JP2022187498A - Nail corrector - Google Patents

Abstract

To provide a nail corrector capable of correcting a nail without latching.SOLUTION: A nail corrector 10 comprises a contact part 11 comprising: a first end area 11a; a second end area 11b; and an intermediate area 11c. A length of the contact part 11 in a first direction is longer than one side nail back edge of a nail to be corrected and the other side nail back edge of the nail, by forming the contact part 11. The first end area 11a and the intermediate area 11c contact a nail plate 20 of the nail to be corrected. The second end area 11b protrudes from an area where there is the nail plate 20 when the first end area 11a and the intermediate area 11c are fitted to the nail plate 20. The first end area 11a is fixed by only adhesive, to a first side part 21 of the nail plate 20. The intermediate area 11c is fixed to an area between the first side part 21 and the second side part 22, in a state in which the first end area 11a is fixed to the first side part 21 and the contact part 11 is elastically deformed by flexure.SELECTED DRAWING: Figure 9

Description

The present invention relates to a nail correction device and the like.

Conventionally, a correction tool for correcting an ingrown nail has been proposed as in Patent Document 1.

Japanese Patent Application Laid-Open No. 2002-360619

However, it is necessary to latch the brace to the lateral nail edge.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a nail corrector or the like capable of correcting the nail without hooking.

A nail corrector according to the present invention comprises a contact portion having a first end region, a second end region, and an intermediate region between the first and second end regions.
The length in the first direction, which is the direction in which the first end region, the intermediate region, and the second end region of the contact portion are arranged, is the length between one side nail edge of the nail to be corrected and the side nail edge of the nail. A contact is formed to be longer than the length between the other.
The first end region and the intermediate region contact the nail plate of the nail to be corrected.
The second end region protrudes from the region where the nail plate lies when the first end region and the intermediate region are attached to the nail plate.
The first end region is fixed to one of the sides of the nail plate only by gluing.
The intermediate region is at least a region between one side of the nail plate and the other side of the nail plate, the first end region is fixed to one of the side portions of the nail plate, and the contact portion is elastically deformable by bending. It is glued in place.

The region of the nail corrector adhered to the nail plate is adhered to the nail plate while being bent by elastic deformation.
Therefore, due to the reaction force that tries to return from the bent state to the flat state (the state before bending), the lateral nail plate edge of the nail plate is deformed as if it is rolled inward, and the lateral nail plate edge is exposed to the skin. It is possible to improve the state of being bitten into.

In addition, the nail correction device is attached to the nail plate only by bonding the surface of the nail plate without hooking the nail correction device to the side nail plate edge.
Therefore, pain in the area including the nail plate due to the latch does not occur.
In addition, even when a part of the instrument cannot be inserted between the nail plate and the nail bed and the nail cannot be latched, the nail corrector can be easily attached to the nail plate.

Preferably, the lower surface of the contact portion has a planar shape.
A rear side of the upper surface of the first end region in a second direction perpendicular to the first direction has a planar portion.
The front side in the second direction of the upper surface of the first end region has a protrusion.

This pressing makes it possible to dent the part that hinders the extension of the nail plate, so that the nail plate can be easily extended.

More preferably, the rear side of the convex portion in the second direction is closer to the first end region than the side of the first end region that is in contact with the intermediate region. It has a shoe-like shape that approaches the rear end in the second direction.

Due to the hoof shape of the projection, the pressing can be performed in a state where the obliquely cut tip of the nail plate and the tip of the projection on the rear side in the second direction are close to each other.

Moreover, preferably, the nail corrector further comprises a grip part integrally formed with the convex part and having a shape protruding from the first end region in the second direction.

More preferably, the first end region is wider in a second direction perpendicular to the first direction than the second end region.
The intermediate region has a shape in which the width in the second direction continuously and smoothly narrows from the side where the first end region is located to the side where the second end region is located, and the front side in the second direction is straight. , and the rear side in the second direction is curved.

The second end region has a narrower shape than the first end region.
For this reason, compared with the form in which the second end region has a wide shape, it is easier to bend the contact portion and to cut off the second end region.
The intermediate region has a continuously narrowing shape.
As a result, compared with a form in which the intermediate region has a sharp region such as a stepped shape, the contact portion is less likely to break due to bending.

More preferably, a portion of one of the second end region and the intermediate region is adhesively secured to the other of the sides of the nail plate.

The contact portion will be adhesively secured to the nail plate from one of the lateral nail plate edges to the other. Therefore, the adhesion area is increased, and the adhesion between the contact portion and the nail plate can be strengthened.

More preferably, at least a composition produced based on a micronized metal having at least one of antibacterial and antiviral properties and a glass material incorporating a metal having at least one of antibacterial and antiviral properties. One is included in the nail corrector.

Bacteria, viruses, mold, etc. can be difficult to grow on the nail straightener.

Also preferably, a composition based on micronized copper is included in the 5 weight percent nail corrector.

When copper is included in the material, not only does it have antibacterial and antiviral effects, but the nail corrector is composed of a brownish transparent material. As a result, the nail corrector can match the color of the patient's nail plate and skin, compared to the case where the nail corrector is made of a colorless and transparent material, and the nail corrector can be inconspicuous when attached to the patient's nail plate.

