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-  2018 

腹腔镜手术钳夹持组织过程中安全性研究

DOI: doi:10.7507/1001-5515.201611003

Keywords: 腹腔镜手术钳, 兔大肠, 压缩, 损伤, 病理性评价

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Abstract:

腹腔镜手术钳夹持组织操作过程中,过大的夹持力会造成组织损伤,引发各种术后并发症。本文应用活体兔大肠作为组织模型,利用试验研究、有限元模拟和病理性分析相结合的方法,对不同齿形和边缘倒角的手术钳钳头的夹持操作进行了安全性定量评估。结果表明,组织中产生的应力集中和组织中损伤最严重的部位均出现在与钳头边缘接触的区域;增加钳头边缘倒角曲率半径和齿形弧度,均可以减轻夹持时造成的组织损伤。试验结果可为无创手术钳的设计和选型提供基础数据

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