PROBLEM TO BE SOLVED: To provide a wrist joint fixture allowing a user to easily wear the fixture by himself/herself, and to securely fix the wrist joint.SOLUTION: The wrist joint fixture includes a back covering part 11 attached to cover at least the part of a hand on the back side from a wrist area to the metacarpus area, and a palm covering part 12 attached to over at least the wrist area on the palm side. The back covering part 11 has a hand belt 22 extending in the lateral direction to be wound around the metacarpus, and the palm covering part 12 has a wrist belt 11 extending in the lateral direction to be wound around the wrist.COPYRIGHT: (C)2013,JPO&INPIT【課題】被使用者が一人で簡単に装着できるとともに、手関節を確実に固定することができる手関節固定具を提供する。【解決手段】少なくとも手の甲側の手関節部分から中手骨部分を覆うように被着される甲側被覆部11と、少なくとも掌側の手関節部分を覆うように被着される掌側被覆部12とを備え、甲側被覆部11には中手骨回りに巻回されるハンドベルト部22が、掌側被覆部12には手関節回りに巻回されるリストベルト部11がそれぞれその幅方向に延設されている。【選択図】図1