JP2003265508A - Ingrown nail correcting appliance - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an ingrown nail correcting appliance which can be inexpensively manufactured of a versatile material to sell in a general retail store to be easily removed and easily acquired by easily acquiring and mounting the appliance by a patient himself without depending upon a doctor or a specialist to correct an ingrown nail and in which a safety is considered. <P>SOLUTION: The ingrown nail correcting appliance comprises a turning end 3 or a fixed end 2 for mounting a nail in a procedure of engaging the nail with a nail side end of an extended nail part, and an extendible correcting part 1 having a rubber elasticity or a bend correcting part 5 having an elastic restoring force against a bend so as to operate a correcting force by connecting to the end 3 or the end 2. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is mounted on a fingernail of a human body having an incurvated nail and corrects the ingrown nail and the ingrown nail caused by the ingrown nail, as well as the ingrown nail and the ingrown nail. The present invention relates to an incurvated nail correction tool for reducing finger irritation caused by.

[0002]

2. Description of the Related Art An ingrown nail means a state in which the corners of the side edges of the nail are pierced into the meat to cause inflammation. In many cases where the corners of the nail extend in a direction that pierces the meat, the nail is in a rolled-up nail state. Ingrown toenails and ingrown toenails tend to occur on the toes that are compressed by shoes, especially on the big outermost thumb, and the thumb nail is large and hard in the foot, so it pierced the meat. If the irritation is large, it causes inflammation and purulence.

FIG. 29 is a perspective view showing how to grow a normal toe nail. On the other hand, the winding claw is deformed so that the claw side end 22a is wound into the meat, as shown in a perspective view in FIG. Since the nail-side end 22a penetrates into the meat, the meat in this portion is likely to cause pain and inflammation, and the nail-side angle 22 that is the angle between the nail-side end 22a and the nail tip 22b.
Since c crawls into the meat and grows, it is severely stabbed in the meat. The pain is temporarily relieved if the nail tip angle 22c that is cut by cutting the nail is removed, but as the nail grows, the pain is repeated again. The first way to reduce the symptoms of ingrown toenails is to keep the tip of the nail 22c out of the meat.
That is, it is necessary to extend the nail so that the nail tip corner 22c is not pierced because it does not cut unnecessarily because it hurts. FIG. 30 shows a state in which the tip end angle 22c of the nail is extended and put out of the meat. However, when the nail is cut short, the tip end angle 22c of the nail is buried in the meat and is originally visible. Absent. The part shown by the broken line in the figure shows the boundary of the part where the claw and the meat are in close contact, and the range from the broken line to the claw tip 22b shows the part that can be cut by nail cutting. The part is stretched without being cut. In order to extend the nail tip angle 22c to the outside of the meat while reducing the pain, it is usually effective to pack absorbent cotton between the meat and the nail tip angle 22c, which is called cotton packing. Originally, it is said that the cause of the incurvated nail is that the nail end 22a is deeply nailed for many years, and further, wearing tight shoes. When the meat around the finger is pressed toward the center of the finger by the pressure of the shoes, etc., the deep-clawed nail-side end 22a is hampered by the meat at the place where it should extend straight,
It wraps into the meat as if it were rolled, and it grows. At the same time, the speed at which the nails are made does not change, so the nails that do not grow normally become thicker. By continuing this for many years, the root part where the nail grows will be deformed, and it will not be cured without some treatment.

The treatment of ingrown nails and ingrown nails is divided into two methods: a method of restoring the shape of the nails to normal by correction, and a method of excising a deformed area of the nails by surgery. There are roughly two methods of applying a correction force to the nail for correction. Figure 3
FIG. 1 is a front view showing one of them, as viewed from the tip side of the nail. The arrow pointing upward in the figure indicates the direction in which the correction force is applied, but applying the correction force generally upward in the nail side end 22a in this way makes the rolled nail flat. There is a direct action to return, and efficient correction can be performed. Further, FIG. 32 is a front view showing another action direction of the correction force. In this method, a force approximately in the direction of the arrow is applied from the surface side of the nail toward the inside of the nail.
Although the force is applied in such a direction as to reduce the width of the nail, the width of the nail is not easily reduced, and thus the applied force has a correction effect of turning up the nail side end 22a in a direction in which it becomes flat. The correction can be performed by either method, and the direction in which the force is applied differs depending on the configuration of the correction tool, the mounting method, and the like. For straightening, first flatten the rolled nails. The closer to the tip of the nail, the weaker the correction force can be. By applying the correction force from the vicinity of the tip of the nail, the correction force extends to the vicinity of the base of the nail, and although it takes a period of several months or more, the base can be corrected. Further, by flattening the vicinity of the tip of the nail, the nail extends without being disturbed by the surrounding meat, so that the nail is thinned to its original thickness, regaining flexibility and improving the correction effect. Therefore, it can be considered that the correction requires a period of time in which the nail is almost replaced once. Normally, the nail grows by about 2 mm per month. Therefore, a half to one year is a standard for an adult big toe.

FIG. 33 is a perspective view showing an example of a conventional correction method. The correction plate 31 is adhered to the surface of the rolled nail. The corrective plate 31 is made of a shape memory alloy or a plastic plate having elasticity, and these are adhered to the nail surface with an adhesive so that the corrective plate 31 can be flattened at the same time by the restoring force to restore the flatness. It is to try. The direction of action of the correction force is indicated by an arrow, and this direction indicates that the correction force acts upward on the nail surface shown in FIG. The problem with this correction method is that since the correction plate 31 must be adhered to the nail, it takes time and effort to adhere it, and the correction position is not correct because the adhesion position is wrong or the correction plate 31 is not correct. There is a point that can not be removed. For this reason, a professional technician or a doctor is usually used for this correction, and therefore the correction plate 31 is not generally available on the market. Also, until the correction effect is obtained, the nail-side end 22a remains in the flesh, and there is a problem that the pain caused by this is not eliminated.

