WO2022102285A1 - 爪矯正具 - Google Patents

爪矯正具 Download PDF

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Publication number
WO2022102285A1
WO2022102285A1 PCT/JP2021/036839 JP2021036839W WO2022102285A1 WO 2022102285 A1 WO2022102285 A1 WO 2022102285A1 JP 2021036839 W JP2021036839 W JP 2021036839W WO 2022102285 A1 WO2022102285 A1 WO 2022102285A1
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WO
WIPO (PCT)
Prior art keywords
nail
side edge
gel
point
axis
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Ceased
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PCT/JP2021/036839
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English (en)
French (fr)
Japanese (ja)
Inventor
忠永 鳥尾
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Individual
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Individual
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Publication date
Application filed by Individual filed Critical Individual
Priority to JP2022504226A priority Critical patent/JP7066928B1/ja
Priority to US18/252,791 priority patent/US20240000599A1/en
Publication of WO2022102285A1 publication Critical patent/WO2022102285A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F5/00—Orthopaedic methods or devices for non-surgical treatment of bones or joints; Nursing devices ; Anti-rape devices
    • A61F5/01—Orthopaedic devices, e.g. long-term immobilising or pressure directing devices for treating broken or deformed bones such as splints, casts or braces
    • A61F5/11—Devices for correcting deformities of the nails

Definitions

  • the present invention relates to a nail straightener.
  • Patent Document 1 the conventional technique described in Patent Document 1 is to apply a load to the nail by using the restoring force of a small piece attached to the deformed nail to correct the morphology.
  • the method of utilizing such a restoring force has a problem that a correction effect cannot be obtained for a nail whose end is bent at an acute angle, a nail deformed so as to bite into the skin, and the like.
  • the present invention has been made in view of such a situation, and an object of the present invention is to effectively correct highly deformed nails.
  • the nail straightener is A plate-shaped nail straightener with a contact surface that comes into contact with the nail.
  • the contact surface is A straight section with a first length and A curved portion having a second length shorter than the first length and having a convex curve on the claw side to be in contact with the curved portion.
  • a first nail correction function that separates the side edge of the nail from the skin by the principle of leverage when a force is applied to the force point as one point of the part. To prepare for.
  • FIG. 2 is an enlarged image diagram of FIG. 2.
  • FIG. 2 is an enlarged image diagram of FIG. 2.
  • FIG. 2 is an enlarged image diagram of FIG. 2.
  • FIG. 2 is a figure explaining the operation of the nail straightener having the structure of FIGS. 1 to 3.
  • FIG. It is a figure explaining the part of the nail correction tool applied to various nail shapes. It is a figure explaining the part of the nail correction tool applied to various nail shapes. It is a figure explaining the part of the nail correction tool applied to various nail shapes. It is a figure explaining the part of the nail correction tool applied to various nail shapes. It is a figure explaining the contact position of a side edge portion and a curved portion.
  • FIG. 7 and FIG. 8 which concerns on the use of a nail straightener. It is a figure explaining another example different from FIGS. 7 to 9 which concerns on the use of a nail straightener. It is a figure explaining another example different from FIG. 7 to FIG. 10 which concerns on the use of a nail straightener. It is a figure explaining another example different from FIGS. 7 to 11 which concerns on the use of a nail straightener.
  • FIG. 1 is a perspective view of a nail straightening tool according to an embodiment of the nail straightening tool of the present invention.
  • FIG. 2A is a side view of the nail orthodontic appliance of FIG.
  • FIG. 2B is a top view of the nail straightener of FIG. 1.
  • 3A and 3B are enlarged images of FIG. 2.
  • the axis XF, the axis YF, and the axis ZF shown in FIG. 1 are used as the coordinate system with respect to the finger F. That is, assuming the finger F of the leg touching the floor, the plane having the direction in which gravity acts (the direction parallel to the ZF axis) as a normal line shown in FIG. 1, that is, parallel to the axis XF and the axis YF.
  • the surface is called an "XF-YF plane".
  • the surface with which the pad of the finger F abuts is referred to as a "horizontal plane".
  • FIG. 1 the axis XF, the axis YF, and the axis ZF shown in FIG. 1 are used as the coordinate system with respect to the finger F. That is, assuming the finger F of the leg touching the floor, the plane having the direction in which gravity acts (the direction parallel to the ZF axis) as a normal line shown in FIG. 1, that is, parallel to the axis X
  • the axis XF is in a vertical relationship with the axis ZF, and is also perpendicular to the extending direction of the nail plate N. That is, the direction of the arrow of the axis XF shown in FIG. 1 is called the “positive direction of the axis XF", and the opposite direction is called the "negative direction of the axis XF".
  • the YF axis is in a vertical relationship with the axis ZF and is parallel to the extending direction of the nail plate N. That is, the direction of the axis YF shown in FIG. 1 is called the “positive direction of the axis YF", and the opposite direction is called the "negative direction of the axis YF".
  • the direction of the arrow on the ZF axis is referred to as "the positive direction of the axis ZF”
  • the opposite direction is referred to as "the negative direction of the axis ZF".
  • the nail corrector 1 is a rectangle having a long side and a short side, and has a plate shape having a thickness shorter than that of the short side. It is a structure in which the members are curved. That is, as shown in FIG. 2A, when the non-curved side of the plate-shaped member is grounded to the floor, the plane having the direction in which gravity acts (the direction parallel to the axis Z) shown in FIG. 2A as a normal.
  • a plane parallel to the axis X and the axis Y is called an "XY plane".
  • the axis X is perpendicular to the axis Z and is parallel to the long side direction of the plate-shaped member. That is, the direction of the arrow of the axis X shown in FIG. 1 is called the "positive direction of the axis X", and the opposite direction is called the "negative direction of the axis X".
  • the Y axis has a relationship perpendicular to the axis Z and is perpendicular to the long side direction (parallel to the short side direction). That is, the direction of the axis Y shown in FIG.
  • the nail straightening tool 1 is a straightening tool used for correcting the shape of a nail and is configured as a rectangular plate-shaped member.
