TWI682772B - 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

Orthopedic nail extension plate

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

With the improvement of living standards and the advancement of medical technology, people must not only live healthy, but also become more confident. Most people think that having a neat dentition is also one of the sources of becoming more confident. However, many people are troubled by irregular teeth due to innate or acquired factors. Irregular teeth will not only affect the appearance of the face, but also make people lack self-confidence. Furthermore, irregular teeth are more likely to cause healthy teeth and periodontal tissues. Therefore, many people use the orthodontic technique to correct irregular teeth into neat dentition. In addition, through orthodontics can also prolong the life of teeth.

In the general process of orthodontics, doctors use orthodontic nails to assist orthodontic treatment. As shown in Figure 1, the physician finds a position in the oral cavity that can achieve the best traction effect and implants the correction nail 5 as an anchor source, and at the same time, the elastic device 2 such as a spring, an elastic chain or a rubber band applies tensile force to traction Crooked teeth. However, in the process of traction, the inclination angle and position of the teeth will continuously change with the treatment time. Therefore, the corrective nail implanted by the physician at the beginning can no longer achieve the best traction effect, and another one must be found to achieve the most. Orthopedic nails are implanted in locations 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 physician cannot find the position where the best traction effect can be achieved, the skewed teeth cannot be effectively traction effected.

In the prior art, an orthodontic device 9 has been developed to buckle on the orthopedic nail (as shown in Figure 2). The correcting device 9 enables the elastic device 2 to achieve the best traction effect through different setting directions and angles. Because the installation hole of the correction device is not a through hole, and because the diameter of the general correction nail is only between 1.0mm and 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 To make installation difficult. In addition, when the angle of the correction device installed on the correction nail cannot achieve the best traction effect, the correction device must be detached from the correction nail, and the correction device is adjusted to the desired angle, and then buckled on the correction nail . It can be seen that the correcting device is less easy to install and the steps required are complicated when installing or adjusting the angle.

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

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

According to one embodiment of the present invention, the orthodontic nail extension plate can be used to match orthodontic nails for orthodontics. The straightening nail extension plate includes an adjustment and fixing portion and a first cantilever, and the adjustment and fixing portion further includes a flat surface, an adjustment hole, a limiting through 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-shaped 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 to project a limit portion. The width of the limit slot is less than the neck The diameter. Fixed holes On the plane and adjacent to and connected to the limiting slot, its diameter 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, and it forms a set space connected to the adjustment hole and the fixing hole, and the width of the set space corresponds to the width of the corrected nail base so that the nail base can be locked to the side Side fixed structure. The first cantilever is connected to the adjustment and fixing portion, and a plurality of first sets of attachment grooves are provided on the at least one elastic device for attachment.

In a specific embodiment, the side fixing structure further includes a first sub-structure and a second sub-structure 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 grooves provided on the first cantilever are perpendicular to the opening directions of the adjustment holes and the fixing holes.

In a specific embodiment, the material of the extension plate of the correction nail proposed by the present invention is stainless steel, titanium alloy, or a metal that is more compatible with the human body.

In a specific embodiment, the orthopedic nail extension plate further includes a second cantilever. The second cantilever 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 sets of attachment grooves for at least one elastic device to be attached.

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

In a specific embodiment, the extending 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 correction nail extension plate provided by the present invention further includes A third cantilever is included. The third cantilever 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 sets of attaching grooves for attaching at least one elastic device.

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

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

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

1. 1’, 1”, 1”’‧‧‧‧Screw extension plate

12‧‧‧Adjust the fixed part

17‧‧‧The fourth cantilever

121‧‧‧Plane

172‧‧‧The fourth set with groove

122‧‧‧Adjustment hole

2‧‧‧Elastic device

123‧‧‧Fixed hole

5, 5’, 5”, 5”'‧‧‧ corrective nail

124‧‧‧Side fixing structure

51‧‧‧ Nail

1241‧‧‧The first substructure

52‧‧‧ Nail holder

1242‧‧‧Second substructure

521‧‧‧Flat seat

125‧‧‧Set space

53‧‧‧ mushroom-shaped head

126‧‧‧Limit through slot

531‧‧‧ Neck

1261‧‧‧Limiting Department

532‧‧‧Head

14‧‧‧The first cantilever

9‧‧‧Correcting device

141‧‧‧The first set with groove

70‧‧‧skew teeth

15‧‧‧The second cantilever

80‧‧‧ prominent teeth

152‧‧‧Second set with groove

a ₁ ‧‧‧ first angle

16‧‧‧The third cantilever

a ₂ ‧‧‧ second angle

162‧‧‧The third set with groove

a ₃ ‧‧‧ third angle

FIG. 1 is a schematic diagram showing the orthodontics of the prior art.

