JP2014138690A - Ingrown nail correcting tool - Google Patents

Abstract

Provided is a corrector that can be mounted without applying excessive force to the nail and can be appropriately used for correcting nails having different dimensions.
A left arm 2 having a hook 20 to a left side edge Na of a nail N, a right arm 2 having a hook 20 to a right side edge Nb of the nail N, and a left arm 2 and the right arm 2 and a fulcrum member 3 having a lower end portion as a contact portion 31b against the claw N. Each of the left arm 2 and the right arm 2 includes a forearm portion 21 and an upper arm portion 22 that are rotatably combined. The forearm portion 21 has a hook portion 20, and the upper arm portion 22 can be rotated to the base body 1. Are combined. The fulcrum member 3 is combined with the shaft body 30 so as to be able to advance and retract in the vertical direction with respect to the base body 1, and is combined with the shaft body 30 so as to be movable up and down to form a contact portion 31 b below the shaft body 30. A movable body 31 and a compression coil spring 32 interposed therebetween are provided.
[Selection] Figure 6

Description

  The present invention relates to an improvement of a correction tool that is attached to a nail that is a wound nail and is used to correct the nail to a normal state.

  There are two types of treatment for ingrown nails: surgery and correction. In recent years, correction has become the mainstream.

  As a correction tool for performing such correction, there is one in which hooks hooked on the side edge portions of the nails are arranged on the left and right sides of the base plate, and the vertical distance between the base plate and the hooks can be changed by screw means. (See Patent Documents 1 and 2)

  However, these conventional methods apply a correction force directly to the nail by screwing the screw means, and when the wound nail is corrected to some extent by the action of the correction force, the correction tool is dropped from the nail. It was something to let me. In addition, since the distance between the left and right hooks can be varied only within a certain range in Patent Document 1, and cannot be varied in Patent Document 2, these conventional methods use a single corrector to hold the nail. It was difficult to use for correcting nails with different dimensions in the left-right direction, i.e., nail size, nail thickness, and nail deformation.

U.S. Pat. No. 1,708,716 U.S. Pat. No. 1,772,130

  The main problem to be solved by the present invention is that this kind of curly nail corrector can be mounted without applying excessive force to the nail, and the left and right dimensions are different with a single corrector. It is in the point which makes it possible to use each appropriately for the correction of the nail.

In order to achieve the above object, in the present invention, from the first viewpoint, the curly nail correction tool, the base body,
A left arm with a hook on the left side edge of the nail at the free end;
A right arm with a hook on the right side edge of the nail at the free end;
A fulcrum member between the left arm and the right arm and having a lower end portion as a contact portion with the claw;
Each of the left arm and the right arm is combined so that the upper end of the left arm and the base body can rotate.
The fulcrum member is a shaft body combined with the base body so as to be able to advance and retract in the vertical direction, a movable body combined with the shaft body so as to be movable up and down, and forming the contact portion under the shaft body, An urging member for the movable body interposed between the movable body and the shaft body is provided.

  Hook the left arm hook on the left side edge of the nail, hook the right arm hook on the right side edge of the nail, When the member is operated to be screwed downward, the movable body is moved upward while accumulating the spring. The spring exerts a force in the direction away from the nail on the base body. This force increases the distance between the hook portion of the left arm and the hook portion of the right arm. The force of the direction which corrects a winding nail can be made to act on. Since such a force is provided by the urging member, the corrector can be attached to the nail in a manner that does not apply an excessive force to the nail. When the curled nail begins to be corrected, the left side edge and the right side edge of the nail are lifted and the distance between the two is increased, so that the distance between the base body and the nail is allowed to be increased. The urging force of the urging member that moves downward and acts on the nail gradually weakens, but the corrector does not fall off the nail. Since the correction tool configured in this manner applies the force to the nail by the left arm and the right arm each provided with a hook portion, the size in the left-right direction of the nail, that is, the size of the nail, the thickness of the nail The nail can be mounted as described above without being affected by the degree of deformation of the nail.