  • a material that has a hardness that does not easily break, has a restoring force (stretching force), has transparency, is rich in workability, and has almost no effect on the body is preferable. ..
  • ABS resin is adopted in this embodiment.
  • the nail straightener 1 includes a rectangular surface 11 and a surface 12 facing the surface 11.
  • the surface 11 is located on the upper side and the surface 12 is the finger. It is located so as to abut on the claw plate N of F. Therefore, hereinafter, the surface 11 is referred to as a “top surface 11”, and the surface 12 is referred to as a “bottom surface 12”.
  • the bottom surface 12 is divided into a curved portion 21 and a straight portion 22 as a portion that abuts on the nail plate N.
  • the curved portion 21 has a length L1 in the direction of the axis Z
  • the straight portion 22 has a length L2 in the direction of the axis X.
  • the curved portion 21 and the straight portion 22 are used so as to be in contact with the nail plate N when the nail plate N is corrected. Specifically, as will be described later, as shown in FIG. 1, when the side edge Nm is corrected, the curved portion 21 is fixed to the side edge Nm. The position of contact with the side edge Nm of the curved portion 21 is the point of action, and a part of the straight line portion 22 is the point of effort.
  • the side edge Nm is corrected by applying a constant force to the point of action according to the principle of leverage.
  • the force applied to the point of action in this way is hereinafter referred to as "correction force”. Therefore, the length L1 of the curved portion 21 needs to be long enough to function as a fulcrum and a point of action when the curved portion 21 is brought into contact with the nail plate N for correction.
  • a part of the straight line portion 22 functions as a force point for the correction of the side edge Nm. Therefore, the length L2 of the straight line portion 22 needs to be long enough that the load required for correcting the side edge Nm can be applied to the point of effort by the practitioner's hand.
  • the straight portion 22 is cut at a portion that is not in contact with the straight portion 22, so that the length L2 needs to be determined in consideration of this cutting.
  • the length L1 is 10 mm and the length L2 is 17 mm, respectively.
  • the curved portion 21 and the straight portion 22 have a thickness L3 in the Z-axis direction.
  • a plurality of types of nail straighteners 1 having different thicknesses L3 are prepared so as to correspond to the thickness, hardness, and size of the nail plate N. Therefore, the practitioner can select and perform the treatment with the type of nail correction tool 1 suitable for the thickness, hardness, and size of the nail plate N.
  • the first type nail straightening tool 1 having a thickness L3 of 1.8 mm and the second type nail straightening tool 1 having a thickness L3 of 1.1 mm have been adopted. And are prepared.
  • the first type nail correction tool 1 is selected.
  • the nail plate N has a general thickness or is thin, or for a small nail other than the toe.
  • the reason why 1.8 mm is adopted as the thickness L3 of the first type nail straightening tool 1 is as follows. That is, when the thickness L3 is thicker than 1.8 mm, the correction force applied to the nail plate N becomes excessively strong, and there is a problem that the nail plate N is peeled off from the skin of the finger F and the treatment is accompanied by severe pain. Can occur. Further, if the thickness L3 is thicker, there arises a problem that labor is required even when the straight line portion 22 is cut. On the other hand, the thinner the thickness L3, the weaker the correction force of the nail straightener 1. Therefore, 1.8 mm, which is the maximum thickness that does not cause the above-mentioned problems, is adopted as the thickness L3 of the first type nail straightening tool 1 in the present embodiment.
  • 1.1 mm is adopted as the thickness L3 of the second type nail straightener 1 in the present embodiment. That is, when the thickness L3 is thinner than 1.1 mm, the correction force applied to the nail plate N becomes excessively weak, and there may be a problem that the correction effect cannot be obtained. On the other hand, the thicker the thickness L3, the stronger the correction force, but there may be problems such as damage to the originally thin nail plate N and severe pain in the treatment. Therefore, 1.1 mm, which is the maximum thickness that does not cause the above-mentioned problems, is adopted as the thickness L3 of the second type nail straightening tool 1 in the present embodiment.
  • a part of the curved portion 21 functions as a fulcrum, and a position separated from the fulcrum functions as an action point. Therefore, when the bending degree of the curved portion 21 is excessively large, the surface where a part of the curved portion 21 functioning as an action point and the side edge Nm abut is small, so that a large load is locally applied to the abutting surface. Will join. Therefore, there may be a problem that the nail correction tool 1 is peeled off from the side edge Nm, the nail plate N is peeled off from the skin of the finger F, and the treatment is accompanied by severe pain.
  • the bending of the curved portion 21 is excessively large, the region of the curved portion 21 that can function as a fulcrum is limited, which may cause a problem that the treatment is difficult.
  • the bending degree of the curved portion 21 is excessively small, the area that can function as a fulcrum becomes wide, but the closer the curved portion 21 is to a straight line, the more difficult it is for the lever principle to function, so that the correction force applied to the side edge Nm is applied. Can cause problems such as small.
  • the bending condition of the curved portion 21 is such that when the curved portion 21 is in contact with the side edge Nm, the principle of leverage functions and a region capable of functioning as a fulcrum can be secured. ..
  • the curved portion 21 is configured so that the bottom surface 12 is bent in the positive direction of the Z axis by the height of the height L4 from the state where the straight portion 22 is installed so as to be in contact with the horizontal plane. Will be done. Specifically, in the present embodiment, 1 mm is adopted as the height L4.
  • the curved portion 21 has an end portion 31 on the side opposite to the side connected to the straight line portion 22.
  • the straight portion 22 has an end portion 32 on the side opposite to the side connected to the curved portion 21.
  • a gel spot 41 is provided on the upper surface 11 facing the end portion 31 of the bottom surface 12.
  • a gel spot 42 is provided on the upper surface 11 facing the end portion 32 of the bottom surface 12.
  • the range of the length L6 from the negative end portion of the axis X in the upper surface 11 of the nail straightener 1 is obliquely lowered toward the end portion. It is constructed by being cut. Then, the thickness of the end portion in the Z-axis direction is configured to have a thickness L5.
