PROBLEM TO BE SOLVED: To provide a plantar flexion braking mechanism with a simple structure, by which planter flexion is possible and one can walk in a natural condition, and to provide a short lower limb orthosis using the same.SOLUTION: The plantar flexion braking member 41 is a member which is attached to an Achilles tendon part 22 a foot mounting body 21 or to an Achilles tendon part 12 of a lower limb support body 11 of the short lower limb orthosis 1, in which the foot mounting body 21 for mounting a sole of foot and the lower limb support body 11 for supporting a lower limb are connected in respective ankle parts 23, 13. The plantar flexion braking member 41 is constituted of a compression-deformable soft elastic material, is compressed, and plantar flexes an ankle joint by a predetermined angle after abutting on the Achilles tendon part 12 of the lower limb support body 11 or the Achilles tendon part 22 of the foot mounting body 21.COPYRIGHT: (C)2011,JPO&INPIT【課題】底屈が可能で自然な状態で歩行できる簡易な構造の底屈制動部材及びこれを用いた短下肢装具を提供することを目的とする。【解決手段】底屈制動部材41は、足底を載せるための足載置体21と下腿を支持する下腿支持体11とがそれぞれの踝部23、13で接続される短下肢装具1の足載置体21のアキレス腱部22或いは下腿支持体11のアキレス腱部12に取り付けられる部材である。底屈制動部材41は圧縮変形可能な柔軟性弾性材料から構成され、下腿支持体11のアキレス腱部12或いは足載置体21のアキレス腱部22に当接してから、圧縮されて足首関節を所定角度底屈させる。【選択図】図1
