国产911高清黄片_日韩精品无码免费视频不卡_欧美日韩中文字幕在线_大片刺激免费播放视频_黑人特大与日本娇小瘦小_国产女同疯狂作爱2_国产午夜免费网站_日韩片婬乱一级涩爱av_亚洲欧洲精品主播一区二区_综合久久中文精品视频

First aid measures of tourniquet

2019-03-29 16:54

Usage of tourniquet ligation method rubber tourniquet: left hand holding rubber belt, about 16 cm behind; right hand tightening ring body ligation, front hand to left hand, middle index two fingers, pulling down along the limbs, inserting in the front ring, to ensure not loosening. In case of massive hemorrhage of extremities, tourniquet is needed and there is no rubber tourniquet on site, local materials can be obtained, such as cloth tourniquet, thread or hemp rope. When using cloth tourniquet to stop bleeding, put in a flat ring and tighten and fix it. When using rope or hemp rope to stop bleeding, it can be tightened and fixed.