  • the range of the length L6 from the positive end portion of the X-axis of the upper surface 11 of the nail straightener 1 is obliquely lowered toward the end portion. It is constructed by being cut into. Then, the thickness of the end portion in the Z-axis direction is configured to have a thickness L5. Specifically, in the present embodiment, 0.8 mm as the thickness L5 and 3 mm as the length L6 are adopted respectively.
  • the end portion 31 of the curved portion 21 when the end portion 31 of the curved portion 21 is in contact with the side edge Nm and the side edge Nm is corrected by the principle of leverage, the end portion 31, And the gel spot 41 functions as an adhesive coating surface. Further, when the end portion 32 of the straight portion 22 is in contact with the side edge Nm and the nail plate N is corrected, the end portion 32 and the gel spot 42 function as an adhesive application surface. Therefore, the practitioner uses the gel spots 41 and 42 as an index to determine the position to apply the adhesive and the amount of the adhesive to be applied. As a guideline length for applying such an appropriate amount of adhesive, 3 mm is adopted as the length L6 in the present embodiment.
  • the end portion 31 of the curved portion 21 is in contact with the side edge Nm and the side edge Nm is corrected by the principle of leverage, the end portion 31 and the end portion 31 are used.
  • An adhesive is applied from the side edge Nm to the gel spot 41 in order to strengthen the adhesive force with the side edge Nm.
  • the thickness L5 is too thick (the height of the gel spot 41 is too high when viewed from the position of the side edge Nm), the adhesive cannot be continuously applied from the side edge Nm to the gel spot 41. , It becomes difficult to strengthen the adhesive force between the end portion 31 and the side edge Nm.
  • the nail plate N after the nail correction tool 1 is fixed is applied. Problems such as labor required for scraping the adhesive adhering to the surface and problems such as the adhesive adhering to the skin may occur.
  • the thickness L5 is too thin (the height of the gel spot 41 is too low when viewed from the position of the side edge Nm)
  • the adhesive can be easily applied, but the nail straightener 1 is resistant to deformation. Since it becomes weak, the nail corrector 1 becomes white and does not perform its function. Therefore, 0.8 mm is adopted as the thickness L5 in the present embodiment as a thickness that makes it easy to apply the adhesive and can secure a certain correction force.
  • the reason why the gel spot 41 and the gel spot 42 are formed by being cut so as to diagonally descend in the direction of the end portion is as follows. Specifically, as will be described later with reference to FIG. 4, for example, when the end portion 31 of the curved portion 21 is in contact with the side edge Nm and the side edge Nm is corrected by the principle of leverage, it faces the gel spot 41.
  • the end portion 31 functions as a point of action. Therefore, if the gel spot 41 is configured by being cut into a stepped shape instead of diagonally, for example, a local force as an action point is applied to the stepped portion, so that the stepped portion is whitened and fulfills its function. Either it can disappear, or the nail straightener 1 can break at its step. Therefore, in order to maintain resistance to deformation, the gel spot 41 and the gel spot 42 are configured by being cut so that the end portions thereof descend diagonally.
  • the practitioner can visually recognize the gel spot 41 configured on the upper surface 11 side at a glance even when the end portion 31 is viewed from the bottom surface 12 side. Therefore, the practitioner can apply an appropriate amount of adhesive to an appropriate position of the end portion 31 with reference to the gel spot 41.
  • the practitioner can visually recognize the gel spot 42 configured on the upper surface 11 side at a glance even when the end portion 32 is viewed from the bottom surface 12 side. Therefore, the practitioner can apply an appropriate amount of adhesive to an appropriate position on the end portion 32 with reference to the gel spot 42.
  • the nail straightener 1 has a width L7 as a length of the upper surface 11 in the short side direction.
  • the width L7 needs to be a width having a resistance to such that it does not easily break even when a strong load is applied to the nail straightener 1.
  • a width L7 of 3 mm is adopted.
  • the reason why 3 mm is adopted as the width L7 is as follows.
  • the width L7 when the width L7 is wider than 3 mm, there may be a problem that the adhesive area when the nail plate N and the bottom surface 12 are fixed is large and the range of damaging the nail plate N is wide. Further, if the width L7 is wider, there arises a problem that labor is required even when the straight line portion 22 is cut. On the other hand, as the width L7 becomes narrower, the resistance of the nail straightening tool 1 to deformation becomes weaker, so that the nail straightening tool 1 becomes white and does not perform its function. Further, since the adhesive area when the nail plate N and the bottom surface 12 are fixed is small, there is a problem that the nail correction tool 1 is easily detached from the nail plate N. Therefore, the maximum width of 3 mm that does not cause the above-mentioned problems is adopted as the width L7 in the present embodiment.
  • the nail straightening tool 1 includes a rectangular upper surface 11 and a bottom surface 12 as described above, and the bottom surface 12 is divided into a curved portion 21 and a straight portion 22 in the X-axis direction. Therefore, regardless of whether the correction target is, for example, the left foot, the right foot, the side edge Nm, or the side edge Np, the nail correction tool 1 performs the treatment only by changing the direction of the nail correction tool 1 in the X-axis direction. be able to.
  • the adhesive used for the treatment for correcting the nail plate N will be described.
  • a photocurable adhesive is suitable.
  • the preferred reasons are as follows. That is, since the photo-curing type adhesive has high adhesive strength and can be cured by exposing it to light, unlike the type of adhesive that is cured by mixing the first liquid and the second liquid, for example, light It can be gradually cured according to the irradiation time of. Therefore, the nail correction tool 1 can be fixed to the nail plate N, and the treatment can be proceeded while listening to the person to be treated about the pain situation felt when the load is applied to the nail plate N. As a result, the pain felt by the subject can be suppressed.
  • the treatment may be interrupted and the adhesive may be reapplied before the nail straightening tool 1 is completely fixed to the nail plate N.