Other conventional correction methods include:
There is a method using a straightening wire 32 as shown in FIG. The straightening wire 32 is made of metal having a strong elastic restoring force, and is attached by making a hole in the nail and adhering around the hole so as not to shift. The direction in which the correction force acts is shown by the arrow in the figure,
It is almost the same as FIG. 31 and is in the upward direction. Although the correction force is strong, there is also a risk that the nail will be cracked by the hard correction wire 32, so adhesion is necessary to prevent it, and once attached, it cannot be easily removed.
It is usually installed by a doctor. Furthermore, FIG.
It is a perspective view which shows the conventional method using a wire-shaped correction tool. The wire with loop 33 is used for correction. The end of the wire is hooked and fixed to the claw-side end 22a. If there is a loop near the center of the correction tool and if this loop is originally elastic, the correction force will be in the direction indicated by the arrow in the figure, that is, the direction shown in FIG. 32. Also serves as a fine adjustment for. That is, when the correction tool is too large compared to the width of the nail, the diameter of this loop is deformed to be small and adjusted. To transform it,
The elastic restoring force will also not work, and rather than being corrected by elasticity, stress that keeps pulling with the wire acts on the nail. Without straightening using elastic restoring forces, the risk of damaging the nail increases. That is, when the nail is greatly deformed by an external force due to an exercise or the like, it is possible to follow the instantaneous deformation of the nail due to the elasticity of the correction tool. This is because, for example, when a correction tool having no elastic deformation and high rigidity is attached to the nail, the correction tool does not deform at all due to a momentary deformation of the nail, so that the nail of the mounted portion is cracked.
Furthermore, since the correction tool of FIG. 35 has a loop, it is considered that the correction tool in the attached state may rotate and the loop may move, and it is preferable to use it by adhering it to the nail. Further, as a conventional method not shown, there is also a method of gradually strengthening the correction force by twisting the loop attached to the center of the wire-shaped correction tool, but as the number of parts increases, the projection on the nail surface becomes larger, Not very suitable for women who wear stockings. Also in this method, attachment and adjustment of the correction force are generally performed by an engineer or a doctor.

What is common to the conventional correction methods is that it is difficult to select a correction force and a correction tool is attached, and it is usually treated by a doctor or a professional engineer. If an expensive material such as a shape memory material is used, it is necessary to attach it without fail. In addition, since many of them are attached by adhesion, they cannot be easily removed even if a problem such as pain occurs. Therefore, the correction tool itself is not commercially available at retail stores. In addition, there is a limited number of facilities for orthodontic treatment and there are no facilities in the neighborhood.
In addition, the cost of orthodontic treatment, including the material fee, is several thousand yen or more and more at present. Also,
In orthodontic treatment, it is rare to cure completely with a single treatment, and it is usual to repeat the same treatment several times to cure for several months to a year, so in terms of cost and when the treatment facility is far away, The burden on the patient is heavy.

Other than correction, there is surgical excision of the ingrown nail portion. If you go to a nearby orthopedic department or dermatologist, you can get treatment. The outline of the incurvated nail surgery is shown in a perspective view in FIG. In the surgery, the portion shown by the diagonal lines from the vicinity shown by the broken line in the figure to the outer nail side end 22a is usually excised. When the nail is grown again on the excised part, it is wound, so in order to prevent it from growing again, it is excised from the part which is the base of the nail, although not shown in the figure. Although anesthesia is used, there is also a problem in that there is post-operative pain and the width of the remaining nail after the excision becomes narrow. In addition, small nails may grow from the excised part to branch off, leaving a problem.

[0009]

When treating ingrown toenails or ingrown toenails by a method of correction in which the width of the nail is not narrowed, it is difficult to obtain a corrective tool, and even if it is available, it is necessary to install the corrective tool. Is difficult and requires treatment from a doctor or specialist. Further, the material cost and the treatment cost are high at present.
An object of the present invention is to make it possible to sell an incurvated nail correction tool at a retail store such as a pharmacy and a health goods store at low cost, and as a condition therefor, it is possible to manufacture not only a special material but also a general-purpose material, and It is an object of the present invention to provide an ingrown nail correction tool that can be easily installed by a purchased patient by himself without adhering to nails and can be easily removed when there is no need or when there is a problem. In addition, even if the nail is not attached after adjustment, the correction force by elastic restoring force always works just by attaching it, and it also prevents the nail from sticking to the meat, and it is a safe ingrown nail that does not cause trouble such as cracking of the nail due to correction. It is to provide a correction tool. Another object of the present invention is to provide an incurvated nail correction tool that can be easily removed while minimizing falling off during daily activities such as walking and sitting.

[0010]

The incurvated nail correction tool according to the present invention has the following points in common with any one of claims 1, 2, 3, 4, and 5. First, the position where the incurvated nail correction tool is attached will be described with reference to the perspective view of FIG. 30. The incurvated nail correction tool is attached to the nail side end 22a between the position indicated by the broken line and the nail tip 22b. The broken line in the figure shows the boundary of the part where the claw and the meat are in close contact. From the broken line to the tip 22b of the claw, the part where the claw is apart from the meat is a part that can be cut with a nail clipper. is there. The incurvated nail correction tool according to the present invention is attached to the extended portion of the nail. The length for extending the nail for attachment is about 3 mm, and with this length, the tip 22b of the nail usually does not protrude beyond the tip of the finger 21 and is in the range that does not interfere. Further, when extending the nail, by extending a portion near the nail tip angle 22c as shown in FIG. 30 and cutting with a nail clipper so as not to extend much near the center of the nail tip 22b, if the extended nail is an obstacle. And easy to put on. Since it is attached to the extended part of the nail, even if something goes wrong with the nail, the raw nail will not be peeled off. In addition, the claw tip angle 22c and the claw side end 2 of the attached part
Since the 2a cannot contact the meat, the pain is relieved only by attaching it. Furthermore, the incurvated nail correction tool according to the present invention does not adhere to the nail when it is attached. This makes it possible to immediately remove the sandals if you do not want them to be seen by others, such as wearing sandals with bare feet. Further, the removed incurvated nail correction tool can be reattached. In addition, the incurvated nail correction tool according to the present invention does not adjust the correction force when it is attached to the nail. Further, compared with the conventional method using the shape memory material, it is not necessary to warm it up, and a correction force is generated at the time of wearing, so that the correction force always works.
And if you don't want to correct it, you can easily remove it. In addition to the common points described above, the solution means characterized by the invention of each claim will be described below.

An incurvated nail correction tool according to a first aspect of the invention is provided with an expansion / contraction correction part for applying a correction force. The stretch correction section
A polymer material is used to form an elongated shape and has rubber elasticity at room temperature. That is, the stretch correction portion is attached to the nail in a stretched state, and the force of contraction due to rubber elasticity is applied in the direction necessary for correction. In order to attach the expansion / contraction correction unit to the nail, folding ends are provided at both ends of the expansion / contraction correction unit. The folded-back end has a shape in which one end is connected to the stretch-correction unit and the other end is folded back toward the stretch-correction unit. The shape of the folded-back part from the front is generally U-shaped. The folded back portion is hooked and fixed to the claw side end.
Since the elastic restoring force works from the time of attachment, the incurvated nail correction tool comes into close contact with the surface of the nail and does not come off in daily operation. If you wear socks or stockings and cover it, you can prevent it from falling off even during intense exercise. When removing it, you can easily remove it by pinching one of the folded ends with your fingertips and sliding it toward the tip of the nail. For this reason, the folded-back end needs to be made of a material that is hard to some extent so as not to be deformed by the elastic restoring force of the expansion and contraction correction part, but is called a general-purpose plastic or engineering plastic such as polyvinyl chloride, ABS resin, polyethylene terephthalate. Most can be used. Furthermore, although metals can be used, it is important to select materials that are easy to process and inexpensive. In addition to natural rubber, synthetic rubber materials such as polyurethane rubber and silicone rubber can be used for the stretch correction portion, and fibrous rubber materials woven or knitted with threads can also be used. The connection between the stretch correction portion and the folded end differs depending on the material, but for example, insert molding, heat fusion, or adhesive bonding can be used. When the folded end is made of metal, a method of bending and crimping is also possible. When the folded end is made of metal, it can be coated with a synthetic resin in advance, so that the hard feel when attached can be alleviated. The incurvated nail correction tool according to the present invention can be attached to nails of any curled shape by forming the folding end to be smaller, and since a flexible rubber material is used for the correction portion, it is possible to reduce the size of nails among individuals. Since it is also possible to deal with it and it is possible to make it free size, it is possible to reduce the manufacturing cost by minimizing the types of molds and equipment.

