止血带的使用简单，但使用原理复杂。只有准确掌握这些原理并正确使用，才能挽救生命和肢体，否则会导致截肢和残疾。
The use of
tourniquet is simple, but the principle of use is complex. Only by
accurately grasping these principles and using them correctly can we
save lives and limbs, otherwise it may lead to amputation and
disability.
1.戴止血带前，应抬高受伤肢体，促进静脉血回流体内，从而减少失血。
1. Before wearing a
tourniquet, the injured limb should be raised to promote the return of
venous blood to the body, so as to reduce blood loss.
2.上止血带的位置应在有效止血的前提下尽可能靠近出血部位。但禁止在上臂中部使用止血带，因为有桡神经穿过肱骨表面，止血带压迫会造成桡神经损伤，使以后前臂以下功能难以恢复。
2.
The upper tourniquet should be as close to the bleeding site as
possible under the premise of effective hemostasis. However, it is
prohibited to use a tourniquet in the middle of the upper arm, because
the radial nerve passes through the surface of the humerus, and the
compression of the tourniquet will cause radial nerve injury, making it
difficult to recover the function below the forearm in the future.
3.止血带不能直接绑在肢体上，准备止血带的部位要垫上敷料、毛巾等软布垫，以保护皮肤。
3.
The tourniquet should not be directly tied to the limbs. The parts
where the tourniquet is prepared should be padded with soft cloth pads
such as dressings and towels to protect the skin.
4.用毛巾、大手帕现场制作布制止血带时，应折叠成宽度约5厘米的长条，使力均匀。严禁使用细而无弹性的物品如铁丝、、铁丝、、细绳等作为止血带，因为这些物品不仅止血效果差，还会损伤皮肤，给以后的治疗康复带来麻烦。
4.
When making cloth tourniquet with towel and bandanna on site, it should
be folded into a strip with a width of about 5cm to make the force
even. It is strictly prohibited to use thin and inelastic articles such
as iron wire, iron wire, string, etc. as tourniquet, because these
articles not only have poor hemostatic effect, but also damage the skin,
causing trouble for future treatment and rehabilitation.
5.扎止血带时，建议只需按压动脉出血即可收紧止血带。上带收紧容易造成止血带处皮肤、神经、血管和肌肉损伤，甚至造成肢体远端坏死，不利于受伤肢体以后的功能恢复。胶布只压迫静脉而不压迫动脉，血液无法流出，不仅不能止血，反而加重出血。上环成功的标准是远端动脉出血停止，动脉搏动消失，四肢变白。
5.
When tying the tourniquet, it is recommended to tighten the tourniquet
only by pressing the artery to bleed. The tightening of the upper band
is likely to cause skin, nerve, blood vessel and muscle damage at the
tourniquet, or even necrosis of the distal limb, which is not conducive
to the functional recovery of the injured limb. The adhesive tape only
compresses the vein but not the artery, so the blood cannot flow out,
which can not stop the bleeding, but aggravate the bleeding. The
criteria for successful IUD insertion are cessation of distal arterial
bleeding, disappearance of arterial pulsation, and whitening of limbs.
6.佩戴止血带的受伤人员应有明显标志，佩戴时间应清楚地写在止血带附近或皮肤上。为防止受伤肢体缺血坏死，每40 ~ 60分钟松开止血带1 ~ 2分钟，松开止血带时动作要缓慢，同时需要型线 流水槽模具 景观石 检查井钢模具 保定通风管道 隔离墩模具 保定保洁公司手指按压以减少出血。如果伤员一般情况较差，伤口较大，出血较多，可适当延长放松止血带的时间间隔。但止血带总使用时间不能超过3小时，否则远端肢体难以存活
6.
The injured person wearing a tourniquet should have a clear sign, and
the wearing time should be clearly written near the tourniquet or on the
skin. To prevent ischemia and necrosis of injured limbs, loosen the
tourniquet every 40~60 minutes for 1~2 minutes. When loosening the
tourniquet, move slowly, and press with fingers to reduce bleeding. If
the general condition of the wounded is poor, the wound is large, and
there is more bleeding, the time interval for relaxing the tourniquet
can be appropriately extended. However, the total use time of tourniquet
shall not exceed 3 hours, otherwise the distal limb will not survive