  • two types of photocurable adhesives are used depending on the intended use. Specifically, as will be described later, a high-viscosity gel-like adhesive HV (hereinafter referred to as “gel HV”) is used for fixing the side edge Nm and the end portion 31, repairing a damaged portion of the nail plate N, or Used for coating. Further, the low-viscosity gel-like adhesive LV (hereinafter referred to as "gel LV”) is used for fixing the side edge Nm and the end portion 31 and repairing when the nail plate N and the bottom surface 12 are about to peel off. It can be used to fill the gap between the nail plate N and the bottom surface 12 or for coating purposes.
  • step ST1 the practitioner applies gel HV to the end 31 of the nail straightener 1.
  • the amount of gel HV to be applied and the position to be applied are determined by the practitioner with reference to the gel spot 41. Specifically, since the practitioner can visually recognize the area of the gel spot 41 when looking at the nail corrector 1 from the negative direction of the Z axis (bottom surface 12 side) (toward the top surface 11 direction), the gel An appropriate amount of adhesive that can be placed on the spot 41 can be applied to an appropriate place.
  • the amount of gel HV applied is preferably 1/3 of the size of rice grains.
  • step ST2 the practitioner brings the end portion 31 coated with the gel HV into contact with the side edge Nm so that the end portion 31 and the side edge Nm are brought into close contact with each other.
  • the excess gel HV is not removed, the portion of the nail plate N that is not suitable as a fulcrum rises due to the excess gel HV, and this raised portion becomes a fulcrum, effectively applying a load to the side edge Nm.
  • the practitioner removes the gel HV protruding from between the end portion 31 and the side edge Nm with a spatula.
  • step ST3 the practitioner uses an LED lamp L (hereinafter referred to as “lamp L”) to apply ultraviolet rays (for example, wavelength 365 n) to the gel HV at the position where the end portion 31 and the side edge Nm are in contact with each other. (Ultraviolet rays). As a result, the gel HV is cured, so that the end portion 31 and the side edge Nm are fixed to each other.
  • lamp L an LED lamp L
  • ultraviolet rays for example, wavelength 365 n
  • step ST4 the practitioner takes the gel HV at the tip of the spatula, and with the end 31 of step ST3 and the side edge Nm fixed, about 2/3 of the gel spot 41 from the end of the side edge Nm. Apply to the range up to the position of. If the amount of gel HV applied at this time is excessively large, the part of the nail plate N that is not suitable as a fulcrum rises due to the excess gel HV, and this raised part becomes a fulcrum, effectively applying a load to the side edge Nm. I can't call. On the other hand, when the amount of gel HV applied is excessively small, there arises a problem that the end portion 31 is peeled off from the side edge Nm or a correction force cannot be applied.
  • the gel spot 41 can also solve such a problem. That is, the practitioner can apply an appropriate adhesive for fixation by referring to the area of the gel spot 41.
  • the practitioner tries to tilt the straight line portion 22 in the negative direction of the Z axis while holding a part of the straight line portion 22 of the nail straightening tool 1, and the side edge Nm and the end portion 31 are fixed to each other.
  • the end portion 31 acts as an action point
  • one of the curved portions 21 acts as a fulcrum
  • a part of the straight portion 22 acts as a force point. It can be seen that the side edge Nm can be corrected by the principle of.
  • step ST5 it is possible to confirm the adjustment of the positional relationship between the action point, the fulcrum, and the force point according to the amount of lifting of the side edge Nm. As a result of such confirmation, if it is expected that the side edge Nm can be sufficiently corrected, the process proceeds to step ST5. On the other hand, when the side edge Nm and the end portion 31 are not sufficiently fixed, or when the side edge Nm is not separated from the skin K, that is, it is not expected that the side edge Nm can be sufficiently corrected. In that case, the process may return to the process of step ST3.
  • step ST5 the practitioner further applies gel HV between the bottom surface 12 and the nail plate N.
  • the amount of gel HV is preferably such that when the straight portion 22 is tilted in the negative direction of the Z axis, the gel HV slightly protrudes from between the bottom surface 12 and the nail plate N. This is because if the amount of the gel HV that protrudes is large, there arises a problem that labor is required to scrape the surface of the nail plate N after the nail correction tool 1 is fixed.
  • step ST6 the practitioner holds a part of the straight line portion 22 (the portion that functions as a force point) and tilts it in the negative direction of the Z axis (direction of the arrow in FIG. 4).
  • the end 31 of the curved portion 21 is the point of action
  • a part of the straight line portion 22 held by the practitioner is the point of effort, which is between the point of action and the point of effort.
  • a part of the curved portion 21 near the point of action functions as a fulcrum, and the side edge Nm is separated from the skin K by the principle of leverage.
  • the practitioner brings the bottom surface 12 extending from the curved portion 21 to a part of the straight portion 22 close to the nail plate N.
  • the angle at which the straight portion 22 is tilted when the bottom surface 12 is brought close to the nail plate N is based on the angle between the nail correction tool 1 and the nail plate N immediately before step ST6. About half is preferable. This is because if the straight portion 22 is excessively tilted (more than half of the standard angle) so as to abut on the nail plate N, the nail correction tool 1 may come off the nail plate N or the nail plate N may be removed from the skin. This is because problems such as peeling may occur. The practitioner brings the bottom surface 12 close to the nail plate N, and then removes the gel HV protruding from between the bottom surface 12 and the nail plate N with a spatula.
  • the practitioner has fixed the position when the nail correction tool 1 is tilted in the negative direction of the Z axis (the position where the bottom surface 12 is close to the nail plate N), and the bottom surface 12 and the nail plate N are fixed.
  • the gel HV located in close proximity to and is irradiated with ultraviolet rays using the lamp L. As a result, the gel HV is cured, so that the bottom surface 12 and the nail plate N are fixed to each other.
  • step ST7 the practitioner cuts the portion of the straight portion 22 that was not fixed to the nail plate N. Then, the practitioner scrapes the cut cross section of the straight line portion 22 and its periphery by a predetermined method in order to prepare the nail correction tool 1 and the nail plate N that are fixed to each other.