In the incurvated nail correction tool according to a second aspect of the present invention, an elongated straightening portion and fixed ends are provided at both ends of the straightening portion. Both the stretch correction portion and the fixed end are integrally molded using a polymer material having rubber elasticity at room temperature. Most rubber materials that can be molded, such as polyurethane rubber and silicone rubber, can be used. It is fixed to the nail by pushing the fixed end into the inside of the nail-side end, but since the fixed end is also a flexible rubber, it does not cause pain. When the fixed end is put inside the claw-side end, the expansion / contraction correction unit is extended while the fixed end is attached, and the elastic restoring force of the expansion / contraction correction unit exerts a correction force. Since the fixed end is also made of a flexible material, the fixed end has a larger cross-sectional area than that of the expansion and contraction correction portion, and is prevented from being separated from the claw side end. Since the elastic restoring force works from the time of attachment, the incurvated nail correction tool comes into close contact with the surface of the nail and does not come off in daily operation. Wearing socks or stockings to cover them will prevent them from coming off unexpectedly.
The incurvated nail correction tool according to the present invention can be manufactured at a low cost because it can be manufactured by molding the same material once. However, since the fixed end is flexible, it may come off when manufactured with a strong correction force of the expansion / contraction correction unit, and it is suitable for a case of correcting with a weak correction force for a long period of time.

An incurvated nail correction tool according to a third aspect of the present invention uses two correction bodies connected to each other, and the two correction bodies are respectively provided with a stretch correction portion and a turnback provided at one end of the stretch correction portion. It consists of an end and a connecting end provided at the end on the side without the folded end. The stretch-correction section is made of a long and thin polymer material having rubber elasticity at room temperature, and the folded end and the connecting end are made of a hard material that is not deformed by the elastic restoring force of the stretch-correction section.
The folded end has a shape that is folded into a generally U-shape with the end facing the side of the stretch correction part. As the material of the folded end and the connecting end, most of what are called general-purpose plastics or engineering plastics such as polyvinyl chloride, ABS resin, polyethylene terephthalate can be used. Further, metals can be used. The stretch correction section
In addition to natural rubber, synthetic rubber materials such as polyurethane rubber and silicone rubber can be used, and fibrous rubber materials woven or knitted with threads can also be used. The connection between the stretch correction part, the folded end and the connecting end differs depending on the material used,
For example, a method of using insert molding or heat fusion, a method of bonding with an adhesive, or a method of bending and crimping when the folded end or the connection end is made of metal are also possible. When the folded end is made of metal, it can be coated with a synthetic resin in advance, so that the hard feel when attached can be alleviated.
In the incurvated nail correction tool according to the present invention, first, the two folded ends of the respective correction bodies are fixed by hooking the ends on the nail side. Then, by connecting the connecting ends while extending the expansion / contraction correction parts of the two correction bodies, the correction force by the elastic restoring force of the expansion / contraction correction part acts. Since the elastic restoring force works from the time of attachment, the incurvated nail correction tool comes into close contact with the surface of the nail and does not come off in daily operation. Wearing socks or stockings to cover them will prevent them from coming off unexpectedly. When removing it, you can easily remove it by pinching one of the folded ends with your fingertips and sliding it toward the tip of the nail. The use of two straightening bodies increases the number of parts and the manufacturing process in manufacturing, but for example, the shape of the folded end is A type, B
When two types are manufactured, there are three types of combinations to sell: one that uses two A types, one that uses two B types, and one that uses one A type and one B type. You can make combinations. This is effective for dealing with individual differences such as when one side of the nail is wound extremely strongly, an extremely large nail, and an extremely small nail with a small manufacturing cost. Further, since the folded end is a hard material that is hard to be deformed, it is desirable that the folded end has a shape that follows the degree of winding of the mounting portion. In the case of free-sizing, it is necessary to make the folding end as small as possible and perform precision molding, but by increasing the types according to the claw shape, it is possible to make the folding end somewhat large, reducing the processing accuracy and cost. Can be lowered.

