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目的为了提高肿瘤患者经外周静脉置入中心静脉导管(PICC)的成功率。方法选择本院2012年~2013年行肘上赛丁格技术PICC置管的肿瘤患者16例，选择可触摸的肘上贵要静脉，采用静脉留置针配合塞丁格穿刺置管。结果16例均成功置管，其中1针成功穿刺14例，2例2针成功穿刺，置管成功率提高。结论22G贝朗安全型静脉留置针配合塞丁格穿刺法应用于肿瘤化疗患者PICC置管术，提高了穿刺成功率。“,”Objective To improve the success rate of tumor chemotherapy patients with PICC catheter on the elbow using 22G swabs secure needle with plug dingle technology. Methods From 2012 to 2013,16 patients with tumor in our hospital on the dingle technology PICC catheter were selected, Choosing elbow to vein can be touched , intravenous indwel ing needle match dingle puncture catheter was adopt. Results Al 16 cases catheter were successful, 14 cases success on one needle puncture, 2 needle puncture success were 2 cases, success rate of catheter enhanced. Conclusion 22 G swabs secure venous indwel ing needle together with the plug dingle puncture method applied in the patients with tumor chemotherapy in PICC catheter improved the success rate of puncture.