TPU (thermoplastic polyurethane) wire additive manufacturing customized early-stage appliance based on 3d (three-dimensional) printing

Abstract

The utility model relates to the technical field of appliances, and discloses a TPU (thermoplastic polyurethane) wire additive manufacturing customized early appliance based on 3d (three-dimensional) printing, which comprises a tooth socket body, a tooth socket arranged on the tooth socket body, a sliding plate arranged on the front side surface of the tooth socket body and capable of sliding, a sliding block arranged on the sliding plate, a sliding rod arranged on the sliding block and provided with one end inserted into the tooth socket, and the other end inserted into the tooth socket. A sliding cavity with an opening in one end is formed in the sliding rod, a fixing plate is arranged on the rear side face of the tooth socket body, a fixing rod with one end inserted into the sliding cavity is arranged on the fixing plate, and a positioning assembly is arranged on the sliding rod. By means of the structure, the fixing rod slides in the sliding cavity, the position of the fixing rod after sliding is positioned through the positioning assembly, the length of the sliding rod and the length of the fixing rod are adjusted, when the sliding rod and the fixing rod are installed at different positions of the tooth socket body, gap maintaining rods with different lengths do not need to be replaced, and the operation is convenient. And the device is convenient in actual use and good in practicability.

Description

Technical Field

[0001] This utility model relates to the field of orthodontic technology, specifically to a customized early orthodontic appliance based on 3D printing TPU filament additive manufacturing. Background Technology

[0002] Premature loss of primary teeth is a common problem during the primary and mixed dentition stages. For example, premature loss of primary anterior teeth can lead to a loss of space in the anterior region, resulting in insufficient space for permanent teeth to erupt, which in turn can cause crowding or impaction of the teeth. Premature loss of primary molars can cause mesial tilting of the permanent molars, preventing subsequent permanent teeth from erupting and leading to problems such as cysts. Currently, most treatments for premature loss of primary teeth use early induction orthodontic appliances.

[0003] For example, a dental appliance disclosed in patent CN219846875U can solve problems such as crowded teeth, narrow arches, and abnormal muscle function in children. It can also be worn at night with a traction device to prevent the appliance from dislodging from the mouth. The appliance, along with a space maintenance bar, can maintain space at the location of missing teeth. However, in actual use, the length of the space maintenance bar cannot be adjusted. When the space maintenance bar is inserted into different holes, it needs to be replaced with a different length, which is inconvenient to use and therefore requires improvement. Utility Model Content

[0004] The purpose of this invention is to provide a customized early orthodontic appliance based on 3D printing of TPU filament additive manufacturing, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A customized early orthodontic appliance based on 3D printing TPU filament additive manufacturing includes an orthodontic body with grooves for tooth insertion. A slide plate is located on the front side of the orthodontic body, and a slider with one end inserted into the orthodontic body is located on the slide plate. A slide rod with one end inserted into the groove is located on the slider, and a cavity with one open end is located within the slide rod. A fixing plate is located on the rear side of the orthodontic body, and a fixing rod with one end inserted into the cavity is located on the fixing plate. A positioning component is located on the slide rod to position the fixing rod within the cavity, thereby adjusting the length of the fixing rod.

[0007] Preferably, the fixed rod located inside the sliding cavity is provided with a corresponding fixed block;

[0008] The positioning component includes a sliding groove disposed on the sliding rod and opposite to it. The sliding groove is set along the length direction of the sliding rod. The fixing blocks on the fixing rod are respectively locked into the corresponding sliding grooves. Multiple slots are opened on one side wall of the sliding groove along its length direction. The fixing plate drives the fixing rod to rotate to lock the fixing blocks into the corresponding slots, thereby positioning the position of the fixing rod. The fixing plate is also provided with a locking member for locking the rotation of the fixing plate.

[0009] Preferably, a limiting plate is provided on the rear side of the brace body and at the position of the fixing rod. The limiting plate has a limiting hole. A limiting block is provided on the other side of the limiting plate, one end of which is inserted into the brace body. One end of the fixing rod is respectively set through the limiting block and the limiting plate.

[0010] The locking component includes a rod mounted on a fixed plate. The rotation of the fixed plate drives the rod to insert into the limiting hole, thereby locking the rotation of the fixed rod.

[0011] Preferably, the fixed plate is provided with a lever for driving the fixed plate to rotate.

[0012] Preferably, the fixing plate is made of an elastic material.

[0013] Preferably, the sidewalls opposite to the fixed blocks are provided with extrusion slopes.

[0014] Preferably, the fixing block is made of an elastic material.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. This utility model allows for the adjustment of the lengths of the sliding rod and the fixed rod by sliding the fixed rod within the sliding cavity and positioning it using a positioning component. Compared to existing designs, this customized early orthodontic appliance based on 3D-printed TPU filament additive manufacturing eliminates the need to replace gap-maintaining rods of different lengths when the sliding rod and the fixed rod are installed at different positions on the aligner body. This makes it more convenient and practical in actual use.