FIG. 2 is a schematic diagram showing the orthodontics of the prior art.

FIG. 3 is a schematic structural diagram of an extension plate for corrective nails according to an embodiment of the present invention.

FIG. 4 is a schematic view showing the structure of the correction nail matched with the extension plate of the correction nail of FIG. 3.

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

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

7a is a top view of the extension plate of the correction nail according to FIG. 6.

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

FIG. 8 is a schematic structural diagram of a correction nail extension plate according to another embodiment of the present invention.

FIG. 9 is a schematic view showing the structure of a correction nail extension plate according to various embodiments of the present invention.

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

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

FIG. 12 is a schematic structural diagram of an extension plate for a correction nail according to another embodiment of the present invention.

FIG. 13 is a schematic structural diagram of an extension plate for a correction nail according to another embodiment of the present invention.

FIG. 14 is a schematic structural diagram of an extension plate for corrective nails according to yet another embodiment of the present invention.

In order to make the advantages, spirit and features of the present invention easier and clearer to understand, detailed descriptions and discussions will follow with specific embodiments and with reference to the accompanying drawings. It is worth noting 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, the devices in the figure are only used to express their relative positions and are not drawn according to their actual proportions.

Please refer to Figure 3, Figure 4, Figure 5 and Figure 6 together. FIG. 3 is a schematic structural diagram of a correction nail extension plate 1 according to an embodiment of the present invention. FIG. 4 is a schematic view 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 appearance of different corrective nails 5', 5" and 5"' nail base 52. Fig. 6 is a schematic diagram showing the combination of the corrective nail extension plate 1 and the corrective nail 5 according to Fig. 3. An orthodontic nail extension plate 1 of a specific embodiment can be used to cooperate with an orthodontic nail 5 for orthodontics, wherein the orthopedic nail 5 can include a nail body 51 and a nail base 52 connected to the nail body 51, and a nail base 52 is formed with Mushroom-shaped head 53, the mushroom-shaped head 53 includes a neck 531 connected to the nail base 52 and a neck 部 531 one head 532. As shown in FIG. 3, the orthosis extension plate 1 may include an adjustment and fixing portion 12 and a first cantilever 14. The adjusting and fixing part 12 further includes a plane 121, an adjusting hole 122, a limiting through 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-shaped head 53. The limiting 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 limiting through slot 126 extends toward the center of the limiting through slot 126 to project a limiting 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 with the adjusting 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 to 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 in 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 sets of attachment grooves 141 for at least one elastic device to cover.

The side fixing structure 124 of the orthopedic nail extension plate 1 further includes a first sub-structure 1241 and a second sub-structure 1242 opposite to each other, and the aforementioned enclosing space 125 is formed between the first sub-structure 1241 and the second sub-structure 1242 . The opening directions of the plurality of first grooves 141 provided on the first cantilever 14 are perpendicular to the opening directions of the adjustment holes 122 and the fixing holes 123. Furthermore, at least two of the plurality of first sets of attachment grooves 141 are provided at relative positions of the first cantilever 14, as shown in FIG. 3, the two rightmost sets of attachment grooves 141 are formed at positions opposite to each other .

In this specific embodiment, the nail base 52 of the orthopedic nail 5 further includes a nail base plane 521 connected to the neck 531 of the mushroom head 53, and the diameter of the head 532 of the mushroom head 53 is larger than the neck of the mushroom head 53 The diameter of the part 531. As shown in FIG. 5, the nail seats 52', 52" and 52"' of the corrective nails 5', 5" and 5'" The shape of can be selected from quadrilateral, hexagon, octagon, or even polygon, one side of the polygon and the opposite side can form a distance, this distance is the width of the aforementioned nail base 52, and the nail base 52 The width is larger than the diameter of the adjustment hole 122 of the extension plate 1 of the correction nail.