In order to achieve the above object, in the present invention, from the second viewpoint, the curly nail correction tool, the base body,
A left arm with a hook on the left side edge of the nail at the free end;
A right arm with a hook on the right side edge of the nail at the free end;
A fulcrum member between the left arm and the right arm and having a lower end portion as a contact portion with the claw;
The left arm and the right arm each have a forearm portion and an upper arm portion that are rotatably combined, and the forearm portion has the hook portion, and the upper arm portion is rotatably combined with a base body,
The fulcrum member is a shaft body combined with the base body so as to be able to advance and retract in the vertical direction, a movable body combined with the shaft body so as to be movable up and down, and forming the contact portion under the shaft body, An urging member for the movable body interposed between the movable body and the shaft body is provided.

  Hook the left arm hook on the left side edge of the nail, hook the right arm hook on the right side edge of the nail, When the member is operated to be screwed downward, the movable body is moved upward while accumulating the spring. The spring exerts a force in the direction away from the nail on the base body. This force increases the distance between the hook portion of the left arm and the hook portion of the right arm. The force of the direction which corrects a winding nail can be made to act on. Since such a force is provided by the urging member, the corrector can be attached to the nail in a manner that does not apply an excessive force to the nail. When the curled nail begins to be corrected, the left side edge and the right side edge of the nail are lifted and the distance between the two is increased, so that the distance between the base body and the nail is allowed to be increased. The urging force of the urging member that moves downward and acts on the nail gradually weakens, but the corrector does not fall off the nail. Since the correction tool configured in this manner applies the force to the nail by the left arm and the right arm each provided with a hook portion, the size in the left-right direction of the nail, that is, the size of the nail, the thickness of the nail The nail can be mounted as described above without being affected by the degree of deformation of the nail. The claw that is a winding claw is not only bent and deformed evenly on the left and right, but there are many cases where the deformation amount on either the left or right side is larger, but the left arm and right arm can be rotated respectively. Since the combined forearm and upper arm can be bent, the abutment position of the abutment portion of the fulcrum member on the larger deformation amount side even when the deformation amount of the nail is not uniform left and right The corrector can be attached to such a nail without any trouble in the state where it is brought close to, and even in such a case, the wound nail can be effectively corrected.

  In the curly nail correction tool according to the first aspect or the second aspect, the hook portion of the left arm is hooked on the left side edge portion of the nail, and the hook portion of the right arm is hooked on the right side edge portion of the nail. And the distance between the contact portion and the hook portion of the left arm, and the hook portion of the contact portion and the right arm in a state where the contact portion of the fulcrum member is attached to the nail. Sometimes the distance between is not equal. The force (component force) in the direction of correcting the wound nail applied to the left side edge and the right side edge of the nail provided by the spring is between the hook portion of the left arm and the contact portion of the fulcrum member. When the distance and the distance between the hook portion of the right arm and the contact portion of the fulcrum member are equal, the left side edge portion and the right side edge portion of the claw are equal. On the other hand, the component force is abutted if the distance between the hooked portion of the left arm and the contact portion of the fulcrum member is not equal to the distance between the hooked portion of the right arm and the contact portion of the fulcrum member. It is large on the side where the distance to the part is reduced, and it is small on the side where the distance to the contact part is increased. In other words, if the distance between the contact portion and the hook portion of the left arm is not equal to the distance between the contact portion and the hook portion of the right arm, the amount of deformation of the nail is not right and left. In a uniform case, the above-mentioned component force is obtained by hooking a hook portion on the side that reduces the distance from the abutment portion of the fulcrum member in the mounted state on the side edge portion of the nail having a large deformation amount. It is possible to effectively and rationally correct a nail in which the deformation amount of the nail is not uniform on the right and left by increasing the size at the side edge of the nail having the larger deformation amount. The distance between the combination position of the fulcrum member in the base body and the combination position of the left arm and the distance between the combination position of the fulcrum member and the combination position of the right arm should not be equal. This is one of the preferred embodiments. In addition, the fulcrum member may be combined with the base body so that the movement of the contact portion in the left-right direction can be adjusted, and in this case, the distance between the contact portion and the hook portion of the left arm. The corrector can be attached to the nail so that the distance between the contact portion and the hook portion of the right arm is not equal.

  The curly nail corrector according to the present invention can be attached to the nail without applying excessive force to the nail, and is suitable for correcting nails having different horizontal dimensions while being a single corrector. Can be used.

