WO2021065645A1 - 変形爪矯正具 - Google Patents
変形爪矯正具 Download PDFInfo
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- WO2021065645A1 WO2021065645A1 PCT/JP2020/035922 JP2020035922W WO2021065645A1 WO 2021065645 A1 WO2021065645 A1 WO 2021065645A1 JP 2020035922 W JP2020035922 W JP 2020035922W WO 2021065645 A1 WO2021065645 A1 WO 2021065645A1
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- coil
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- deformed
- spring constant
- mounting portion
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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. splints, casts or braces
- A61F5/11—Devices for correcting deformities of the nails
Definitions
- the present invention relates to a deformed nail corrector for correcting deformed nails such as ingrown toenail and ingrown toenail.
- Patent Document 1 As a conventional deformed nail correction tool, for example, the one described in Patent Document 1 is known.
- This deformed nail corrector is capable of changing the distance between the first hook attached to one end in the width direction of the deformed nail, the second hook attached to the other end in the width direction of the deformed nail, and the first hook and the second hook.
- a coil member configured to be stretchable and a wire member having superelastic characteristics arranged in the coil member are provided. According to this deformed nail corrector, by utilizing the elasticity of the coil member, it becomes easy to attach the deformed nail to the deformed nail.
- the deformed nail straightener When the deformed nail straightener is attached to the deformed nail, if the distance between the first hook and the second hook is larger than the total length of the wire member, there may be a portion where the wire member does not exist at one end or the other end of the coil member. ..
- the coil member bends at a steep angle (for example, 90 °), and the wire member pops out from the gap created by the bending. There is a risk of
- the present invention has been made in view of the above circumstances, and an object of the present invention is to provide a deformed nail straightener capable of suppressing the wire member from popping out from a gap of the coil member.
- the deformed nail correction tool according to the present invention.
- a deformed nail straightener for correcting deformed nails A first hook configured to be attached to one end in the width direction of the deformed claw, A second hook configured to be attached to the other end of the deformed claw in the width direction, A coil member configured so that one end side is joined to the first hook, the other end side is joined to the second hook, and the distance between the first hook and the second hook can be changed.
- a wire member having superelastic properties arranged in the coil member and With The coil member is The end of the first coil, which is located on the first hook side and has the first spring constant, A second coil end located on the second hook side and having a second spring constant, A coil intermediate portion located between the end of the first coil and the end of the second coil and having a third spring constant smaller than the first spring constant and smaller than the second spring constant.
- the coil member is The end of the first coil, which is located on the first hook side and has the first spring constant, A second coil end located on the second hook side and having a second spring constant, A coil intermediate portion located between the end of the first coil and the end of the second coil and having a third spring constant smaller than the first spring constant and smaller than the second spring constant.
- the coil member when the distance between the first hook and the second hook is widened, the coil member has preferentially extended the coil intermediate portion having a small spring constant, and the first coil end portion and the second coil end having a large spring constant have a large spring constant.
- the portion becomes difficult to extend.
- the end portion of the first coil and the end portion of the second coil are less likely to bend due to improved adhesion of the wire rod forming the coil. Therefore, according to this configuration, it is possible to prevent the wire member from popping out from the gap between the coil members.
- the outer diameter of the coil intermediate portion is larger than the outer diameter of the first coil end portion and the outer diameter of the second coil end portion and is pitch-wound.
- the first hook and the coil member are joined by welding on the front side and the back side, respectively.
- the second hook and the coil member can be configured to be joined by welding on the front side and the back side, respectively.
- the first hook is A first mounting portion for sandwiching one end of the deformed claw in the width direction, Above the first mounting portion, there is a first insertion portion configured so that one end side of the wire member can be inserted.
- the second hook is A second mounting portion for sandwiching the other end of the deformed claw in the width direction, Above the second mounting portion, the other end side of the wire member can be configured to have a second insertion portion configured to be insertable.
- the opening width of the first mounting portion is widest on the entrance side of the opening.
- the opening width of the second mounting portion can be configured to be widest on the entrance side of the opening.
- the deformed nail corrector according to the present invention is for correcting deformed nails such as ingrown toenail and ingrown toenail (particularly, deformed toenail of the foot).
