目的 探讨手机水平仪联合激光引导装置在CT引导下经皮肺穿刺中的应用价值。 方法 采用历史对照研究方法，选取2023年10月至2025年7月安徽医科大学第四附属医院收治需进行CT引导下经皮肺穿刺患者共60例（男45例，女15例），年龄（72.90 ± 8.82）岁， CT引导下肺穿刺患者的30例患者作为对照组，应用手机水平仪辅助的30例患者作为观察组。比较两组患者的同轴针进针次数、气胸发生率、出血程度、穿刺时间及穿刺角度等指标。 结果 观察组同轴针进针次数显著少于对照组［1.00（1.00，2.00）次 vs. 2.00（2.00，3.00）次，P < 0.001］，气胸发生率更低（13.3% vs. 36.6%，P = 0.037），穿刺时间更短［（24.90 ± 4.68）min vs. （29.93 ± 10.11）min，P = 0.02］，穿刺角度更大［19.50（7.75，41.00）°vs. 7.00（1.75，25.25）°，P = 0.04］，两组出血程度差异无统计学意义（P = 0.481）。 结论 手机水平仪联合激光引导装置可有效减少CT引导下经皮肺穿刺的同轴针进针次数，降低气胸发生率，缩短穿刺时间，且穿刺角度更大。

Objective To evaluate the application value of smartphone level meter combined with laser guidance device in CT-guided percutaneous lung puncture. Methods A historical control study was conducted， and enrolling 60 patients who underwent CT-guided lung puncture at the Fourth Affiliated Hospital of Anhui Medical University from October 2023 to July 2025. A total of 60 patients （45 males， 15 females） with a mean age of （72.90 ± 8.82） years were included. 30 patients who underwent CT-guided lung puncture， and 30 patients who received smartphone level meter-assisted procedures as the experimental group. The following parameters were compared between the two groups： coaxial needle insertion attempts， pneumothorax incidence， bleeding severity， puncture duration， and achievable puncture angle. Results The experimental group demonstrated significantly fewer coaxial needle insertion attempts ［1.00 （1.00， 2.00） vs. 2.00 （2.00， 3.00）， P < 0.001］， lower pneumothorax incidence （13.3% vs. 36.6%， P = 0.037）， shorter puncture duration ［（24.90 ± 4.68）min vs. （29.93 ± 10.11）min， P = 0.02］， and larger achievable puncture angles ［19.50° （7.75°， 41.00°） vs. 7.00° （1.75°， 25.25°）， P = 0.04］ compared to the control group. No statistically significant difference was observed in bleeding severity （P = 0.481）. Conclusions The combination of a smartphone level meter and laser guidance device effectively reduces the number of coaxial needle insertion attempts， lowers the incidence of pneumothorax， shortens the procedure duration， and enables a wider achievable puncture angle in CT-guided percutaneous lung puncture. This technique shows promising clinical application value for improving the safety and efficiency of the procedure.