FIG. 1 is a perspective view of a correction tool (first example) according to an embodiment of the present invention. FIG. 2 is a perspective view of the correction tool of the first example, showing a state where the left and right arms are opened. FIG. 3 is a plan view showing the correction tool of the first example viewed from above in FIG. 4 is a cross-sectional view taken along line AA in FIG. FIG. 5 is a bottom view showing the correction tool of the first example from below in FIG. FIG. 6 is a front view of a principal part fractured view showing the mounting state of the correction tool of the first example, showing the toes as viewed from the fingertip side. FIG. 7 is a front view of a main part fracture showing the mounting state of the correction tool of the first example, and shows a state in which the wound nail is corrected from the state of FIG. FIG. 8 is a front sectional view of a main part of a correction tool (second example) that is partially different from the correction tool of the first example. FIG. 9 is a front sectional view of a principal part showing a mounting state of the correction tool of the second example on the nail. FIG. 10 is a front sectional view of a main part of a correction tool (third example) in which a part of the configuration is different from that of the correction tool of the first example. FIG. 11 is a front sectional view of a main part of a correction tool (fourth example) in which a part of the configuration is different from the correction tool of the first example.

  Hereinafter, typical embodiments of the present invention will be described with reference to FIGS. The correction tool S according to this embodiment is attached to a nail N that is a wound nail and is used to correct the nail N to a normal state.

  First, the correction tool S (first example) shown in FIGS. 1 to 7 will be described. The corrector S includes a base body 1, a left arm 2, a right arm 2, and a fulcrum member 3. The corrector S is typically made of metal or synthetic resin. In the illustrated example, a movable body 31 described later is made of synthetic resin, and the remaining members are made of metal.

  The base body 1 has a female screw that vertically penetrates the pivot assembly 10 of the left arm 2 at the left end and the pivot assembly 10 of the right arm 2 at the right end of the base body 1 at a middle position in the horizontal direction. Each hole 11 is provided. In the illustrated example, the base body 1 is formed by processing a metal bar. The pivot assembly 10 is provided with a shaft hole 10a penetrating in the front-rear direction at the left and right ends of the bar.

  The left arm 2 includes a hooking portion 20 on the left side edge Na of the claw N at the free end. Further, the right arm 2 is provided with a hooking portion 20 on the right side edge Nb of the claw N at its free end.

  In the illustrated example, each of the left arm 2 and the right arm 2 includes a forearm portion 21 and an upper arm portion 22 that are rotatably combined. The forearm portion 21 includes the hook portion 20. The upper end portion is combined with the base body 1 so as to be rotatable. In the illustrated example, the left arm 2 and the right arm 2 are each formed by processing a metal round bar.

  A shaft hole 22 a penetrating in the front-rear direction is provided at the upper end portion of the upper arm portion 22. By passing the screw body 23 through the shaft hole 22 a of the upper arm portion 22 and the shaft hole 10 a of the base body 1, the upper arm portion 22 is rotatably combined with the base body 1. The screw body 23 is formed by providing a round head 23a at one end of a shaft inserted through the shaft holes 10a and 22a and fastening a nut 23b at the other end of the shaft. At the lower end portion of the upper arm portion 22, a rotating assembly portion 22b of the forearm portion 21 is formed. The rotating assembly portion 22b is also provided with a shaft hole 22c penetrating in the front-rear direction at the lower end portion of the round bar.

  A shaft hole 21 a penetrating in the front-rear direction is provided at the upper end portion of the forearm portion 21. By passing the screw body 24 through the shaft hole 21 a of the forearm portion 21 and the shaft hole 22 c of the upper arm portion 22, the forearm portion 21 is rotatably combined with the upper arm portion 22. The screw body 24 is also formed by providing a round head 24a at one end of a shaft inserted through the shaft holes 21a and 22c and fastening a nut 24b at the other end of the shaft.

  The lower end portion of the forearm portion 21 is configured to gradually reduce the thickness toward the terminal. At the lower end portion of the forearm portion 21, the hook base portion 20b is integrally connected to the terminal, and the hook portion 20 that is bent toward the inside of the lower end portion and forms a hook shape with the hook end 20a facing upward is formed. Has been.

  The fulcrum member 3 is between the left arm 2 and the right arm 2 and has a lower end portion as a contact portion 31b with the claw N. The fulcrum member 3 includes a shaft body 30 that is combined with the base body 1 so as to be able to advance and retract in the vertical direction, and a shaft body 30 that is combined with the shaft body 30 so as to be movable up and down. A movable body 31 to be formed, and a compression coil spring 32 as an example of an urging member for the movable body 31 interposed between the movable body 31 and the shaft body 30 are provided.