- FIG. 1 shows a front view of the deformed nail straightener 100 according to the embodiment of the present invention.
- FIG. 2 shows a perspective view of the deformed nail straightener 100.
- the deformable nail straightener 100 includes a first hook 110, a second hook 120, a coil member 130, and a wire member 140.
- the first hook 110 is configured so that it can be attached to one end in the width direction of the deformed claw.
- the first hook 110 is made of, for example, stainless steel (for example, SUS304) and is joined to one end side of the coil member 130.
- the first hook 110 has a first mounting portion 111 for sandwiching one end in the width direction of the deformed claw, and a first insertion portion 112 configured so that one end side of the wire member 140 can be inserted.
- the first mounting portion 111 is curved in a substantially U-shaped cross section.
- a plurality of first mounting portions 111 are provided on the lower surface of the upper portion in contact with the front side of one end in the width direction of the deformed claw and the upper surface of the lower portion in contact with the back side of one end in the width direction of the deformed claw (in the present embodiment, on the upper portion). It has four, two) barbs 113 in the lower part. The barb 113 enhances the certainty of attachment to the deformed nail.
- the first mounting portion 111 has a recess 114 located at the back of the opening between the upper portion and the lower portion.
- the opening width of the first mounting portion 111 is the widest on the entrance side of the opening. As shown in FIG. 3, the opening width X1 on the entrance side of the opening is wider than the opening width X2 on the back side of the opening. For example, with the first mounting portion 111 attached to one end in the width direction of the deformed claw, the first mounting portion 111 is crushed with pliers or the like to deform the shape of the first mounting portion 111, thereby deforming the first mounting portion 111. Can be fixed to the deformed nail. As described above, by making the opening width X1 on the entrance side of the opening the widest, it is possible to easily attach the first mounting portion 111 to the deformed claw and improve the adhesion of the first mounting portion 111 to the deformed claw. ..
- the first insertion portion 112 is provided above the first mounting portion 111 and has a first facing surface facing one end side of the coil member 130.
- a first groove portion is formed on the first facing surface so that one end side of the wire member 140 can be inserted.
- the first groove portion may receive a repulsive force generated at one end of the wire member 140. it can.
- the second hook 120 is configured so that it can be attached to the other end in the width direction of the deformed claw.
- the second hook 120 is made of, for example, stainless steel (for example, SUS304) and is joined to the other end side of the coil member 130.
- the second hook 120 has a second mounting portion 121 for sandwiching the other end in the width direction of the deformed claw, and a second insertion portion 122 configured so that the other end side of the wire member 140 can be inserted.
- the second mounting portion 121 is curved in a substantially U-shaped cross section.
- a plurality of second mounting portions 121 are provided on the lower surface of the upper portion in contact with the front side of the other end in the width direction of the deformed claw and the upper surface of the lower portion in contact with the back side of the other end in the width direction of the deformed claw (upper side in the present embodiment). It has four barbs 123 in the portion and two in the lower portion). The barb 123 enhances the certainty of attachment to the deformed nail.
- the second mounting portion 121 has a recess 124 located at the back of the opening between the upper portion and the lower portion.
- the opening width of the second mounting portion 121 is the widest on the entrance side of the opening, similar to the opening width of the first mounting portion 111.
- the second mounting portion 121 is crushed with pliers or the like to deform the shape of the second mounting portion 121, thereby deforming the second mounting portion 121.
- 121 can be fixed to the deformed claw.
- by making the opening width on the entrance side of the opening the widest it is possible to facilitate the attachment of the second mounting portion 121 to the deformed claw and improve the adhesion of the second mounting portion 121 to the deformed claw.
- the second insertion portion 122 is provided above the second mounting portion 121 and has a second facing surface facing the other end side of the coil member 130.
- a second groove portion is formed on the second facing surface so that the other end side of the wire member 140 can be inserted.
- the coil member 130 is configured so that one end side is joined to the first hook 110, the other end side is joined to the second hook 120, and the distance between the first hook 110 and the second hook 120 can be changed. ing.
- the coil member 130 is made of a flexible and stretchable metal such as stainless steel (eg SUS304) or a cobalt-based alloy.
