An orthodontic tool and fitting / removing structure for double-archwire fixation appliances

Abstract

This utility model discloses an orthodontic tool and its fitting and removal mechanism for a double-archwire fixed orthodontic appliance. The orthodontic tool includes a gripping body and a pressing part and an unlocking part connected to the gripping body. A first protrusion is provided on one side of the pressing part, and a second protrusion is provided on one side of the unlocking part. The first protrusion matches a groove on the locking cap of the double-archwire fixed orthodontic appliance, and the second protrusion matches a groove on the pressing wing of the double-archwire fixed orthodontic appliance. This utility model allows the locking cap to be adhered to the orthodontic tool, facilitating micro-operation by the physician in the confined space of the oral cavity. It is flexible, accurate, and labor-saving, greatly reducing the difficulty of installing and removing the locking cap previously required by physicians. Furthermore, its structural features prevent slippage, avoiding the problem of accidental injury to the patient's oral mucosa and improving the patient's treatment experience.

Description

Technical Field

[0001] This utility model relates to the field of orthodontics, specifically to an orthodontic tool for a double archwire fixed orthodontic appliance, and a fitting and removal structure including such an orthodontic tool. Background Technology

[0002] To address the issue of weak three-dimensional control over teeth in traditional single-archwire fixed orthodontic appliances, and to prevent new malocclusion problems from arising due to insufficient control during orthodontic treatment, the applicant has independently developed a dual-archwire fixed orthodontic appliance. For details, please refer to Chinese Invention Application No. CN119970276A - A Dual-Archwire Orthodontic System with High Connection Stability. This orthodontic appliance features a rotating pressing wing mounted on each bracket via a flexible pin. Two archwires are simultaneously threaded onto multiple locking caps, with each cap corresponding to a bracket. During wear, the dentist presses the locking cap onto the corresponding bracket, over the protrusion on the bracket, and locks it in place. The elastic force of the pins secures the cap in place, allowing the archwires to be properly positioned on the teeth. For removal, the dentist presses the pressing wing downwards, causing it to rotate and push the cap out of the bracket. Once the cap is removed, the elastic force of the pins automatically resets the pressing wing until all the caps on each bracket are removed, allowing the caps and both archwires to be taken out simultaneously.

[0003] However, after actual clinical trials and use, the applicant found that installing and removing the locking cap was quite difficult. Understandably, the brackets that need to be bonded to the tooth surface are smaller than the teeth themselves, and the locking cap connected inside the bracket is similarly small, about the size of a grain of rice. For dentists to press the locking cap and rotate the pressure wings with their fingers is quite difficult; the pressing position is hard to align, and slippage is common.

[0004] The installation of the first locking cap is particularly difficult during the wearing process. This is because the number and position of the locking caps, brackets, and teeth are all one-to-one. The locking caps and two archwires are pre-installed as a single piece of clothing. Therefore, once the first locking cap is aligned and fastened, the entire piece of clothing will not fall off in the mouth, thus pre-positioning the other locking caps that have not yet been installed. At this point, you only need to press the remaining locking caps into their corresponding brackets one by one (without having to spend time and effort aligning them). However, when installing the first locking cap, it is necessary to move and adjust the cap in multiple directions within the mouth to ensure that the cap is accurately aligned with the bracket. However, the internal space of the mouth is narrow, and the locking caps and brackets themselves are very small, requiring a high degree of eye-hand coordination from the dentist and consuming a lot of energy. During removal, the dentist needs to press down on the rotating wings. If the fingers or tools (orthodontic forceps) slip, it is easy to puncture the patient's oral mucosa, resulting in a poor treatment experience for the patient. Utility Model Content

[0005] To overcome the shortcomings of the existing technology, one objective of this utility model is to provide an orthodontic tool for double archwire fixed orthodontic appliances, and another objective is to provide a matching structure for wearing and removing such orthodontic tools, which can solve the problem of difficulty in installing and removing existing double archwire fixed orthodontic appliances.

