背景:尽管目前有许多取石篮可用于胆管结石的取出,它们的机械性能尚未评估。本研究旨在通过检查胆管结石的机械特性来确定其特征。
方法:这项实验研究测试了七个胆管结石回收篮的机械性能。使用专用测量装置测量径向力(RF),并且使用常规手动方法测量轴向力(AF)。
结果:篮子之间的平均RF差异显着(p<0.001),对于VorticCatch(1.62N±0.02)和COAXIS(1.62N±0.04),其次是RASEN(1.27N±0.02),存储篮(0.95N±0.01),8线镍钛诺篮(0.93N±0.01),StoneHunter(0.78N±0.01)和花篮(0.37N±0.01),分别。篮子之间的平均AF差异显着(p<0.001),VorticCatch最高(0.668N±0.032),其次是同轴(0.629N±0.041),StoneHunter(0.574N±0.037),8线镍钛诺篮(0.546N±0.010),存储篮(0.542N±0.024),RASEN(0.435N±0.008)和花篮(0.297N±0.011),分别。根据RF和AF将篮子分为四组,其机械性能具有可比性:第1组,低RF和低AF;第2组,中度RF和中度AF;第3组,高RF和中度AF;第4组,高RF和高AF。
结论:这项研究揭示了用于提取胆管结石的各种回收篮的不同机械性能,这可以增强对他们行动的理解。我们的结果还可以帮助将来开发检索篮。
Although numerous retrieval baskets are currently available for the extraction of bile duct stones, their mechanical properties have not been evaluated. This study aimed to ascertain the characteristics of retrieval baskets for bile duct stones by examining their mechanical properties.
This experimental study tested the mechanical properties of seven retrieval baskets for bile duct stones. The radial force (RF) was measured using a dedicated measurement device and the axial force (AF) was measured using the conventional manual method.
The mean RF differed significantly among the baskets (p < 0.001) and was the strongest for VorticCatch (1.62 N ± 0.02) and COAXIS (1.62 N ± 0.04), followed by RASEN (1.27 N ± 0.02), Memory Basket (0.95 N ± 0.01), 8-wire Nitinol Basket (0.93 N ± 0.01), StoneHunter (0.78 N ± 0.01) and Flower Basket (0.37 N ± 0.01), respectively. The mean AF differed significantly among the baskets (p < 0.001) and was the highest for VorticCatch (0.668 N ± 0.032), followed by COAXIS (0.629 N ± 0.041), StoneHunter (0.574 N ± 0.037), 8-wire Nitinol Basket (0.546 N ± 0.010), Memory Basket (0.542 N ± 0.024), RASEN (0.435 N ± 0.008) and Flower Basket (0.297 N ± 0.011), respectively. The baskets were categorized into four groups with comparable mechanical properties based on the RF and AF: group 1, low RF and low AF; group 2, moderate RF and moderate AF; group 3, high RF and moderate AF; and group 4, high RF and high AF.
This study revealed distinct mechanical properties of various retrieval baskets used for extracting bile duct stones, which may enhance the understanding of their action. Our results could also aid the development of retrieval baskets in future.