- the coil member 130 includes a first coil end 131 located on the first hook 110 side, a second coil end 132 located on the second hook 120 side, and a coil intermediate 133 located in the middle.
- the length (natural length) of the coil member 130 is 18 [mm]
- the length (natural length) of the first coil end 131, the second coil end 132, and the coil intermediate 133 is any. Is also 6 [mm].
- the length of the coil intermediate portion 133 can be appropriately set in the range of 5% to 90% of the natural length of the coil member 130.
- the first coil end 131 has a first spring constant (0.17 [kg / mm] in this embodiment).
- the second coil end 132 has a second spring constant (0.17 [kg / mm] in this embodiment).
- the coil intermediate portion 133 has a third spring constant (0.11 [kg / mm] in this embodiment) that is smaller than the first spring constant and smaller than the second spring constant.
- the first spring constant and the second spring constant may have different values.
- the first coil end 131 and the second coil end 132 are close-knit windings in which the windings of adjacent wire rods forming the coil are in close contact with each other.
- the coil intermediate portion 133 is a pitch winding in which the windings of adjacent wire rods forming the coil are separated from each other.
- FIG. 4 shows an enlarged cross-sectional view of the portion A of FIG. 1 (the connecting portion between the first coil end portion 131 and the coil intermediate portion 133).
- the first coil end 131, the coil intermediate 133, and the second coil end 132 are made of a single wire and have the same wire diameter (0.25 [mm] in this embodiment). Have.
- the outer diameter of the coil intermediate portion 133 is larger than the outer diameter of the first coil end portion 131 and the outer diameter of the second coil end portion 132. Specifically, the outer diameter of the coil intermediate portion 133 is 17% larger than the outer diameter of the first coil end portion 131. The outer diameter of the first coil end 131 and the outer diameter of the second coil end 132 have the same size. The outer diameter of the coil intermediate portion 133 can be appropriately set in the range of 5% to 50% with respect to the outer diameter of the first coil end portion 131 and the outer diameter of the second coil end portion 132.
- the initial tension of the first coil end 131 and the second coil end 132 is 0.09 [kg], whereas the initial tension of the coil intermediate 133 is 0.
- the coil intermediate portion 133 is preferentially extended in the coil member 130. Specifically, the coil intermediate portion 133 is preferentially extended until the tension of the coil intermediate portion 133 reaches the initial tension of the first coil end portion 131 and the second coil end portion 132.
- the first coil end 131 and the second coil end 132 extend in addition to the coil intermediate 133.
- the coil member 130 of the present embodiment has a first coil end portion when the distance between the first hook 110 and the second hook 120 is widened as compared with a conventional coil member having a uniform spring constant over the entire length.
- the adhesion of the wire winding at the 131 and the end 132 of the second coil is improved.
- the gap between the windings of the wire rods at the first coil end 131 and the second coil end 132 is reduced as compared with the conventional coil member.
- the coil member 130 of the present embodiment even if there is a place where the wire member 140 does not exist in the first coil end 131 or the second coil end 132, the first coil end 131 and the first coil member 130 The end 132 of the two coils is less likely to bend, and it is possible to prevent the wire member 140 from popping out from the gap between the windings of the wire rod.
- the first hook 110 and the first coil end 131 are formed with welded portions 151 to join the first hook 110 and the first coil end 131 on the front side and the back side, respectively.
- the second hook 120 and the second coil end 132 have welded portions 152 formed on the front side and the back side, respectively, to join the two.
- welded portions 151 and 152 are omitted.
- laser overlay welding can be adopted in which laser welding at multiple points (for example, three points) is performed at one location while supplying a predetermined metal.
- the wire member 140 is movably (for example, slidable) arranged in the coil member 130.
- the wire member 140 has superelastic properties and plays a role of straightening deformed nails.
- the superelastic property refers to a property in which, for example, the deformation caused by stress-induced martensitic transformation during loading is restored by reverse transformation during unloading.
- the wire member 140 has a linear shape.
- the wire member 140 is made of, for example, a Ni—Ti alloy and has a total length (19 [mm] in this embodiment) longer than the natural length of the coil member 130.