  In the illustrated example, the lower end portion of the shaft body 30 is a cylindrical portion 30 a in which the lower end with the central axis of the shaft body 30 as the cylinder axis is opened. On the other hand, the movable body 31 has a disk-shaped head portion 31a at the upper end and a disk-shaped portion at the lower end, and has a shaft shape with the lower surface of the disk-shaped portion as the contact portion 31b. The head portion 31a is inserted into the cylindrical portion 30a so as to be movable up and down along the central axis of the shaft body 30. An inner flange 30b is formed at the opened lower end of the cylindrical portion 30a. The spring 32 is interposed between the head portion 31a of the movable body 31 and the inner back portion of the cylindrical portion 30a. The movable body 31 can be moved upward against the bias of the spring 32 from the maximum projecting position where the head 31 a is hooked on the inner collar 30 b by the bias of the spring 32. The contact portion 31b of the movable body 31 is formed with a plurality of irregularities that function as anti-slip. (Fig. 5)

  At the upper end of the shaft body 30, a knurled portion 30 c having a notch along the central axis of the shaft body 30 is provided. A male screw portion 30d for the female screw hole 11 of the base body 1 is formed between the knurled portion 30c and the cylindrical portion 30a of the shaft body 30, and the fulcrum member 3 is a male screw portion 30d of the shaft body 30. Are combined with the base body 1 by screwing them into the female screw holes 11 of the base body 1. That is, the knurled portion 30 c of the fulcrum member 3 is positioned above the base body 1, and the contact portion 31 b is positioned below the base body 1.

  The hook 20 of the left arm 2 is hooked to the left side edge Na of the claw N, the hook 20 of the right arm 2 is hooked to the right side edge Nb of the claw N, and the abutment 31b of the fulcrum member 3 is When the fulcrum member 3 is operated so as to be screwed downward from the mounted state against the claw N, the movable body 31 is moved upward while the spring 32 stores energy. (Reference sign F in FIG. 6 / figure shows a toe.) The spring 32 applies a force in a direction away from the nail N to the base body 1, which is applied to the hook portion 20 of the left arm 2 and the right arm 2. Since it becomes the force of the direction which expands the distance between the hook parts 20, the force of the direction which corrects the wound nail can be applied to the nail N by the correction tool S. Since such a force is provided by the spring 32, the correction tool S can be attached to the nail N in such a manner that no excessive force is applied to the nail N. When the wound nail starts to be corrected, the left side edge Na and the right side edge Nb of the nail N are lifted, and the distance between the two is increased, so that the distance between the base body 1 and the nail N is allowed to be increased. The movable body 31 is gradually moved downward and the urging force of the spring 32 acting on the nail N gradually weakens, but the correction tool S does not fall off from the nail N. (FIG. 7) Since the correction tool S applies the force to the nail N by the left arm 2 and the right arm 2 each having the hooking portion 20, the size of the nail N in the left-right direction, that is, the size of the nail N The nail N can be mounted as described above without being affected by the thickness of the nail N and the degree of deformation of the nail N. As shown in FIG. 6, the claw N that is a wound claw is not only bent and deformed evenly on the left and right sides, but also has a large amount of deformation on either the left or right side. The right arm 2 is composed of a forearm portion 21 and an upper arm portion 22 that are rotatably combined, and can be bent. Therefore, even when the deformation amount of the nail N is not uniform left and right, the deformation amount The corrector S can be mounted without any trouble on such a nail N in a state where the contact position of the contact portion 31b of the fulcrum member 3 is brought closer to the larger side. Correction is possible.

  Typically, the fulcrum member 3 is screwed in a range where the force applied to the nail N does not become too strong from the state in which the correction tool S is mounted on the nail N as described above. In this state, the nail N is easily deformed by putting the foot in hot water. When the wound nail is corrected to some extent and the force applied to the nail N is reduced by the attenuation of the biasing force of the spring 32, the correction can be continued by further screwing the fulcrum member 3 as necessary. it can.

  8 and 9 show a correction tool S (second example) obtained by changing a part of the configuration of the correction tool S (first example) shown in FIGS. 1 to 7, and FIG. 1 to 7 shows a correction tool S (third example) obtained by changing a part of the configuration of the correction tool S shown in FIG. 7, and FIG. 11 shows a configuration of the correction tool S shown in FIGS. The correction tool S (4th example) which changes a part is shown.

