经鼻腔翼管神经阻断术中所使用的弓形套管针李德胜，王恩普介绍为经鼻腔行翼管神经阻断术所设计的“弓形套管针”。该针以普通上颌窦穿刺针为针管，前端处理圆钝，针杆前１／５处焊接一根牙科不锈钢丝（２１号，直径０．８ｍｍ，长２０ｃｍ）于前端，根据蝶腭孔的开口在侧... Arcuate nasal cannula used in the blockage of arcuate trocar Li Desheng, Wang Enpu introduction of the nasal cavity through the pterygoid nerve block design of the “arcuate trocar.” The needle with a normal maxillary sinus puncture needle as a needle, the front handle blunt, 1/5 at the front of the needle bar welding a stainless steel wire (No. 21, diameter 0.8mm, length 20cm) at the front, according to the opening of the sphenopalatine fossa On the side ...