- the shape, material, etc. of the first hook of the present invention can be appropriately changed as long as it can be attached to one end in the width direction of the deformed claw.
- the shape, material, and the like of the second hook of the present invention can be appropriately changed as long as it can be attached to the other end of the deformed claw in the width direction.
- the coil member of the present invention is between the first coil end having the first spring constant, the second coil end having the second spring constant, and both (the first coil end and the second coil end).
- the configuration can be appropriately changed as long as it includes a first spring constant and a coil intermediate portion having a third spring constant smaller than the second spring constant.
- the third spring constant is changed to the first spring constant and the second spring constant by means such as partially changing the size of the outer diameter and / or partially changing the initial tension. Can be smaller than.
- the material of the coil member can be changed as appropriate as long as it has flexibility and elasticity.
- a method other than welding can be applied to join the coil member to the first hook and the second hook.
- methods such as crimping, brazing adhesive, and resin adhesive can be applied.
- the wire member of the present invention has superelastic properties, and its shape, material, etc. can be appropriately changed as long as it is movably arranged in the coil member.
- a superelastic metal such as Ni—Ti—Co alloy or Ni—Ti—Fe alloy may be used.
- high-strength, high-toughness engineering plastics may be used.
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Abstract
Description
変形爪を矯正するための変形爪矯正具であって、
前記変形爪の幅方向一端に取り付け可能に構成された第1フックと、
前記変形爪の幅方向他端に取り付け可能に構成された第2フックと、
一端側が前記第1フックに接合され、他端側が前記第2フックに接合されるとともに、前記第1フックと前記第2フックとの間隔を変更できるように伸縮可能に構成されたコイル部材と、
前記コイル部材の中に配置された超弾性特性を有するワイヤー部材と、
を備え、
前記コイル部材は、
前記第1フック側に位置し、第1のバネ定数を有する第1コイル端部と、
前記第2フック側に位置し、第2のバネ定数を有する第2コイル端部と、
前記第1コイル端部と前記第2コイル端部との間に位置し、前記第1のバネ定数よりも小さく、かつ前記第2のバネ定数よりも小さい第3のバネ定数を有するコイル中間部と、
を含むことを特徴とする。
前記コイル中間部は、外径が前記第1コイル端部の外径および前記第2コイル端部の外径よりも大きく、かつピッチ巻きであることが好ましい。
前記第1フックと前記コイル部材とは、正面側と背面側のそれぞれにおいて溶接により接合されており、
前記第2フックと前記コイル部材とは、正面側と背面側のそれぞれにおいて溶接により接合されているよう構成できる。
前記第1フックは、
前記変形爪の前記幅方向一端を挟み込むための第1装着部と、
前記第1装着部の上方において、前記ワイヤー部材の一端側が挿入可能に構成された第1挿入部と、を有し、
前記第2フックは、
前記変形爪の前記幅方向他端を挟み込むための第2装着部と、
前記第2装着部の上方において、前記ワイヤー部材の他端側が挿入可能に構成された第2挿入部と、を有するよう構成できる。
前記第1装着部の開口幅は、開口の入口側が最も広く、
前記第2装着部の開口幅は、開口の入口側が最も広くなるよう構成できる。
以上、本発明に係る変形爪矯正具の実施形態について説明したが、本発明は上記実施形態に限定されるものではない。
110 第1フック
111 第1装着部
112 第1挿入部
113 かえし
114 凹部
120 第2フック
121 第2装着部
122 第2挿入部