  In the correction tool S of the second and fourth examples, the hooking portion 20 of the left arm 2 is hooked to the left side edge Na of the nail N, and the hooking portion 20 of the right arm 2 is hooked to the right side of the nail N. A distance between the contact portion 31b and the hook portion 20 of the left arm 2 in a state where the contact portion 31b of the fulcrum member 3 is attached to the claw N while being hooked to the edge portion Nb. The distance between the contact portion 31b and the hook portion 20 of the right arm 2 is not equal.

  The force (component force) in the direction of correcting the wound nail applied to the left side edge Na and the right side edge Nb of the nail N provided by the spring 32 is the hook 20 and the fulcrum member of the left arm 2. 3 is equal to the distance between the hook portion 20 of the right arm 2 and the contact portion 31b of the fulcrum member 3, the left side edge Na of the claw N and the right side edge. It becomes equal to Nb. On the other hand, the component force includes the distance between the hook portion 20 of the left arm 2 and the contact portion 31b of the fulcrum member 3, and the distance between the hook portion 20 of the right arm 2 and the contact portion 31b of the fulcrum member 3. If they are not made equal, they are larger on the side where the distance from the contact part 31b is reduced, and are smaller on the side where the distance from the contact part 31b is increased. That is, according to the correction tool S of the second example and the fourth example, when the deformation amount of the nail N is not uniform left and right, the fulcrum member 3 in the mounted state on the side edge of the nail N on the side with the large deformation amount. By engaging the hooking portion 20 on the side that reduces the distance from the contact portion 31b, the component force is increased at the side edge of the nail N on the large deformation side, and the nail N is deformed. The nail | Nail | Nail whose quantity is uneven in right and left can be corrected effectively and rationally.

  In the second example, the left arm 2 and the right arm 2 are composed of a single bar having upper ends thereof combined with the base body 1 so as to be rotatable. A hooking portion 20 is formed at the lower end of each of the left arm 2 and the right arm 2. In the second example, the total length of the right arm 2 is shorter than the total length of the left arm 2. In this second example, the distance between the combination position of the fulcrum member 3 and the combination position of the left arm 2 in the base body 1 and the combination position of the fulcrum member 3 and the combination position of the right arm 2 are as follows. The distance is not made equal. In the illustrated example, the distance between the combination position of the fulcrum member 3 and the combination position of the left arm 2 in the base body 1 is larger than the distance between the combination position of the fulcrum member 3 and the combination position of the right arm 2. It is getting bigger. Thereby, in this 2nd example, in the mounting state to the said nail | claw N of the correction tool S, the distance between the said contact part 31b and the hook part 20 of the left arm 2, and the said contact part 31b and the right arm 2 The distance to the hooking portion 20 is not equal. In this second example, the shaft constituting the fulcrum member 3 is separated into a cylindrical portion 30 a that houses the movable body 31 and the remaining portion 30 e, and both are connected by a ball joint 33. In the illustrated example, a concave portion 33a constituting the ball joint 33 is formed at the upper end of the cylindrical portion 30a, and a spherical head portion 33b that is complementarily accommodated in the concave portion 33a is formed below the remaining portion 30e. . Thus, in this second example, the ball joint 33 can be moved and adjusted to a position where the contact portion 31b can be easily brought into close contact with the surface of the claw N. Since the remaining configuration of the correction tool S of the second example is the same as or substantially the same as the corresponding configuration of the correction tool S of the first example, the same components are shown in FIGS. The description is abbreviate | omitted using the code | symbol same as the code | symbol used in FIG.