[0006] This utility model is achieved through the following technical solution:

[0007] An orthodontic tool for a double-archwire fixed orthodontic appliance includes: a gripping body and a pressing part and an unlocking part connected to the gripping body; a first protruding structure is provided on one side of the pressing part, and the pressing part has a finger pressing platform on the opposite side of the first protruding structure, suitable for pressing with a finger; a second protruding structure is provided on one side of the unlocking part, and the unlocking part also has a finger pressing platform on the opposite side of the second protruding structure, suitable for pressing with a finger; the first protruding structure matches a groove on the locking cover of the double-archwire fixed orthodontic appliance, and the second protruding structure matches a groove on the pressing wing of the double-archwire fixed orthodontic appliance.

[0008] Furthermore, the gripping body has a straight, elongated structure, and the pressing part and the unlocking part are respectively fixed to two opposite ends of the gripping body.

[0009] Furthermore, the pressing part extends in a direction perpendicular to the gripping body, and the unlocking part extends in a direction perpendicular to the gripping body; the pressing part and the unlocking part are arranged opposite to each other.

[0010] Furthermore, the first protrusion structure is a cylindrical protrusion structure.

[0011] Furthermore, the second protrusion structure is a spherical protrusion structure, and the surface of the second protrusion structure is a spherical surface.

[0012] Furthermore, the gripping body has a plurality of anti-slip textures recessed or a plurality of anti-slip strips protruding on one end near the pressing part.

[0013] Furthermore, the gripping body has a plurality of anti-slip textures recessed or a plurality of anti-slip strips protruding on one end near the unlocking part.

[0014] Furthermore, the orthodontic tool for double archwire fixation appliances further includes: a first connecting part; the two ends of the first connecting part are respectively fixed to the pressing part and the holding body; the first connecting part is conical in shape, and the outer diameter of the first connecting part gradually decreases from the end connected to the holding body to the end connected to the pressing part.

[0015] Furthermore, the orthodontic tool for the double archwire fixation appliance further includes: a second connecting part; the two ends of the second connecting part are respectively fixed to the unlocking part and the holding body; the second connecting part is conical in shape, and the outer diameter of the second connecting part gradually decreases from the end connected to the holding body to the end connected to the pressing part.

[0016] A fitting and removal mechanism includes an orthodontic tool for a double-archwire fixed orthodontic appliance, further comprising: a double-archwire fixed orthodontic appliance; the double-archwire fixed orthodontic appliance includes: a first archwire, a second archwire, a locking cap, brackets, and pressing wings; the first archwire and the second archwire are simultaneously passed through the locking cap, the number of locking caps being the same as the number of brackets, the brackets being used for bonding to the patient's tooth surface; the brackets are provided with pressing wing mounting slots, the pressing wings being rotatably connected to the pressing wing mounting slots of the brackets via an elastic pin; the upper surface of the locking cap is recessed with a locking cap groove, the structure of the locking cap groove matching the first protrusion structure of the orthodontic tool for the double-archwire fixed orthodontic appliance; the upper surface of the pressing wings is recessed with a pressing wing unlocking groove, the structure of the pressing wing unlocking groove matching the second protrusion structure of the orthodontic tool for the double-archwire fixed orthodontic appliance.

[0017] Compared with existing technologies, the beneficial effects that this utility model can achieve are as follows:

[0018] The orthodontic tool of this invention is used in conjunction with the double archwire fixation appliance.

