inserted into the cover; it includes a side cover, a first limiting rod and a second limiting rod, the first limiting rod is an L-shaped rod, the first limiting rod passes through a first limiting channel and is engaged with the first limiting channel, and there are two second limiting rods, which pass through two second limiting channels respectively.

[0010] Through the above technical solution, the cover is fitted onto the upper end of the anchorage nail, preventing the anchorage nail from accumulating dirt in the groove on its upper surface, thus avoiding oral inflammation. On the other hand, the two second limiting channels in the cover are located on both sides of the anchorage nail head. When the insert is inserted from the side of the cover, the two second limiting rods pass through the two second limiting channels to limit the head of the anchorage nail. The first limiting rod passes through the first limiting channel, and its L-shaped structure allows the insert to engage with the cover. The anchorage nail is effectively prevented from falling off during use by the action of the second limiting rod, and the first limiting rod can fix the insert and prevent it from falling off the cover.

[0011] In one embodiment of the present invention, the first limiting channel includes an expanding end and a contracting end, and the diameter of the first limiting channel gradually decreases from the expanding end to the contracting end; an insertion section is provided on the outer side of the expanding end, and a fixing section is provided on the outer side of the contracting end; the diameter of the insertion section is smaller than the diameter of the contracting end.

[0012] With the above technical solution, when in use, the cross-section of the first limiting channel between the expansion end and the contraction end is trapezoidal, and the bottom surface of the trapezoid extends horizontally, while the top surface of the trapezoid is inclined. The horizontal extension of the bottom surface can avoid interference between the first limiting channel and the second limiting channel, and it is also easier to manufacture.

[0013] In one embodiment of the present invention, the first limiting rod includes a horizontal rod and a vertical rod, the end of the horizontal rod away from the side cover is connected to the vertical rod, and the length of the vertical rod is less than the inner wall diameter of the contraction end of the first limiting channel.

[0014] With the above technical solution, during use, the horizontal bar of the first limiting rod passes through the insertion section, the expansion end, and the contraction end in sequence, while the vertical bar of the first limiting rod is in the fixed section. At this time, the positions of the first limiting rod and the first limiting channel are relatively fixed, and the support nail is fixed by the cover. When the first limiting rod is moved so that both the vertical bar and the horizontal bar of the first limiting rod are located between the expansion end and the contraction end, the first limiting rod can slide outward along the first limiting channel. At this time, the insert can be separated from the cover, making it easy to remove the support nail.

[0015] In one embodiment of the present invention, the cover body is further provided with a central channel, the central channel being adapted to the support nail, and two second limiting channels passing through the middle sidewall of the central channel.

[0016] In one embodiment of the present invention, the path direction within the fixed segment is perpendicular to the path direction within the inserted segment.

[0017] With the above technical solution, the fixed end and the insertion section are perpendicular to each other, which can better adapt to the L-shaped structural features of the first limiting rod, so that the position of the first limiting rod and the first limiting channel are relatively fixed and do not shift.

[0018] In one embodiment of the present invention, the cover includes a bottom cover and a top cover, the bottom cover and the top cover are fixedly connected, the upper half of the first limiting channel is located at the bottom of the top cover and the lower half is located at the top of the bottom cover, and the bottom cover and the top cover are joined together to form the first limiting channel.

[0019] The above technical solution separates the cover into a top cover and a bottom cover, reducing the manufacturing difficulty of the cover during the production process.

[0020] The present invention also provides a method for applying a bracing nail hole-lock fixing device, comprising the following steps:

[0021] S1. Cover assembly: The top cover and bottom cover are prepared according to the 3D model, and then the top cover and bottom cover are assembled and fixedly connected to form the cover body;

[0022] S2. Preparation of the plug-in intermediate: The plug-in intermediate is prepared according to the 3D model; the plug-in intermediate refers to the plug-in including a side cover, a first limiting rod and a second limiting rod, and the first limiting rod only includes a horizontal rod and does not include a vertical rod.