  • step ST8 the practitioner applies gel LV so as to fill a slight gap between the mutually fixed nail plate N and the nail correction tool 1. Then, the practitioner irradiates the applied gel LV with ultraviolet rays using the lamp L. As a result, the gel LV is cured, so that the nail correction tool 1 is more firmly fixed to the nail plate N. Finally, the practitioner further applies a grain-sized amount of gel HV to the entire nail plate N. This makes it possible to prevent the nail straightener 1 from peeling off from the nail plate N. At this time, the practitioner applies the gel HV to the boundary between the nail plate N and the cuticle of the finger F. As a result, it is possible to grasp how much new nails have grown, so that the practitioner can confirm at a glance the effect of correcting the side edge Nm on the amount of extended nails.
  • the curved portion 21 of the nail straightener 1 is fixed to the side edge Nm, and the side edge Nm is corrected by the principle of leverage, but the present invention is not limited to this. That is, in the nail straightening tool 1, the straight line portion 22 may be fixed to the side edge Nm to correct the shape of the nail plate N. Therefore, the parts of the nail straightener applied to various nail shapes will be described with reference to FIGS. 5A to 5C.
  • 5A to 5C are diagrams for explaining the parts of the nail straightener applied to various nail shapes.
  • the nail has the property of extending inwardly. Normally, the force to spread the nail outward by applying an external load such as daily walking or exercise to the force to wind the nail inward, and the force to wind inward (force acting inward) and outward. It is said that the shape of the nail is maintained in a normal state by the balance of the spreading force (force acting on the outside). However, if such an inward force and an outward force are out of balance, for example, if the inward force is stronger than the outward spreading force, the nail may be deformed.
  • the nail straightening tool 1 of the present embodiment has a first nail straightening function (function in the curved portion 21) that corrects the side edge Nm by the principle of a nail in order to perform effective correction according to various deformed nails. ), It has a second nail correction function (function in the straight portion 22) utilizing the elasto-plastic force of the material of the nail correction tool 1 itself.
  • the second nail correction function is mainly exerted on the nail plate N which is deformed so as to be entirely curved. That is, when the nail plate N is corrected, the straight portion 22 is fixed to the side edge Nm. Then, the bottom surface 12 is fixed to the nail plate N so as to be tilted in the negative direction of the Z axis.
  • the restoring force acts on the nail straightening tool 1 due to the nature of the material, the nail straightening tool 1 curved so as to be in contact with the nail plate N is in the direction of returning to the plate shape (positive Z-axis).
  • the restoring force works in the direction). That is, since this restoring force acts as a force to spread outward on the nail plate N deformed to be curved inward, the shape of the nail plate N is corrected.
  • the first nail correction function is mainly exerted on the nail plate N in which a part of the side edge Nm is locally deformed as shown in FIGS. 5B and 5C.
  • the nail plate N (hereinafter referred to as “ingrown nail”) is a straight nail as a whole, but a part of the side edge Nm is locally deformed to a right angle or an acute angle and is invaginated into the skin K. ”) Is shown.
  • ingrown nail it is difficult to bring the nail corrector 1 into contact with the ingrown toenail because a part of the side edge Nm is ingrown into the skin K. Therefore, it was not possible to effectively correct such ingrown toenail by the conventional correction method. Therefore, the first nail correction function is exerted in order to effectively correct such ingrown toenail. That is, as shown in FIG.
  • the end portion 31 of the curved portion 21 is abutted and fixed at a predetermined position on the side edge Nm. Then, when the bottom surface 12 is tilted in the negative direction of the Z axis by the practitioner, as a result, the end portion 31 of the curved portion 21 functions as an action point and a part of the curved portion 21 functions as a fulcrum.
  • the portion included in the region NA shown in FIG. 5B is lifted in the positive direction of the Z axis.
  • the side edge Nm is separated from the skin K. In this way, the ingrown toenail is effectively corrected by exerting the first nail correction function.
  • the end portion 31 of the curved portion 21 may be brought into contact with a locally deformed portion of the side edge Nm at a right angle or an acute angle. Then, when the bottom surface 12 is tilted in the negative direction of the Z axis by the practitioner, as a result, the end portion 31 of the curved portion 21 functions as an action point and a part of the curved portion 21 functions as a fulcrum.
  • the deformed portion of the side edge Nm is corrected by the principle of.
  • the nail correction tool 1 has a first nail correction function exerted by the curved portion 21 and a second nail correction function exerted by the straight portion 22. Therefore, for example, even when the shape and the degree of deformation are different between the side edge Nm and the side edge Np, the side edge Nm is exhibited by combining the first nail correction function and the second nail correction function. It will be possible to perform effective treatments for each of the side edges Np.
  • 6A to 6C are views for explaining the contact position between the side edge and the curved portion.
  • the principle of leverage is established by the equilibrium between the value obtained by multiplying the distance from the fulcrum to the point of effort and the force applied to the point of effort, and the value obtained by multiplying the distance from the fulcrum to the point of action and the force applied to the point of action. do. That is, for example, as shown in FIG. 6A, when the end portion 31 functions as an action point abutting on the side edge Nm, from the action point to the fulcrum depending on whether the point a or the point b is selected as the fulcrum. Because the distances are different, the distance from the fulcrum to the point of effort, the force required at the point of effort, and the force applied to the point of action (correction force) change. Therefore, the practitioner can make an arbitrary position of the curved portion 21 function as a fulcrum so that effective correction can be performed according to the thickness, hardness, size, and shape of the side edge Nm of the nail plate N. can.
  • FIG. 6B having point a as a fulcrum
  • FIG. 6C having point b as a fulcrum.
  • the practitioner adopts the point a closer to the position (point of action) where the end portion 31 abuts as the fulcrum. It is good to do it. That is, when it is desired to apply a larger load to the point of action, or when the width of the side edge Nm is small (the distance from the fulcrum to the point of action cannot be obtained), the practitioner may adopt the point a as the fulcrum.
  • the practitioner uses the point b as the fulcrum. It is good to adopt it.
  • the curved portion 21 can function as a fulcrum at an arbitrary position depending on the shape, hardness, and degree of deformation of the claw. Therefore, the practitioner can more effectively make corrections according to his / her own treatment force and the shape of the nail plate N.
