TW202034859A - Anchorage screw extension plate - Google Patents

Abstract

An anchorage screw extension plate is configured for matching the anchorage screw and includes an adjust-fixed portion and a first cantilever. The adjust-fixed portion further includes a plane, an adjusting hole located on the plane, a limit through slot located on the plane and connected to the adjusting hole, a fixing hole located on the plane and connected to the limit through slot and a side-fixed structure. The diameter of the adjusting hole is greater than that of the head portion of the anchorage screw and the diameter of the fixing hole is between those of the head portion and the neck portion of the anchorage screw. The first cantilever is provided with a plurality of first sets of grooves for the elastic device. The anchorage screw extension plate of the present creation is not only easy to install but also to adjust the angle.

Description

Corrective nail extension board

The present invention relates to an orthodontic nail extension board; and in particular, it relates to an orthodontic nail extension board for orthodontics.

With the improvement of living standards and the advancement of medical technology, people not only need to live healthily, but also become more confident. Most people believe that having a neat dentition is also one of the sources of becoming more confident. However, many people are troubled by irregular teeth caused by congenital or acquired factors. Irregular teeth not only affect the beauty of the face, but also make people lack self-confidence. Furthermore, irregular teeth are more likely to lead to the health of teeth and periodontal tissues. Therefore, many people use orthodontic techniques to correct irregular teeth into a neat row of teeth. In addition, orthodontics can also extend the life of teeth.

In general orthodontics, doctors will use orthodontic nails to assist in orthodontic treatment. As shown in Figure 1, the doctor finds a position in the oral cavity that can achieve the best traction effect and implants the correction nail 5 as an anchor source. At the same time, the elastic device 2 such as a spring, elastic chain or rubber band exerts a pulling force to traction. Crooked teeth. However, in the process of traction, the inclination angle and position of the teeth will continue to change with the treatment time. Therefore, the corrective nail implanted by the doctor at the beginning cannot achieve the best traction effect, and must find another one that can achieve the best traction effect. Correction nails are implanted in positions with good traction effect. Due to the limited space in the oral cavity, the position where the correction nail can be implanted is also limited. In addition, If the doctor cannot find the position where the best traction effect can be achieved, the skewed teeth cannot receive effective traction effect.

In the prior art, a correction device 9 has been developed to be buckled on the correction nail (as shown in Figure 2). The correcting device 9 can achieve the best traction effect of the elastic device 2 through different installation directions and angles. Since the installation hole of the correction device is not a through hole, and because the diameter of the general correction nail is only 1.0mm to 2.3mm, when the correction device is installed on the correction nail, the installation hole of the correction device is not easy to align with the correction nail The joint part to make installation more difficult. In addition, when the angle at which the corrective device is installed on the corrective nail cannot achieve the best traction effect, the corrective device must be removed from the corrective nail, and the corrective device must be adjusted to the required angle before being buckled on the corrective nail . It can be seen that no matter when installing or adjusting the angle of the correction device, it is not easy to install and the steps required are complicated.

Therefore, it is necessary to develop an orthodontic device that can be installed and adjusted more easily to solve the above-mentioned problems.

One category of the present invention is to provide a correction nail extension plate to solve the problems of the prior art.

According to a specific embodiment of the present invention, the orthodontic nail extension plate can be used with orthodontic nails for orthodontics. The correction nail extension plate includes an adjusting and fixing part and a first cantilever, and the adjusting and fixing part further includes a plane, an adjusting hole, a limiting slot, a fixing hole, and a side fixing structure. The adjustment hole is located on a plane, and its diameter is larger than the diameter of the head of the mushroom head of the correction nail. The limit slot is located on the plane and is adjacent to and communicates with the adjustment hole. The inner wall of at least one side of the limit slot extends toward the center of the limit slot and protrudes a limit part. The width of the limit slot is smaller than the neck The diameter. Fixed hole position On the plane, adjacent to and connected with the limiting slot, the diameter of which is between the diameter of the head of the mushroom-shaped head of the correction nail and the diameter of the neck. The side fixing structure extends vertically outward from the outer edge of the plane, which forms a set space connected with the adjustment hole and the fixing hole, and the width of the set space corresponds to the width of the correction nail base so that the nail base can be locked on the side Edge fixed structure. The first cantilever is connected to the adjusting and fixing part, and a plurality of first attachment grooves are provided on the first cantilever for attachment of at least one elastic device.