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 the side of the plane 121 5之菌状头53. In addition, since the width of the nail base 52 is larger than the diameter of the adjustment hole 122, the correction nail extension plate 1 can be kept above the nail base 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 base 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 optimal traction position.

Please refer to Figure 3, Figure 7a and Figure 7b. FIG. 7a is a top view of the correction nail extension plate 1 shown in 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 translate along the determined installation angle to move the fixing hole 123 to the neck 531 of the mushroom head 53. Further, when the orthodontic nail extension plate 1 is translated, the limiting slot 126 first contacts the neck 531 of the mushroom head 53, and then the orthodontic 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 and engage with the sleeve space 125 to fix the orthodontic nail extension plate 1. Since the width of the limiting slot 126 is smaller than the diameter of the neck 531 of the mushroom head 53, a large external force needs to be applied so that the neck 531 of the mushroom head 53 can be forced to pass through the limiting slot 126 to extend the correction nail The fixing hole 123 of the board 1 is moved to the neck 531 of the mushroom-shaped head 53 to be fixed on the orthopedic nail 5. In addition, when the neck 531 of the orthopedic nail 5 is located in the fixing hole 123, due to the limit through slot 126 The width is smaller than the diameter of the neck 531, and the limiting portion 1261 will block the neck 531 so that it is not easy to detach 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 through slot 126 respectively extend toward the center of the limiting through 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 nail base 52 are parallel and abut against the contact surfaces of the first sub-structure 1241 and the second sub-structure 1242 of the side fixing structure 124, the straightening nail extension plate 1 can 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 correction nail extension plate 1 will not be separated from above the nail seat plane 521.

When the correction nail extension plate 1 needs to be readjusted, the correction nail extension plate 1 can be translated in the reverse direction along the original angle to move the adjustment hole 122 to the neck 531 of the mushroom head 53. At this time, the nail holder 52 is separated from the side The space around the side fixing structure 124 and the neck 531 of the mushroom-shaped head 53 pass through the limiting slot 126 again, and the correction nail extension plate 1 becomes in an adjustable 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 slot 126 of this embodiment is a bilateral contraction structure, but in practice it is not limited to this. Please refer to Figure 8. FIG. 8 is a schematic structural diagram of an extension plate 1 for orthopedic nails according to another embodiment of the present invention. In this specific embodiment, the limiting penetration groove 126 of the correction nail extension plate 1 is a single-sided retracted structure, that is, the inner wall of one side of the limiting penetration groove 126 extends toward the center of the limiting penetration groove 126 A limiting portion 1261, a unilaterally retracted limiting slot 126 can also achieve the effect of blocking the neck 531 of the mushroom head 53 from being easily detached from the fixing hole 123 of the correction nail extension plate 1. The functions of the 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. When the extension plate 1 of the correction nail is fixed on the correction nail 5, one end of the elastic device such as a spring, an elastic chain or a rubber band can be sleeved on the first set of grooves 141, and the elastic force The other end of the device can be attached to the orthodontic appliance of the tooth. Therefore, the elastic device has the effect of pulling the tooth. Furthermore, the elastic device can be simultaneously attached to two first sets of attachment grooves 141 at relative positions on the first cantilever 14 to increase stability and reduce the chance of the elastic device falling off. Since the opening direction of the first set of attachment grooves 141 is perpendicular to the opening directions of the adjustment holes 122 and the fixing holes 123, in other words, the opening direction of the first set of attachment grooves 141 is parallel to the gums, so the elastic device is easier to attach to the first A set with groove 141.

Please refer to Figure 9. 9 is a schematic diagram showing the structure of the correction nail extension plates 1 ′, 1 ″ and 1 ″ according to various embodiments of the present invention. As shown in FIG. 9, the correction nail extension plates 1 ′, 1 ″ and 1 The'side fixing structures 124', 124' and 124'' are in addition to the structure of the nesting space 125 formed by the first sub-structure 1241 and the second sub-structure 1242 in the specific embodiment of Fig. 3 It can also be formed by a horseshoe, U-shaped or polygonal structure to form the encasing space 125. Furthermore, the side fixing structure 124 can be set to correspond to the shape of the nail base 52 of the orthopedic nail 5, so when the orthopedic nail extension plate 1 is fixed It can be stronger when the nail 5 is corrected.