A method of using a nail corrector according to the present invention comprises a contact portion having a first end region, a second end region, and an intermediate region between the first end region and the second end region. It is a usage method of the nail corrector.
The length in the first direction, which is the direction in which the first end region, the intermediate region, and the second end region of the contact portion are arranged, is the length between one side nail edge of the nail to be corrected and the side nail edge of the nail. A contact is formed to be longer than the length between the other.
The first end region and the intermediate region contact the nail plate of the nail to be corrected.
The second end region protrudes from the region where the nail plate lies when the first end region and the intermediate region are attached to the nail plate.
The method of using the nail corrector includes a first bonding step of fixing the first end region to one of the side portions of the nail plate only by bonding; a second bonding step of fixing by bonding to a region between the other of the side portions of the nail plate in a state in which the first end region is fixed to one of the side portions of the nail plate and the contact portion is elastically deformed by bending; .

Preferably, the method of using the nail corrector further comprises an accelerator application step of applying a hardening accelerator to one of the nail corrector and the nail plate.
The adhesive used in the bonding in the first bonding step and the second bonding step is a photocurable adhesive.
The method of using the nail corrector further comprises a photo-curing step of irradiating light on the adhesive remaining on the area of the nail plate where the nail corrector is not attached.

Completion of adhesion between the nail correction device and the nail plate can be completed earlier than in the case where no curing accelerator is used.
The adhesive that has leaked out from between the nail corrector and the nail plate can be cured early by using the light irradiation device.

More preferably, the accelerator is applied to the nail brace using a brush.
The adhesive is applied to the nail plate from a container of adhesive.

More preferably, the method for using the nail corrector further comprises, after the second adhering step, a cutting step of cutting off the second end region, and a polishing step of polishing the surface of the nail corrector's bonded region. .

Since the surface (upper surface) of the region of the nail corrector adhered to the nail plate is smoothly polished by the polishing process, even if the region of the nail corrector adhered to the nail plate is touched, the possibility of being caught on the surface is low. .

A method of using the nail corrector according to the present invention includes a first end region having a flat portion and a convex portion, a second end region, and an intermediate region between the first end region and the second end region. A method of using a nail corrector with a contact portion having
The length in the first direction, which is the direction in which the first end region, the intermediate region, and the second end region of the contact portion are arranged, is the length between one side nail edge of the nail to be corrected and the side nail edge of the nail. A contact is formed to be longer than the length between the other.
The first end region and the intermediate region contact the nail plate of the nail to be corrected.
The second end region protrudes from the region where the nail plate lies when the first end region and the intermediate region are attached to the nail plate.
The method of using the nail corrector is to fix the flat portion of the first end region to one of the sides of the nail plate only by bonding while pressing the convex portion against the portion without the nail plate with the tip of the finger. fixing the intermediate region to at least a region between one of the sides of the nail plate and the other of the sides of the nail plate and the first end region to one of the sides of the nail plate; and a second bonding step of bonding and fixing the contact portion in a state of being elastically deformed by bending.

As described above, according to the present invention, it is possible to provide a nail corrector or the like capable of correcting the nail without hooking.

It is a perspective view of the first nail corrector in the present embodiment. FIG. 2 is a perspective view of the first nail corrector viewed from a direction different from that of FIG. 1; Fig. 2 is a perspective view of a second nail corrector according to the present embodiment; FIG. 4 is a perspective view of the second nail corrector viewed from a direction different from that of FIG. 3; FIG. 10 is a perspective view of the patient's toes, the polishing tool, the dust collector, and the operator's fingers in the first polishing step of the first treatment; FIG. 10 is a perspective view of the patient's toes, the second nail corrector, and the operator's fingers in the positioning process of the first treatment; FIG. 10 is a perspective view of the patient's toes, the second nail corrector, the accelerator application brush, and the operator's fingers in the accelerator application step of the first treatment; FIG. 4 is a perspective view of the patient's toe, the second nail corrector, the adhesive container, and the operator's finger in the first application step of the first treatment; FIG. 4 is a perspective view of a patient's toe, a second nail corrector, and a practitioner's finger in a first adhesion step of a first treatment; FIG. 10 is a perspective view of the patient's toe, the second nail corrector, the adhesive container, and the operator's finger in the second application step of the first treatment; FIG. 10 is a perspective view of a patient's toe, a second nail corrector, and a practitioner's finger with the middle region adhered to the nail plate in a second bonding step of the first procedure; FIG. 10 is a perspective view of the patient's toes, the second nail corrector, the light irradiation device, and the operator's fingers in the photo-curing step of the first treatment; FIG. 10 is a perspective view of the patient's toe, the second nail corrector, the manual tool, and the operator's finger during the clipping step of the first treatment; FIG. 10 is a perspective view of the patient's toe, part of the second nail corrector, the polishing tool, the dust collector, and the operator's finger in the second polishing process of the first treatment; FIG. 10 is a perspective view of the patient's toes in the first adhesion step of the first treatment, the second nail corrector with a part cut off on the rear side in the y direction, and the fingers of the operator. FIG. 11 is a perspective view of the patient's toe, the second nail corrector, and the operator's finger in the first adhesion step of the second treatment;

The present embodiment will be described below with reference to the drawings.
In addition, embodiment is not restricted to the following embodiments. In addition, the contents described in one embodiment are in principle similarly applied to other embodiments. Moreover, each embodiment and each modified example can be appropriately combined.