[0023] S3. Fitting and inserting: Fit the cover onto the anchorage nail in the patient's mouth, then insert the plug into the side of the cover, and fix the vertical rod and horizontal rod in the first limiting rod through the fixing section of the first limiting channel, so that the cover is fixed to the anchorage nail.

[0024] In one embodiment of the present invention, the connection method of the vertical rod and the horizontal rod in the first limiting rod in step S3 is laser welding.

[0025] As described above, the anchor bolt hole-lock fixing device and its application method of the present invention have the following beneficial effects:

[0026] The cap is fitted over the upper end of the anchorage nail to prevent dirt from accumulating in the grooves on the upper surface of the nail, thus avoiding oral inflammation. Furthermore, the cap has two second limiting channels located on either side of the nail head. When the insert is inserted from the side of the cap, the two second limiting rods pass through the two second limiting channels to limit the nail head, while the first limiting rod passes through the first limiting channel, using its L-shaped structure to engage the insert with the cap. The second limiting rods effectively prevent the nail from falling off during use, and the first limiting rod secures the insert to the cap. Attached Figure Description

[0027] Fig. 1 The diagram shown is an overall structural schematic of the anchor bolt hole lock fixing device disclosed in an embodiment of the present invention.

[0028] Fig. 2 The diagram shown is a schematic representation of the internal structure of the cover of the anchor bolt hole lock fixing device disclosed in an embodiment of the present invention.

[0029] Fig. 3 The diagram shown is a partial structural schematic of the insert in the anchor bolt hole lock fixing device disclosed in an embodiment of the present invention.

[0030] Fig. 4 The diagram shown is a partial structural schematic of the first limiting channel of the anchor bolt hole lock fixing device disclosed in an embodiment of the present invention.

[0031] Fig. 5 The diagram shows step S1 of the application method of the anchorage nail hole-open lock fixing device disclosed in the embodiment of the present invention.

[0032] Fig. 6 The diagram shows step S2 of the application method of the anchor bolt hole lock fixing device disclosed in this embodiment of the invention.

[0033] Fig. 7 The diagram shows step S3 of the application method of the anchorage nail hole-open lock fixing device disclosed in this embodiment of the invention.

[0034] Component designation explanation

[0035] 1. Cover; 2. Insert; 3. Bottom cover; 4. Top cover; 5. First limiting channel; 6. Second limiting channel; 7. Expansion end; 8. Contraction end; 9. Fixing section; 10. Insertion section; 11. Side cover; 12. First limiting rod; 13. Vertical rod; 14. Horizontal rod; 15. Second limiting rod; 16. Support nail. Detailed Implementation

[0036] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification.

[0037] Please see Figs. 1-7 It should be understood that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and to facilitate understanding and reading. They are not intended to limit the scope of the invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of the invention, should still fall within the scope of the technical content disclosed in this invention. Furthermore, the terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of the invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the invention's implementation.

[0038] Example 1

[0039] Please see Figs. 1-4 The present invention provides a support nail hole lock fixing device, comprising a cover 1 and a plug 2 that are inserted into each other.

[0040] The cover 1 is fitted onto the upper end of the anchor nail 16; the cover 1 is provided with a first limiting channel 5 and a second limiting channel 6. The first limiting channel 5 is located above the second limiting channel 6. There are two second limiting channels 6, located on both sides of the anchor nail 16 respectively.

[0041] Furthermore, the cover 1 includes a bottom cover 3 and a top cover 4, which are fixedly connected. The upper half of the first limiting channel 5 is located at the bottom of the top cover 4, and the lower half is located at the top of the bottom cover 3. The bottom cover 3 and the top cover 4 are assembled to form the first limiting channel 5. Disassembling the cover 1 into the top cover 4 and the bottom cover 3 reduces the manufacturing difficulty of the cover 1 during the production process.

