目的 探讨运用可视化穿刺系统建立微创急诊腹部探查影像系统的可行性.方法 将微型光纤(0.9 mm)送入18G穿刺针中,建立可视化穿刺系统.在5只健康犬尸体模型中,比较运用可视化穿刺系统及传统腹腔镜行腹部探查所需穿刺时间及切口大小.结果 可视化穿刺系统能够提供较为清晰的腹腔内脏器影像学图像;与传统腹腔镜探查比较,可视化穿刺系统所需穿刺时间更少[(2.54±0.32)s vs.(9.65±0.60)s,P<0.001],对受试对象造成的损害更小[切口大小(1.30±0.02) mm vs.(11.81±1.03) mm,P<0.001].结论 可视化穿刺系统成像性能初步满足设计需求,该系统的建立可能为后期急诊腹部探查提供新的仪器平台.
Objective To investigate the feasibility to perform emergency laparotomy using a visual puncture system.Methods A micro imaging fiber (0.9 mm) was delivered into the 18G needle to develop the visual puncture system.The comparison of puncture-to-abdomen time and incision size between the visual puncture system and traditional laparoscopy was investigated in five fresh cadavers of healthy canines.Results This visual puncture system provided clear image of abdominal viscerals.In comparison to the traditional group,the visual group had less puncture-to-abdomen time [(2.54±0.32) s vs.(9.65 ± 0.60) s,P< 0.001] and smaller incision size [(1.30±0.02) mm vs.(11.81 ± 1.03) rmm,P < 0.001].Conclusion This visual puncture system meets the requirements of initial design and provides an alternative platform for emergency laparotomy in future.