The incurvated nail correction tool according to a fourth aspect is formed by using a plastic plate or a metal plate and forming a strip-shaped elongated straightening portion, and forming the same material as the bending straightening portion at both ends of the straightening portion. It is composed of folded ends. The folding end has a U-shaped bent shape toward the bending straightening portion side, and the bending straightening portion is formed wider than the folding back end to exert a large straightening force. The incurvated nail correction tool according to the present invention is in the form of a single hard plate as a whole.
Therefore, the plate is attached in a bent state, and the force of the bent plate to return to its original shape by the elastic restoring force acts as the correction force. Since it is a hard material, unlike the case of a material having rubber elasticity, the incurvated nail correction tool cannot be stretched and attached. The incurvated nail correction device according to the present invention is first held in the fingertips of the hand and slightly bent, and then inserted into the nails from the tip side of the toenail of the toe to be corrected, as if a pencil was capped. To do. At this time, it is easy to insert the folding end on one side and further bend the bending corrector along the nail surface while inserting the other folding end. Corrective force is applied when the hand is released after insertion. Since the elastic restoring force always works, it sticks to the nail surface and cannot be dislodged in daily operation. If you wear socks or stockings and cover it, you can prevent it from falling off during intense exercise. To remove it, use your fingertips to slide the incurvated nail corrector in the opposite direction from when it was attached. Since it is a hard material, it is desirable to make it thin. The bend straightening portion is formed to have a large width in order to obtain a straightening force even when it is thin using an inexpensive material. It is possible to make it large enough to spread over the entire nail surface. Since the incurvated nail correction tool according to the present invention can be manufactured by a single injection molding process for plastic and a single pressing process for metal, the manufacturing cost can be reduced. However, since the hard material is integrally molded, it is necessary to manufacture a plurality of sizes in order to cope with various nail sizes. Further, if the width of the bending correction portion is made large in advance, it becomes possible for the patient to adjust the correction force to his or her preference after the purchase and then attach the bending correction portion. That is, the width of the bending correction portion is cut into small pieces. In the case of plastic, it can be easily cut with scissors. In the case of metal, it is also possible to bend and separate by simultaneously inserting a cutting line that locally thins the plate thickness during pressing. When it is formed of a metal, coating with a synthetic resin can alleviate the discomfort of the metal. As for the concrete material, if you consider only the folded end, many materials can be used with general-purpose plastics, engineering plastics, and metals such as stainless steel with almost no restrictions. Due to the selection restrictions, it is necessary to give priority to the material selection for the bending straightening section. It is necessary that the material used for the bending correction portion has a proper elastic restoring force without being plastically deformed when bent along the wound nail. Further, the thickness which is not disturbed when it is attached to the nail depends on the shoes to be worn, but is preferably about 2 mm or less. Therefore, in the case of metal, it is preferable to use spring steel. In the case of plastics, engineering plastics, fiber reinforced plastics, laminated plastics, and special materials may be developed, but even commonly used materials such as polyvinyl chloride and polyethylene terephthalate can be attached to the ingrown nails. As a result, an appropriate elastic restoring force could be maintained. Also ABS
The resin was able to be attached, but if it was removed after a certain amount of bending for a week and then bent further, it was more brittle and easier to crack than other materials. Good. Further, as a drawback of plastics, there is a case where, when bending and attaching by hand, if only a specific portion is bent, it is easily plastically deformed and becomes cloudy. Care must be taken to bend it lightly by hand and insert it into the nail, and bend it further along the surface of the nail. As a method of preventing plastic deformation at the time of use, there is a method of forming in a pre-bent state. By forming it with some curves beforehand, such as radii of 40 mm and 50 mm,
After that, the amount of bending for mounting on the nail is reduced, and plastic deformation can be prevented. Especially for strong ingrown nails, it is better to bend and mold them in advance. When it is bent in advance, the elastic restoring force after attachment is small, but since it is a strong ingrown nail, a strong correction force is not necessary. A strong ingrown nail requires more time to straighten, rather a too strong straightening force leads to nail breakage. Plastic such as acrylic, which has a high glass transition temperature, is hard and brittle at room temperature, but even if it is acrylic, it can be corrected by pre-bending it and reducing the amount of bending when mounting it on the nails. be able to. In addition, thin polyethylene terephthalate having a thickness of 0.5 mm or less can be flexibly bent without plastic deformation, but the correction force is weakened accordingly. In order to make the material thinner and increase the correction force, it is better to increase the width of the bending correction part as described above, but as another method, bend it in the opposite direction to the rolled nail and shape it. There is a way. By bending the nail in the opposite direction to the winding of the nail, the amount by which the incurvated nail corrector is bent when attached to the nail is increased, and the correction force can be increased in a thin material.

An incurvated nail correction tool according to a fifth aspect is an incurvated nail correction tool that is used by connecting two correction bodies, and each of the two correction bodies has a bending correction portion and one end portion of the bending correction portion. A bent end integrally formed of the same material as the bending correction portion is provided. The bend straightening part is made of a plastic plate or a metal plate so as to have an elastic restoring force against bending stress, and is formed into an elongated band shape. The folded end is folded in a U shape with its end facing the bend straightening part side. The shape is The incurvated nail correction tool according to the present invention exerts a correction force when the ends of the bending correction portions of the two correction bodies having the above-described configurations on the side having no folded end are overlapped and connected. There are two ways to make this connection. One is a method of pre-bonding two correction bodies. First, the patient attaches the folded ends of the two correction bodies to the nail-side ends, respectively, and then determines the position where the two bending correction portions are bonded in a stacked manner. At this time, it may be marked with a marker, but if the bending correction portion has a scale at the manufacturing stage, it is only necessary to remember the position of the scale. afterwards,
In a natural state where the straightening body is removed from the nail and no bending stress is applied, the straightening portions are glued at the previously marked positions with an instant adhesive or the like. After the bonding is completed, the incurvated nail correction tool connected to one is manually held and bent, and is inserted and attached from the tip side of the nail to be corrected. Another method is to pre-form a connection part that can be fixed without an adhesive agent at the end of the bending correction part on the side without the folded end of the two correction bodies. Although the manufacturing cost is increased, it is possible to reduce the labor of the patient and make the mounting easier. The advantage of using two orthodontic bodies is, for example, when two types of folded end shapes, A type and B type, are manufactured, the combination when selling is to use two A types and two B types. What to do, A type and B
You can make three types of combinations, one for each type. This is effective in reducing the selling price by responding to the individual differences such as the case where only one side of the nail is wound extremely strongly, the extremely large nail, and the extremely small nail with a small manufacturing cost. In addition, by changing the overlapping length of the bending correction portions at the time of connection, it is possible to sufficiently cope with individual differences in nail size. After mounting, the elastic restoring force always works, so it sticks to the nail surface and cannot be removed in daily operation.
If you wear socks or stockings and cover it, you can prevent it from falling off during intense exercise. To remove it, pinch it with your fingertips and slide the incurvated nail correction tool toward the tip of the nail. As for the material, it is necessary that the bending correction portion does not undergo plastic deformation even when bent along the incurvated claw and has an appropriate elastic restoring force. It is sufficient that the folding end has such strength that the folded portion is not deformed during straightening, and therefore a material suitable for the bending straightening portion may be selected. Further, the thickness which is not disturbed when it is attached to the nail depends on the shoes to be worn, but is preferably about 2 mm or less. Therefore, in the case of metal, it is preferable to use spring steel. In the case of plastics, engineering plastics, fiber reinforced plastics, laminated plastics, and special materials may be developed. However, even general-purpose polyvinyl chloride and polyethylene terephthalate can be attached to the incurvated nails to provide appropriate elasticity. I was able to gain resilience. Further, as a drawback of plastics, when mounting while bending by hand, if only a local portion is bent, it may be easily plastically deformed to become cloudy. Care must be taken to bend it lightly by hand and insert it into the nail, and bend it further along the surface of the nail. As a method of preventing plastic deformation at the time of use, there is a method of forming in a pre-bent state. By forming with a slight curve such as a radius of 40 mm or 50 mm in advance, the amount of bending for mounting on the nail after that becomes small, and plastic deformation can be prevented. Especially for strong ingrown nails, it is better to bend and mold them in advance. When it is bent in advance, the elastic restoring force after attachment is small, but since it is a strong ingrown nail, a strong correction force is not necessary. A strong ingrown nail requires more time to straighten, rather a too strong straightening force leads to nail breakage. Plastic such as acrylic, which has a high glass transition temperature, is hard and brittle at room temperature, but even with acrylic, if it is pre-bent and molded, and the amount of bending is smaller when it is attached to the nail, sufficient correction force is obtained. Can be demonstrated. On the contrary, if the material is thin and flexible and it is difficult to plastically deform, but the correction force is insufficient, the method of forming the width of the bending correction portion to be large will improve the correction force. By bending and shaping in the opposite direction to the winding of the incurvated nail, the amount of bending of the bending correction portion becomes large when the nail is attached to the nail, and the correction force can be increased.