123 かえし
124 凹部
130 コイル部材
131 第1コイル端部
132 第2コイル端部
133 コイル中間部
140 ワイヤー部材
151、152 溶接部
Claims (5)
- 変形爪を矯正するための変形爪矯正具であって、
前記変形爪の幅方向一端に取り付け可能に構成された第1フックと、
前記変形爪の幅方向他端に取り付け可能に構成された第2フックと、
一端側が前記第1フックに接合され、他端側が前記第2フックに接合されるとともに、前記第1フックと前記第2フックとの間隔を変更できるように伸縮可能に構成されたコイル部材と、
前記コイル部材の中に配置された超弾性特性を有するワイヤー部材と、
を備え、
前記コイル部材は、
前記第1フック側に位置し、第1のバネ定数を有する第1コイル端部と、
前記第2フック側に位置し、第2のバネ定数を有する第2コイル端部と、
前記第1コイル端部と前記第2コイル端部との間に位置し、前記第1のバネ定数よりも小さく、かつ前記第2のバネ定数よりも小さい第3のバネ定数を有するコイル中間部と、
を含むことを特徴とする変形爪矯正具。 - 前記コイル中間部は、外径が前記第1コイル端部の外径および前記第2コイル端部の外径よりも大きく、かつピッチ巻きであることを特徴とする請求項1に記載の変形爪矯正具。
- 前記第1フックと前記コイル部材とは、正面側と背面側のそれぞれにおいて溶接により接合されており、
前記第2フックと前記コイル部材とは、正面側と背面側のそれぞれにおいて溶接により接合されていることを特徴とする請求項1に記載の変形爪矯正具。 - 前記第1フックは、
前記変形爪の前記幅方向一端を挟み込むための第1装着部と、
前記第1装着部の上方において、前記ワイヤー部材の一端側が挿入可能に構成された第1挿入部と、を有し、
前記第2フックは、
前記変形爪の前記幅方向他端を挟み込むための第2装着部と、
前記第2装着部の上方において、前記ワイヤー部材の他端側が挿入可能に構成された第2挿入部と、を有することを特徴とする請求項1に記載の変形爪矯正具。 - 前記第1装着部の開口幅は、開口の入口側が最も広く、
前記第2装着部の開口幅は、開口の入口側が最も広いことを特徴とする請求項4に記載の変形爪矯正具。
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Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3173416A (en) * | 1962-11-27 | 1965-03-16 | Joseph E Rederich | Toenail straightening and restoring appliance |
JP2007330461A (ja) * | 2006-06-14 | 2007-12-27 | Shuichi Miyazaki | 医療機器 |
JP2010091058A (ja) * | 2008-10-10 | 2010-04-22 | Union Bed Seizo Kk | コイルスプリング及びそれを利用したマットレス |
JP2010155059A (ja) * | 2008-12-02 | 2010-07-15 | Shikahama Seisakusho:Kk | バネ状巻き爪矯正具 |
WO2010101238A1 (ja) * | 2009-03-06 | 2010-09-10 | 大澤 たんぽぽ | 巻き爪矯正用具 |
JP2017186085A (ja) * | 2016-04-01 | 2017-10-12 | 株式会社 資生堂 | 液体噴出ポンプ |
KR20170125200A (ko) * | 2016-05-04 | 2017-11-14 | 이강규 | 형상기억합금 탄성체를 이용한 손발톱 교정기 |
WO2018216244A1 (ja) * | 2017-05-26 | 2018-11-29 | マルホ発條工業株式会社 | 変形爪矯正具 |
-
2020
- 2020-09-24 WO PCT/JP2020/035922 patent/WO2021065645A1/ja active Application Filing
- 2020-09-24 JP JP2021550665A patent/JP7478746B2/ja active Active
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3173416A (en) * | 1962-11-27 | 1965-03-16 | Joseph E Rederich | Toenail straightening and restoring appliance |
JP2007330461A (ja) * | 2006-06-14 | 2007-12-27 | Shuichi Miyazaki | 医療機器 |
JP2010091058A (ja) * | 2008-10-10 | 2010-04-22 | Union Bed Seizo Kk | コイルスプリング及びそれを利用したマットレス |
JP2010155059A (ja) * | 2008-12-02 | 2010-07-15 | Shikahama Seisakusho:Kk | バネ状巻き爪矯正具 |
WO2010101238A1 (ja) * | 2009-03-06 | 2010-09-10 | 大澤 たんぽぽ | 巻き爪矯正用具 |
JP2017186085A (ja) * | 2016-04-01 | 2017-10-12 | 株式会社 資生堂 | 液体噴出ポンプ |
KR20170125200A (ko) * | 2016-05-04 | 2017-11-14 | 이강규 | 형상기억합금 탄성체를 이용한 손발톱 교정기 |
WO2018216244A1 (ja) * | 2017-05-26 | 2018-11-29 | マルホ発條工業株式会社 | 変形爪矯正具 |
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