  • the nail straightening tool 1 is easy to process due to the nature of its material, it can be used by cutting the end of the end portion 31. Since the distance from the fulcrum to the point of action can be arbitrarily determined by using the curved portion 21 in which the end of the end portion 31 is cut to an arbitrary length, the practitioner can perform more depending on the shape of the nail plate N. You will be able to make corrections effectively. Further, since the bending condition of the curved portion 21 can be arbitrarily selected by cutting the end of the end portion 31, the practitioner can perform effective correction according to various deformed nails.
  • the nail plate N is corrected by bringing the bottom surface 12 of the nail correction tool 1 into contact with the nail plate N, but the present invention is not limited to this. That is, the upper surface 11 of the nail correction tool 1 may be brought into contact with the instep N to correct the nail instep N.
  • FIG. 7A-7C are views illustrating another example relating to the use of a nail straightener.
  • a nail deformed so that the nail plate N protrudes into a triangle in the positive direction of the Z axis (hereinafter referred to as “triangular nail”) is shown in FIG. 7B.
  • the upper surface 11 side of the curved portion 21 is brought into contact with the curved portion 21.
  • the nail straightening tool 1 since the restoring force acts on the nail straightening tool 1 due to the nature of the material, the nail straightening tool 1 curved so as to be in contact with the nail plate N is in the direction of returning to the plate shape (positive Z-axis).
  • the restoring force works in the direction).
  • the nail straightener 1 is easy to process due to the nature of the material, so that it can be used for repairing cracked nails and the like if it is cut into small pieces.
  • the nail straightener 1 may be used in layers.
  • FIGS. 8A to 8C are views illustrating another example different from FIG. 7 relating to the use of a nail straightener.
  • FIG. 8A in the case of the nail plate N in which the side edge Nm is deformed to a right angle or an acute angle, the end 31 or the end 32 of the nail straightener 1-1 first abuts on the side edge Nm. And stick. Then, as shown in FIG.
  • the straight portion 22 of the nail straightening tool 1-1 is tilted until it is substantially parallel to the Z-axis direction, and the nail straightening tool 1-1 ahead of the fixed portion is cut while leaving only the fixed portion. ..
  • the end portion 31 of the curved portion 21 is further abutted and fixed to the end portion 31 or the end portion 32 fixed to the side edge Nm of another nail straightening tool 1-2. Then, the side edge Nm may be corrected by the principle of leverage. In this way, by superimposing the nail correction tool 1-2 on the nail correction tool 1-1, it becomes possible to appropriately correct even a highly deformed nail.
  • two nail straighteners 1-1 and 1-2 are used for easy understanding.
  • the nail straightener 1 includes both the curved portion 21 and the straight portion 22. Therefore, the practitioner uses the straight portion 22 of the nail straightening tool 1-1 as the nail straightening tool 1-1 in FIG. 8C, and the curved portion 21 of the cut nail straightening tool 1-1 is used as the nail straightening tool 1 in FIG. 8C. It is good to use it as -2. As a result, the treatment described with reference to FIGS. 8A to 8C can be performed with only one nail straightening tool 1.
  • FIG. 9 is a diagram illustrating another example different from FIGS. 7 and 8 relating to the use of a nail straightener.
  • the bonding method of the example of FIG. 9 is that the gel HV is applied to different positions in step ST4 of FIG. That is, in the example of FIG. 9, the gel HV is also applied to the region R1 between the nail plate N and the finger F. Then, the gel HV coated in this way is irradiated with ultraviolet rays by the lamp L, so that the gel HV is cured. After that, when the practitioner tilts the orthodontic appliance 1 as shown in step ST6 of FIG. 4, the force in the direction indicated by the arrow FOR shown in FIG. 9 so that the orthodontic appliance 1 is separated from the nail plate N (hereinafter, It is called "force FOR").
  • the adhesion of the gel HV is due to the adhesion to the surface of the nail plate N.
  • the gel spot 41 of the orthodontic appliance 1 was integrated from the upper part (the position in the positive direction of the axis Z and the negative direction of the axis X) to the region R1.
  • the gel HV cures in this state. Due to the shape of such a cured gel HV, it is fixed so as to support the nail plate N. As a result, the adhesion between the orthodontic appliance 1 and the nail plate N becomes stronger than that shown in FIG.
  • the fixation is maintained. That is, when the practitioner determines that the gel HV can also be applied to the region R1 between the nail plate N and the finger F, the gel HV is applied as shown in FIG. 9 to more firmly correct the nail.
  • the tool 1 and the nail plate N can be fixed. This makes it possible to effectively correct highly deformed nails.
  • the practitioner can apply the method of applying the gel HV described with reference to FIG. 9 to the nail plate N of the example described with reference to FIGS. 8A to 8C.
  • the practitioner can apply gel HV as shown in FIG. 9 and then cure using the lamp L without using the nail straightener 1-1 shown in FIG. 8C.
  • FIG. 10 is a diagram illustrating another example different from FIGS. 7 to 9 relating to the use of a nail straightener.
  • the bonding method of the example of FIG. 10 is that gel HV is applied to different positions in FIG. 5B.
  • the gel HV was applied to the region R1 between the nail plate N and the finger F via the positive direction of the axis X, but the practitioner applies the gel HV as shown in FIG. You can also do it. That is, as shown in the example of FIG. 10, the practitioner can apply the gel HV to the region between the nail plate N and the finger F via the region R2 in the negative direction of the axis YF. That is, in the example of FIG.
  • the gel HV is applied in the positive direction of the axis X when viewed from the nail corrector 1, and is further applied to the region R2 in the negative direction of the axis Y. ing. Although not shown, the gel HV is also applied to the region between the nail plate N and the finger F via the position in the negative direction of the axis Z of the region R2. Then, the gel HV coated in this way is irradiated with ultraviolet rays by the lamp L, so that the gel HV is cured.
  • the shape of the cured gel HV is fixed so as to support the nail plate N.