[0016]

DETAILED DESCRIPTION OF THE INVENTION

Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a perspective view showing an embodiment of an incurvated nail correction tool according to claim 1. In FIG. 1, two folding ends 3 formed by folding a general-purpose plastic such as polyvinyl chloride into a shape and a stretch correction portion 1 made of polyurethane rubber having a circular cross section are connected. In this embodiment, the polyurethane rubbers were heat-sealed and fixed after passing the end of the stretch-correcting part 1 through the hole formed in the folded end 3. A diameter of 2 mm or less can be used without any discomfort, and the length of the stretch-correcting part 1 may be slightly shorter than the width of the claw to be attached, including the folding end 3. Stretch correction unit 1
The length of about 5 mm was stretched and mounted, and it could be mounted with an appropriate correction force, and it was not easily displaced. The folded-back end 3 is bent in a substantially U shape, and the inner gap of the bent end is adjusted to the thickness of the claw,
If it is about 1.5 mm, it can be used for most ingrown nails. If it is too narrow, it cannot be inserted into the nail, but there was no discomfort in the direction where it was too wide, so there is no problem even if it is widened to about 2 mm. FIG. 2 is a front view showing an embodiment of the incurvated nail correction tool according to the present invention attached to the nail side end 22a. The nail 22 is shaded to distinguish it from the incurvated nail corrector. For attachment, first, the folded end 3 on one side is hooked on the claw side end 22a, and the stretch correction part 1 is stretched while being hooked on the other claw side end 22a. The direction in which the correction force acts in this state is the arrow direction in the figure, and is the same as the direction shown in FIG. FIG. 3 is a perspective view showing another embodiment of the incurvated nail correction tool according to the present invention, in which the expansion / contraction correction unit 1 has a band shape. The folded-back end 3 is formed in a generally U-shape. In addition, in the present embodiment, an example in which the connecting portion between the stretch correction portion 1 and the folded end 3 is angled is also shown. In the embodiment shown in the figure, the angle is close to 90 °, but by forming such a shape, it is possible to change the direction of the correction force acting on the nail 22. That is,
When placed on the claw 22, the relationship shown in the front view of FIG. 4 is obtained. The nail 22 is shown with diagonal lines to distinguish it from the incurvated nail correction tool. FIG. 5 is a front view showing how the incurvated nail correction tool of the embodiment of FIG. 3 is attached to the nail 22. By attaching the folding end 3 connected to the stretch straightening unit 1 at an angle close to 90 ° in a direction in which the angle disappears, the straightening force by the stretch straightening unit 1 is directed in the direction of the arrow shown in FIG. In addition to acting, a force in the direction in which the folded end 3 tries to return to the original angle also acts, and generally acts in the direction indicated by the arrow in FIG. The direction of the arrow in FIG. 5 is a force in the direction of directly flattening the rolled nail,
Since it is close to the direction indicated by, efficient correction can be performed. Also,
When a large correction force is set, the cross-sectional area of the expansion / contraction correction unit 1 may be increased, but in this case, the expansion / contraction correction unit 1 may be plural. FIG. 6 is a perspective view showing an embodiment in which the two expansion / contraction correction parts 1 are provided and the folding ends 3 are provided at both ends thereof. The orthodontic material was formed into a ring shape. A single material for expansion and contraction correction part is passed through the hole formed in the folded end 3 and the ends are bonded. In order to form the stretch correction portion 1,
Although there is also a method of heat-sealing the ends, in this embodiment, the vinyl tube 11 is used to bond the two ends of the material for the stretch-correcting part through the vinyl tube 11 with an instant adhesive. did. Not only vinyl, but by putting it in a tube and adhering it, the adhering area becomes large and the adhering is completed in a short time of several seconds. This assembling method is suitable for manual assembling without using large-scale equipment. All you have to do is prepare a simple jig. It has a simple structure in which the ring-shaped stretch correction portion 1 is simply passed through the hole of the folding end 3, but at the same time when the folding end 3 is attached to the nail, the ring-shaped stretch correction portion 1 slides through the hole of the folding end 3. And the folded end 3
, Are automatically moved so as to be located at both ends of the stretch correction unit 1. FIG. 7 is also a perspective view showing an embodiment in which two expansion / contraction correction parts 1 are formed using a ring-shaped material for expansion / contraction correction parts.
This embodiment also allows manual assembly, but the folding end 3 is made of metal. A thin hook-shaped protrusion is provided at the end of the metal turn-back end 3, and the material for the expansion and contraction correction unit, which is molded in a ring shape in advance, is aligned, and the hook-shaped protrusion is crushed to be fixed by crimping. It is a thing.

FIG. 8 is a perspective view showing an embodiment of an incurvated nail correction tool according to the present invention. 1.5m cross section
It has a circular m shape and is composed of an elongated straightening portion 1 and a fixed end 2 having a larger cross-sectional area than the straightening portion 1. If the cross-sectional area of the fixed end 2 is made as large as possible, the correction tool can be firmly fixed. The fixed end 2 of this embodiment has a cylindrical shape with a diameter of 2 mm and a length of 3 mm, so that the maximum cross-sectional area is three times or more of the cross-sectional area of the expansion-contraction correction unit 1. The cross-sectional area of the largest part here is a case where it is assumed that the expansion and contraction correction part 1 and the fixed end 2 are cut from the same direction, and the cross-sectional area of the expansion and contraction correction part 1 of this embodiment is a circle with a diameter of 1.5 mm. The maximum cross-sectional area of the fixed end 2 refers to a rectangular area of 2 mm × 3 mm. The expansion and contraction correction unit 1 and the fixed end 2 are integrally formed of a polymer material having the same rubber elasticity. Since they are made of the same material, they can be mass-produced in a single molding process. FIG. 9 is a perspective view showing another embodiment of the present invention. The stretch correction portion 1 is formed in a band shape to widen the width. By increasing the width as a band, it is possible to increase the correction force without increasing the thickness. FIG. 10 is a front view showing the incurvated nail correction tool according to the present invention attached to the incurvated nail portion. In order to distinguish between the incurvated nail correction tool and the nail 22, the portion of the nail 22 is shown by hatching. In the present invention, the claw 22
Fixed surface 2 with a large cross-sectional area
The feature is that it enters the inside of the nail and prevents it from falling off. Nail 2
The fixed end 2 is pushed into the inside of 2, but the fixed end 2
Since it is a soft material, there is no pain. The fixed end 2 that has entered the narrow portion can support the whole incurvated nail correction tool because the nail-side end 22a becomes a wall. In the incurvated nail correction tool according to the present invention, the elastic restoring force of the expansion / contraction correction unit 1 to return to the original length acts generally in the direction indicated by the arrow in the figure, and is the same as the direction shown in FIG. Direction.