(Nail correction device 10)
The nail corrector 10 according to this embodiment is a corrector used to restore the ingrown toenail or ingrown nail to a normal state.
In this embodiment, two types of treatments (first treatment and second treatment) are performed using the nail correction device 10 .
In the first treatment, the lower surface of the contact portion 11 of the nail corrector 10 is attached to the nail plate 20 .
In the second treatment, the upper surface of the contact portion 11 of the nail correction device 10 is attached to the nail plate 20 while the convex portion 12 is pressed against the portion (pressed region A) where the nail plate 20 does not exist with the tip of the finger. .

The nail corrector 10 includes a contact portion 11, a convex portion 12 and a grip portion 13 (see FIGS. 1 to 4).
The nail corrector 10 is made of cellulose nanofiber, ABS resin, or the like.
Further, it is desirable that the nail corrector 10 is made of a colorless and transparent plate.
The contact portion 11, the convex portion 12, and the grip portion 13 are desirably integrally formed by molding or the like, but they may be formed separately and attached later by adhesion or the like.

In order to explain the directions, the longitudinal direction of the nail corrector 10 is the x direction (first direction), the lateral direction perpendicular to the x direction is the y direction (second direction), and the x direction and the y direction are substantially vertical. The direction will be described as the z direction (third direction).
In FIG. 1 and the like, the directions indicated by the xyz-axis arrows are defined as the rightward direction, the forward direction, and the upward direction, respectively.

The nail corrector 10 is used after removing unnecessary portions according to the size of the nail plate 20, the degree of deformation of the nail plate 20, the progress of correction, and the like.
However, it is not necessary to prepare multiple kinds of sizes.
Two types of nail corrector 10 (first nail corrector 10a and second nail corrector 10b) are prepared in which the positions of the first end region 11a and the second end region 11b in the x direction are reversed.

(Contact portion 11)
The contact portion 11 is composed of a flexible flat plate and has a first end region 11a, a second end region 11b, and an intermediate region 11c.
The first end region 11a, the second end region 11b, and the intermediate region 11c are arranged in the x-direction and integrally formed.

The length of the contact portion 11 in the x direction is such that one of the side nail plate edges of the nail to be corrected (the edge of the side portion of the nail plate 20 (the first side portion 21)) and the other side nail plate edge (the nail The contact portion 11 is formed to be longer than the length between the other sides of the instep 20 (edge of the second side portion 22).
The first end region 11a and the intermediate region 11c contact the nail plate 20 of the nail to be corrected.
When the first end region 11a and the intermediate region 11c are attached to the nail plate 20, the second end region 11b protrudes in the x-direction from the region where the nail plate 20 lies.

The lower surface of the contact portion 11 is a region that faces the nail plate 20 during the first treatment and is coated with a curing accelerator in the accelerator coating step (see FIG. 7).
The upper surface of the contact portion 11 is a region that faces the nail plate 20 during the second treatment and is coated with a curing accelerator in the accelerator coating step.

(First end region 11a)
The first end region 11a is a region that is wide in the y direction (long in the y direction) and thin in the z direction (short in the z direction).
For example, the first end region 11a is formed with a width of about 2.74 mm in the x direction, a width of about 12 mm in the y direction, and a thickness of about 0.61 mm in the z direction.
A convex portion 12 is provided on the front side in the y direction of the upper surface of the first end region 11a, and a flat portion 11a1 is formed on the rear side in the y direction of the upper surface of the first end region 11a.

The first nail corrector 10a is provided with a first end region 11a on the right side in the x direction (see FIGS. 1 and 2).
The second nail corrector 10b is provided with a first end region 11a on the left side in the x direction (see FIGS. 3 and 4).
When correcting the right side of the nail plate 20 in the first treatment, the lower surface of the first nail correction device 10a is adhered to the nail plate 20 in a state of facing it.
When correcting the left side of the nail plate 20 in the first treatment, the lower surface of the second nail corrector 10b is adhered to face the nail plate 20 (see FIGS. 5 to 14).
When correcting the right side of the nail plate 20 in the second treatment, the upper surface of the second nail corrector 10b is adhered to face the nail plate 20 (see FIG. 16).
When correcting the left side of the nail plate 20 in the second treatment, the upper surface of the first nail correcting device 10a faces the nail plate 20 and is adhered.

(Second end region 11b)
The second end region 11b has a narrower width in the y direction (shorter dimension in the y direction) and a thicker thickness in the z direction (longer dimension in the z direction) than the first end region 11a. is.
For example, the second end region 11b is formed with a width of about 4.02 mm in the y direction and a thickness of about 1.14 mm in the z direction.
Also, the second end region 11b and the intermediate region 11c are formed with a width of about 40.73 mm in the x direction.
The second end region 11b is a region for the practitioner (user) to grip the nail corrector 10 during an alignment process or the like.
In addition, the second end region 11b is formed by bonding the intermediate region 11c to at least the region between the first side portion 21 and the second side portion 22 after bonding the first end region 11a to the first side portion 21. This is an area for the practitioner to press one end of the nail corrector 10 when bending the contact portion 11 (see FIG. 12).

