目的:探索提高经皮腰椎间盘穿刺准确性及安全性的定位方法。方法:通过经皮腰椎间盘后1/3穿刺入路的解剖研究及腰椎间盘CT测量,根据几何函数原理研制出一种经皮腰椎间盘穿刺定位仪器。临床应用于经皮腰椎间盘穿刺36例。结果:一次性穿刺成功率为100%,穿刺时间为22~43min,X线透视时间为4~16min。结论:该经皮椎间盘穿刺定位仪操作简便、穿刺安全准确,可减少X线辐射伤害,为临床经皮腰椎间盘切除或激光减压术提供了方便。 Objective: To explore ways to improve the accuracy and safety of percutaneous lumbar disc puncture. Methods: Percutaneous lumbar intervertebral disc puncture approach anatomy and lumbar intervertebral disc CT measurement, according to the principle of geometric functions developed a percutaneous lumbar disc puncture localization instrument. Clinical application of percutaneous lumbar disc puncture in 36 cases. Results: One-time puncture success rate was 100%, puncture time was 22~43min, X-ray fluoroscopy time was 4~16min. Conclusion: The percutaneous lumbar puncture locator is simple, safe and accurate to puncture, can reduce X-ray radiation damage, and provides convenience for clinical percutaneous lumbar discectomy or laser decompression.