FIG. 11 is a perspective view showing an embodiment of the incurvated nail correction tool according to the third aspect of the invention. In the present invention, two correction bodies are used. Each of the two correction bodies is formed of a material having the same property, and is provided with a stretch correction portion 1 having rubber elasticity, and a folding end 3 and a connection end 4 that are not deformed by the elastic restoring force of the stretch correction portion 1. In addition to the natural rubber, the stretch correction unit 1 uses synthetic rubber such as silicone rubber or polyurethane rubber. When polyurethane rubber is used, connection by heat fusion is easy. In this embodiment, an integrated state is shown by insert molding or the like. It is desirable to form the folded end 3 as small as possible, but since a claw is inserted inside the folded end, a gap of about 1.5 mm is provided. Although various shapes of the connecting end 4 are conceivable, this embodiment shows a simple structure in which a hook is hooked in the key hole. Since the elastic restoring force is exerted by the expansion and contraction correction unit 1, it does not easily come off simply by hooking it. It is better to make the connecting end 4 as thin as possible, and it is comfortable to set it within 2 mm when the two connecting ends 4 are overlapped, so the thickness on one side is 1 mm.
The following is desirable. FIG. 12 is a front view showing that the incurvated nail correction tool according to the present invention is about to be attached to the nail 22. The portion of the claw 22 is indicated by diagonal lines. It is shown that the folding ends 3 of the two correction bodies are hooked on the claw-side ends 22a, respectively, and then the expansion / contraction correction unit 1 is stretched by a hand (not shown) to connect the connection ends 4. In the incurvated nail correction tool according to the present invention, the elastic restoring force of the expansion / contraction correction unit 1 to return to the original length generally acts in the direction shown by the arrow in the figure, and is the same as the direction shown in FIG. is there.

FIG. 13 is a front view for explaining an example of the shape of the folding end 3, and illustrates only the portion of the folding end 3 of claims 1 and 3 of the incurvated nail correction tool according to the present invention. ing. The figure shows a normal claw on the right side of the figure and an extremely thick and strongly wound claw on the left side of the figure. In the case of a normal winding nail, the folding end 3 may be formed by bending one portion in a U-shape, but in the case of the winding nail on the left side of the figure, the folding end 3 may be bent entirely or may be bent at a plurality of locations. Or you can wear it without feeling discomfort by molding it so that it follows the shape of the claw as much as possible.

FIG. 14 is a perspective view showing an embodiment of an incurvated nail correction tool according to the invention of claim 4. The bending straightening portion 5 and the folded end 3 were integrally formed. Since the folding end 3 is attached to the extended portion of the nail, the width is about 3 mm, but the width of the bending correction portion 5 is formed to be considerably larger than the width of the folding end 3 in order to increase the correction force. It is a feature. Here, the width of the bending correction portion 5 is the length of the portion shown by the double-sided arrow in the figure. In the case of an adult, taking the big toe as an example, since the length from the hairline of the nail is 10 mm or more, the width of the bending correction portion 5 can be increased to about 10 mm. Further, in the embodiment shown in FIG. 14, polyvinyl chloride and polyethylene terephthalate, which are versatile and inexpensive, are used as the material, and the thickness is set to 0.7 to 1 mm, so that they can be attached to a strongly wound nail. In order to prevent plastic deformation, the whole is preliminarily bent. vice versa,
In the case of a thin material with a thickness of about 0.5 mm, plastic deformation is hard to occur, but the correction force is weak. Therefore, although not shown, by bending in advance in the opposite direction to the embodiment of FIG. It is also possible to increase the correction amount by increasing the bending amount when mounting. A thickness of about 1 mm did not cause any discomfort when wearing shoes for men with wide tips. When wearing shoes with narrow toes like women, it is better to use a thinner material. FIG. 15 is a perspective view showing a state where the incurvated nail correction tool according to the present invention is being attached. The state is shown in which the bending correction portion 5 is held by the fingers of the hand and is slightly bent. Then, as shown in the perspective view of FIG. 16, the mounting is performed from the side of the nail tip 22b. Generally, the incurvated nail correction tool is inserted in the direction of the arrow in the figure. Although illustration of the hands is omitted, it may be difficult to fit the nails on both nail side ends 22a at once at the same time. It can be attached smoothly by inserting it into the other side 22a of the nail 22a while inserting the same into the surface 22a of the nail 22 and bending the incurvated nail corrector along the surface of the nail 22. FIG. 17 is a front view showing a state in which the mounting is completed, and the claws 22 are shown by hatching for distinguishing the claws 22. By bending and attaching the bending correction portion 5, an elastic restoring force that tries to return to the original shape works,
The acting direction is roughly the direction indicated by the arrow in the figure, and is the same as the direction previously shown in FIG.