(Intermediate region 11c)
The intermediate region 11c is a region between the first end region 11a and the second end region 11b.
The side of the intermediate region 11c closer to the first end region 11a is wider in the y direction (longer in the y direction) and thinner in the z direction (shorter in the z direction).
The side of the intermediate region 11c closer to the second end region 11b has a narrower width in the y direction (shorter dimension in the y direction) and a thicker thickness in the z direction (longer dimension in the z direction).
That is, the intermediate region 11c has a width in the y direction that is narrower and a thickness in the z direction that is continuously and smoothly increased from the side where the first end region 11a is located to the side where the second end region 11b is located. It has a shape
In addition, the intermediate region 11c has a linear front side in the y direction (the side on which the grip portion 13 is provided) and a curved (substantially arcuate) rear side in the y direction.
Moreover, except for the boundary portion between the first end region 11a and the intermediate region 11c, the intermediate region 11c does not have a sharp region such as a stepped shape.

(Thickness of contact portion 11)
The contact portion 11 is formed so that the thickness in the z-direction increases smoothly from the first end region 11a side to the second end region 11b side.

(Convex portion 12)
The convex portion 12 is formed of a substantially semi-cylindrical rod-shaped member that swells upward in the z-direction on the upper surface of the first end region 11a and extends in the y-direction.
The convex portion 12 is a region that is pressed against a portion (pressed region A) with the tip of the finger where there is no nail plate 20 during the second treatment (see FIG. 16).
Even if the hardening accelerator is applied to the upper surface of the contact portion 11 in the second treatment, the convex portion 12 is not applied with the hardening accelerator.

At the rear end in the y direction of the projection 12, the outer side in the x direction (the side opposite to the side on which the intermediate region 11c is present) is closer to the first end region 11a than the inner side in the x direction (the side on which the intermediate region 11c is present). has a shoe-like shape close to the rear end in the y direction.
The horseshoe shape has a sharp tip on the outside in the x direction and on the rear side in the y direction.
The shoe-shaped tip may have an acute angle of about 45 degrees with respect to the yz plane as shown in FIGS. It may be a form having an acute angle.

(Gripping portion 13)
The gripping portion 13 is a substantially semi-cylindrical rod-shaped member that protrudes from the front end of the first end region 11a in the y direction in the direction in which the nail including the nail plate 20 extends (y direction) and in the direction away from the nail plate 20. consists of
The grip portion 13 is integral with the convex portion 12 and has a shape extending continuously in the y direction.
The gripping portion 13 is a region for the practitioner to grip the nail correction device 10 in the alignment process or the like (see FIG. 16).
In addition, in the alignment process and the like, the practitioner may grip the grip portion 13 or the second end region 11b.
In addition, after the first end region 11a is adhered to the first side portion 21 of the nail plate 20, the grip portion 13 attaches the intermediate region 11c to at least the region between the first side portion 21 and the second side portion 22. This is an area for the practitioner to press the other end of the nail corrector 10 when bending the contact portion 11 for bonding.

(Procedure explanation)
Next, a procedure for using the nail corrector 10 to correct an ingrown nail or an ingrown nail, that is, a procedure for attaching the nail corrector 10 to the nail plate 20 will be described (see FIGS. 5 to 14).
In this embodiment, the left side of the nail plate 20 of the patient's left thumb is used as the first side 21, and the second side is used to correct an ingrown nail or ingrown nail on the left side (first side 21). An example of attaching the lower surface of the nail corrector 10b to the nail plate 20 of the thumb of the left leg is shown (first treatment).
The procedure for attaching the first nail corrector 10a to the nail plate 20 in order to correct the ingrown nail or ingrown nail on the right side of the nail plate 20 of the patient in the first treatment is the same.

First, in order to facilitate adhesion, the surface of the nail plate 20 is polished using a polishing tool 41 (first polishing step, see FIG. 5).
In the first polishing step, it is desirable that a dust collector 43 for absorbing shavings generated by polishing be arranged below the nail plate 20 .

After the first polishing step, the lower surface of the first end region 11a of the second nail corrector 10b is brought closer to the first side portion 21 of the nail plate 20 to adjust the position where the second nail corrector 10b is attached (position Alignment) is performed (alignment step, see FIG. 6).

After the alignment process, a hardening accelerator (primer) is applied to the lower surface of the contact portion 11 of the second nail corrector 10b (accelerator application process, see FIG. 7).
At this time, the practitioner holds the second nail corrector 10b by gripping the second end region 11b.
The application of the curing accelerator is performed using a brush (accelerator application brush 45).
The curing accelerator is applied to the area of the contact portion 11 contacting the nail plate 20 (mainly the lower surface of the first end region 11a) in the first bonding step, and to the nail plate 20 of the contact portion 11 in the second bonding step. It is performed on the contacting regions (mainly the lower surfaces of the second end region 11b and the intermediate region 11c).

