介绍一种新型静脉穿刺留置针

目的：设计野战救护使用的静脉穿刺留置针。方法：将穿刺针套管后部空心管内面制成有若干个凹槽，穿刺针（芯）后部针柄活塞外周制有相应凸起，两者对合，凸起正好嵌于凹槽内，避免现行穿刺针针柄活塞与空心管无咬合状态而产生的旋转；将穿刺针柄一侧手持翼片由蝴蝶翅膀形改为长方形，便于操作者食、拇指拿捏，减少操作手方位便换。结果：经设计改进后可使穿刺针针头稳定，增加一次穿刺成功率。结论：设计改进后的静脉穿刺留置针可应用于野战战救。

Introduction of New-Type Intravenous Indwelling Needle

Objective To design an intravenous indwelling needle in battle field aid.Methods Several concavity were made on the hollow tube inner surface posterior puncture needle case,and some corresponding convexity uplifted peripheral needle handle pistons posterior puncture needle core.Revolution could be avoided because the needle handle pistons were just embedded in hollow tube concavity.It was convenient to operate and decreased the operator's orientation transformation by the needle's handhold vane adopting rectangle instead of butterfly shape.Results The improved puncture needle was stable and the rate of success of intravenous puncture was increased.Conclusion The improved venous retaining needle can be applied in battle field aid.