FIG. 18 is a perspective view showing an embodiment of the incurvated nail correction tool according to the invention of claim 5. In the present invention, two correction bodies are used. Each of the two straightening bodies has a bending straightening portion 5 and a folding back end 3, respectively.
Are integrally molded using the same material. It can be mass-produced by pressing for metal and injection molding for plastic. In the incurvated nail correction tool according to the present invention, the ends of the bending correction portions 5 of the respective correction bodies are overlapped and connected to each other, whereby the two correction bodies are integrated and exert a correction force. FIG. 19 is a front view showing how the incurvated nail correction tool is temporarily attached for size adjustment with the nail 22. In order to distinguish the claws 22, the claws 22 are shown by hatching. For the two straightening bodies, first, the folded ends 3 are fixed first, and then the straightening portion 5 is fixed to the nail 2.
While bending along the surface of 2, the position is adjusted so that the two straightening portions 5 overlap. FIG. 20 is a perspective view showing a state in which the ends of the two bending correction parts 5 are completely overlapped.
By stacking the bending correction section 5 with the folding end 3 attached to the nail side end 22a, the size of the incurvated nail correction tool that matches the size of the nail 22 to be corrected can be confirmed. If you connect and fix the two bending correction parts 5 at this position,
The correction force can be applied in the direction indicated by the arrow in the figure. Although the figure is a perspective view, the direction indicated by this arrow is
This means that a correction force is applied to the surface of the nail indicated by an arrow in FIG. 31 in a generally upward direction. Figure 2
Reference numeral 0 indicates a finger (not shown) that only presses the incurvated nail correction tool, so that the stacked bending correction section 5 must be separately fixed. An example of a method of fixing the bending correction section 5 is a method of adhering. Although it is possible to apply the adhesive in the state shown in FIG. 20, in this state, there is a risk that the adhesive may adhere to the nail, and since the elastic restoring force acts on the bending correction portion 5, the adhesive position is displaced. There is also a danger. One of the best methods is to mark the extent to which the straightening portions 5 overlap with each other with a marker or the like in the state shown in FIG. After making the mark, remove the two corrective bodies, apply the adhesive in a natural state where elastic restoring force is not applied, and overlap with the marked part with the magic to bond at the correct position. FIG. 21 shows an example of a method for further facilitating the adhesion. FIG. 21 is a perspective view showing an example of an incurvated nail correction tool having a structure capable of easily applying and positioning an adhesive. One of the straightening sections 5 has a groove 1 with a little length.
2 was provided. On the side of the groove 12, a scale line is inserted.
In the case of plastic, the mold may be provided with elongated protrusions or indentations so that elongated lines can be formed during molding. The other bending correction portion 5 was provided with a protrusion 13. The protrusion 13 is sized to fit in the groove 12 slightly tightly. This incurvated nail correction tool is attached in the same state as in FIG. Here, if the bending correction portions 5 are overlapped, the protrusion 13 is pushed into any position in the groove 12, and the number of scales at the place where the protrusion 13 is present may be memorized. After that, the groove 12 and the protrusion 13 may be removed,
Alternatively, the incurvated nail correction tool may be removed by shifting it toward the tip of the nail while it is still fitted. When applying the adhesive, the two bending correction portions 5 are overlapped at the memorized scale position and then the adhesive is applied. Normally, the adhesive is applied to the interface to be adhered, but in the case of the structure shown in FIG. 21, if the adhesive has a low viscosity, the adhesive is applied from above into the groove 12, Since the adhesive automatically spreads to the adhesive interface, the risk of soiling the hands can be reduced. Furthermore, since the groove 12 and the protrusion 13 are tightly fitted to each other to some extent, the adhesive area increases and the adhesive does not have to be pressed by hand until it hardens.
The two orthodontic bodies do not separate. When the bonding is completed, as shown in the perspective view of FIG. 22, the incurvated nail corrector is slightly bent by hand and inserted into the incurved nail portion (not shown). Still another connection method is a method in which assembly with an adhesive is unnecessary by providing a structure for connection at the end of the bending correction portion 5 of the correction body. It may be attached to the nail and fixed while being positioned, or it may be removed once and then fixed at an arbitrary position. Here are some examples. Figure 2
3 is a perspective view showing a method of binding with a wire 14. A cut 15 is provided at the end of the straightening portion 5 so that the wire 14 does not move.
Was set up. In FIG. 24, a plurality of convex portions 16 and a presser 18 are provided on one correction body, and a plurality of concave portions 17 are provided on the other correction body.
It is a perspective view which shows the Example which provided. When the end of the bending correction portion 5 of the correction body on the side where the recess 17 is present is inserted below the presser 18 provided at the end of the bending correction portion 5 of the other correction body, the projection 16 is depressed. Since it fits in 17 and is pressed down from above by a presser 18, it does not come off easily. The adjustment is completed simply by inserting it to the desired position. In addition, the convex portion 16
Although not shown in detail, is shaped like a key so that it can be easily inserted and is hard to come off. In the figure, the recess 17 is shown as a penetrating structure for the sake of explanation, but a structure not penetrating to the front surface side does not reduce the strength of the material in this portion. The embodiment of FIG. 25 is a perspective view showing a state in which the hook 19 is hooked on the slit 20 and fixed. The width of one end of the bending correction portion 5 on one side is reduced, and the hook 19 is provided at the tip thereof.
Was set up. A plurality of slits 20 are provided in the other straightening section 5. As for the fixing method, the hook 19 is provided with an arbitrary slit 2
0 is inserted from the front side, and then, through the back side of the slit 20 which is not visible in the drawing, the hook 19 is again exposed from the arbitrary slit 20 to the surface and hooked. The slit 20 to be inserted first and the slit 20 for hooking By changing the, the incurvated nail correction tool can be made to have an arbitrary size. Since there is no correction force in the narrow portion connected to the hook 19, the slit 20 is arranged so that the wide bending correction portion 5 can be provided with a portion where two sheets are overlapped with each other even when the portion is adjusted to any size and fixed. I have to decide. FIG. 26 is a perspective view showing a fixing method that is possible when metal is used. The stop plate 2 is provided on the bending correction portion 5 on the lower side.
1 is formed. At the time of attachment, the stopper plate 21 is bent and fixed by about 180 ° so as to wrap around the upper straightening portion 5. Since the bending of 180 ° exceeds the elastic limit, it is plastically deformed and the stop plate 21 cannot return to its original shape. In addition, some of the winding claws have been extremely wound only on one side, as shown in a perspective view in FIG. In the case of dealing with such an incurvated nail, since the incurvated nail corrector according to the present invention is a combination of two correctors, it is possible to use those having different shapes. FIG. 28 is a front view showing two orthodontic bodies having different shapes. In one straightening body, the bending straightening portion 5 is formed in a linear shape, and the folding end 3 is also a simple U-shape. The other one is formed by bending the straightening portion 5 in advance, and the folding end 3 is bent more strongly than the U-shape and is formed into a nearly circular shape. Such a shape facilitates attachment to the incurvated nail when one side is extremely wound, as shown in FIG. Further, in the incurvated nail correction tool according to the present invention, when it is desired to increase the correction force, the material may be changed or the thickness may be changed, but the width of the bending correction portion 5 may be increased. Since the folded end 3 is hooked on the nail of the portion extending away from the meat, the width thereof is about 3 mm, but the width of the bending correction portion 5 does not interfere even if it is spread over the entire surface of the nail. When adjusted to the length of an adult's nail, the correction force can be increased by widening the width up to about 10 mm. If it is made of plastic, the bending correction part 5
It is also possible to cut with a pair of scissors to reduce the width.

[0022]

According to the present invention, since the incurvated nail correction tool is attached to the extended portion of the nail by using the fixed end or the folded end, it is possible to easily attach and correct the ingrown nail without adhesive to the nail, and Since the fixed end and the folded end are sandwiched between the meat, it is possible to correct the nail while preventing the tip angle of the nail and the nail side edge from biting into the meat. In addition, since the correction force is constantly applied, the nail and the incurvated nail correction tool are in close contact with each other, and they do not easily come off in daily life and do not interfere. Especially when wearing socks, they were held down by the socks, so that they did not come off even during intense exercise. Further, when correction is not necessary, it can be easily removed by pinching the incurvated nail correction tool with the fingers of the hand and shifting it to the tip side of the nail. For this reason, it is possible to purchase by yourself, put on by myself, and safely treat without requiring treatment by a professional engineer or a doctor. Further, in order to provide to patients at low cost in accordance with various nail shapes of a plurality of patients, the inventions of claim 1, claim 2 and claim 3
By using a material having rubber elasticity, it is easy to make the size of the nail different from the size of the nail. Since it can be used in any combination, it can support many nail shapes with a small number of product configurations. Furthermore, since the invention of claim 4 has an integrated structure using a single material and has a small number of steps, by preparing and selling a plurality of products of different sizes,
Patients can choose and buy one that is just the right size for them. From the above, the patient can choose and purchase the incurvated nail corrector that suits him, and easily attach it without gluing,
And there is no need to make fine adjustments after installation. Further, the incurvated nail correction tool according to the present invention is not limited to any special material,
Even a widely used material has a sufficient straightening effect, so that development and manufacturing costs can be reduced. As a result of prototyping the incurvated nail correction tool according to the present invention and continuously attaching it to the nail side end near the nail tip of the ingrown nail day and night, it takes 1 to 2 months until the curl of the attached nail tip is flatly corrected. Met. During this time, since the correction force was constantly applied by the elastic restoring force, the nail was not damaged. Also,
Since the incurvated nail correction tool according to the present invention is manufactured to be thin and small, it can be attached to, for example, the index finger other than the big toe.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of an incurvated nail correction tool according to the present invention.