  • the adhesion between the orthodontic appliance 1 and the nail plate N becomes stronger than that shown in FIG. 4 and the like, and when the practitioner tilts the orthodontic appliance 1 as shown in step ST6 of FIG.
  • the fixation is maintained. That is, when the practitioner determines that the gel HV can also be applied to the region R1 between the nail plate N and the finger F, the gel HV is applied as shown in FIG. 10 to more firmly correct the nail.
  • the tool 1 and the nail plate N can be fixed. This makes it possible to effectively correct highly deformed nails.
  • the practitioner determines that the gel HV cannot be applied to the region R1 between the nail plate N and the finger F and the region R2 in the negative direction of the axis Y of the nail plate N described with reference to FIGS. 9 and 10 and the like.
  • the gel HV application method as shown in FIG. 9 is not adopted, but the application method of step ST4 shown in FIG. 4 is adopted. Suitable.
  • the nail plate N is shorter than the finger F (in a state close to a so-called deep nail), it is preferable not to adopt the gel HV application method as shown in FIG.
  • the nail plate N is deformed and the nail straightening tool 1 itself is also deformed. Further, in the above description of FIG. 5B, the end portion of the nail plate N is lifted by using the nail correction tool 1. Further, in the above-mentioned example of FIG. 5C, the nail correction tool 1 is not (relatively) deformed, and the nail plate N is deformed. As described above, whether or not the nail plate N is deformed depends on the balance between the restoring force of the nail plate N and the restoring force of the nail correction tool 1. Here, if the thickness L3 of the nail straightening tool 1 is different, the restoring force of the nail straightening tool 1 is different. Therefore, as described above, a plurality of types of nail straighteners 1 having different thicknesses L3 are prepared.
  • FIG. 11 is a diagram illustrating another example different from FIGS. 7 to 10 relating to the use of a nail straightener. That is, in the example of FIG. 11, among the nail straightening tools of the present embodiment, it is a figure showing an example of correction by a nail straightening tool 1a having a high restoring force and a large thickness. Specifically, the example of correction shown in FIG. 11 shows an example in which the nail of the above-mentioned example of FIG. 5B is corrected by using a nail correction tool 1a having a higher restoring force because the thickness L3 is larger. .. In the example of FIG. 11, the nail straightener 1a is not deformed because the thickness L3 is large.
  • the nail plate N is firmly fixed to the end 31 of the curved portion 21 of the nail straightener 1a by a gel (not shown). Then, as shown on the left side of FIG. 5B, the positive side of the axis X of the nail straightener 1a is pushed down in the negative direction of the axis Z. As a result, the nail plate N is deformed from the shape shown in FIG. 5B, as shown in FIG. As described above, the nail correction tool of the present embodiment can deform the nail plate N at the time of treatment by attaching and fixing the gel only in the positive direction of the axis ZF of the nail plate N.
  • the conventional orthodontic appliance aimed to promote the deformation of the nail plate N by performing the treatment many times over a long period of time. Furthermore, even though it took a long time, there were some who did not deform due to their small restoring force and had little effect.
  • the nail correction tool 1 of the present embodiment has a high restoring force, the ingrown toenail is deformed by one treatment so that the fingernail N does not bite into the finger F. It is possible to relieve pain and the like. Furthermore, since the nail corrector 1 is fixed to the nail plate N by using a gel, it can be applied to a nail having a shape that is difficult to perform in the conventional treatment. Although the nail straightening tool 1a having a larger thickness L3 than the nail straightening tool 1 in the example of FIG. 5B has been described using the example of FIG. 11, it is also applied to each of the other nail shapes described above. It is possible. That is, the practitioner can change the amount of deformation of the nail plate N by using a nail correction tool 1 having a different thickness L3 as appropriate according to each nail shape.
  • the nail corrector 1 of the present embodiment is useful not only for the above-mentioned various nail shapes but also for ingrown nails that are not ingrown nails and nails that are also deep nails.
  • the characteristics of an ingrown toenail which is not an ingrown toenail but also an ingrown toenail, and which is also an ingrown toenail, will be described using a coordinate system with reference to the finger F shown in FIG. Since such a claw is a deep claw, it is short in the direction of the axis YF. Further, the ingrown toenail, which is not an ingrown toenail, has less curvature in the axis ZF direction.
  • the end of the nail in the direction of the axis XF is shallowly recessed with respect to the finger F in a direction substantially parallel to the XF-YF plane.
  • the flesh of the finger F rides on the axis ZF of the nail plate N in the positive direction.
  • the length of the nail plate N in the direction of the axis ZF becomes shorter due to the raised meat.
  • the ingrown toenail which is not an ingrown toenail and is also an ingrown toenail, is short in the direction of the axis XF and the direction of the axis YF. That is, the area is small when the axis ZF is viewed from the positive direction.
  • the nail straightener 1 of the present embodiment has a high restoring force and a curved portion 21, so that it is possible to exert a force for straightening even a nail having a small area. That is, the nail correction tool 1 of the present embodiment can appropriately correct even highly deformed nails such as ingrown nails that are not ingrown nails and nails having a shape that is also deep nails.
  • FIG. 12 is a diagram illustrating another example different from FIGS. 7 to 11 relating to the use of a nail straightener. That is, as shown in FIG. 12, the practitioner can scrape off a part of the thick nail plate N and fix it with a gel in a state where the nail correction tool 1 is fitted in the scraped space. Specifically, first, the practitioner scrapes the region R3 of the nail plate N in FIG. 12.
  • the practitioner applies the gel in the region R3, and in a state where the nail straightening tool 1 is fitted as shown by an arrow, the gel is cured by using the lamp L.
  • the nail straightener 1 and the nail plate N are more firmly fixed to each other.
  • the area of contact between the nail straightener 1 and the nail plate N can be increased. This makes the fixation stronger. Further, although not shown, when the gel is applied in the negative direction of the axis XF of the gel spot 41 of the nail corrector 1 fitted in the region R3, the cured gel is integrated (the structure in the axis XF direction is small). Because of), the fixation becomes stronger.