In a specific embodiment, the side fixing structure further includes a first substructure and a second substructure opposite to each other. A sleeve space is formed between the first substructure and the second substructure, and the distance between the first substructure and the second substructure corresponds to the width of the nail base.

In a specific embodiment, the opening directions of the plurality of first sets of attachment grooves provided on the first cantilever are perpendicular to the opening directions of the adjusting hole and the fixing hole.

In a specific embodiment, the material of the corrective nail extension plate proposed by the present invention is selected to be stainless steel, titanium alloy or a metal compatible with the human body.

In a specific embodiment, the correction nail extension plate further includes a second cantilever, which is connected to the first cantilever and forms a first angle with the first cantilever. The second cantilever is provided with a plurality of second attachment grooves for attaching at least one elastic device.

In a specific embodiment, the opening directions of the plurality of second sets of attachment grooves provided on the second cantilever are perpendicular to the opening directions of the adjusting hole and the fixing hole.

In a specific embodiment, the extension directions of the second cantilever and the first cantilever are parallel to adjust the plane of the fixing portion.

In another specific embodiment, the extending direction of the first cantilever is parallel to the plane of the adjustment fixing portion, and the extending direction of the second cantilever forms a second angle with the plane.

In a specific embodiment, the corrective nail extension plate provided by the present invention further includes It includes a third cantilever, which is connected to the second cantilever and forms a third angle with the second cantilever. The third cantilever is provided with a plurality of third attachment grooves for attachment of at least one elastic device.

In a specific embodiment, at least two of the plurality of first sets of attachment grooves provided on the first cantilever are provided in relative positions on the first cantilever.

In a specific embodiment, the correction nail extension plate provided by the present invention further includes a fourth cantilever, the fourth cantilever is connected to the adjustment fixing portion, and the fourth cantilever is provided with a plurality of fourth sets of attachment grooves for at least one elastic device to be attached.

In summary, the correction nail extension plate of the present invention is not only easier to install, but also easier to adjust the angle.

1. 1', 1”, 1'''‧‧‧Corrective nail extension plate

12‧‧‧Adjust the fixed part

17‧‧‧Fourth cantilever

121‧‧‧Plane

172‧‧‧Fourth set with groove

122‧‧‧Adjustment hole

2‧‧‧Elastic device

123‧‧‧fixing hole

5, 5’, 5”, 5'''‧‧‧Corrective nail

124‧‧‧Side fixed structure

51‧‧‧nail body

1241‧‧‧First substructure

52‧‧‧Nail

1242‧‧‧Second substructure

521‧‧‧Nail seat plane

125‧‧‧Set up space

53‧‧‧Mushroom head

126‧‧‧Limiting slot

531‧‧‧Neck

1261‧‧‧Limiting part

532‧‧‧Head

14‧‧‧First cantilever

9‧‧‧Correcting device

141‧‧‧The first set with groove

70‧‧‧Skewed teeth

15‧‧‧Second Cantilever

80‧‧‧Protruding teeth

152‧‧‧Second set with groove

a ₁ ‧‧‧First angle

16‧‧‧Third Cantilever

a ₂ ‧‧‧ second angle

162‧‧‧The third set with groove

a ₃ ‧‧‧ third angle

Figure 1 is a schematic diagram showing the prior art orthodontics.

Figure 2 is a schematic diagram showing the prior art orthodontics.

Fig. 3 is a schematic diagram showing the structure of a correction nail extension plate according to a specific embodiment of the present invention.

FIG. 4 is a schematic diagram showing the structure of the correction nail matching the correction nail extension plate of FIG. 3.

Figure 5 is a schematic diagram showing the shape of the base of different correction nails.

6 is a schematic diagram showing the combination of the corrective nail extension plate and the corrective nail according to FIG. 3.