[0019] The orthodontic tool's grip is designed for the operator's hand. When fitting the archwire, first align the first protrusion of the pressing part with the groove on the locking cap and press it in. A small amount of adhesive can be applied beforehand to the side of the first protrusion or inside the locking cap groove to secure the locking cap to the pressing part of the orthodontic tool. The orthodontist can then insert the orthodontic tool, locking cap and all, into the patient's mouth. By adjusting the position of the orthodontic tool, the locking cap is aligned with its corresponding bracket. Then, using the finger pressing platform, the first locking cap is gently pressed inwards with the fingers to engage the bracket. After installing the first locking cap, the remaining locking caps are essentially pre-positioned (because the positional correspondence between the locking cap and the bracket is unique). Therefore, the remaining locking caps can be easily pressed in one by one with the fingers without further adjustment or alignment. Previously, installing the first locking cap was particularly difficult, as the operator could hardly use their fingers to pinch the tiny cap and make accurate adjustments in the mouth. However, in this invention, the locking cap can be adhered to the orthodontic tool by the cooperation of the first protruding structure and the locking cap groove. One end of the orthodontic tool is inserted into the patient's mouth, while the main holding part is held by the doctor. This method allows the doctor to perform micro-operations in the narrow oral space, manipulating the locking cap to align with the bracket. It is also flexible, accurate, and labor-saving, greatly reducing the difficulty of the doctor installing the locking cap.

[0020] When removing the locking caps and archwires, the orthodontist can flip the orthodontic tool over, align the second protrusion of the unlocking part with the groove on the pressing wing, and then gently press inward with the finger pressing platform to make the pressing wing rotate and push the locking cap out of the bracket. By rotating the pressing wings one by one, all the locking caps can be removed. At this point, the locking caps can be removed together with the two archwires to complete the removal or replacement of the archwires.

[0021] Therefore, this invention makes the wearing and removal of the archwire of the double archwire fixation orthodontic appliance more convenient, labor-saving, and efficient. It not only reduces the difficulty of operation for doctors, but also makes it less likely to slip and cause accidental injury to the patient's oral mucosa, thus improving the patient's treatment experience. Attached Figure Description

[0022] Figure 1 The image shown is a front view of the orthodontic tool of this invention.

[0023] Figure 2 The image shown is a perspective view of the orthodontic tool of this invention.

[0024] Figure 3 As shown Figure 2 A magnified view of a section at point A in the middle;

[0025] Figure 4 As shown Figure 2 A magnified view of a section at point B in the middle;

[0026] Figure 5 The diagram shown illustrates the archwire and locking cap of a double archwire fixation orthodontic appliance in the wearing state.

[0027] Figure 6 The diagram shown is a schematic of the archwire and locking cap of a double archwire fixation orthodontic appliance in the removed state;

[0028] Figure 7 The diagram shows the state of the orthodontic tool when the locking cover is pressed.

[0029] Figure 8 The diagram shows the state of the orthodontic tool when the lock cover is removed.

[0030] In the diagram: 10. Orthodontic tool; 11. Pressing part; 111. First protrusion structure; 12. Unlocking part; 121. Second protrusion structure; 13. Holding body; 131. Anti-slip texture; 14. First connecting part; 15. Second connecting part; 16. Finger pressing platform; 20. Double archwire fixed orthodontic appliance; 21. First archwire; 22. Second archwire; 23. Locking cover; 231. Locking cover groove; 24. Bracket; 25. Pressing wing; 251. Pressing wing unlocking groove; 26. Elastic pin. Detailed Implementation

[0031] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0032] In the description of this utility model, it should be understood that the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, 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.

[0033] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0034] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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 according to the specific circumstances.

[0035] This utility model discloses an orthodontic tool 10 for use with a double archwire fixation appliance 20. The orthodontic tool 10 is used in conjunction with the double archwire fixation appliance 20.

[0036] See Figures 1-4 The orthodontic tool 10 includes a gripping body 13, a pressing part 11 connected to the gripping body 13, and an unlocking part 12. See also... Figure 2 and Figure 3 The pressing part 11 has a first protruding structure 111 protruding on one side, and the pressing part 11 has a finger pressing platform 16 on the opposite side of the first protruding structure 111; see reference Figure 2 and Figure 4 The unlocking part 12 has a second protruding structure 121 on one side, and the unlocking part 12 also has a finger pressing platform 16 on the opposite side of the second protruding structure 121. (See reference...) Figure 7 and Figure 8 The first protruding structure 111 matches the locking cover groove 231 of the locking cover 23 of the double-archwire fixed orthodontic appliance 20, and the second protruding structure 121 matches the pressing wing unlocking groove 251 of the pressing wing 25 of the double-archwire fixed orthodontic appliance 20. The finger pressing platform 16 allows the operator's fingers to press down, causing the first protruding structure 111 to engage in the locking cover groove 231, or the second protruding structure 121 to engage in the pressing wing unlocking groove 251, thereby applying force to the locking cover 23 or the pressing wing 25.