[0042] The plug 2 is located on the side of the cover 1 and is inserted into the cover 1; it includes a side cover 11, a first limiting rod 12 and a second limiting rod 15. The first limiting rod 12 is an L-shaped rod that passes through the first limiting channel 5 and is engaged with the first limiting channel 5. There are two second limiting rods 15, which pass through two second limiting channels 6 respectively.

[0043] The cover 1 is fitted onto the upper end of the anchorage nail 16 to prevent dirt from accumulating in the grooves on the upper surface of the anchorage nail 16, thus avoiding oral inflammation. On the other hand, the two second limiting channels 6 in the cover 1 are located on both sides of the head of the anchorage nail 16. When the insert 2 is inserted from the side of the cover 1, the two second limiting rods 15 pass through the two second limiting channels 6 to limit the head of the anchorage nail 16. The first limiting rod 12 passes through the first limiting channel 5 and uses its L-shaped structure to engage the insert 2 with the cover 1. The anchorage nail 16 is effectively prevented from falling off during use by the second limiting rods 15, and the first limiting rod 12 can fix the insert 2 so that it does not fall off the cover 1.

[0044] Specifically, the first limiting channel 5 includes an expanding end 7 and a contracting end 8. The diameter of the first limiting channel 5 gradually decreases from the expanding end 7 to the contracting end 8. An insertion section 10 is provided on the outside of the expanding end 7, and a fixing section 9 is provided on the outside of the contracting end 8. The diameter of the insertion section 10 is smaller than the diameter of the contracting end 8. The path direction within the fixing section 9 is perpendicular to the path direction within the insertion section 10.

[0045] In use, the first limiting channel 5 has a trapezoidal cross-section between the expansion end 7 and the contraction end 8, with the bottom surface of the trapezoid extending horizontally and the top surface inclined. The horizontal extension of the bottom surface avoids interference between the first limiting channel 5 and the second limiting channel 6, and also facilitates manufacturing. The fixed end is perpendicular to the insertion section 10, which better adapts to the L-shaped structural features of the first limiting rod 12, ensuring that the positions of the first limiting rod 12 and the first limiting channel 5 are relatively fixed and do not shift.

[0046] Specifically, the first limiting rod 12 includes a horizontal rod 14 and a vertical rod 13. The end of the horizontal rod 14 away from the side cover 11 is connected to the vertical rod 13. The length of the vertical rod 13 is less than the inner wall diameter of the contraction end 8 in the first limiting channel 5.

[0047] In use, the horizontal rod 14 of the first limiting rod 12 passes sequentially through the insertion section 10, the expansion end 7, and the contraction end 8, while the vertical rod 13 of the first limiting rod 12 is located within the fixed section 9. At this time, the positions of the first limiting rod 12 and the first limiting channel 5 are relatively fixed, and the support nail 16 is fixed by the cover body 1. When the first limiting rod 12 is moved so that the vertical rod 13 and the horizontal rod 14 of the first limiting rod 12 are both located between the expansion end 7 and the contraction end 8, the first limiting rod 12 can slide outward along the first limiting channel 5. At this time, the insert 2 can be separated from the cover body 1, making it easy to remove the support nail 16.

[0048] Specifically, the cover 1 is also provided with a central channel, which is adapted to the anchor nail 16, and two second limiting channels 6 pass through the middle side wall of the central channel.

[0049] Example 2

[0050] Please see Figs. 5-7 A method for applying a bolt-lock fixing device includes the following steps:

[0051] S1. Assemble the cover 1; Prepare the top cover 4 and bottom cover 3 according to the 3D model, and assemble the top cover 4 and bottom cover 3 to fix them together to obtain the cover 1;

[0052] S2, Preparation of intermediate plug-in 2: The intermediate plug-in 2 is prepared according to the 3D model; the intermediate plug-in 2 refers to plug-in 2 including side cover 11, first limiting rod 12 and second limiting rod 15, and the first limiting rod 12 only includes horizontal rod 14 and does not include vertical rod 13.