Fig. 7a is a top view of the extension plate of the correction nail shown in Fig. 6;

Fig. 7b is a cross-sectional view according to the line A-A in Fig. 7a.

Fig. 8 is a schematic diagram showing the structure of a correction nail extension plate according to another embodiment of the present invention.

Fig. 9 is a schematic diagram showing the structure of a corrective nail extension plate according to various embodiments of the present invention.

FIG. 10 is a schematic diagram showing the structure of a correction nail extension plate according to another embodiment of the present invention.

Fig. 11 is a schematic diagram showing the application of the orthodontic nail extension plate of Fig. 10 to orthodontics.

Fig. 12 is a schematic diagram showing the structure of a correction nail extension plate according to another embodiment of the present invention.

Fig. 13 is a schematic diagram showing the structure of a correction nail extension plate according to another embodiment of the present invention.

Fig. 14 is a schematic diagram showing the structure of a correction nail extension plate according to another embodiment of the present invention.

In order to make the advantages, spirit and features of the present invention easier and clearer to understand, the following will be detailed and discussed with specific embodiments and with reference to the accompanying drawings. It should be noted that these specific embodiments are only representative specific embodiments of the present invention, and the specific methods, devices, conditions, materials, etc. exemplified therein are not intended to limit the present invention or the corresponding specific embodiments. In addition, each device in the figure is only used to express its relative position and is not drawn according to its actual scale, which is explained first.

Please refer to Figure 3, Figure 4, Figure 5 and Figure 6 together. FIG. 3 is a schematic diagram showing the structure of the correction nail extension plate 1 according to a specific embodiment of the present invention. FIG. 4 is a schematic diagram showing the structure of the correction nail 5 matched with the correction nail extension plate 1 of FIG. 3. Fig. 5 is a schematic diagram showing the shape of the nail holder 52 of different correction nails 5', 5" and 5"'. Fig. 6 is a schematic diagram showing the combination of the correction nail extension plate 1 and the correction nail 5 according to Fig. 3. The present invention A specific embodiment of an orthodontic nail extension plate 1 can be used with an orthodontic nail 5 for orthodontics, wherein the orthodontic nail 5 can include a nail body 51 and a nail seat 52 connecting the nail body 51, and a nail seat 52 is formed The mushroom-shaped head 53 includes a neck 531 of the connecting nail seat 52 and a connecting neck Part 531 is a head 532. As shown in FIG. 3, the correction nail extension plate 1 may include an adjusting and fixing portion 12 and a first cantilever 14. The adjusting and fixing portion 12 further includes a flat surface 121, an adjusting hole 122, a limiting slot 126, a fixing hole 123 and a side fixing structure 124. The adjustment hole 122 is located on the plane 121, and the diameter of the adjustment hole 122 is larger than the diameter of the head 532 of the mushroom head 53. The limit through slot 126 is located on the plane 121 and is adjacent to and communicates with the adjustment hole 122. The inner wall of at least one side of the limit through slot 126 extends toward the center of the limit through slot 126 to protrude a limit portion 1261. The width of the groove 126 is smaller than the diameter of the neck 531. The fixing hole 123 is located on the plane 121 and is adjacent to and partially overlaps the adjustment hole 122. In addition, the diameter of the fixing hole 123 is between the diameter of the head 532 of the mushroom head 53 and the diameter of the neck 531. The side fixing structure 124 extends vertically outward from the outer edge of the plane 121. The side fixing structure 124 forms a sleeve space 125 connected with the adjustment hole 122 and the fixing hole 123, and the width of the sleeve space 125 corresponds to the width of the nail base 52 The nail base 52 can be engaged with the side fixing structure 124. The first cantilever 14 is connected to the adjusting and fixing portion 12, and the first cantilever 14 is provided with a plurality of first attachment grooves 141 for at least one elastic device to be attached.