[0017] 2. In order to prevent the fixing plate from rotating and causing the fixing block to slide out of the groove, thus releasing the fixing rod from its position in the sliding cavity, this utility model uses a locking component to lock the rotation of the fixing plate, preventing the fixing plate from rotating and thus avoiding accidental rotation of the fixing plate. Attached Figure Description

[0018] Figure 1 This is one of the overall structural schematic diagrams of a customized early orthodontic appliance based on 3D printing TPU filament additive manufacturing in this utility model.

[0019] Figure 2This is a schematic diagram of the structure of the sliding rod and fixing rod installed on the dental brace body in this utility model.

[0020] Figure 3 This is a schematic diagram of the structure of the brace body in this utility model.

[0021] Figure 4 This is a schematic diagram of the structure in this utility model where the fixing rod is installed on the sliding rod.

[0022] Figure 5 This is a schematic diagram of the structure of the slide plate, slider, and slide bar in this utility model.

[0023] Figure 6 This is an exploded view of the limiting plate on the fixing rod in this utility model.

[0024] The meanings of the labels in the diagram are as follows:

[0025] 100. Braces body; 101. Tooth socket; 110. Slide plate; 111. Slide bar; 120. Fixing bar;

[0026] 200. Fixing plate; 201. Paddle; 210. Limiting plate;

[0027] 401. Slider; 410. Fixing block; 421. Slide groove; 422. Groove opening; 430. Limiting block; 441. Limiting hole;

[0028] 501. Sliding cavity;

[0029] 600, Insert rod. Detailed Implementation

[0030] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings and embodiments. It should be understood that the embodiments are merely illustrative of this utility model and are not intended to limit it.

[0031] The following is in conjunction with the appendix Figures 1-6 This embodiment will be described in further detail.

[0032] like Figure 1As shown, this embodiment of a customized early orthodontic appliance based on 3D printed TPU filament additive manufacturing includes an orthodontic appliance body 100. The orthodontic appliance body 100 has a tooth groove 101 for tooth insertion. A slide plate 110 is provided on the front side of the orthodontic appliance body 100. A slider 401 with one end inserted into the orthodontic appliance body 100 is provided on the slide plate 110. A slide rod 111 with one end inserted into the tooth groove 101 is provided on the slider 401. A sliding cavity 501 with one end open is provided in the slide rod 111. A fixing plate 200 is provided on the rear side of the orthodontic appliance body 100. A fixing rod 120 with one end inserted into the sliding cavity 501 is provided on the fixing plate 200. A positioning component is provided on the slide rod 111. The positioning component is used to position the fixing rod 120 in the sliding cavity 501 and realize the adjustment of the length of the fixing rod 120.

[0033] In this embodiment, based on the location of the patient's missing tooth, the missing tooth is located on the brace body 100. Then, the sliding plate 110 is placed against the front side of the brace body 100, and one end of the sliding rod 111 is inserted into the tooth socket 101. The fixing plate 200 is placed against the rear side of the brace body 100, and one end of the fixing rod 120 is inserted into the tooth socket 101. The fixing rod 120 in the tooth socket 101 is then inserted into the corresponding sliding cavity 501. At this time, the fixing rod 120 in the sliding cavity 501 is positioned by the positioning component, realizing the installation of the sliding rod 111 and the fixing rod 120 in the tooth socket 101. When the patient wears the brace body 100 on their teeth, the sliding rod 111 and the fixing rod 120 respectively abut against the teeth on both sides of the missing tooth. By limiting the teeth on both sides of the missing tooth with the sliding rod 111 and the fixing rod 120, it is possible to prevent the teeth on both sides of the missing tooth from tilting towards the missing tooth, thus affecting the growth of new teeth from the missing tooth.

[0034] The slide bar 111 is fixedly installed on the slider 401, the slider 401 is fixedly installed on the slide plate 110, and the fixing rod 120 is fixedly installed on the fixing plate 200. When the fixing rod 120 is installed in the slide cavity 501 through the positioning component, the slide plate 110 and the fixing plate 200 abut against the side wall of the brace body 100, thereby preventing the slide bar 111 and the fixing rod 120 from sliding out from one side of the brace body 100.

[0035] In this design, the fixed rod 120 slides within the sliding cavity 501, and the position of the fixed rod 120 after sliding is positioned by the positioning component, thereby adjusting the length of the slide rod 111 and the fixed rod 120. Compared with existing designs, this customized early orthodontic appliance based on 3D printed TPU filament additive manufacturing does not require the replacement of gap maintenance rods of different lengths when the slide rod 111 and the fixed rod 120 are installed at different positions on the aligner body 100. It is more convenient to use and has better practicality.