Please refer to Figure 10. FIG. 10 is a schematic view showing the structure of an extension plate 1 for orthopedic nails according to another embodiment of the present invention. As shown in FIG. 10, this specific embodiment is different from the foregoing specific embodiment in that the orthopedic nail extension plate 1 of this specific 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 extending direction of the second cantilever 15 and the first cantilever 14 is parallel to the plane 121 of the adjusting and fixing portion 12. In this specific embodiment, the second cantilever 15 can be swung left or right by the first cantilever 14, as shown in the upper and lower figures in FIG. 10, for example. Furthermore, the second cantilever 15 may 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 holes 122 and the fixing holes 123 . The function of the second set of grooves 152 is the same as that of the first set of grooves 141, and will not be repeated here. In addition, the other components of the orthopedic nail extension plate 1 of this specific embodiment are substantially the same in structure and function as the corresponding components of the foregoing specific embodiment, so they will not be repeated here.

Please refer to Figure 11. FIG. 11 is a schematic diagram illustrating the application of the orthodontic nail extension plate 1 of FIG. 10 to orthodontics. Generally speaking, when the irregularity of the dentition is more serious, there are more teeth to be corrected. As shown in FIG. 11, if the patient’s oral cavity includes a skewed tooth 70 and a protruding tooth 80 that need to be corrected, the correction nail 5 and the correction nail extension plate 1 can be set at the positions in the figure. At this time, the correction 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 can cooperate with another elastic device 2 to pull the skewed teeth 70. Therefore, the orthodontic nail extension plate 1 can correct two teeth at the same time by the first cantilever 14 and the second cantilever 15 together with the elastic device 2.

Please refer to Figure 12. FIG. 12 is a schematic structural diagram of a correction nail extension plate 1 according to another embodiment of the present invention. In the specific embodiment of FIG. 10, the extending directions of the second cantilever 15 and the first cantilever 14 are both parallel to the plane 121 of the adjusting and fixing portion 12. In contrast, as shown in FIG. 12, the extending side of the first cantilever 14 in this embodiment is parallel to the plane 121 of the adjusting and fixing portion 12, and the extending direction of the second cantilever 15 forms a second angle a ₂ with the plane 121. In practical applications, due to not only horizontal skew, but also front-to-back misalignment, and limited space in the oral cavity, the correction nail extension plate 1 of the present invention can be structured with different angles. Orthodontics at multiple angles.

Please refer to Figure 13 and Figure 14. FIG. 13 is a schematic diagram showing the structure of an extension plate 1 for orthopedic nails according to another embodiment of the present invention. FIG. 14 is a schematic structural diagram of a correction nail extension plate 1 according to still another embodiment of the present invention. As shown in FIG. 13, this specific embodiment is different from the foregoing specific embodiment in that the orthosis 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 form a The third angle a ₃ . Furthermore, the third cantilever 16 is provided with a plurality of third sets of attachment grooves 162 for the elastic device to attach. In addition, as shown in FIG. 14, this specific embodiment is different from the foregoing specific embodiment in that the orthosis extension plate 1 further includes a fourth cantilever 17 connected to the adjusting and fixing portion 12, and the fourth cantilever 17 is provided with a plurality of fourth sets of attachments The groove 172 is provided by the elastic device. The functions of the aforementioned third set of grooves 162 and the fourth set of grooves 172 are the same as those of the first set of 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 various types of the aforementioned orthodontic nail extension plate 1, the orthodontics can be performed at various angles in accordance with various different conditions.

Since the elastic device needs to maintain a certain degree of pulling force when pulling the teeth, the orthodontic nail extension plate 1 in the foregoing specific embodiments must have a certain strength without being deformed or damaged due to the pulling force. In a specific embodiment, the material of the correction nail extension plate 1 proposed by the present invention can be stainless steel, titanium alloy, or a metal that is more compatible with the human body. In another specific embodiment, the material of the correction nail extension plate 1 proposed by the present invention may be plastic. In yet another specific embodiment, the material of the extension plate 1 of the present invention can be a combination of metal and plastic.