After the accelerator application step, an adhesive (gel) 46 is applied to the region where the lower surface of the first end region 11a of the nail plate 20 is to be adhered (first application step, see FIG. 8).
Application of the adhesive 46 to the nail plate 20 is desirably performed directly from the adhesive container 47 from the viewpoint of hygiene.
The first coating step may be performed before the accelerator coating step, or may be performed in parallel with the accelerator coating step.
The adhesive 46 is an ultraviolet curable or visible light curable photocurable adhesive, which reacts with high sensitivity to a wavelength region generated by a light irradiation device 49 to be described later, and is polymerized and cured.

After the accelerator application step and the first application step, the lower surface of the first end region 11 a is brought closer to the first side portion 21 .
In this embodiment, the lower surface of the first end region 11a is brought close to the left side of the nail plate 20 of the patient's left leg.
At this time, the nail corrector 10 is held by the operator by gripping the second end region 11b.
However, the holding of the nail correction device 10 may be performed by the practitioner holding the holding portion 13 .

Next, the lower surface of the first end region 11a is adhered to the first side portion 21 (first adhesion step, see FIG. 9).
Specifically, the first bonding step is performed by pressing the first end region 11a against the first side portion 21 while the operator holds the second end region 11b or the grip portion 13. .
At this time, the nail of the second nail corrector 10b is adhered only to the surface of the nail plate 20 (the surface of the first side portion 21) without hooking the second nail corrector 10b to the edge of the side nail plate. Fixation to the instep 20 is performed.

The curing accelerator on the lower surface of the first end region 11a of the contact portion 11 and the adhesive 46 of the nail plate 20 come into contact with each other, the adhesive 46 is cured, and the first end region 11a and the first side 21 are separated from each other. After fixing (bonding) is completed, an adhesive 46 is applied between the lower surface of the intermediate region 11c and the nail plate 20 (second application step, see FIG. 10).
Application of the adhesive 46 to the nail plate 20 is desirably performed directly from the adhesive container 47 from the viewpoint of hygiene.
Since the first end region 11a and the first side portion 21 are in a fixed state, the practitioner does not need to hold the second nail corrector 10b.

Next, the contact portion 11 (the second end region 11b, the intermediate region 11c) is bent so that the lower surface of the intermediate region 11c approaches the nail plate 20, and the lower surface of the intermediate region 11c moves toward the central portion of the nail plate 20 ( between the first side portion 21 and the second side portion 22) (second bonding step, see FIG. 11).
Specifically, the contact portion 11 is bent by pressing the upper surface of the second end region 11b.
Thereby, the lower surface of the intermediate region 11 c is brought closer to the nail plate 20 .
At this time, it is desirable to press the upper surface of the grip portion 13 so that the adhesion of the first end region 11a is not peeled off.

In order to increase the adhesion area and strengthen the adhesion between the contact portion 11 and the nail plate 20, the lower surface of the intermediate region 11c or the lower surface of the second end region 11b near the intermediate region 11c is , to the vicinity of the edge of the second side 22 (the other of the lateral nail edge), preferably with adhesive 46 .

The hardening accelerator on the lower surface of the intermediate region 11c of the contact portion 11 and the adhesive 46 of the nail plate 20 are brought into contact with each other, and the adhesive 46 hardens. Fixation (adhesion) with the area between the parts 22 is completed. As a result, the first end region 11a and the intermediate region 11c are fixed to the nail plate 20, or part of the second end region 11b, the first end region 11a and the intermediate region 11c are fixed to the nail plate 20. state.
At this time, the lower surface of the second end region 11b of the contact portion 11 and the region close to the intermediate region 11c also area and fixation may be performed.
The adhesive 46 remains in a region that does not face the contact portion 11, and curing of the adhesive 46 has not yet been completed immediately after the second bonding step.

After the intermediate region 11c and the nail plate 20 (such as the region between the first side portion 21 and the second side portion 22) are completely fixed, the upper surface of the second end region 11b is pressed, and the upper surface of the grip portion 13 is pressed. is released.

After the second bonding step, the nail plate 20 is irradiated with light from a light irradiation device 49 such as an LED to cure the adhesive 46 exposed on the nail plate 20 (photo-curing step, see FIG. 12). ).
The positional relationship between the light irradiation device 49 and the nail plate 20 is determined so that the light irradiation region 50 of the light irradiation device 49 includes the region where the uncured adhesive 46 exists on the nail plate 20 .
In order to speed up the photo-curing, it is desirable to thinly spread the adhesive 46 on the nail plate 20 using a metal rod or the like before the photo-curing process.

Next, from the area of the contact part 11 such as the second end area 11b that is not adhered to the nail plate 20 and the area of the grip part 13 that protrudes from the contact part 11, that is, from the finger including the affected part in the second nail corrector 10b The projected area is cut off with a manual tool 51 such as scissors (cutting step, see FIG. 13).

After the cutting off step, the polishing tool 41 is used to polish the surface (upper surface) of the region of the second nail corrector 10b adhered to the affected part (second polishing step, see FIG. 14).
In the second polishing step, the upper surface of the nail corrector 10 (the side not in contact with the affected area) is polished so that the adhesion between the second nail corrector 10b and the affected area is maintained.
After the second polishing step, the surface is finished by polishing using a file or the like (finishing step, not shown).