The side fixing structure 124 of the correction nail extension plate 1 further includes a first substructure 1241 and a second substructure 1242 opposite to each other. The first substructure 1241 and the second substructure 1242 form the aforementioned sleeve space 125 . The opening directions of the plurality of first set of attachment grooves 141 provided on the first cantilever 14 are perpendicular to the opening directions of the adjusting hole 122 and the fixing hole 123. Furthermore, at least two of the plurality of first set of attachment grooves 141 are disposed at the relative positions of the first cantilever 14, and the two first set of attachment grooves 141 on the rightmost side are formed at positions opposite to each other as shown in FIG. .

In this embodiment, the nail seat 52 of the correction nail 5 further includes a nail seat plane 521 connected to the neck 531 of the mushroom-shaped head 53, and the diameter of the head 532 of the mushroom-shaped head 53 is larger than the neck of the mushroom-shaped head 53 The diameter of section 531. As shown in Figure 5, the nail bases 52', 52" and 52"' of the correction nails 5', 5" and 5'" The shape of can be selected from quadrilateral, hexagon, octagon, or even-numbered polygons. One side of the polygon and its opposite side can form a distance, which is the width of the aforementioned nail seat 52, and the width of the nail seat 52 The width is larger than the diameter of the adjustment hole 122 of the correction nail extension plate 1.

In practical applications, since the diameter of the adjustment hole 122 of the correction nail extension plate 1 is larger than the diameter of the head 532 of the mushroom head 53 of the correction nail 5, the adjustment hole 122 can be inserted into the correction nail from one side of the plane 121 5 of the mushroom head 53. In addition, since the width of the nail holder 52 is greater than the diameter of the adjustment hole 122, the correcting nail extension plate 1 can be maintained on the nail holder plane 521 without sliding down to the nail body 51. Thereby, the correction nail extension plate 1 can be adjusted to any angle along the direction parallel to the nail seat plane 521. Therefore, the correction nail extension plate 1 of the present invention can be directly attached to the correction nail 5 to adjust the angle to find the best traction position.

Please refer to Figure 3, Figure 7a and Figure 7b. FIG. 7a is a top view of the corrective nail extension plate 1 shown in FIG. 6. Fig. 7b is a cross-sectional view according to the line A-A in Fig. 7a. When the correction nail extension plate 1 determines the installation angle, the correction nail extension plate 1 can be translated along the determined installation angle to move the fixing hole 123 to the neck 531 of the mushroom head 53. Furthermore, when the correction nail extension plate 1 moves in translation, the limiting slot 126 first contacts the neck 531 of the mushroom head 53, and then the correction nail extension plate 1 continues to translate to move the fixing hole 123 to the neck of the mushroom head 53 The portion 531 allows the nail base 52 to move relatively to be engaged with the sleeve space 125 to fix the correction nail extension plate 1. Since the width of the limiting piercing groove 126 is smaller than the diameter of the neck 531 of the mushroom-shaped head 53, it is necessary to apply a large external force so that the neck 531 of the mushroom-shaped head 53 can forcibly pass through the limiting piercing groove 126 to extend the correction nail The fixing hole 123 of the plate 1 is moved to the neck 531 of the mushroom-shaped head 53 to be fixed on the corrective nail 5. In addition, when the neck 531 of the corrective nail 5 is located in the fixing hole 123, due to the limit penetration groove 126 The width of φ is smaller than the diameter of the neck portion 531, and the limiting portion 1261 will block the neck portion 531 so that it cannot be easily separated from the fixing hole 123 of the correction nail extension plate 1 to the adjustment hole 122. In this specific In the embodiment, the inner walls on both sides of the limiting slot 126 respectively extend toward the center of the limiting slot 126 to protrude the limiting portion 1261 (as shown in FIG. 3), which is a bilaterally retracted structure. Since one side and the opposite side of the shape of the nail base 52 are respectively parallel and abut the contact surfaces of the first substructure 1241 and the second substructure 1242 of the side fixing structure 124, the correction nail extension plate 1 can be The installation angle is fixed on the correction nail 5. In addition, since the diameter of the fixing hole 123 is smaller than the diameter of the head 532 of the mushroom-shaped head 53, the corrective nail extension plate 1 will not detach from above the nail seat plane 521.