[0036] In actual use, the braces body 100 is made by adding TPU filament using a 3D printer. Through 3D printing technology, the braces body 100 can be customized to fit the teeth according to the patient's dental arch condition, thereby reducing the manufacturing difficulty.

[0037] like Figure 1-6 As shown, in this embodiment, a corresponding fixing block 410 is provided on the fixing rod 120 located in the sliding cavity 501;

[0038] The positioning component includes a sliding groove 421 disposed on the sliding rod 111 and opposite to it. The sliding groove 421 is arranged along the length direction of the sliding rod 111. The fixing blocks 410 on the fixing rod 120 are respectively inserted into the corresponding sliding grooves 421. Multiple slots 422 are opened on one side wall of the sliding groove 421 along its length direction. The fixing plate 200 drives the fixing rod 120 to rotate to insert the fixing blocks 410 into the corresponding slots 422, thereby positioning the position of the fixing rod 120. The fixing plate 200 is also provided with a locking member for locking the rotation of the fixing plate 200.

[0039] In this embodiment, by setting up the fixing block 410, the sliding groove 421, the slot 422 and the locking member, the fixing block 410 is fixedly installed on the fixing rod 120. When the sliding rod 111 and the fixing rod 120 are adjusted to a suitable length, the fixing plate 200 rotates through the fixing rod 120 to drive the fixing block 410 to be inserted into the corresponding slot 422, thereby achieving the positioning of the fixing rod 120 in the sliding cavity 501.

[0040] In order to prevent the fixing plate 200 from rotating accidentally, causing the fixing block 410 to slide out of the slot 422 and the fixing rod 120 to be released from its position in the sliding cavity 501, the rotation of the fixing plate 200 is locked by the locking member, so that the fixing plate 200 cannot rotate, thereby avoiding the accidental rotation of the fixing plate 200.

[0041] Among them, the slider 401 on the slide plate 110 is square. When the slider 401 is inserted into the brace body 100, the slide plate 110 cannot rotate, thereby preventing the slide plate 110 from accidentally rotating the slide rod 111 and causing the fixing block 410 to slide out of the slot 422.

[0042] The fixing block 410 is made of elastic material. When one end of the fixing rod 120 is inserted into the sliding cavity 501, the fixing plate 200 can deform, so that when one end of the fixing rod 120 is inserted into the sliding cavity 501, the fixing block 410 can be inserted into the corresponding sliding groove 421.

[0043] The fixing block 410 has a pressing slope on its opposite side wall. When one end of the fixing rod 120 is inserted into the sliding cavity 501, the pressing slope makes it easier for the fixing block 410 to deform, thus making it easier for the fixing block 410 to be inserted into the corresponding sliding groove 421.

[0044] In actual use, when the locking member releases the locking of the fixing plate 200, the fixing block 410 is rotated out of the groove 422 by the fixing plate 200. When the fixing plate 200 is pulled outward, the fixing plate 200 drives the fixing rod 120 to move out of the sliding cavity 501. At this time, the fixing block 410 is deformed by squeezing the inclined surface, so that the fixing block 410 can slide out of the sliding groove 421, that is, the fixing rod 120 slides out of the sliding cavity 501, thereby releasing the installation of the sliding rod 111 and the fixing rod 120 on the dental brace body 100.

[0045] like Figure 1-6 As shown, in this embodiment, a limiting plate 210 is provided on the rear side of the brace body 100 and at the position of the fixing rod 120. The limiting plate 210 is provided with a limiting hole 441. A limiting block 430 is provided on the other side of the limiting plate 210, one end of which is inserted into the brace body 100. One end of the fixing rod 120 is respectively provided through the limiting block 430 and the limiting plate 210.

[0046] The locking component includes a rod 600 disposed on the fixing plate 200. The rotation of the fixing plate 200 drives the rod 600 to be inserted into the limiting hole 441, thereby locking the rotation of the fixing rod 120.

[0047] In this embodiment, by setting up the limiting plate 210, the limiting hole 441, the limiting block 430 and the insertion rod 600, the insertion rod 600 is fixedly installed on the fixed plate 200 and the limiting block 430 is fixedly installed on the limiting plate 210. When the fixed plate 200 rotates and drives the fixed block 410 to be inserted into the corresponding slot 422, the insertion rod 600 on the fixed plate 200 will be inserted into the limiting hole 441, thereby locking the position of the fixed plate 200 after rotation.

[0048] The fixing plate 200 is made of an elastic material, such as medical silicone. When the fixing plate 200 is driven to rotate, one end of the fixing plate 200 needs to be lifted so that the insertion rod 600 can be inserted into the limiting hole 441 after the fixing plate 200 has rotated.