(Use of nail correction device 10 with the rear side in the y direction cut off)
5 to 14, examples of attaching the second nail corrector 10b to the nail plate 20 without cutting off the rear side in the y direction have been described.
However, it is used with the rear side in the y direction cut off according to the progress of correction (see FIG. 15).
For example, in the initial stage of correction, the nail corrector 10 with the rear side in the y direction cut off is used in order to correct only the tip portion of the nail plate 20 .

(Second treatment)
Next, the second treatment will be explained.
When the ingrown toenail or ingrown toenail is severe, the tip of the nail plate 20 on the side of the ingrown toenail or ingrown toenail may be cut off, exposing part of the skin (nail bed) at the tip of the finger. be.
In this case, the exposed portion of the nail bed may swell and hinder nail growth.
In the second treatment, the protruding portion 12 is pressed against the raised portion of the exposed portion of the nail bed (region A to be pressed) to dent the region A to be pressed so that the nail can be easily stretched (Fig. 16). reference).

Specifically, when the second nail corrector 10b is attached to the left thumb nail plate 20 to correct an ingrown or ingrown nail on the right side of the patient's left thumb nail plate 20, the acceleration In the agent application step, the curing accelerator is applied to the planar region of the upper surface of the contact portion 11 where there is no convex portion 12, such as the planar portion 11a1 of the upper surface of the first end region 11a of the second nail corrector 10b.

In the second treatment of this embodiment, the right side of the nail plate 20 of the thumb of the patient's left leg is used as the first side 21, and the right side (first side 21) is used to correct an ingrown nail or an ingrown nail. 2 shows an example of attaching the upper surface of the second nail corrector 10b to the nail plate 20 of the thumb of the left leg.

The first polishing step in the second treatment is the same as the first polishing step in the first treatment.

In the alignment step in the second procedure, the upper surface of the first end region 11a of the second nail corrector 10b is brought closer to the first side 21 of the nail plate 20 to adjust the position where the second nail corrector 10b is attached. is done.

In the step of applying the accelerator in the second treatment, a curing accelerator is applied to the upper surface of the contact portion 11 of the second nail corrector 10b.
The curing accelerator is applied to the area of the contact portion 11 in contact with the nail plate 20 in the first bonding step of the second treatment (mainly the planar portion 11a1 of the upper surface of the first end region 11a) and in the second bonding step. It is applied to the area of the contact portion 11 that contacts the nail plate 20 (mainly the upper surface of the second end area 11b and the intermediate area 11c).

In the first application step in the second treatment, the adhesive 46 is applied to the area where the planar portion 11a1 of the upper surface of the first end area 11a of the nail plate 20 is attached.

In the first bonding step in the second treatment, the planar portion 11a1 of the upper surface of the first end region 11a is bonded to the first side portion 21 (see FIG. 16).
Specifically, the operator grasps the second end region 11b or the grasping portion 13, and the protruding portion 12 of the second nail corrector 10b is placed at the tip of the finger where there is no nail plate 20 (pressed region A). The flat portion 11a1 of the upper surface of the first end region 11a of the second nail corrector 10b is adhered to the first side portion 21 while the second nail corrector 10b is pressed against the second nail corrector 10b.

This pressing makes it possible to make the nail plate 20 easy to stretch by recessing the portion that hinders the extension of the nail plate 20 .
The tip of the projection 12 on the rear side in the y direction is in the shape of a horseshoe, so that the obliquely cut tip of the nail plate 20 and the tip of the projection 12 on the rear side in the y direction are brought close to each other. can do

In the second application step in the second treatment, the adhesive 46 is applied between the upper surface of the intermediate region 11c and the nail plate 20. As shown in FIG.

In the second bonding step in the second treatment, the contact portion 11 (second end region 11b, intermediate region 11c) is bent so that the upper surface of the intermediate region 11c approaches the nail plate 20, and the upper surface of the intermediate region 11c is It is glued to the center of the nail plate 20 (between the first side 21 and the second side 22).
Specifically, the contact portion 11 is bent by pressing the lower surface of the second end region 11b.
As a result, the upper surface of the intermediate region 11 c is brought closer to the nail plate 20 .
At this time, it is desirable to press the lower surface of the grip portion 13 to prevent the adhesion of the first end region 11a from coming off.

The photo-curing step in the second treatment is the same as the photo-curing step in the first treatment.
The cutting off step in the second treatment is the same as the cutting off step in the first treatment.
In the second polishing step in the second treatment, the polishing tool 41 is used to polish the surface (lower surface) of the region of the second nail corrector 10b adhered to the affected part.

After the second polishing step in the first treatment and the second treatment, part of the nail corrector 10 (first nail corrector 10a or second nail corrector 10b) is adhered to the nail plate 20 for a certain period of time ( For example, it is left for about one month), and then scraped off and removed together with the extended tip of the nail (free edge of the nail plate).
Depending on the progress of correction, adhesion of the nail correction device 10 to the nail plate 20, leaving, and removal are repeated several times (for example, 5 to 6 times).