[0037] To facilitate understanding of the working principle of the orthodontic tool 10, the structure of its matching double archwire fixation appliance 20 will be explained below.

[0038] See Figures 5-6 The dual-archwire fixation orthodontic appliance 20 includes: a first archwire 21, a second archwire 22, a locking cover 23, a bracket 24, and a pressing wing 25; the first archwire 21 and the second archwire 22 are simultaneously threaded onto the locking cover 23, and the locking cover 23, the first archwire 21, and the second archwire 22 are pre-assembled into a single wearing piece, see Figure 6The number of locking caps 23 is the same as the number of brackets 24, which are used for bonding to the patient's tooth surface. Each bracket 24 has a pressing wing unlocking slot 251, and the pressing wing 25 is rotatably connected to the pressing wing unlocking slot 251 of the bracket 24 via a flexible pin 26. For details, please refer to Chinese Invention Application No. CN119970276A – A Double Archwire Orthodontic System with High Connection Stability.

[0039] Specifically, unlike the technical solution of Chinese invention application with publication number CN119970276A, the upper surface of the lock cover 23 of this utility model is further recessed with a lock cover groove 231, the structure of which matches the first protrusion structure 111 of the orthodontic tool 10; the upper surface of the pressing wing 25 is recessed with a pressing wing 25 unlocking groove, the structure of which matches the second protrusion structure 121 of the orthodontic tool 10.

[0040] The working principle of orthodontic tool 10 is as follows:

[0041] See Figures 1-2 , Figures 7-8 The orthodontic tool 10 has a gripping body 13 for the operator's hand to hold. The tool is a wearable device pre-assembled with the archwire (lock cover 23, first archwire 21, and second archwire 22), as shown in the image. Figure 6 When installing the orthodontic tool 10, first align the first protruding structure 111 of the pressing part 11 with the locking cover groove 231 and press it in. Before pressing, a small amount of adhesive can be applied to the side of the first protruding structure 111 or inside the locking cover groove 231 to fix the locking cover 23 on the pressing part 11 of the orthodontic tool 10. Then, the orthodontist can insert the orthodontic tool 10 along with the locking cover 23 into the patient's mouth. By adjusting the position of the orthodontic tool 10, the locking cover 23 is aligned with its corresponding bracket 24. Then, the finger is used to gently press inward using the finger pressing platform 16 to engage the first locking cover 23 into the bracket 24. After the first locking cover 23 is installed, the remaining locking covers 23 are essentially pre-positioned (because the positional correspondence between the locking cover 23 and the bracket 24 is unique, see...). Figure 6Therefore, the remaining locking caps 23 can be easily pressed in one by one with fingers (without the orthodontic tool 10), without the need for separate position adjustments and alignment. In the past, the installation of the first locking cap 23 was particularly difficult, as the operator could hardly use their fingers to pinch the tiny locking cap 23 and make accurate position adjustments inside the mouth. However, in this utility model, through the cooperation of the first protruding structure 111 and the locking cap groove 231, the locking cap 23 can be adhered to the orthodontic tool 10. One end of the orthodontic tool 10 is inserted into the patient's mouth, while the holding body 13 is held by the doctor. This method is beneficial for the doctor to micro-operate in the narrow oral space, manipulating the locking cap 23 to align with the bracket 24, and has the characteristics of flexibility, accuracy, and labor saving, greatly reducing the difficulty of the doctor's operation in installing the locking cap 23.

