目前血管穿刺针无法判断外套管是否进入血管，穿刺后置入外套管成功率不高。
The current vascular puncture needle cannot judge whether an outer sleeve enters the blood vessel or not, and the success rate of inserting the outer sleeve after puncture is not high.
一种中心静脉穿刺针，解决现有穿刺针无法准确判断穿刺针穿入的血管是静脉还是动脉的问题。
A centre vein puncture needle solves the problem that the existing puncture needle can not accurately decide that a blood vessel being penetrated into by the puncture needle is a vein or an arterial.
本发明公开了一种血管内加热的输液装置，包括吊瓶、传输管、穿刺针；
The invention discloses an intravessel heating infusion device, comprising a transfusion bottle, a transmission pipe and a puncture needle;
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