When the correction nail extension plate 1 needs to readjust its angle, the correction nail extension plate 1 can be moved along the original angle and then reversely translated to move the adjustment hole 122 to the neck 531 of the mushroom-shaped head 53. At this time, the nail seat 52 is separated from the side The side fixing structure 124 is sleeved in the space and the neck 531 of the mushroom-shaped head 53 passes through the limiting slot 126 again, and the correction nail extension plate 1 becomes an adjustable angle state. Therefore, the correction nail extension plate 1 of the present invention does not need to be detached from the correction nail 5, and can be directly attached to the correction nail 5 for installation and angle adjustment.

As mentioned above, the limiting through slot 126 of this embodiment has a bilateral retractable structure, but it is not limited to this in practice. Please refer to Figure 8. FIG. 8 is a schematic diagram showing the structure of the correction nail extension plate 1 according to another embodiment of the present invention. In this specific embodiment, the limiting penetration slot 126 of the correction nail extension plate 1 is a unilaterally retracted structure, that is, the inner wall of one side of the limiting penetration slot 126 extends and protrudes toward the center of the limiting penetration slot 126 A limiting portion 1261 and a unilaterally retracted limiting slot 126 can also block the neck 531 of the mushroom-shaped head 53 so that it is not easily detached from the fixing hole 123 of the correction nail extension plate 1. The functions of other units in this specific embodiment are substantially the same as the functions of the corresponding units in the foregoing specific embodiments, so they will not be repeated here.

Please refer to Figure 6 again. After the correction nail extension plate 1 is fixed on the correction nail 5, one end of an elastic device such as a spring, an elastic chain or a rubber band can be attached to the first set of attachment groove 141, and the elasticity The other end of the device can be attached to the orthodontic appliance, so the elastic device has the effect of pulling the teeth. Furthermore, the elastic device can be attached to the two first sleeve attachment grooves 141 at the relative position on the first cantilever 14 at the same time to increase stability and reduce the probability of the elastic device falling off. Since the opening direction of the first set of attachment grooves 141 is perpendicular to the opening direction of the adjustment hole 122 and the fixing hole 123, in other words, the opening direction of the first set of attachment grooves 141 is parallel to the gums. Therefore, the elastic device is more easily attached to the first set of attachment grooves. One set with groove 141.

Please refer to Figure 9. Figure 9 is a schematic diagram showing the structure of the corrective nail extension plates 1', 1" and 1"' according to various embodiments of the present invention. As shown in Figure 9, the corrective nail extension plates 1', 1" and 1 The side fixing structures 124', 124" and 124''' of''' are in addition to the structure of the sleeve space 125 formed by the first substructure 1241 and the second substructure 1242 in the specific embodiment shown in FIG. 3 , It can also be formed by one of horseshoe-shaped, U-shaped or polygonal structures to form the sleeve space 125. Furthermore, the side fixing structure 124 can be arranged to correspond to the shape of the nail seat 52 of the correction nail 5. Therefore, when the correction nail extension plate 1 is fixed It can be firmer when correcting nail 5.

Please refer to Figure 10. FIG. 10 is a schematic diagram showing the structure of the correction nail extension plate 1 according to another embodiment of the present invention. As shown in FIG. 10, the difference between this embodiment and the previous embodiment is that the correction nail extension plate 1 of this embodiment further includes a second cantilever 15 connected to the first cantilever 14. A first angle a _{1 is} formed between the second cantilever 15 and the first cantilever 14, and the extension direction of the second cantilever 15 and the first cantilever 14 is parallel to the plane 121 of the adjustment fixing portion 12. In this embodiment, the second cantilever 15 can be swung to the left or right by the first cantilever 14, for example, as shown in the upper and lower figures in FIG. 10. Furthermore, the second cantilever 15 can be provided with a plurality of second sets of attachment grooves 152 for the elastic device to attach, and the opening directions of the second sets of attachment grooves 152 are perpendicular to the opening directions of the adjustment hole 122 and the fixing hole 123 . The function of the second set of attachment grooves 152 is the same as that of the first set of attachment grooves 141, and will not be repeated here. In addition, the other components of the correction nail extension plate 1 of this specific embodiment are substantially the same in structure and function as the corresponding components of the previous specific embodiment, so they will not be repeated here.