(Effect of Fixing Nail Corrector 10 to Nail Plate 20)
A region of the nail corrector 10 adhered to the nail plate 20 is adhered to the nail plate 20 in a bent state.
For this reason, the side nail plate edge of the nail plate 20 is deformed so as to be wound inward by the reaction force that tries to return from the bent state to the flat state (the state before being bent), and the side nail plate edge is deformed. It can improve the condition of the skin.
In the second polishing step, the surface of the region of the nail correction device 10 adhered to the nail plate 20 (the upper surface in the first treatment and the lower surface in the second treatment) is polished smoothly, so that the patient's hand or the like does not touch the nail correction device. Touching the area adhered to the nail plate 20 of 10 is less likely to snag the surface.
Moreover, when the nail correction device 10 is made of a colorless and transparent material, it is difficult to notice that a part of the nail correction device 10 is attached even when looking at the nail plate 20 .

Further, the nail correction device 10 is attached to the nail plate 20 only by bonding the surface of the nail plate 20 without hooking the nail correction device 10 to the side nail plate edge.
Therefore, pain in the area including the nail plate 20 caused by the latching does not occur.
In addition, even when part of the instrument cannot be inserted between the nail plate 20 and the nail bed and the nail cannot be latched, the nail corrector 10 can be easily attached to the nail plate 20.例文帳に追加

(Effect of Narrowing the Width of the Second End Region 11b)
The second end region 11b has a shape narrower in the y direction than the first end region 11a.
For this reason, compared to a form in which the second end region 11b has a wide width in the y direction, it is easier to bend the contact portion 11 in the second bonding step and the second end region 11b in the cutting off step. It is easy to cut off 11b.
The second end region 11b has a shape that is thicker in the z direction than the first end region 11a.
For this reason, the second end region 11b is less likely to break due to bending of the contact portion 11 in the second bonding step, as compared with a configuration in which the thickness in the z direction is thin.

(Effect of Shape of Intermediate Region 11c)
The intermediate region 11c has a shape in which the width in the y direction is continuously narrowed.
As a result, compared to a configuration in which the intermediate region 11c has a sharp region such as a stepped shape, the contact portion 11 is less likely to break due to bending in the second bonding step.

(Effect of using curing accelerator)
In the accelerator applying step, a hardening accelerator is applied to the surface of the contact portion 11 facing the nail plate 20, and in the first bonding step and the second bonding step, the adhesive 46 applied to the nail plate 20 is contacted. do.
This makes it possible to complete the bonding between the nail correction device 10 and the nail plate 20 earlier than in the case where no curing accelerator is used.
In addition, since it is easier to apply a large amount of the adhesive 46 to the entire adhesion area when applying to the wide nail plate 20 compared to applying to the contact portion 11, the adhesive 46 is applied to the nail plate 20, It is desirable to apply a curing accelerator to the contact portion 11 . However, a configuration in which the curing accelerator is applied to the nail plate 20 and the adhesive 46 is applied to the contact portion 11 may be employed.

(Effect of using photocuring)
By using a photocurable adhesive as the adhesive 46 , the adhesive 46 leaked from between the nail correction device 10 and the nail plate 20 can be cured early using the light irradiation device 49 .

(Effect of the contact portion 11 contacting both sides of the side portion of the nail plate 20)
In addition, the first end region 11a adheres to the first side portion 21 of the nail plate 20, the intermediate region 11c adheres to the central portion of the nail plate 20, and the second end region 11b or the intermediate region 11c adheres to the nail plate 20. second side 22 of the .
Therefore, not only the side of the nail plate 20 on which the first side portion 21 is located, but also the side of the nail plate 20 on which the second side portion 22 is located can be corrected at once.

(Application examples of materials constituting the nail corrector 10)
In this embodiment, an example in which the nail correction device 10 is made of cellulose nanofiber, ABS resin, or the like has been described. However, the nail corrector 10 may include antibacterial and/or antiviral materials.
For example, compositions produced based on micronized metals (silver, copper, etc.) with at least one of antibacterial and/or antiviral properties (inert effect on viruses), at least one of antibacterial and antiviral properties is included in the nail correction device 10 as the antibacterial and/or antiviral material.
Specifically, about 5% by weight of the entire nail straightening device 10 contains a composition based on finely divided copper as at least one of the antibacterial material and the antiviral material. Configurations included in instrument 10 are contemplated.

(Effect of including antibacterial material)
Bacteria, viruses, fungi, etc. are less likely to proliferate on the nail correction device 10.例文帳に追加

(Effect of containing copper)
When copper is included in the material, not only is the antibacterial and antiviral effect obtained, but the nail corrector 10 is made of a brownish transparent material. As a result, the nail correction device 10 becomes closer to the color of the patient's nail plate and skin than when it is made of a colorless and transparent material, and the nail correction device 10 is less conspicuous when attached to the patient's nail plate. I can.

While several embodiments of the invention have been described, these embodiments have been presented by way of example and are not intended to limit the scope of the invention. These embodiments can be implemented in various other forms, and various omissions, replacements, and modifications can be made without departing from the scope of the invention. These embodiments and their modifications are included in the scope and spirit of the invention, as well as the scope of the invention described in the claims and equivalents thereof.

