Abstract Objective： To observe the application of ultrasonic technique in internal jugular vein puncturetube. Method： 75 cases of ASAⅠ-Ⅱ patient were selected randomly and divided into three groups（ 25 cases a group）：conventional group（ group I）， group of B-ultrasound localization（ groupⅡ）， group of B-ultrasound guidance（ group Ⅲ）.The time of puncture in the two groups， one-time successful puncture rates， puncture times and the complication rates
were observed. Result： One-time successful puncture rates in group Ⅲ was 92.0%， and the rates in group Ⅱ was 84.0%.The rates in group Ⅱ and Ⅲ weresignificantly higher than 60.0% in convention group. And the time of puncture in group Ⅱand Ⅲ were significantly less than group I. The comparison result had statistical significance（ P<0.05）. The complicationrates in group Ⅲ were 8.0% and 16.0% in group Ⅱ which were significantly less than 44.0% in group I. The comparisonresult had statistical significance（ P<0.05）. Conclusion： The ultrasonic technique in internal jugular vein puncture tubeis a highly-effective and safe technique to greatly improve the success rate of puncture， shorten the puncture time andreduce the complications which is worthy for extending in clinic.
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