Please refer to Figure 11. 11 is a schematic diagram showing the application of the orthodontic nail extension plate 1 of FIG. 10 to orthodontics. Generally speaking, when the irregular dentition is more serious, the number of teeth to be corrected is also more. As shown in Fig. 11, if the patient’s oral cavity contains a skewed tooth 70 and a protruding tooth 80 that need to be corrected, the orthodontic nail 5 and the orthodontic nail extension plate 1 can be set at the positions in the figure. At this time, the orthodontic nail The first cantilever 14 of the extension plate 1 can cooperate with an elastic device 2 to pull the protruding teeth 80, and the second cantilever 15 cooperates with another elastic device 2 to pull the skewed teeth 70. Therefore, the orthodontic nail extension plate 1 can use the first cantilever 14 and the second cantilever 15 in conjunction with the elastic device 2 to simultaneously correct two teeth.

Please refer to Figure 12. FIG. 12 is a schematic diagram showing the structure of the correction nail extension plate 1 according to another embodiment of the present invention. In the specific embodiment of FIG. 10, the extension directions of the second cantilever 15 and the first cantilever 14 are both parallel to the plane 121 of the adjustment fixing portion 12. In contrast, as shown in FIG. 12, the extension direction of the first cantilever 14 in this embodiment is parallel to the plane 121 of the adjustment fixing portion 12, and the extension direction of the second cantilever 15 forms a second angle a ₂ with the plane 121. In practical applications, the irregular dentition is not only horizontally skewed, but also misaligned back and forth, and because of the limited space in the oral cavity, the corrective nail extension plate 1 of the present invention can be constructed with different angles. Orthodontics from multiple angles.

Please refer to Figure 13 and Figure 14. FIG. 13 is a schematic diagram showing the structure of the correction nail extension plate 1 according to another embodiment of the present invention. FIG. 14 is a schematic diagram showing the structure of the correction nail extension plate 1 according to another embodiment of the present invention. As shown in FIG. 13, the difference between this embodiment and the previous embodiment is that the correction nail extension plate 1 may further include a third cantilever 16 connected to the second cantilever 15, and a third cantilever 16 and the second cantilever 15 are formed between The third angle a ₃ . Further, the third cantilever 16 is provided with a plurality of third attachment grooves 162 for the elastic device to attach. In addition, as shown in FIG. 14, the difference between this specific embodiment and the foregoing specific embodiments is that the correction nail extension plate 1 further includes a fourth cantilever 17 connected to the adjustment fixing portion 12, and the fourth cantilever 17 is provided with a plurality of fourth sets of attachments. The groove 172 is provided for the elastic device to be attached. The functions of the aforementioned third set of attachment grooves 162 and the fourth set of attachment grooves 172 are the same as those of the first set of attachment grooves 141, and will not be repeated here. On the other hand, the direction of the third angle a ₃ may be the direction of the first angle a ₁ or the second angle a ₂ . Therefore, through the various types of the aforementioned orthodontic nail extension plate 1, it is possible to perform orthodontics at various angles according to various conditions.

Since the elastic device needs to maintain a certain degree of tension when pulling the teeth, the orthodontic nail extension plate 1 in the foregoing specific embodiments must have a certain strength without deformation or damage due to the tension. In a specific embodiment, the material of the corrective nail extension plate 1 proposed in the present invention can be selected from stainless steel, titanium alloy, or a metal compatible with the human body. In another specific embodiment, the material of the corrective nail extension plate 1 proposed by the present invention can be selected to be plastic. In yet another specific embodiment, the material of the corrective nail extension plate 1 proposed by the present invention can be a combination of metal and plastic.

In summary, by adjusting the fixing part and the first cantilever, the correction nail extension plate of the present invention is not only easier to install, but also easier to adjust the angle.