[0053] S3. Fitting and inserting: Fit the cover 1 onto the anchorage nail 16 in the patient's mouth, then insert the plug 2 from the side of the cover 1, and fix the vertical rod 13 and horizontal rod 14 in the first limiting rod 12 through the fixing section 9 of the first limiting channel 5, so that the cover 1 is fixed to the anchorage nail 16.

[0054] In step S3, the vertical rod 13 and the horizontal rod 14 of the first limiting rod 12 are connected by laser welding.

[0055] In summary, this invention, by fitting the cover 1 onto the upper end of the anchorage nail 16, avoids oral inflammation caused by dirt accumulating in the grooves on the upper surface of the anchorage nail 16. Furthermore, the two second limiting channels 6 in the cover 1 are located on either side of the head of the anchorage nail 16. When the insert 2 is inserted from the side of the cover 1, the two second limiting rods 15 pass through the two second limiting channels 6, limiting the head of the anchorage nail 16. The first limiting rod 12 passes through the first limiting channel 5, and its L-shaped structure engages the insert 2 with the cover 1. The anchorage nail 16 is effectively prevented from falling off during use by the second limiting rods 15, and the first limiting rod 12 secures the insert 2, preventing it from falling off the cover 1. Therefore, this invention effectively overcomes the various shortcomings of the prior art and has high industrial applicability.

[0056] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.

Claims

1. A bolt-lock fixing device, characterized in that, include The cover is fitted onto the upper end of the anchoring nail; the cover is provided with a first limiting channel and a second limiting channel, the first limiting channel is located above the second limiting channel, and there are two second limiting channels, located on both sides of the anchoring nail respectively; The plug-in is located on the side of the cover and is inserted into the cover; it includes a side cover, a first limiting rod and a second limiting rod, the first limiting rod is an L-shaped rod, the first limiting rod passes through a first limiting channel and is engaged with the first limiting channel, and there are two second limiting rods, which pass through two second limiting channels respectively; The first limiting channel includes an expanding end and a contracting end, and the diameter of the first limiting channel gradually decreases from the expanding end to the contracting end; an insertion section is provided on the outside of the expanding end, and a fixing section is provided on the outside of the contracting end; the diameter of the insertion section is smaller than the diameter of the contracting end, and the path direction within the fixing section is perpendicular to the path direction within the insertion section. The first limiting rod includes a horizontal rod and a vertical rod.

2. The anchor bolt hole lock fixing device according to claim 1, characterized in that: The horizontal rod is connected to the vertical rod at the end away from the side cover, and the length of the vertical rod is less than the inner wall diameter of the contraction end of the first limiting channel.

3. The anchor bolt hole lock fixing device according to claim 1, characterized in that: The cover body is also provided with a central channel, which is adapted to the support nail, and two second limiting channels pass through the middle side wall of the central channel.

4. The anchor bolt hole open-lock fixing device according to claim 1, characterized in that: The cover includes a bottom cover and a top cover, which are fixedly connected. The upper half of the first limiting channel is located at the bottom of the top cover and the lower half is located at the top of the bottom cover. The bottom cover and the top cover are joined together to form the first limiting channel.

5. A method for applying the anchor bolt hole lock fixing device as described in any one of claims 1-4, characterized in that, Includes the following steps: S1. Cover assembly: The top cover and bottom cover are prepared according to the 3D model, and then the top cover and bottom cover are assembled and fixedly connected to form the cover body; S2. Preparation of the plug-in intermediate: The plug-in intermediate is prepared according to the 3D model; the plug-in intermediate refers to the plug-in including a side cover, a first limiting rod and a second limiting rod, and the first limiting rod only includes a horizontal rod and does not include a vertical rod. S3. Fitting and inserting: Fit the cover onto the support nail, then insert the plug into the side of the cover, and fix the vertical rod and horizontal rod in the first limiting rod through the fixing section of the first limiting channel, so that the cover is fixed to the support nail.

6. The application method of the anchor bolt hole lock fixing device according to claim 5, characterized in that: In step S3, the connection method between the vertical rod and the horizontal rod in the first limiting rod is laser welding.

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