FIG. 2 is a front view showing how the incurvated nail correction tool according to the present invention is attached to a nail.

FIG. 3 is a perspective view showing an embodiment of an incurvated nail correction tool according to the present invention.

FIG. 4 is a front view showing how the incurvated nail correction tool according to the present invention is to be attached to a nail.

FIG. 5 is a front view showing how the incurvated nail correction tool according to the present invention is attached to a nail.

FIG. 6 is a perspective view showing an embodiment of an incurvated nail correction tool according to the present invention.

FIG. 7 is a perspective view showing an embodiment of an incurvated nail correction tool according to the present invention.

FIG. 8 is a perspective view showing an example of an incurvated nail correction tool according to the present invention.

FIG. 9 is a perspective view showing an example of an incurvated nail correction tool according to the present invention.

FIG. 10 is a front view showing how the incurvated nail correction tool of the present invention is attached to a nail.

FIG. 11 is a perspective view showing an example of an incurvated nail correction tool according to the present invention.

FIG. 12 is a front view showing how the incurvated nail correction tool according to the present invention is to be attached to a nail.

FIG. 13 is a front view showing the relationship between the shape of the folded end and the shape of the incurvating claw that constitutes the present invention.

FIG. 14 is a perspective view showing an example of an incurvated nail correction tool according to the present invention.

FIG. 15 is a perspective view showing an attempt to attach the incurvated nail correction tool according to the present invention to the nail.

FIG. 16 is a perspective view showing how the incurvated nail correction tool according to the present invention is to be attached to a nail.

FIG. 17 is a front view showing how the incurvated nail correction tool according to the present invention is attached to a nail.

FIG. 18 is a perspective view showing an example of an incurvated nail correction tool according to the present invention.

FIG. 19 is a front view showing how the incurvated nail correction tool according to the present invention is to be attached to a nail.

FIG. 20 is a perspective view showing how the incurvated nail correction tool according to the present invention is attached to a nail.

FIG. 21 is a perspective view showing an example of an incurvated nail correction tool according to the present invention.

FIG. 22 is a perspective view showing an attempt to attach the incurvated nail correction tool according to the present invention to the nail.

FIG. 23 is a perspective view showing an example of an incurvated nail correction tool according to the present invention.

FIG. 24 is a perspective view showing an example of an incurvated nail correction tool according to the present invention.

FIG. 25 is a perspective view showing an example of an incurvated nail correction tool according to the present invention.

FIG. 26 is a perspective view showing an example of an incurvated nail correction tool according to the present invention.

FIG. 27 is a perspective view showing an example of the shape of a scroll nail.

FIG. 28 is a front view showing an example of an incurvated nail correction tool according to the present invention.

FIG. 29 is a perspective view showing an example of a normal nail shape.

FIG. 30 is a perspective view showing an example of the shape of an incurvated nail.

FIG. 31 is a front view showing an example of a direction in which a correction force is applied to the incurvated nail.

FIG. 32 is a front view showing an example of a direction in which a correction force is applied to the incurvated nail.

FIG. 33 is a perspective view showing an example of a conventional incurvated nail correction tool.

FIG. 34 is a perspective view showing an example of a conventional incurvated nail correction tool.

FIG. 35 is a perspective view showing an example of a conventional incurvated nail correction tool.

FIG. 36 is a perspective view showing the outline of treatment of incurvated nails by surgery.

[Explanation of symbols]

1 Stretch correction unit 2 fixed end 3 Folded end 4 connection end 5 Bending correction section 11 vinyl tubes 12 grooves 13 Projection 14 wire 15 notches 16 convex 17 recess 18 hold down 19 hooks 20 slits 21 stop plate

Claims (5)

[Claims] 1. An expansion and contraction correction part formed of a polymer material in an elongated shape and having rubber elasticity at room temperature, and folding ends made of a hard material which are not deformed by the elastic restoring force of the expansion and contraction correction part are provided at both ends of the expansion and contraction correction part. The incurvated nail correction tool is characterized in that the folded-back end has a shape in which the end is folded back toward the stretch correction section. 2. An expansion and contraction correction section which is made of a polymer material and has rubber elasticity at room temperature, and fixed ends are provided at both ends of the expansion and contraction correction section. An incurvated nail correction tool characterized in that the stretch correction section and the fixed end are integrally molded using the same material. 3. An incurvated nail correction tool that is used by connecting two correction bodies, each of the two correction bodies including a stretch correction section,
It consists of a folding end provided at one end of the stretch straightening part and a connecting end provided at the end without the folding back end.The stretch straightening part is formed elongated using a polymer material having rubber elasticity at room temperature. , The folding end and the connecting end are made of a hard material that is not deformed by the elastic restoring force of the expansion / contraction correction part, and the folding end has a shape in which the end part is folded back toward the expansion / contraction correction part, and the two corrections having the above-mentioned configurations are used. An incurvated nail correction tool characterized by connecting and fixing the connecting ends of the body. 4. A bending straightening portion formed in a strip shape using a plastic or a metal so as to be bent by the force of a finger of a human hand and having an elastic restoring force when the finger is released, and a bending straightening portion. Provided at both ends are bent ends that are made of the same material as the bend straightening part and are integrally formed, and the bent back ends have a shape in which the ends are bent back toward the bend straightening part. The incurvated nail correction tool is characterized in that the correction force can be changed by cutting off the bending correction portion in the direction of decreasing the width. 5. An incurvated nail correction tool that is used by connecting two correction bodies, each of the two correction bodies having a bending correction portion,
A bent end integrally formed of the same material as the bend straightening part is provided at one end of the bend straightening part, and the bend straightening part is made of plastic or metal so as to have an elastic restoring force against bending stress. It has a long and slender shape, and the fold end has a shape in which the end is folded back toward the bending straightening part side. Curly nail correction tool characterized by exhibiting