REFERENCE SIGNS LIST 10 nail corrector 11 contact portion 11a first end region 11a1 flat portion 11b second end region 11c intermediate region 12 convex portion 13 grip portion 20 nail plate (nail plate of nail to be corrected for ingrown toenail)
21 first side (one of the sides of the nail plate)
22 second side (other side of nail plate)
41 Polishing tool 43 Dust collector 45 Accelerator application brush 46 Adhesive 47 Adhesive container 49 Light irradiation device 50 Irradiation area 51 Manual tool A Area to be pressed

Claims (13)

a contact portion having a first end region, a second end region, and an intermediate region between the first end region and the second end region;
The length in the first direction, which is the direction in which the first end region, the intermediate region, and the second end region of the contact portion are arranged, is the length of one of the side nail plate edges of the nail to be corrected and the length of the nail. The contact portion is formed to be longer than the length between the other side nail edge,
wherein the first end region and the intermediate region are in contact with the nail plate of the nail to be corrected;
said second end region protrudes from an area with said nail plate when said first end region and said intermediate region are attached to said nail plate;
said first end region is fixed to one of the sides of said nail plate only by gluing;
The intermediate region is at least in the region between one of the sides of the nail plate and the other of the sides of the nail plate, and the first end region is fixed to and contacts one of the sides of the nail plate. A nail corrector fixed with an adhesive in a state where a part is elastically deformed by bending. The lower surface of the contact portion has a planar shape,
the rear side of the upper surface of the first end region in a second direction perpendicular to the first direction has a planar portion;
The nail corrector according to claim 1, wherein the front side in the second direction of the upper surface of the first end region has a protrusion. On the rear side of the protrusion in the second direction, the side opposite to the side of the first end region in contact with the intermediate region is located further than the side of the first end region in contact with the intermediate region. 3. The nail corrector according to claim 2, having a shoe-like shape that approaches the rearward end in the second direction of the lower region. 4. The nail corrector according to claim 2 or 3, further comprising a gripping portion formed integrally with the convex portion and having a shape protruding from the first end region in the second direction. the first end region is wider in a second direction perpendicular to the first direction than the second end region;
The intermediate region has a shape in which the width in the second direction continuously and smoothly narrows from the side where the first end region is located to the side where the second end region is located. The nail corrector according to claim 1, wherein the front side in the direction is straight and the rear side in the second direction is curved. The nail corrector according to any one of claims 1 to 5, wherein a portion of one of the second end region and the intermediate region is fixed to the other of the sides of the nail plate by adhesive. At least one of a composition based on a micronized metal having at least one of antibacterial and antiviral properties and a glass material incorporating a metal having at least one of antibacterial and antiviral properties is applied to the nail. The nail corrector according to any one of claims 1 to 6, which is included in a corrector. A nail corrector according to any preceding claim, wherein the composition based on micronized copper comprises 5% by weight of said nail corrector. 1. A method of using a nail corrector having a contact portion having a first end region, a second end region, and an intermediate region between the first end region and the second end region, comprising:
The length in the first direction, which is the direction in which the first end region, the intermediate region, and the second end region of the contact portion are arranged, is the length of one of the side nail plate edges of the nail to be corrected and the length of the nail. The contact portion is formed to be longer than the length between the other side nail edge,
wherein the first end region and the intermediate region are in contact with the nail plate of the nail to be corrected;
said second end region protrudes from an area with said nail plate when said first end region and said intermediate region are attached to said nail plate;
a first bonding step of fixing the first end region to one of the sides of the nail plate only by bonding;
The intermediate region is fixed to at least a region between one of the sides of the nail plate and the other of the sides of the nail plate, and the first end region is fixed to and in contact with one of the sides of the nail plate. and a second bonding step of fixing the portion elastically deformed by bending by bonding. further comprising an accelerator application step of applying a curing accelerator to one of the nail corrector and the nail plate;
The adhesive used in the bonding in the first bonding step and the second bonding step is a photocurable adhesive,
10. The method of claim 9, further comprising a photo-curing step of irradiating light on the adhesive remaining in the area of the nail plate where the nail corrector is not attached. The curing accelerator is applied to the nail corrector using a brush,
11. Use according to claim 10, wherein the adhesive is applied to the nail plate from the adhesive container. a cutting step of cutting off the second end region after the second bonding step;
12. The method according to claim 11, further comprising a polishing step of polishing the surface of said nail-bonded area of said nail corrector. A nail corrector comprising a contact portion having a first end region having a planar portion and a convex portion, a second end region, and an intermediate region between said first and second end regions. comprising:
The length in the first direction, which is the direction in which the first end region, the intermediate region, and the second end region of the contact portion are arranged, is the length of one of the side nail plate edges of the nail to be corrected and the length of the nail. The contact portion is formed to be longer than the length between the other side nail edge,
wherein the first end region and the intermediate region are in contact with the nail plate of the nail to be corrected;
said second end region protrudes from an area with said nail plate when said first end region and said intermediate region are attached to said nail plate;
The flat portion of the first end region is fixed to one of the side portions of the nail plate only by adhesion while the convex portion is pressed against the portion without the nail plate with the tip of the finger. a bonding process;
The intermediate region is fixed to at least a region between one of the sides of the nail plate and the other of the sides of the nail plate, and the first end region is fixed to and in contact with one of the sides of the nail plate. and a second bonding step of fixing the portion elastically deformed by bending by bonding.

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