PROBLEM TO BE SOLVED: To provide a nail correction tool capable of easily and safely administering correction treatment on a rib-like part sunk in a curve-deformed nail and a nail fold soft tissue.SOLUTION: A nail correction tool 10A is worn at a tip edge of a deformed nail 2 to be corrected such as an ingrown nail or sunk nail, thereby correcting the deformed nail 2, and includes: a cylindrical body 11 formed in a cylindrical shape and a slit 12 formed along a longitudinal direction of the cylindrical body 11. The slit 12 includes an upper holding part 13 and a lower holding part 14 arranged on facing end faces thereof and holding the nail. The lower holding part 14 includes a flat part 15 in at least a part thereof. The flat part 15 includes a formation side wall 16 located on a sliding direction end part thereof and arranged in a bend direction. The whole is formed of an elastic material and having a cross section in a generally C-shape.COPYRIGHT: (C)2016,JPO&INPIT【課題】湾曲状変形爪および爪郭軟部組織に埋没したリブ状部を容易かつ安全に矯正治療を可能とする、爪矯正具の提供。【解決手段】爪矯正具10Aは、巻き爪や陥入爪など矯正する変形爪2の先端縁に装着して変形爪2を矯正するものであって、円筒状に形成された筒体11と、この筒体11の長手方向に沿って形成されたスリット12を備え、該スリット12の対向端面に該爪を挟持する上側保持部13と下側保持部14とがあり、該下側保持部14の少なくとも一部には平面状部15が備わり、該平面状部15の摺動方向端部には屈曲方向に設けられた成形用側壁16を具備した、全体が弾性を有する材で断面略C字状に形成されている。【選択図】図1