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目的:制作一款动脉留置针装置应用于重症医学科（ICU）患者中，探讨研制的动脉留置针装置在ICU患者中的使用效果。方法:选取2019年5—8月住院治疗进行有创血压监测的40例患者，采取自身对照法，将患者左手或右手使用传统静脉留置针为对照组，右手或左手使用自制动脉留置针为观察组。比较2组的操作人数、穿刺成功率、操作时间、血液污染、平均动脉压。结果:观察组操作人数只需1人，低于对照组2人。观察组穿刺成功率和血液污染率分别为67.5%（27/40）、0，优于对照组的30.0%（12/40）、77.5%（31/40），差异均有统计学意义（n χ2值为11.257、50.612，n P<0.01）。观察组操作时间和平均动脉压分别为（50.53 ± 14.12）s、（65.38 ± 18.03）mmHg（1 mmHg=0.133 kPa），对照组分别为（76.21 ± 8.28）s、（68.24 ± 17.07）mmHg，2组比较操作时间差异有统计学意义（n t值为13.63，n P0.05）。n 结论:自制动脉留置针装置结构简单、成本低廉、操作简便，缩短了操作时间，并节省人力成本同时避免了血液浪费和医源性感染的发生。“,”Objective:To make an arterial indwelling needle device for patients in intensive care unit (ICU), and to explore the effect of the developed arterial indwelling needle device in ICU patients.Methods:From May 2019 to August 2019, 40 patients with invasive blood pressure monitoring in hospital were selected for study. The self-control method was adopted. In the control group, the self-made arterial indwelling needle was used as the observation group in the right or left hand. The number of operators, success rate of puncture, operation time, blood contamination, and mean pressure were compared between the two groups.Results:The number of operators in the observation group was only 1 lower than two nurses in the control group. The puncture success rate and blood contamination rate of the observation group were 67.5% (27/40) and 0, which were better than those of the control group by 30.0% (12/40) and 77.5% (31/40). All had statistical significance (n χn 2 values were 11.257, 50.612, n P<0.01). The operation time and mean arterial pressure of the observation group were (50.53±14.12) s, (65.38±18.03) mmHg (1 mmHg=0.133kPa), while the control group was (76.21±8.28) s, (68.24±17.07) mmHg. The difference in operation time between the two groups was statistically significant (n t value was 13.63, n P0.05).n Conclusions:The self-made arterial indwelling needle device has a simple structure, low cost, and simple operation, which shortens the operation time and saves labor costs, and avoids the waste of blood and the occurrence of iatrogenic infections.