[0042] When removing the locking cap 23 and the archwire, the orthodontist can flip the orthodontic tool 10, align the second protrusion 121 of the unlocking part 12 with the groove on the pressing wing 25, and then gently press inward with the finger pressing platform 16 to make the pressing wing 25 rotate and push the locking cap 23 out of the bracket 24. By rotating the pressing wing 25 one by one, all the locking caps 23 can be removed. At this time, the locking caps 23 can be removed together with the two archwires to complete the removal or replacement of the archwires.

[0043] Therefore, this invention makes the wearing and removal of the archwire of the double archwire fixed orthodontic appliance 20 more convenient, labor-saving, and efficient. It not only reduces the difficulty of operation for doctors, but also makes it less likely to slip and cause accidental injury to the patient's oral mucosa, thus improving the patient's treatment experience.

[0044] Preferably, see Figure 3 The first protruding structure 111 is a cylindrical protruding structure, and the locking cover groove 231 is a cylindrical groove. Of course, the first protruding structure 111 and the locking cover groove 231 can also be set to other shapes, as long as they match each other.

[0045] Preferably, see Figure 4 The second protrusion structure 121 is a spherical protrusion structure, and the surface of the second protrusion structure 121 is spherical. Correspondingly, the pressing wing unlocking groove 251 is a spherical groove. Since the pressing wing 25 is inclined relative to the base plate of the bracket 24 in its natural state, this embodiment can better increase the contact area between the unlocking part 12 of the orthodontic tool 10 and the pressing wing 25. Figure 8 Of course, the first protrusion structure 111 and the locking cover groove 231 can also be set to other shapes, as long as they match each other.

[0046] Preferably, see Figures 1-2The main body 13 is a straight, elongated structure, which facilitates the physician's grip on the orthodontic tool 10 and allows for delicate and flexible manipulation within the oral cavity. The pressing part 11 and the unlocking part 12 are fixed to two opposite ends of the main body, respectively. Thus, the physician can flexibly switch between the pressing part 11 and the unlocking part 12 by rotating the main body 13 to perform the corresponding wearing or removal procedures.

[0047] Further preferred, see Figures 1-2 The pressing part 11 extends in a direction perpendicular to the gripping body 13, and the unlocking part 12 extends in a direction perpendicular to the gripping body 13; the pressing part 11 and the unlocking part 12 are arranged opposite to each other. The advantage of this embodiment is that when the physician needs to switch between the pressing part 11 and the unlocking part 12, he can simply rotate the gripping body 13 180 degrees clockwise or counterclockwise to position the first protruding structure 111 or the second protruding structure 121 in the correct orientation without frequent adjustments, making the operation more convenient.

[0048] Preferably, see Figures 1-2 To prevent the orthodontic tool 10 from slipping during operation, the gripping body 13 has a plurality of anti-slip textures 131 recessed on one end near the pressing part 11, or a plurality of anti-slip strips protruding, to increase the friction between the gripping body 13 and the hand.

[0049] Similarly, the grip body 13 has a plurality of anti-slip textures 131 recessed or a plurality of anti-slip strips protruding on one end near the unlocking part 12, in order to increase the friction between the grip body 13 and the hand.

[0050] Preferably, see Figures 1-2 The orthodontic tool 10 also includes a first connecting portion 14. The two ends of the first connecting portion 14 are respectively fixed to the pressing portion 11 and the holding body 13. The first connecting portion 14 is conical in shape, and its outer diameter gradually decreases from the end connected to the holding body 13 to the end connected to the pressing portion 11. The diameter of the first connecting portion 14 gradually decreases in the direction close to the pressing portion 11, which facilitates the movement of the pressing portion 11 within the narrow oral cavity space.

[0051] Similarly, the orthodontic tool 10 also includes a second connecting portion 15. The two ends of the second connecting portion 15 are respectively fixed to the unlocking portion 12 and the holding body 13; the second connecting portion 15 is conical, and its outer diameter gradually decreases from the end connected to the holding body 13 to the end connected to the pressing portion 11. The diameter of the first connecting portion 14 gradually decreases in the direction close to the unlocking portion 12, which facilitates the movement of the unlocking portion 12 within the narrow oral cavity space.

