一次性使用静脉采集针（硬连接 21G）使用方法   

      1)拧去管塞穿刺针端的保护套。

      2)将管塞穿刺针拧入持针器/套筒并拧紧。

      3)选择合适的静脉，为患者系好压脉带，井对待穿刺部位消毒(禁止在消毒之后用手触摸该区域)。

      4)让患者的手臂下垂放置(上臂和前臂呈直线)，取下采血针静脉穿刺针护套，待消毒液自然风干后进行穿刺。

      5)用大拇指顶住采血管尾部并将采血管推入持针器/套筒中，使采血针刺透胶塞(注意尽量保持针管从胶塞的中心位置均衡刺入，防止刺歪)，看见血液流入管中时松开压脉带:

      6)当首管采集完毕血液停止流入时，将管从持针器中拔出。须多管采集时，按照所推荐的采血顺序继续采集;

      7)采血后立即按建议的次数颠倒180度轻轻摇匀，使附加剂和血样充分混匀:

      8)当一支管血液停止流入管内时，立即拔管再将采血针从静脉中拔出。用己消毒的棉签压住穿刺部位并保持10分钟以卜，直至血液停止流出:

      9)将各用过的采血针丢弃于医疗废物收集器中，禁止重复使用。

How to use disposable intravenous collection needle (hard connection 21G)

1) Screw off the protective sleeve at the end of the tube plug puncture needle.

2) Screw the tube plug needle into the needle holder/sleeve and tighten it.

3) Select appropriate veins, tie the pulse zone for the patient, and disinfect the puncture site (it is forbidden to touch the area with hands after disinfection).

4) Let the patient's arm hang down (the upper arm and forearm are in a straight line), remove the sheath of the blood collecting needle and the venous puncture needle, and puncture after the disinfectant is naturally dried.

5) Hold the end of the blood collection vessel against the thumb and push the blood collection vessel into the needle holder/sleeve, so that the blood collection needle can pass through the rubber plug (pay attention to keep the needle evenly pierced from the central position of the rubber plug to prevent slanting), and loosen the pressure pulse belt when seeing the blood flowing into the tube:

6) When the blood flow stops after the collection of the first tube, pull the tube out of the needle holder. When multi-tube collection is required, blood collection should be continued according to the recommended blood collection sequence.

7) Immediately after blood collection, reverse 180 degrees and gently shake according to the recommended number of times, so that the additional agent and the blood sample are fully mixed:

8) When a tube of blood stops flowing into the tube, immediately pull out the tube and then pull out the blood needle from the vein. Press the puncture site with a sterilized cotton swab and hold it for 10 minutes until blood flow stops:

9) Discard the used blood collection needles in the medical waste collector, and do not reuse them.