[0049] When it is necessary to release the lock on the fixing plate 200, one end of the fixing plate 200 is lifted up so that the insertion rod 600 slides out from the limiting hole 441, thereby releasing the lock on the fixing plate 200. At this time, the fixing plate 200 can continue to be driven to rotate.

[0050] The fixed plate 200 is fixedly mounted with a lever 201 for driving the fixed plate 200 to rotate. The lever 201 makes it easy to lift one end of the fixed plate 200 and also makes it easy to drive the fixed plate 200 to rotate.

[0051] In actual use, the limiting block 430 is square. When the limiting plate 210 is inserted into the brace body 100 through the limiting block 430, the limiting plate 210 cannot rotate, thereby preventing the limiting plate 210 from rotating accidentally and causing the locking fixing plate 200 to rotate, thus affecting the actual use.

[0052] Working principle: First, locate the missing tooth on the brace body 100. Then, place the slide plate 110 against the front side of the brace body 100 and insert the slide bar 111 into the tooth socket. Next, place the fixation plate 200 against the rear side of the brace body 100 and insert one end of the fixation rod 120 into the sliding cavity 501. At this time, use the pry bar 201 to lift one end of the fixation plate 200 and drive the fixation plate 200 to rotate, so that the fixation block 410 on the fixation rod 120 is engaged in the corresponding slot 422. Then, insert the insertion rod 600 into the limiting hole 441. Finally, the patient puts the brace body 100 on the teeth. The slide bar 111 and the fixation rod 120 are located on both sides of the tooth gap. By limiting the teeth on both sides of the tooth gap with the slide bar 111 and the fixation rod 120, the teeth on both sides of the tooth gap can be prevented from tilting towards the tooth gap and affecting the growth of new teeth from the gap.

[0053] In summary, the above description is only a preferred embodiment of the present utility model. All equivalent changes and modifications made within the scope of the patent application of the present utility model shall fall within the scope of the patent of the present utility model.

Claims

1. A customized early orthodontic appliance based on 3D-printed TPU filament additive manufacturing, comprising a brace body (100), characterized in that: The brace body (100) has a tooth groove (101) for teeth to be inserted. The front side of the brace body (100) has a slide plate (110). The slide plate (110) has a slider (401) with one end inserted into the brace body (100). The slider (401) has a slide rod (111) with one end inserted into the tooth groove (101). The slide rod (111) has a sliding cavity (501) with one end open. The rear side of the brace body (100) has a fixing plate (200). The fixing plate (200) has a fixing rod (120) with one end inserted into the sliding cavity (501). The slide rod (111) has a positioning component. The positioning component is used to position the fixing rod (120) in the sliding cavity (501) and adjust the length of the fixing rod (120).

2. The customized early orthodontic appliance based on 3D printing TPU filament additive manufacturing according to claim 1, characterized in that: A corresponding fixing block (410) is provided on the fixing rod (120) located in the sliding cavity (501). The positioning component includes a sliding groove (421) disposed on the sliding rod (111) and opposite to it. The sliding groove (421) is arranged along the length direction of the sliding rod (111). The fixing blocks (410) on the fixing rod (120) are respectively inserted into the corresponding sliding grooves (421). Multiple slots (422) are opened on one side wall of the sliding groove (421) along its length direction. The fixing plate (200) drives the fixing rod (120) to rotate to insert the fixing blocks (410) into the corresponding slots (422) to realize the positioning of the fixing rod (120). The fixing plate (200) is also provided with a locking member for locking the rotation of the fixing plate (200).

3. The customized early orthodontic appliance based on 3D printing TPU filament additive manufacturing according to claim 2, characterized in that: A limiting plate (210) is provided on the rear side of the brace body (100) and at the position of the fixing rod (120). The limiting plate (210) is provided with a limiting hole (441). A limiting block (430) is provided on the other side of the limiting plate (210), one end of which is inserted into the brace body (100). One end of the fixing rod (120) is respectively set through the limiting block (430) and the limiting plate (210); The locking component includes a rod (600) disposed on a fixed plate (200). The fixed plate (200) rotates to drive the rod (600) to insert into the limiting hole (441) to lock the rotation of the fixed rod (120).

4. The customized early orthodontic appliance based on 3D printing TPU filament additive manufacturing according to claim 3, characterized in that: The fixed plate (200) is provided with a lever (201) for driving the fixed plate (200) to rotate.

5. A customized early orthodontic appliance based on 3D printing TPU filament additive manufacturing according to claim 3, characterized in that: The fixing plate (200) is made of elastic material.

6. A customized early orthodontic appliance based on 3D printing TPU filament additive manufacturing according to claim 2, characterized in that: The side walls opposite to the fixed block (410) are provided with extrusion slopes.

7. A customized early orthodontic appliance based on 3D printing TPU filament additive manufacturing according to claim 6, characterized in that: The fixing block (410) is made of elastic material.

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