[0052] See Figures 7-8This utility model also discloses a fitting and removal structure, including the aforementioned orthodontic tool 10, and a double archwire fixation appliance 20 that matches the orthodontic tool 10. Any fitting and removal structure that uses the same or substantially the same orthodontic tool 10 should be within the protection scope of this utility model.

[0053] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. An orthodontic tool for use with double archwire fixation appliances, characterized in that, include: The gripping body includes a pressing part and an unlocking part connected to the gripping body. The pressing part has a first protruding structure on one side, and a finger-pressing platform suitable for pressing with a fingertip on the opposite side of the first protruding structure. The unlocking part has a second protruding structure on one side, and also a finger-pressing platform suitable for pressing with a fingertip on the opposite side of the second protruding structure. The first protruding structure matches a groove on the locking cover of the double-archwire fixation orthodontic appliance, and the second protruding structure matches a groove on the pressing wing of the double-archwire fixation orthodontic appliance.

2. The orthodontic tool with a double archwire fixation device as described in claim 1, characterized in that, The grip body has a straight, elongated structure, and the pressing part and the unlocking part are respectively fixed to two opposite ends of the grip body.

3. The orthodontic tool with a double archwire fixation appliance as described in claim 2, characterized in that, The pressing part extends in a direction perpendicular to the gripping body, and the unlocking part extends in a direction perpendicular to the gripping body; the pressing part and the unlocking part are arranged opposite to each other.

4. The orthodontic tool for double-archwire fixation appliances as described in claim 1, characterized in that, The first protrusion structure is a cylindrical protrusion structure.

5. The orthodontic tool for double-archwire fixation appliances as described in claim 1, characterized in that, The second protrusion structure is a spherical protrusion structure, and the surface of the second protrusion structure is a spherical surface.

6. The orthodontic tool for double-archwire fixation appliances as described in claim 1, characterized in that, The gripping body has a plurality of anti-slip textures recessed or a plurality of anti-slip strips protruding on one end near the pressing part.

7. The orthodontic tool for double-archwire fixation appliances as described in claim 1, characterized in that, The gripping body has a number of anti-slip textures recessed or a number of anti-slip strips protruding on one end near the unlocking part.

8. The orthodontic tool with a double archwire fixation device as described in claim 2, characterized in that, The orthodontic tool for double archwire fixation appliances further includes: a first connecting part; the two ends of the first connecting part are respectively fixed to the pressing part and the holding body; the first connecting part is conical in shape, and the outer diameter of the first connecting part gradually decreases from the end connected to the holding body to the end connected to the pressing part.

9. The orthodontic tool with a double archwire fixation device as described in claim 2, characterized in that, The orthodontic tool for double archwire fixation appliances further includes: a second connecting part; the two ends of the second connecting part are respectively fixed to the unlocking part and the holding body; the second connecting part is conical in shape, and the outer diameter of the second connecting part gradually decreases from the end connected to the holding body to the end connected to the pressing part.

10. A donning and wearing matching structure, characterized in that, Orthodontic tools including the double archwire fixation appliance as described in any one of claims 1 to 9, further comprising: the double archwire fixation appliance; The double-archwire fixed orthodontic appliance includes: a first archwire, a second archwire, a locking cap, a bracket, and a pressing wing; the first archwire and the second archwire are simultaneously passed through the locking cap, the number of locking caps is the same as the number of brackets, and the brackets are used to bond to the patient's tooth surface; the brackets are provided with pressing wing mounting slots, and the pressing wings are rotatably connected to the pressing wing mounting slots of the brackets via an elastic pin; The upper surface of the locking cover is recessed with a locking cover groove, the structure of which matches the first protrusion structure of the orthodontic tool for double archwire fixation; the upper surface of the pressing wing is recessed with a pressing wing unlocking groove, the structure of which matches the second protrusion structure of the orthodontic tool for double archwire fixation.

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