In summary, by adjusting the fixing portion 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.

With the above detailed description of the preferred embodiments, it is hoped that the features and spirit of the present invention can be described more clearly, rather than limiting the scope of the present invention with the preferred embodiments disclosed above. On the contrary, the purpose is to cover various changes and equivalent arrangements within the scope of the patent application of the present invention. Therefore, the scope of the patent application scope of the present invention should be interpreted broadly based on the above description, so that it covers all possible changes and equivalent arrangements.

1‧‧‧Straightening nail extension plate

12‧‧‧Adjust the fixed part

122‧‧‧Adjustment hole

123‧‧‧Fixed hole

124‧‧‧Side fixing structure

126‧‧‧Limit through slot

14‧‧‧The first cantilever

141‧‧‧The first set with groove

5‧‧‧ Correction nail

52‧‧‧ Nail holder

531‧‧‧ Neck

532‧‧‧Head

Claims (11)

An orthodontic nail extension plate is used to cooperate with an orthodontic nail for orthodontics. The orthopedic 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 The neck of the nail base and the head of the neck are connected. The extension plate of the correction nail includes: an adjustment fixing portion, further comprising: a plane; an adjustment hole located on the plane, the adjustment hole The diameter is larger than the diameter of the head of the mushroom-shaped head; a limiting through slot is located on the plane and is adjacent to and communicates with the adjustment hole, and the inner wall of at least one side of the limiting through slot faces the limiting through slot A limit portion extends from the center of the center, the width of the limit slot is smaller than the diameter of the neck; a fixing hole is located on the plane and is adjacent to and communicates with the limit 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 vertically outward from the outer edge of the plane, the side fixing structure forming the adjustment hole and the fixing A set space connected by the hole, and the width of the set space corresponds to the width of the nail seat so that the nail seat can be engaged in the side fixing structure; and a first cantilever is connected to the adjustment fixing part, the first A cantilever is provided with a plurality of first sets of attachment grooves for at least one elastic device to be attached. The extension plate for orthopedic nails according to item 1 of the patent application scope, wherein the side fixing structure further includes a first substructure and a second substructure opposed to each other, formed between the first substructure and the second substructure The set space, and the distance between the first sub-structure and the second sub-structure corresponds to the width of the nail base. According to the correction nail extension plate of claim 1, the opening direction of the first set of grooves is perpendicular to the opening direction of the adjustment hole and the fixing hole. According to the correction nail extension plate of claim 1, the material of the correction nail extension plate can be selected from one of metal, plastic and a combination of both. The extension plate for orthopedic nails according to item 1 of the patent application scope further includes a second cantilever connected to the first cantilever, a first angle is formed between the second cantilever and the first cantilever, and the second cantilever is provided with a plurality of second The covering groove is provided for covering at least one elastic device. According to the correction nail extension plate of claim 5, the opening direction of the second sets of grooves is perpendicular to the opening direction of the adjusting hole and the fixing hole. The extension plate for orthopedic nails according to item 5 of the patent application scope, wherein the extension directions of the second cantilever and the first cantilever are parallel to the plane of the adjustment fixing portion. According to the correction nail extension plate of claim 5, the extending direction of the first cantilever is parallel to the plane of the adjustment fixing part, and the extending direction of the second cantilever forms a second angle with the plane. The extension plate for orthopedic nails according to item 5 of the patent application scope further includes a third cantilever connected to the second cantilever, a third angle is formed between the third cantilever and the second cantilever, and the third cantilever is provided with a plurality of third sets The attaching groove is used for attaching at least one elastic device. Extending plate for orthopedic nails according to item 1 of the patent application scope, in which the first set has grooves At least two of them are arranged at relative positions on the first cantilever. The extension plate for corrective nails according to item 1 of the patent application scope further includes a fourth cantilever connected to the adjustment fixing portion. The fourth cantilever is provided with a plurality of fourth sets of attachment grooves for at least one elastic device to be attached.

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