Through the detailed description of the preferred embodiments above, it is hoped that the characteristics and spirit of the present invention can be described more clearly, and the scope of the present invention is not limited by the preferred embodiments disclosed above. On the contrary, its purpose is to cover various changes and equivalent arrangements within the scope of the patent application for the present invention. Therefore, the scope of the patent application for the present invention should be interpreted in the broadest way based on the above description, so that it covers all possible changes and equivalent arrangements.

1‧‧‧Corrective nail extension plate

12‧‧‧Adjust the fixed part

122‧‧‧Adjustment hole

123‧‧‧fixing hole

124‧‧‧Side fixed structure

126‧‧‧Limiting slot

14‧‧‧First cantilever

141‧‧‧The first set with groove

5‧‧‧Corrective nail

52‧‧‧Nail

531‧‧‧Neck

532‧‧‧Head

Claims (11)

An orthodontic nail extension plate for cooperating with an orthodontic nail for orthodontics. The orthodontic nail includes a nail body and a nail seat connected to the nail body, and a mushroom-shaped head is formed on the nail seat. The mushroom-shaped head includes Connecting a neck of the nail seat and a head of the neck, the correction nail extension plate includes: an adjusting and fixing portion, further including: a plane; an adjustment hole located on the plane, the adjustment hole The diameter is greater than the diameter of the head of the mushroom-shaped head; a limiting slot is located on the plane and adjacent to and communicates with the adjustment hole, and the inner wall of at least one side of the limiting slot faces the limiting slot A limiting portion extends from the center, and the width of the limiting slot is smaller than the diameter of the neck; a fixing hole is located on the plane and adjacent to and communicates with the limiting slot, the diameter of the fixing hole is between Between the diameter of the head of the mushroom-shaped head and the diameter of the neck; and a side fixing structure extending perpendicularly outward from the outer edge of the plane, the side fixing structure is formed with the adjustment hole and the fixing A set of space connected by the hole, and the width of the set of space corresponds to the width of the nail holder so that the nail holder can be engaged in the side fixing structure; and a first cantilever connected to the adjusting and fixing part, the second A cantilever is provided with a plurality of first sets of attachment grooves for attachment of at least one elastic device. The correction nail extension plate according to item 1 of the scope of patent application, wherein the side fixing structure further includes a first substructure and a second substructure opposed to each other, and the first substructure and the second substructure are formed between The set space and the distance between the first substructure and the second substructure correspond to the width of the nail base. According to item 1 of the scope of patent application, the opening direction of the first set of attachment grooves is perpendicular to the opening direction of the adjustment hole and the fixing hole. According to the first item of the scope of patent application, the corrective nail extension plate is made of metal, plastic and a combination of the two. The correction nail extension plate according to item 1 of the scope of patent application further includes a second cantilever connected to the first cantilever, a first angle is formed between the second cantilever and the first cantilever, and a plurality of second cantilevers are arranged on the second cantilever At least one elastic device is attached to the sleeve groove. According to item 5 of the scope of patent application, the opening direction of the second set of attached grooves is perpendicular to the opening direction of the adjustment hole and the fixing hole. According to the 5th item of the scope of patent application, the extension plate of the correction nail, wherein the extension direction of the second cantilever and the first cantilever are parallel to the plane of the adjustment fixing part. According to the fifth item of the scope of patent application, the extension direction of the correction nail, wherein the extension direction of the first cantilever is parallel to the plane of the adjustment fixing portion, and the extension direction of the second cantilever forms a second angle with the plane. The correction nail extension plate according to item 5 of the scope of patent application further includes a third cantilever connected to the second cantilever, a third angle is formed between the third cantilever and the second cantilever, and a plurality of third sets are arranged on the third cantilever At least one elastic device is attached to the groove. The corrective nail extension plate according to item 1 of the scope of patent application, wherein the first sets of grooves are attached At least two of them are arranged at relative positions on the first cantilever. The correction nail extension plate according to the first item of the scope of patent application further includes a fourth cantilever connected to the adjusting and fixing part, and the fourth cantilever is provided with a plurality of fourth sets of attachment grooves for attaching at least one elastic device.

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