不用止血带穿刺有以下优势：
No tourniquet puncture has the following advantages:
( 1 ) 避免因使用止血带过程中对 患者造成局部组织中的损伤而产生疼痛和不同程度的手部肿胀感。
(1) avoid pain and different degree of hand swelling caused by local tissue damage caused by tourniquet use.
( 2 ) 减少部分患者因定送水  铜鼎铜钟 淤泥固化设备 化粪池钢模具 拱形骨架模具 保定代理记账 保定道闸
使用止血带而会产生 的紧张情绪, 减少因此间接影响血管的收缩,导致血管痉挛致使穿刺失败。
(2) reduce the tension of some patients caused by using tourniquet, reduce the contraction of blood vessels indirectly, lead to vasospasm and failure of puncture.
(3)无止血带静脉穿刺可避免或减少多余医疗费用的产生和环境污染。
(3) Non tourniquet venipuncture can avoid or reduce the extra medical expenses and environmental pollution.
(4)缩短静脉穿刺的时间。
(4) Shorten the time of venipuncture.
(5)老年人动脉粥样硬化，管腔狭窄，血管增厚，弹性差，脆性增大，皮下脂肪松弛等特点导致穿刺困难，所以穿之前要详细了解血管特点以及血管的深浅和粗细等多方面因素，松解过程、握拳的松紧也会决定止血带穿刺的成功与否，对于一个临床经验不足的护理人员来说，很难掌握其中技巧，无止血带穿刺可以避免这些问题的出现。
(5) Atherosclerosis, stenosis of lumen, thickening of blood vessel, poor elasticity, increasing brittleness and flabby subcutaneous fat in the elderly lead to difficulties in puncture. Therefore, before puncture, it is necessary to know the characteristics of blood vessel and the depth and thickness of blood vessel in detail. The loosening process and the loosening of fist will also determine the success of tourniquet puncture. For a nurse with insufficient clinical experience It is very difficult to master the skills, and endless puncture can avoid these problems.
(6)能减轻患者疼痛。
(6) It can reduce the pain of patient