PROBLEM TO BE SOLVED: To provide a hemostatic unit that can be mounted in a state in which a belt body is adhered to skin at a small area, and that hardly causes inflammation on the skin in a region to which the belt body id adhered even when the unit is mounted for a long period of time.SOLUTION: The hemostatic unit 1 having ventilation means includes: the belt body 2 to be wound around a region to stop bleeding in a limb a bent plate 4 constituted by a material harder than the belt body a surface fastener 3 (a fixing means) for fixing the belt body 2 in a wound state around the limb the balloon 5 connected to the belt body 2 and expanded by the injection of a fluid and a marker 7 for positioning the balloon 5 at the region to stop bleeding. The vent holes 22 (the ventilation means) are arranged in the belt body 2, the surface fastener 3, and the bent plate 4.COPYRIGHT: (C)2012,JPO&INPIT【課題】 帯体の皮膚への密着面積が少ない状態で止血器具を装着することができ、長時間装着しても帯体が密着している部分の皮膚の炎症を起こしにくい止血器具を提供する【解決手段】 本発明の通気手段を設けた止血器具1は、肢体の止血すべき部位に巻き付けるための帯体2と、前記帯体より硬質な材料で構成された湾曲板4と、帯体2を肢体に巻き付けた状態で固定する面ファスナー3(固定手段)と、帯体2に連結された、流体を注入することにより拡張するバルーン5と、バルーン5を止血すべき部位に位置合わせするためのマーカー7とを備え、帯体2、面ファスナー3、湾曲板4に通気孔22(通気手段)が設けられる。【選択図】 図1