  In the said 3rd example, the fulcrum member 3 is combined with the base body 1 so that the movement of the contact part 31b in the left-right direction can be adjusted. In this third example, the left arm 2 and the right arm 2 are composed of a single rod body whose upper ends are combined with the base body 1 so as to be rotatable. A hooking portion 20 is formed at the lower end of each of the left arm 2 and the right arm 2. In the third example, the total length of the left arm 2 and the total length of the right arm 2 are equal. In the third example, the fulcrum member 3 is supported by the base body 1 at a position approximately in the middle of the base body 1 in the left-right direction. In the illustrated example, the fulcrum member 3 is supported by the spherical bearing mechanism 12 so as to be swingable with respect to the base body 1. The spherical bearing mechanism 12 includes a spherical body 12a and an annular bearing body 12b that accommodates the spherical body 12a inside. The inner surface of the annular bearing body 12b has a concave spherical shape that is complementary to the outer surface of the spherical body 12a. The bearing body 12 b is fitted in a mounting hole formed in the base body 1 and fixed to the base body 1. The spherical body 12a is provided with a female screw hole 12c penetrating up and down, and the fulcrum member 33 is formed by screwing the male screw portion 30d of the shaft body 30 into the female screw hole 12c of the spherical body 12a. 1 is combined. With this spherical bearing mechanism 12, the fulcrum member 3 can move the contact portion 31 b to the right side so as to approach the hooking portion 20 of the right arm 2, and the contact portion 31 b can be moved to the left arm 2. It can be moved to the left so as to approach the hooking portion 20. Thereby, in this third example, the distance between the contact portion 31b and the hook portion 20 of the left arm 2 is not equal to the distance between the contact portion 31b and the hook portion 20 of the right arm 2. Thus, the corrector S can be attached to the nail N. The rest of the configuration of the correction tool S of the third example is the same as or substantially the same as the corresponding configuration of the correction tool S of the first example. The same reference numerals as those used in FIG.

  In the fourth example, the movable body 31 constituting the fulcrum member 3 is separated into an upper part 31c that houses the upper part in the cylindrical part 30a and a lower part 31d that has a contact part 31b. They are connected by a ball joint 33. In the illustrated example, a concave portion 33a constituting a ball joint 33 is formed on the upper portion of a lower portion 31d whose lower end is a contact portion 31b, and a spherical head that is complementarily accommodated in the concave portion 33a below the upper portion 31c. 33b is formed. Accordingly, in the fourth example, the ball joint 33 can be moved and adjusted to a position where the contact portion 31b can be easily brought into close contact with the surface of the claw N. In the fourth example, a soft material 31e is provided below the lower portion 31d, and the lower surface of the soft material 31e functions as the contact portion 31b. The rest of the configuration of the correction tool S of the fourth example is the same as or substantially the same as the corresponding configuration of the correction tool S of the first example. The same reference numerals as those used in FIG.

N claw Na left side edge Nb right side edge 1 base body 2 arm 20 hooking portion 21 forearm portion 22 upper arm portion 3 fulcrum member 30 shaft body 31 movable body 31b abutting portion 32 spring

Claims (5)

A base body,
A left arm with a hook on the left side edge of the nail at the free end;
A right arm with a hook on the right side edge of the nail at the free end;
A fulcrum member between the left arm and the right arm and having a lower end portion as a contact portion with the claw;
Each of the left arm and the right arm is combined so that the upper end of the left arm and the base body can rotate.
The fulcrum member is a shaft body combined with the base body so as to be able to advance and retract in the vertical direction, a movable body combined with the shaft body so as to be movable up and down, and forming the contact portion under the shaft body, An incurvated nail correction tool comprising an urging member for the movable body interposed between the movable body and a shaft body. A base body,
A left arm with a hook on the left side edge of the nail at the free end;
A right arm with a hook on the right side edge of the nail at the free end;
A fulcrum member between the left arm and the right arm and having a lower end portion as a contact portion with the claw;
The left arm and the right arm each have a forearm portion and an upper arm portion that are rotatably combined, and the forearm portion has the hook portion, and the upper arm portion is rotatably combined with a base body,
The fulcrum member is a shaft body combined with the base body so as to be able to advance and retract in the vertical direction, a movable body combined with the shaft body so as to be movable up and down, and forming the contact portion under the shaft body, An incurvated nail correction tool comprising an urging member for the movable body interposed between the movable body and a shaft body.   Hook the left arm hook on the left side edge of the nail, hook the right arm hook on the right side edge of the nail, and move the fulcrum member to the nail. In the mounted state, the distance between the contact portion and the hook portion of the left arm is not equal to the distance between the contact portion and the hook portion of the right arm. The ingrown nail correction tool according to claim 1 or 2.   The distance between the combination position of the fulcrum member and the combination position of the left arm on the base body is not equal to the distance between the combination position of the fulcrum member and the combination position of the right arm. The ingrown nail correction tool according to claim 1 or 2.   The curl nail correction tool according to claim 1 or 2, wherein the fulcrum member is combined with the base body so that the movement of the contact portion in the left-right direction can be adjusted.

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