  • the practitioner uses the gel spots 41 and 42 as indicators to determine the position to which the adhesive is applied and the amount of the adhesive to be applied. Further, it is said that 3 mm is adopted as the length L6 in the present embodiment as a guideline for applying such an appropriate amount of adhesive, but the amount of gel applied is limited to this. Not done. That is, for example, it is sufficient for the practitioner to adjust the amount of gel applied using the gel spots 41 and 42 as indicators.
  • the practitioner may have a limited degree of fixation of the nail straightening tool 1 so that the practitioner can easily peel it off for re-correction based on the shape of the nail plate N and the history of correction so far.
  • the practitioner can apply the gel to a predetermined ratio (for example, 20%) of the gel spot 41 and fix it.
  • the practitioner determines that the nail correction tool 1 needs to be firmly fixed based on the shape of the nail plate N and the history of correction so far.
  • the practitioner can apply the gel to the entire area (that is, 100%) of the gel spot 41 and fix it.
  • the gel spot 41 is used as an index on the non-contact side of the nail plate N and the nail correction tool 1 (region R1 in FIG. 9) and the nail plate. It is also possible to fix the nail more firmly by wrapping around the region R2 in the negative direction of the axis YF where N is extended and applying it in all directions as much as possible.
  • the gel spots 41 and 42 are indicators for the practitioner to grasp the amount of gel applied and the position of application, and the convenience of the treatment can be improved.
  • the nail straightener 1 of the present embodiment when using the nail straightener 1 of the present embodiment, it is because the gel HV that is cured by the ultraviolet rays from the lamp L is used, that is, according to the judgment of the practitioner, that is, the state of the nail plate N. It is possible to freely fix the nail straightening tool 1.
  • the nail straightening tool 1 of the present embodiment has the gel spots 41 and 42 and the like, so that the convenience when using the gel HV can be improved.
  • the side edge Nm is corrected by using one nail straightening tool 1, but the present invention is not limited to this. That is, for example, the side edge Nm and the side edge Np may be corrected at the same time by bringing one nail straightening tool 1 into contact with the side edge Nm from the side edge Np.
  • the gel HV is used when the end portion 31 is brought into contact with the side edge Nm, but the present invention is not particularly limited to this, and the gel is used when the end portion 31 is brought into contact with the side edge Nm. LV may be used.
  • the nail straightener 1 to which the present invention is applied is sufficient as long as it is as follows, and various embodiments can be taken.
  • the nail correction tool to which the present invention is applied is A plate-shaped nail corrector having a contact surface (bottom surface 12) that abuts on the nail (nail plate N).
  • the contact surface is A straight line portion (straight line portion 22) having a first length (length L2 in FIG. 2) and A curved portion (curved portion 21) having a second length (length L1 in FIG. 2) shorter than the first length and having a convex curvature on the claw side to be abutted against.
  • the straight portion portion has the end portion as an action point and a point of the curved portion separated from the end portion as a fulcrum.
  • One point is a force point, and when a force is applied to the force point, the first nail correction function (for example, the first nail correction function of FIGS. 5B and 5C) that separates the edge of the nail from the skin by the principle of leverage. ) To prepare for.
  • the first nail correction function for example, the first nail correction function of FIGS. 5B and 5C
  • an appropriate load is applied to the shape of the deformed nail (for example, the side edge Nm in FIGS. 5B and 5C) that cannot be corrected by the correction method using the elasto-plastic force (restoring force of the material) of the nail correction tool. Can be added, so that the shape can be effectively corrected.
  • nail straighteners A second nail correction function (for example, FIG. 5A) in which at least a part of the straight line portion is brought into contact with the nail including the edge portion to separate the edge portion of the nail from the skin by using elasto-plastic force. Second nail correction function) Further prepare.
  • an appropriate load can be applied to the entire nail plate deformed into a curved state, so that the shape can be effectively corrected.
  • nail braces The curved portion and the straight portion of the contact surface are indicators of places where an adhesive for abutting the nail straightener is attached to the nail including the edge portion at each end. It has sites (gel spots 41 and 42).
  • an appropriate amount of adhesive for fixing the nail straightener to the nail plate can be applied to an appropriate position, which prevents the nail straightener from peeling off or the side edges from being lifted during straightening. can do.
  • the curved portion has a region that can serve as a fulcrum in the first claw correction function.

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  • Health & Medical Sciences (AREA)
  • Nursing (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
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  • Veterinary Medicine (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)
PCT/JP2021/036839 2020-11-12 2021-10-05 爪矯正具 Ceased WO2022102285A1 (ja)

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KR102815899B1 (ko) * 2024-07-25 2025-05-30 김민수 이물감을 저감하고 밀착력을 개선하여 시술의 완성도를 높이기 위한 내향성 손발톱 교정구의 사용법에 대한 정보 제공 방법

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1785376A (en) * 1928-12-22 1930-12-16 Buckner Irwin Orthopedic appliance
JP2003010218A (ja) * 2001-06-27 2003-01-14 Isao Maruoka 陥入爪矯正具
JP2010142588A (ja) * 2008-12-22 2010-07-01 Aso Seiyaku Kk 巻き爪矯正具
JP2015080703A (ja) * 2013-10-24 2015-04-27 俊二 鈴木 重度巻き爪の予備矯正用具
KR20170092492A (ko) * 2017-07-24 2017-08-11 이기영 내향성 손발톱 교정장치

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011024776A (ja) * 2009-07-24 2011-02-10 Aso Seiyaku Kk 巻き爪矯正具

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1785376A (en) * 1928-12-22 1930-12-16 Buckner Irwin Orthopedic appliance
JP2003010218A (ja) * 2001-06-27 2003-01-14 Isao Maruoka 陥入爪矯正具
JP2010142588A (ja) * 2008-12-22 2010-07-01 Aso Seiyaku Kk 巻き爪矯正具
JP2015080703A (ja) * 2013-10-24 2015-04-27 俊二 鈴木 重度巻き爪の予備矯正用具
KR20170092492A (ko) * 2017-07-24 2017-08-11 이기영 내향성 손발톱 교정장치

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