PROBLEM TO BE SOLVED: To provide a lower limb correction brace for flatfoot, which, when a person steps on the hard ground with a foot, maintains limb biomechanics (accurate alignment of lower limb bones) and which mitigates discomfort and pain due to systemic defective posture by the alignment of disturbed lower limb bones.SOLUTION: The brace contains two bodies 10a in which a wear space is formed inside. Each body 10a includes: a sole part 11； an ankle part 12 which connects to the sole part 11 and in which an opening for connecting to the wear space is formed in the upper part； a lower leg part which connects to the upper part of the ankle part 12； a foundation part 17 which extends from the sole part 11 to the ankle part 12 and which is adjacent to the wear space in a surrounding manner； and a first elastic auxiliary part 18 which extends from the sole part 11 toward the ankle part 12, which goes through an arch of a foot section 113, and which is adjacent to the wear space in a surrounding manner. The first elastic auxiliary part 18 here extends from a position corresponding to the cuboid bone of the human body, successively passing through a position corresponding to the navicular bone of the human body, going through a position corresponding to the ankle bone of the human body in the ankle part 12 obliquely upward, and extending to the lower leg part.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2020,JPO&INPIT【課題】人が足で硬い地面を踏むとき、下肢バイオメカニクスを維持し（正確な下肢骨格の配列）、乱れた下肢骨格の配列によって全身的な姿勢不良からの不快感及び痛みを緩和させる扁平足向け下肢矯正装具を提供する。【解決手段】内部に着用空間が形成される二つの本体１０ａを含み、各本体１０ａは、足裏部１１と、足裏部１１と接続し、上部に着用空間と接続する開口が形成される足首部１２と、足首部１２の上部に接続する下腿部と、足裏部１１から足首部１２まで延在し、着用空間を囲繞するように隣接する基礎部１７と、足裏部１１から足首部１２に向かって延び、足弓区１１３を通って、着用空間を囲繞するように隣接する第１弾性補助部１８と、を備え、ここでの第１弾性補助部１８は、人体の立方骨に対応する位置から延び、人体の舟状骨に対応する位置を順次に通過し、斜め上に向かって足首部１２内の人体の距骨に対応する位置を通って、下腿部まで延在する。【選択図】図１
