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Nobuyoshi导管是日本国延吉正清研制并于90年代初应用于临床。其主要特点是经皮穿刺肽动脉插入，只用一根导管便可以完成左、右冠状动脉（冠脉）造影和左心室造影。这种方法的冠脉造影目前国内尚未见报道。我院自1996年10月至1997年8月，应用Nobuyoshi导管对24例患者进行了选择
Nobuyoshi catheter is developed by Japan Yanji Zhengqing and applied to clinic in early 90s. Its main feature is percutaneous puncture peptide artery insertion, only one catheter can be done left and right coronary artery (coronary) and left ventricular angiography. This method of coronary angiography has not been reported at home. Our hospital from October 1996 to August 1997, the application of Nobuyoshi catheter 24 patients were selected