经皮肾穿刺活组织检查是诊断弥漫性肾小球疾病的重要手段。目前国内开展肾穿刺活检大部分采用改良Menghini氏国产负压式肾穿刺针,操作多为传统的双人法(1人进针,1人给负压),因其手续繁杂,如配合不好将影响穿刺的成功率,增中并发症;负压过小常 Percutaneous renal biopsy is an important method to diagnose diffuse glomerular disease. At present, most of the domestic renal biopsy using modified Menghini domestic negative pressure renal puncture needle, the operation of the traditional double law (1 needle, 1 negative pressure), due to its complicated procedures, such as with the poor Affect the success rate of puncture, increased complications; negative pressure is too small