目前各医院检验科常规采血所用的采血针不一,有的使用一次性采血针,有的仍使用三棱针、注射针及弹簧针等。用上述针头采血,主要是靠操作者手腕的巧力将针刺入采血部位。其缺点是:(1) 难以掌握刺入深度;(2) 刺入速度慢,增加病人痛苦,同时还使部分患者及儿童引起精神紧张;(3) 采 At present, the blood sampling needles used by conventional blood sampling laboratories in various hospital laboratories are different. Some use disposable blood sampling needles, while others still use triangular needles, needles and pogo pins. Needle with the above blood, mainly by the skill of the operator’s wrist acupuncture into the blood collection site. The disadvantages are: (1) it is difficult to grasp the depth of penetration; (2) the penetration speed is slow, which increases the patient’s suffering, at the same time, it also causes some patients and children to cause mental stress; (3)