尿管中尿管接入的位置. 它是否会影响不同杯子中的流体流动?
Gabriel Faria-Costa1,2, Arman Tsaturyan3, Angelis Peteinaris3
1Department of Urology, Unidade Local de Saúde de Matosinhos, Matosinhos, Portugal.
Central European journal of urology
|December 4, 2023
概括
尿道接入 (UAS) 的尺寸和位置会影响柔性尿道透视 (fURS) 期间的流体动力学. 中部尿管的放置改善了较低的阴囊外流,而较大的阴囊增加了上部通道的流量.
科学领域:
- 泌尿器科 泌尿器科 泌尿器科 泌尿器科
- 医疗工程 医疗工程
- 流体动力学 流体动力学
背景情况:
- 柔性尿道透视 (fURS) 是治疗结石的关键手术.
- 管理内压力和外流对于fURS的安全性和有效性至关重要.
- 尿道接入 (UAS) 用于促进仪器通道和灌,但它们对流体动态的影响是复杂的.
研究的目的:
- 为了研究不同的尿路接入 (UAS) 尺寸和位置如何影响fURS期间在皮叶体系统内的液体外流.
- 为了确定最佳的UAS参数,以改善灌和降低内压力.
主要方法:
- 用一个猪模型来模拟fURS条件.
- 实验涉及不同的UAS大小 (9.5/11.5 Fr, 12/14 Fr, 14/16 Fr) 和位置 (UPJ下方,尿道中部).
- 通过使用标准化灌方案,在盆,上和下中进行了外流测量.
主要成果:
- 在尿管中部放置UAS显著增加了下方阴道的外流.
- 将UAS大小增加到12/14 Fr改善了盆和上的外流,但不是下.
- 将UAS大小进一步增加到14/16 Fr并没有产生额外的流量改善.
结论:
- 在fURS过程中,流体动力学会根据状的位置和UAS参数显著变化.
- 无人机系统的位置对于较低的玻璃杯外流至关重要,而无人机系统的直径在上层区域更具影响力.
- 这些发现应该指导UAS在fURS期间的选择和放置,特别是在高功率激光石化术中.
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